Manuel Kleiner

https://orcid.org/0000-0001-6904-0287

Metaproteomics, Microbiome, Symbiosis, Metagenomics, Microbial Physiology, Carbon Fixation Pathways

Works (88)

Updated: September 7th, 2023 05:01

2023 journal article

De novo phytosterol synthesis in animals

SCIENCE, 380(6644), 520–526.

MeSH headings : Animals; Cholesterol / metabolism; Phylogeny; Plants / metabolism; Sitosterols / metabolism; Annelida / metabolism
Sources: ORCID, Web Of Science
Added: May 5, 2023

2023 article

Evaluation of ready-to-use freezer stocks of a synthetic microbial community for maize root colonization

Parnell, J. J., Vintila, S., Tang, C., Wagner, M. R., & Kleiner, M. (2023, May 10).

By: J. Parnell n, S. Vintila n, C. Tang n, M. Wagner* & M. Kleiner n

Source: ORCID
Added: May 11, 2023

2023 article

Legacy effects of precipitation and land use impact maize growth and microbiome assembly under drought stress

Swift, J. F., Kolp, M. R., Carmichael, A., Ford, N. E., Hansen, P. M., Sikes, B. A., … Wagner, M. R. (2023, April 12).

By: J. Swift*, M. Kolp*, A. Carmichael*, N. Ford*, P. Hansen*, B. Sikes*, M. Kleiner n, M. Wagner*

Source: ORCID
Added: April 18, 2023

2023 article

Metabolic handoffs between multiple symbionts may benefit the deep-sea bathymodioline mussels

Zvi-Kedem, T., Vintila, S., Kleiner, M., Tchernov, D., & Rubin-Blum, M. (2023, February 10).

By: T. Zvi-Kedem*, S. Vintila n, M. Kleiner n, D. Tchernov* & M. Rubin-Blum*

Source: ORCID
Added: February 11, 2023

2023 journal article

Metabolic handoffs between multiple symbionts may benefit the deep-sea bathymodioline mussels

ISME COMMUNICATIONS, 3(1).

By: T. Zvi-Kedem*, S. Vintila n, M. Kleiner n, D. Tchernov* & M. Rubin-Blum*

Sources: Web Of Science, ORCID
Added: September 5, 2023

2023 article

Re-engineering a lost trait:IPD3, a master regulator of arbuscular mycorrhizal symbiosis, affects genes for immunity and metabolism of non-host Arabidopsis when restored long after its evolutionary loss

Hornstein, E. D., Charles, M., Franklin, M., Edwards, B., Vintila, S., Kleiner, M., & Sederoff, H. (2023, March 7).

Source: ORCID
Added: March 8, 2023

2023 journal article

Ultra-sensitive isotope probing to quantify activity and substrate assimilation in microbiomes

MICROBIOME, 11(1).

By: M. Kleiner n, A. Kouris*, M. Violette, G. D'Angelo n, Y. Liu*, A. Korenek n, N. Tolic*, T. Sachsenberg* ...

MeSH headings : Humans; Carbon Isotopes / analysis; Carbon Isotopes / metabolism; Chromatography, Liquid; Tandem Mass Spectrometry / methods; Microbiota; DNA Probes
Sources: Web Of Science, ORCID
Added: March 13, 2023

2022 journal article

Considerations for constructing a protein sequence database for metaproteomics

COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL, 20, 937–952.

By: J. Blakeley-Ruiz n & M. Kleiner n

author keywords: Metaproteome; Metagenomics; Microbiome; Microbial community; Multi-omics; Microbiota; Microbial ecology
Sources: Web Of Science, ORCID
Added: April 25, 2022

2022 article

De novo phytosterol synthesis in animals

Michellod, D., Bien, T., Birgel, D., Jensen, M., Kleiner, M., Fearn, S., … Liebeke, M. (2022, April 22). (Vol. 4). Vol. 4.

Source: ORCID
Added: May 19, 2022

2022 review

Dietary protein and the intestinal microbiota: An understudied relationship

[Review of ]. ISCIENCE, 25(11).

By: A. Bartlett* & M. Kleiner*

Sources: Web Of Science, ORCID
Added: December 5, 2022

2022 journal article

Elucidating Plant-Microbe-Environment Interactions Through Omics-Enabled Metabolic Modelling Using Synthetic Communities

FRONTIERS IN PLANT SCIENCE, 13.

By: A. Beck*, M. Kleiner n & A. Garrell n

author keywords: synthetic communities; plant microbiome; plant microbial interactions; metabolic modelling; flux balance analysis; elementary flux mode analysis
Sources: Web Of Science, ORCID
Added: December 5, 2022

2022 journal article

Evaluation of Protein Extraction Methods for Metaproteomic Analyses of Root-Associated Microbes

MOLECULAR PLANT-MICROBE INTERACTIONS, 35(11), 977–988.

By: F. Salvato n, S. Vintila n, O. Finkel*, J. Dangl* & M. Kleiner n

author keywords: endosphere; metaproteomics; microbiome; microbiota; phytobiome; plant-microbe interactions; rhizoplane
MeSH headings : Arabidopsis; Microbiota; Chromatography, Liquid; Proteome; Mass Spectrometry; Plants
Sources: Web Of Science, ORCID
Added: November 1, 2022

2022 journal article

Fidelity varies in the symbiosis between a gutless marine worm and its microbial consortium

MICROBIOME, 10(1).

By: Y. Sato*, J. Wippler*, C. Wentrup*, R. Ansorge*, M. Sadowski*, H. Gruber-Vodicka*, N. Dubilier*, M. Kleiner n

author keywords: Microbiome; Animal-bacterial symbiosis; Symbiont transmission; Phylosymbiosis; Intraspecific genetic variation
MeSH headings : Animals; Bacteria / genetics; Microbial Consortia; Phylogeny; Sulfates; Sulfur; Symbiosis; Annelida / microbiology
Sources: Web Of Science, ORCID
Added: November 7, 2022

2021 journal article

Activation of the Type VI Secretion System in the Squid Symbiont Vibrio fischeri Requires the Transcriptional Regulator TasR and the Structural Proteins TssM and TssA

JOURNAL OF BACTERIOLOGY, 203(21).

By: S. Smith*, F. Salvato n, A. Garikipati*, M. Kleiner n & A. Septer*

author keywords: type VI secretion systems; Aliivibrio fischeri; microbial interactions; genomic island; symbiosis
MeSH headings : Aliivibrio fischeri / genetics; Aliivibrio fischeri / metabolism; Bacterial Proteins / genetics; Bacterial Proteins / metabolism; Gene Expression Regulation, Bacterial / physiology; Genotype; Mutation; Promoter Regions, Genetic; Type VI Secretion Systems / genetics; Type VI Secretion Systems / metabolism
Sources: Web Of Science, ORCID
Added: November 1, 2021

2021 journal article

Bacterial symbiont subpopulations have different roles in a deep-sea symbiosis

ELIFE, 10.

By: T. Hinzke*, M. Kleiner n, M. Meister*, R. Schlueter, C. Hentschker*, J. Pane-Farre*, P. Hildebrandt*, H. Felbeck* ...

MeSH headings : Animals; Bacteria / isolation & purification; Bacterial Physiological Phenomena; Hydrothermal Vents / microbiology; Polychaeta / microbiology; Symbiosis
Sources: ORCID, Web Of Science
Added: January 18, 2021

2021 journal article

Critical Assessment of MetaProteome Investigation (CAMPI): a multi-laboratory comparison of established workflows

NATURE COMMUNICATIONS, 12(1).

MeSH headings : Adult; Bacteria / classification; Bacteria / genetics; Bacteria / isolation & purification; Bacterial Proteins / chemistry; Bacterial Proteins / genetics; Feces / microbiology; Female; Gastrointestinal Microbiome; Humans; Intestines / microbiology; Laboratories; Mass Spectrometry; Peptides / chemistry; Proteomics / methods; Workflow
Sources: Web Of Science, ORCID
Added: January 3, 2022

2021 journal article

Evaluation of RNAlater as a Field-Compatible Preservation Method for Metaproteomic Analyses of Bacterium-Animal Symbioses

MICROBIOLOGY SPECTRUM, 9(2).

By: M. Jensen n, J. Wippler* & M. Kleiner n

Ed(s): J. Gralnick

author keywords: mass spectrometry; 1D-LC-MS/MS; microbial communities; preservation methods; microbiome; field sampling; environmental microbiology
MeSH headings : Animals; Annelida / microbiology; Annelida / physiology; Bacteria / classification; Bacteria / genetics; Bacteria / isolation & purification; Bacterial Physiological Phenomena; Bacterial Proteins / genetics; Bacterial Proteins / metabolism; Phylogeny; Preservation, Biological / methods; Proteomics; Symbiosis
Sources: ORCID, Web Of Science
Added: October 28, 2021

2021 article

Evaluation of RNAlater™ as a field-compatible preservation method for metaproteomic analyses of bacteria-animal symbioses

Jensen, M., Wippler, J., & Kleiner, M. (2021, June 17). (Vol. 6). Vol. 6.

By: M. Jensen n, J. Wippler* & M. Kleiner n

Source: ORCID
Added: August 9, 2021

2021 journal article

Evaluation of Sample Preservation and Storage Methods for Metaproteomics Analysis of Intestinal Microbiomes

MICROBIOLOGY SPECTRUM, 9(3).

By: A. Mordant n & M. Kleiner n

Ed(s): C. Khursigara

author keywords: gut microbes; intestinal microbiome; LC-MS/MS; metaproteomics; microbiota; sample preservation; storage
MeSH headings : Animals; Bacteria / chemistry; Bacteria / genetics; Bacteria / isolation & purification; Bacterial Proteins / chemistry; Chromatography, Liquid; Feces / chemistry; Feces / microbiology; Female; Gastrointestinal Microbiome; Male; Mice; Mice, Inbred C57BL; Peptides / chemistry; Preservation, Biological / methods; Proteomics / methods; Tandem Mass Spectrometry
Sources: ORCID, Web Of Science
Added: December 16, 2021

2021 article

Fidelity varies in the symbiosis between a gutless marine worm and its microbial consortium

Sato, Y., Wippler, J., Wentrup, C., Ansorge, R., Sadowski, M., Gruber-Vodicka, H., … Kleiner, M. (2021, January 30). (Vol. 1). Vol. 1.

By: Y. Sato*, J. Wippler*, C. Wentrup*, R. Ansorge*, M. Sadowski*, H. Gruber-Vodicka*, N. Dubilier*, M. Kleiner n

Source: ORCID
Added: August 9, 2021

2021 review

Five key aspects of metaproteomics as a tool to understand functional interactions in host-associated microbiomes

(D. A. Hogan, Ed.) [Review of ]. PLOS PATHOGENS, 17(2).

By: F. Salvato n, R. Hettich* & M. Kleiner n

Ed(s): D. Hogan

MeSH headings : Bacteria / classification; Bacteria / isolation & purification; Bacteria / metabolism; Computational Biology; Host Microbial Interactions; Humans; Microbiota; Proteome / analysis; Proteome / metabolism; Proteomics / methods
Sources: Web Of Science, ORCID
Added: February 26, 2021

2021 article

Highly variable fidelity drives symbiont community composition in an obligate symbiosis

Mankowski, A., Kleiner, M., Erséus, C., Leisch, N., Sato, Y., Volland, J.-M., … Gruber-Vodicka, H. (2021, April 28). (Vol. 4). Vol. 4.

By: A. Mankowski*, M. Kleiner n, C. Erséus*, N. Leisch*, Y. Sato*, J. Volland*, B. Hüttel*, C. Wentrup* ...

Source: ORCID
Added: August 9, 2021

2021 article

Life in the Dark: Phylogenetic and Physiological Diversity of Chemosynthetic Symbioses

ANNUAL REVIEW OF MICROBIOLOGY, VOL 75, 2021, Vol. 75, pp. 695–718.

By: E. Maggie Sogin, M. Kleiner n, C. Borowski*, H. Gruber-Vodicka* & N. Dubilier*

author keywords: chemosymbiosis; host-microbe associations; nutritional interactions; adaptations to symbiosis; metabolism; thiotroph; methanotroph
MeSH headings : Animals; Bacteria / genetics; Bacteria / metabolism; Ecosystem; Hydrothermal Vents; Phylogeny; Symbiosis / physiology
Sources: Web Of Science, ORCID
Added: November 15, 2021

2021 journal article

Microbe-dependent heterosis in maize

Proceedings of the National Academy of Sciences, 118(30).

By: M. Wagner*, C. Tang n, F. Salvato n, K. Clouse*, A. Bartlett n, S. Vintila n, L. Phillips*, S. Sermons n ...

author keywords: hybrid vigor; microbiome; maize; endophytes; rhizosphere
MeSH headings : Bacteria / metabolism; Fungi / physiology; Hybrid Vigor; Seedlings / growth & development; Seedlings / microbiology; Soil Microbiology; Zea mays / growth & development; Zea mays / microbiology
Sources: Web Of Science, ORCID, Crossref
Added: July 21, 2021

2021 journal article

Proteome and strain analysis of cyanobacterium Candidatus "Phormidium alkaliphilum" reveals traits for success in biotechnology

ISCIENCE, 24(12).

By: M. Ataeian*, A. Vadlamani*, M. Haines*, D. Mosier*, X. Dong*, M. Kleiner n, M. Strous*, A. Hawley*

Sources: ORCID, Web Of Science
Added: November 7, 2021

2021 article

Ultra-sensitive isotope probing to quantify activity and substrate assimilation in microbiomes

Kleiner, M., Kouris, A., Jensen, M., Grace, D. A., Liu, Y., Korenek, A., … Strous, M. (2021, March 30). (Vol. 3). Vol. 3.

By: M. Kleiner n, A. Kouris*, M. Jensen n, D. Grace, Y. Liu*, A. Korenek, N. Tolić, T. Sachsenberg ...

Source: ORCID
Added: August 9, 2021

2020 journal article

Comparative proteomics of related symbiotic mussel species reveals high variability of host–symbiont interactions

The ISME Journal, 14(2), 649–656.

By: R. Ponnudurai*, S. Heiden*, L. Sayavedra*, T. Hinzke*, M. Kleiner n, C. Hentschker*, H. Felbeck*, S. Sievert* ...

MeSH headings : Amino Acids / genetics; Amino Acids / metabolism; Animals; Bacteria / genetics; Bacteria / metabolism; Carbonic Anhydrases / metabolism; Chemoautotrophic Growth; Genome, Bacterial / genetics; Gills / metabolism; Host Microbial Interactions; Mytilidae / metabolism; Mytilidae / microbiology; Proteomics; Symbiosis / genetics; Symbiosis / physiology
Source: ORCID
Added: January 30, 2020

2020 journal article

Environmental Viscosity Modulates Interbacterial Killing during Habitat Transition

MBIO, 11(1).

By: L. Speare*, S. Smith*, F. Salvato n, M. Kleiner n & A. Septer*

author keywords: Aliivibrio fischeri; aggregation; competition; proteomics; type VI secretion
MeSH headings : Aliivibrio fischeri / genetics; Aliivibrio fischeri / physiology; Animals; Decapodiformes / microbiology; Ecosystem; Gene Expression Regulation, Bacterial; Genotype; Proteomics; Seawater; Symbiosis; Type VI Secretion Systems / genetics; Type VI Secretion Systems / metabolism; Viscosity
Sources: Web Of Science, ORCID
Added: April 6, 2020

2020 journal article

High-Quality Draft Genome Sequences of Two Deltaproteobacterial Endosymbionts, Delta1a and Delta1b, from the Uncultured Sva0081 Clade, Assembled from Metagenomes of the Gutless Marine Worm Olavius algarvensis

MICROBIOLOGY RESOURCE ANNOUNCEMENTS, 9(16).

By: Y. Sato*, J. Wippler*, C. Wentrup*, N. Dubilier* & M. Kleiner n

Sources: Web Of Science, ORCID
Added: May 8, 2020

2020 journal article

High-Quality Draft Genome Sequences of the Uncultured Delta3 Endosymbiont (Deltaproteobacteria) Assembled from Metagenomes of the Gutless Marine Worm Olavius algarvensis

MICROBIOLOGY RESOURCE ANNOUNCEMENTS, 9(31).

By: Y. Sato, J. Wippler, C. Wentrup, T. Woyke, N. Dubilier & M. Kleiner

Sources: Web Of Science, ORCID
Added: October 5, 2020

2020 journal article

High-Quality Draft Genome Sequences of the Uncultured Delta3 Endosymbiont (Deltaproteobacteria) Assembled from Metagenomes of the Gutless Marine Worm Olavius algarvensis

MICROBIOLOGY RESOURCE ANNOUNCEMENTS, 9(31).

By: Y. Sato*, J. Wippler*, C. Wentrup*, T. Woyke*, N. Dubilier* & M. Kleiner n

Ed(s): F. Stewart

Sources: Web Of Science, ORCID
Added: June 14, 2021

2020 journal article

Horizontal acquisition of a patchwork Calvin cycle by symbiotic and free-living Campylobacterota (formerly Epsilonproteobacteria)

ISME JOURNAL, 14(1), 104–122.

MeSH headings : Animals; Bivalvia / microbiology; Carbon Cycle; Citric Acid Cycle; Epsilonproteobacteria / classification; Epsilonproteobacteria / genetics; Epsilonproteobacteria / metabolism; Gammaproteobacteria / genetics; Photosynthesis; Phylogeny; Symbiosis
Sources: Web Of Science, ORCID
Added: January 6, 2020

2020 article

Metabolic differences between symbiont subpopulations in the deep-sea tubeworm Riftia pachyptila

Hinzke, T., Kleiner, M., Meister, M., Schlüter, R., Hentschker, C., Pané-Farré, J., … Markert, S. (2020, April 9). (Vol. 4). Vol. 4.

By: T. Hinzke*, M. Kleiner n, M. Meister*, R. Schlüter*, C. Hentschker*, J. Pané-Farré*, P. Hildebrandt*, H. Felbeck* ...

Source: ORCID
Added: August 9, 2021

2020 article

Microbe-dependent heterosis in maize

Wagner, M. R., Tang, C., Salvato, F., Clouse, K. M., Bartlett, A., Sermons, S., … Kleiner, M. (2020, May 7). (Vol. 5). Vol. 5.

By: M. Wagner*, C. Tang n, F. Salvato n, K. Clouse*, A. Bartlett n, S. Sermons n, M. Hoffmann n, P. Balint-Kurti n, M. Kleiner n

Source: ORCID
Added: May 8, 2020

2020 article

Microbial DNA on the move: sequencing based detection and analysis of transduced DNA in pure cultures and microbial communities

Kleiner, M., Bushnell, B., Sanderson, K. E., Hooper, L. V., & Duerkop, B. A. (2020, January 16). (Vol. 1). Vol. 1.

By: M. Kleiner n, B. Bushnell, K. Sanderson*, L. Hooper & B. Duerkop*

Source: ORCID
Added: August 9, 2021

2020 journal article

Transductomics: sequencing-based detection and analysis of transduced DNA in pure cultures and microbial communities

MICROBIOME, 8(1).

By: M. Kleiner n, B. Bushnell*, K. Sanderson*, L. Hooper* & B. Duerkop*

MeSH headings : Animals; DNA, Bacterial / analysis; DNA, Bacterial / genetics; Gastrointestinal Microbiome / genetics; Gene Transfer, Horizontal / genetics; Genomics; Male; Mice; Mice, Inbred C57BL; Microbiota / genetics; Reproducibility of Results; Transduction, Genetic
Sources: Web Of Science, ORCID
Added: December 21, 2020

2019 journal article

A shared core microbiome in soda lakes separated by large distances

NATURE COMMUNICATIONS, 10.

By: J. Zorz*, C. Sharp*, M. Kleiner n, P. Gordon*, R. Pon*, X. Dong*, M. Strous*

Sources: Web Of Science, ORCID
Added: October 7, 2019

2019 journal article

Chemosynthetic symbiont with a drastically reduced genome serves as primary energy storage in the marine flatworm Paracatenula

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 116(17), 8505–8514.

By: O. Jaeckle, B. Seah*, M. Tietjen*, N. Leisch*, M. Liebeke*, M. Kleiner n, J. Berg*, H. Gruber-Vodicka*

author keywords: endosymbiont; chemoautotrophic; ecophysiology; energy storage; host nutrition
MeSH headings : Animals; Chemoautotrophic Growth / genetics; Chemoautotrophic Growth / physiology; Genome, Bacterial / genetics; Metabolic Networks and Pathways; Platyhelminths / metabolism; Platyhelminths / microbiology; Platyhelminths / physiology; Rhodospirillaceae / genetics; Rhodospirillaceae / physiology; Symbiosis / genetics; Symbiosis / physiology
Sources: Web Of Science, ORCID
Added: May 6, 2019

2019 journal article

Genetic evidence for two carbon fixation pathways (the Calvin-Benson-Bassham Cycle and the Reverse Tricarboxylic Acid Cycle) in symbiotic and free-living bacteria

MSphere, 4(1), e00394–18.

By: M. Rubin-Blum*, N. Dubilier* & M. Kleiner n

Ed(s): S. Hallam

author keywords: carbon dioxide assimilation; carbon metabolism; electron transport; lithoautotrophic metabolism; symbiosis
MeSH headings : Animals; Bacterial Proteins / metabolism; Carbon Cycle; Carbon Dioxide / metabolism; Chromatiaceae / physiology; Citric Acid Cycle; DNA, Bacterial; Photosynthesis; Phylogeny; Polychaeta / microbiology; Symbiosis
Sources: Web Of Science, ORCID
Added: February 7, 2019

2019 journal article

Host-Microbe Interactions in the Chemosynthetic Riftia pachyptila Symbiosis.

MBio, 10(6).

By: T. Hinzke*, M. Kleiner n, C. Breusing*, H. Felbeck*, R. Häsler*, S. Sievert*, R. Schlüter*, P. Rosenstiel* ...

Ed(s): D. Distel & E. Ruby

author keywords: host-microbe interactions; symbiosis; holobiont; chemosynthesis; hydrothermal vents; metaproteomics
MeSH headings : Adaptation, Biological; Animal Nutritional Physiological Phenomena; Animals; Aquatic Organisms; Energy Metabolism; Metabolic Networks and Pathways; Metabolome; Microbiota; Oxidation-Reduction; Polychaeta / metabolism; Polychaeta / microbiology; Polychaeta / ultrastructure; Proteome; Proteomics / methods; Seawater; Symbiosis
Source: ORCID
Added: January 30, 2020

2019 article

Host-microbe interactions in the chemosyntheticRiftia pachyptilasymbiosis

Hinzke, T., Kleiner, M., Breusing, C., Felbeck, H., Häsler, R., Sievert, S. M., … Markert, S. (2019, May 27). (Vol. 5). Vol. 5.

By: T. Hinzke*, M. Kleiner n, C. Breusing*, H. Felbeck*, R. Häsler, S. Sievert*, R. Schlüter, P. Rosenstiel* ...

Source: ORCID
Added: August 9, 2021

2019 journal article

Metaproteomics: Much More than Measuring Gene Expression in Microbial Communities

MSYSTEMS, 4(3).

By: M. Kleiner n

author keywords: LC-MS; metagenomics; metaproteomics; metatranscriptomics; microbiome; microbiota; proteomics; symbiosis
Sources: Web Of Science, ORCID
Added: September 9, 2019

2019 journal article

More Is Not Always Better: Evaluation of 1D and 2D-LC-MS/MS Methods for Metaproteomics

FRONTIERS IN MICROBIOLOGY, 10.

By: T. Hinzke*, A. Kouris*, R. Hughes n, M. Strous* & M. Kleiner n

author keywords: microbiota; microbiome; mock community; method evaluation; microbial ecology; Q Exactive; liquid chromatography; GeLC
Sources: Web Of Science, ORCID
Added: March 4, 2019

2019 journal article

Sulfur-Oxidizing Symbionts without Canonical Genes for Autotrophic CO2 Fixation

MBIO, 10(3).

Ed(s): S. Giovannoni

author keywords: gammaproteobacteria; chemosynthesis; ectosymbiont; lithoheterotrophy; meiofauna; protist
MeSH headings : Aquatic Organisms / microbiology; Autotrophic Processes; Bacteria / genetics; Bacteria / metabolism; Carbon Cycle / genetics; Carbon Dioxide / metabolism; Ciliophora / microbiology; Gene Expression Profiling; Genomics; Italy; Oxidation-Reduction; RNA, Ribosomal, 16S / genetics; Sulfur / metabolism; Symbiosis
Sources: Web Of Science, ORCID
Added: July 22, 2019

2019 article

Sulfur-oxidizing symbionts without canonical genes for autotrophic CO2fixation

Seah, B. K. B., Antony, C. P., Huettel, B., Zarzycki, J., Borzyskowski, L. S., Erb, T. J., … Gruber-Vodicka, H. R. (2019, February 5). (Vol. 2). Vol. 2.

Source: ORCID
Added: August 9, 2021

2019 article

TheTrichoplaxmicrobiome: the simplest animal lives in an intimate symbiosis with two intracellular bacteria

Gruber-Vodicka, H. R., Leisch, N., Kleiner, M., Hinzke, T., Liebeke, M., McFall-Ngai, M., … Dubilier, N. (2019, March 5). (Vol. 3). Vol. 3.

Source: ORCID
Added: August 9, 2021

2019 journal article

Two intracellular and cell type-specific bacterial symbionts in the placozoan Trichoplax H2

NATURE MICROBIOLOGY, 4(9), 1465–1474.

MeSH headings : Animals; Bacteria / classification; Bacteria / genetics; Bacteria / metabolism; Biosynthetic Pathways; Endoplasmic Reticulum, Rough / microbiology; Genome, Bacterial / genetics; Microbiota / genetics; Phylogeny; Placozoa / cytology; Placozoa / microbiology; Species Specificity; Symbiosis; Vacuoles / microbiology; Water Microbiology
Sources: Web Of Science, ORCID
Added: September 9, 2019

2018 article

A metaproteomics method to determine carbon sources and assimilation pathways of species in microbial communities

Kleiner, M., Dong, X., Hinzke, T., Wippler, J., Thorson, E., Mayer, B., & Strous, M. (2018, January 9). (Vol. 1). Vol. 1.

By: M. Kleiner n, X. Dong*, T. Hinzke*, J. Wippler*, E. Thorson*, B. Mayer*, M. Strous*

Source: ORCID
Added: August 9, 2021

2018 journal article

Author Correction: Chemosynthetic symbionts of marine invertebrate animals are capable of nitrogen fixation

Nature Microbiology, 3(8), 961–961.

Sources: Crossref, ORCID
Added: January 25, 2020

2018 journal article

Centrifugation-based enrichment of bacterial cell populations for metaproteomic studies on bacteria-invertebrate symbioses

Springer, 1841, 319–334.

By: T. Hinzke*, M. Kleiner n & S. Markert*

Ed(s): D. Becher

author keywords: Bacteria-invertebrate symbiosis; Metaproteome; Differential pelleting; Rate-zonal density gradient centrifugation; Isopycnic density gradient centrifugation; Percoll (R); HistoDenz (TM)
MeSH headings : Animals; Bacteria / metabolism; Centrifugation / methods; Centrifugation, Density Gradient; Invertebrates / microbiology; Proteome; Proteomics / methods; Symbiosis
Sources: Web Of Science, ORCID
Added: February 7, 2019

2018 journal article

Comparative Proteomics of Three Species of Ammonia-Oxidizing Bacteria.

Frontiers in Microbiology.

author keywords: nitrification; Nitrosomonas europaea; Nitrosomonas ureae; Nitrosospira multiformis; Calvin-Benson-Bassham cycle; Q Exactive Plus; proteomics; ammonia-oxidizing bacteria (AOB)
Source: ORCID
Added: February 3, 2019

2018 article

Horizontal acquisition of a patchwork Calvin cycle by symbiotic and free-living Campylobacterota (formerly Epsilonproteobacteria)

Assié, A., Leisch, N., Meier, D. V., Gruber-Vodicka, H., Tegetmeyer, H. E., Meyerdirks, A., … Petersen, J. M. (2018, October 8). (Vol. 10). Vol. 10.

By: A. Assié*, N. Leisch*, D. Meier*, H. Gruber-Vodicka*, H. Tegetmeyer*, A. Meyerdirks*, M. Kleiner n, T. Hinzke* ...

Source: ORCID
Added: August 9, 2021

2018 journal article

Metaproteomics method to determine carbon sources and assimilation pathways of species in microbial communities

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 115(24), E5576–E5584.

By: M. Kleiner n, X. Dong*, T. Hinzke*, J. Wippler*, E. Thorson*, B. Mayer*, M. Strous*

author keywords: Protein-SIP; metaproteome; microbial ecology; microbiome; Q Exactive
MeSH headings : Animals; Carbon / metabolism; Carbon Isotopes / metabolism; Environmental Microbiology; Isotope Labeling / methods; Metabolic Networks and Pathways / physiology; Microbiota / physiology; Proteome / metabolism; Proteomics / methods; Software; Symbiosis / physiology
Sources: Web Of Science, ORCID
Added: August 6, 2018

2018 journal article

Murine colitis reveals a disease-associated bacteriophage community

NATURE MICROBIOLOGY, 3(9), 1023–1031.

MeSH headings : Animals; Bacteriophages / genetics; Bacteriophages / isolation & purification; Cells, Cultured; Colitis / pathology; Colitis / virology; Disease Models, Animal; Dysbiosis / virology; Gastrointestinal Microbiome / physiology; Genome, Viral / genetics; Humans; Intestinal Mucosa / virology; Male; Mice; Mice, Inbred C57BL; Mice, Knockout
Sources: Web Of Science, ORCID
Added: October 19, 2018

2018 journal article

Synergy of Sodium Nitroprusside and Nitrate in Inhibiting the Activity of Sulfate Reducing Bacteria in Oil-Containing Bioreactors

FRONTIERS IN MICROBIOLOGY, 9.

By: T. Fida*, J. Voordouw*, M. Ataeian*, M. Kleiner n, G. Okpala*, J. Mand*, G. Voordouw*

author keywords: souring control; biocide; sulfate reduction; hydrogen sulfide; sodium nitroprusside
Sources: Web Of Science, ORCID
Added: August 6, 2018

2017 journal article

Assessing species biomass contributions in microbial communities via metaproteomics

NATURE COMMUNICATIONS, 8.

By: M. Kleiner n, E. Thorson*, C. Sharp*, X. Dong*, D. Liu*, C. Li*, M. Strous*

MeSH headings : Archaea / classification; Archaea / genetics; Archaea / metabolism; Bacteria / classification; Bacteria / genetics; Bacteria / metabolism; Bacteriophages / classification; Bacteriophages / genetics; Bacteriophages / metabolism; Biomass; Genomics / methods; Humans; Lakes / microbiology; Microbiota / genetics; Microbiota / physiology; Proteome / metabolism; Proteomics / methods; RNA, Ribosomal, 16S / genetics; Saliva / microbiology
Sources: Web Of Science, ORCID
Added: August 6, 2018

2017 article

Assessing species biomass contributions in microbial communities via metaproteomics

Kleiner, M., Thorson, E., Sharp, C. E., Dong, X., Liu, D., Li, C., & Strous, M. (2017, April). (Vol. 4). Vol. 4.

By: M. Kleiner n, E. Thorson*, C. Sharp*, X. Dong*, D. Liu*, C. Li*, M. Strous*

Source: ORCID
Added: February 3, 2019

2017 journal article

Fast and Simple Analysis of MiSeq Amplicon Sequencing Data with MetaAmp

Frontiers in Microbiology, 8.

By: X. Dong*, M. Kleiner*, C. Sharp*, E. Thorson*, C. Li*, D. Liu*, M. Strous*

author keywords: metagenomics; amplicon sequencing; bioinformatics; microbial ecology; microbiome
Source: ORCID
Added: February 3, 2019

2017 article

Fast and simple analysis of MiSeq amplicon sequencing data with MetaAmp

Dong, X., Kleiner, M., Sharp, C. E., Thorson, E., Li, C., Liu, D., & Strous, M. (2017, April). (Vol. 4). Vol. 4.

By: X. Dong*, M. Kleiner*, C. Sharp*, E. Thorson*, C. Li*, D. Liu*, M. Strous*

Source: ORCID
Added: February 3, 2019

2017 journal article

Genome sequence of the sulfur-oxidizing Bathymodiolus thermophilus gill endosymbiont.

Standards in Genomic Sciences.

author keywords: Uncultured endosymbiont; Hydrothermal vents; Marine invertebrate symbiosis; Thiotrophy; Autotrophy
Source: ORCID
Added: February 3, 2019

2017 journal article

Metabolic and physiological interdependencies in the Bathymodiolus azoricus symbiosis

The ISME Journal, 11(2), 463–477.

MeSH headings : Animals; Biosynthetic Pathways; Gammaproteobacteria / physiology; Gills / microbiology; Hydrothermal Vents; Methane / metabolism; Mytilidae / genetics; Mytilidae / microbiology; Oxidation-Reduction; Proteome; Species Specificity; Sulfur / metabolism; Symbiosis
Source: ORCID
Added: February 3, 2019

2017 dataset

Metaproteomics of phototrophic biomats from two soda lakes in the Canadian Rocky Mountains

http://www.ebi.ac.uk/pride/archive/projects/PXD006343

Source: ORCID
Added: February 3, 2019

2017 journal article

Normalization of metatranscriptomic and metaproteomic data for differential gene expression analyses: The importance of accounting for organism abundance

PeerJ Preprints, 5, e2846v1.

By: M. Kleiner n

Sources: NC State University Libraries, ORCID
Added: February 7, 2019

2017 article

Normalization of metatranscriptomic and metaproteomic data for differential gene expression analyses: The importance of accounting for organism abundance

Kleiner, M. (2017, March 2). (Vol. 3). Vol. 3.

By: M. Kleiner n

Source: ORCID
Added: August 9, 2021

2017 dataset

Quantification of mock microbial communities with metagenomes, 16S rRNA gene amplicons and metaproteomics

http://www.ebi.ac.uk/pride/archive/projects/PXD006118

Source: ORCID
Added: February 3, 2019

2017 dataset

Re-analysis of an ultra-deep and quantitative saliva proteome

http://www.ebi.ac.uk/pride/archive/projects/PXD006366

Source: ORCID
Added: February 3, 2019

2017 journal article

Short-chain alkanes fuel mussels and sponge Cycloclasticus symbionts from deep-sea gas and oil seeps

Nature Microbiology, 2, 17093.

MeSH headings : Alkanes / metabolism; Animals; Bivalvia / microbiology; Carbon / metabolism; Energy Metabolism; Gene Expression Profiling; Genomics; Gulf of Mexico; Piscirickettsiaceae / genetics; Piscirickettsiaceae / metabolism; Piscirickettsiaceae / physiology; Porifera / microbiology; Symbiosis
Sources: ORCID, Web Of Science
Added: February 3, 2019

2016 dataset

Bathymodiolus azoricus host-symbiont proteomics

http://www.ebi.ac.uk/pride/archive/projects/PXD004061

Source: ORCID
Added: February 3, 2019

2016 journal article

Chemosynthetic sulphur-oxidizing symbionts of marine invertebrate animals are capable of nitrogen fixation

Nature Microbiology, 2, 16195.

By: J. Petersen*, A. Kemper*, H. Gruber-Vodicka*, U. Cardini*, M. Geest*, M. Kleiner*, S. Bulgheresi*, M. Mußmann* ...

MeSH headings : Animals; Aquatic Organisms / microbiology; Bacteria / enzymology; Bacteria / genetics; Bivalvia / microbiology; Chromadorea / microbiology; Gene Expression Profiling; Nitrogen Fixation; Nitrogenase / genetics; Proteome / analysis; Sequence Analysis, DNA; Symbiosis
Sources: ORCID, Web Of Science
Added: February 3, 2019

2016 journal article

Closely coupled evolutionary history of ecto- and endosymbionts from two distantly-related animal phyla

Molecular Ecology, 25(13), 3203–3223.

By: J. Zimmermann*, C. Wentrup*, M. Sadowski*, A. Blazejak*, H. Gruber-Vodicka*, M. Kleiner*, J. Ott*, B. Cronholm* ...

author keywords: cospeciation; gutless oligochaetes; nematodes; Phallodrilinae; Stilbonematinae; Thiosymbion
MeSH headings : Animals; Annelida / microbiology; Biological Evolution; DNA, Bacterial / genetics; Gammaproteobacteria / genetics; Genetic Markers; Nematoda / microbiology; Oceans and Seas; Phylogeny; RNA, Ribosomal, 16S / genetics; Sequence Analysis, DNA; Symbiosis
Sources: ORCID, Web Of Science
Added: February 3, 2019

2016 dataset

Differential proteomics of Lenisia limosa (Breviatea) and its epibiotic Arcobacter symbiont

http://www.ebi.ac.uk/pride/archive/projects/PXD003275

Source: ORCID
Added: February 3, 2019

2016 journal article

Environmental Breviatea harbor mutualistic Arcobacter epibionts

Nature, 534(7606), 254–258.

By: E. Hamann*, H. Gruber-Vodicka*, M. Kleiner*, H. Tegetmeyer*, D. Riedel*, S. Littmann*, J. Chen*, J. Milucka* ...

MeSH headings : Arcobacter / genetics; Arcobacter / physiology; Eukaryota / enzymology; Eukaryota / genetics; Eukaryota / physiology; Genetic Fitness; Hydrogen / metabolism; Hydrogenase / genetics; Hydrogenase / metabolism; NADP / metabolism; Proteomics; Symbiosis / genetics; Transcriptome; Virulence / genetics; Virulence Factors / genetics; Virulence Factors / metabolism
Sources: ORCID, Web Of Science
Added: February 3, 2019

2016 journal article

MiL-FISH: Multi-labelled oligonucleotides for fluorescence in situ hybridisation improve visualization of bacterial cells

Applied and Environmental Microbiology, 82(1), 62–70.

By: M. Schimak*, M. Kleiner*, S. Wetzel*, M. Liebeke*, N. Dubilier* & B. Fuchs*

MeSH headings : Bacteria / cytology; Bacteria / genetics; Flow Cytometry; In Situ Hybridization, Fluorescence / methods; Oligonucleotide Probes / chemistry; Oligonucleotide Probes / genetics; Staining and Labeling
Sources: ORCID, Web Of Science
Added: February 3, 2019

2016 dataset

Proteomics of Candidatus Thiodiazotropha endoloripes, the chemosynthetic symbiont of the lucinid clam Loripes lucinalis from the Bay of Fetovaia

http://www.ebi.ac.uk/pride/archive/projects/PXD004536

Source: ORCID
Added: February 3, 2019

2016 dataset

Proteomics of Cycloclasticus endosymbiont of deep-sea mussel Bathymodiolus heckerae from Campeche Knolls, southern Gulf of Mexico

http://www.ebi.ac.uk/pride/archive/projects/PXD005351

Source: ORCID
Added: February 3, 2019

2016 journal article

Spontaneous Reversions of an Evolutionary Trait Loss Reveal Regulators of a Small RNA That Controls Multicellular Development in Myxobacteria

Journal of Bacteriology, 198(23), 3142–3151.

By: Y. Yu*, M. Kleiner* & G. Velicer*

Ed(s): C. Mullineaux

MeSH headings : Bacterial Proteins / genetics; Bacterial Proteins / metabolism; Biological Evolution; Gene Expression Regulation, Bacterial; Gene Expression Regulation, Developmental; Histidine Kinase / genetics; Histidine Kinase / metabolism; Mutation; Myxococcus xanthus / genetics; Myxococcus xanthus / growth & development; Myxococcus xanthus / metabolism; RNA, Bacterial / genetics; RNA, Bacterial / metabolism
Source: ORCID
Added: February 3, 2019

2016 journal article

Transcriptomic and proteomic insights into innate immunity and adaptations to a symbiotic lifestyle in the gutless marine worm Olavius algarvensis

BMC Genomics, 17(1).

By: J. Wippler*, M. Kleiner*, C. Lott*, A. Gruhl*, P. Abraham*, R. Giannone*, J. Young*, R. Hettich*, N. Dubilier*

author keywords: RNA-Seq; Annelida; Oligochaeta; Phallodrilinae; PGRP; FREP; SRCR; Respiratory pigment; Carbon monoxide; Immunology; Chemosynthetic symbiosis
MeSH headings : Adaptation, Biological / genetics; Adaptation, Biological / immunology; Amino Acid Sequence; Animals; Biomarkers; Computational Biology / methods; Gene Expression Profiling / methods; High-Throughput Nucleotide Sequencing; Immunity, Innate / genetics; Microbiota; Models, Biological; Oligochaeta / genetics; Oligochaeta / immunology; Oligochaeta / metabolism; Proteome; Proteomics / methods; Receptors, Pattern Recognition / metabolism; Symbiosis / genetics; Symbiosis / immunology; Transcriptome
Source: ORCID
Added: February 3, 2019

2016 dataset

Transcriptomic and proteomic insights into innate immunity and adaptations to a symbiotic lifestyle in the gutless marine worm Olavius algarvensis

https://massive.ucsd.edu/ProteoSAFe/dataset.jsp?task=77bbe652de0b4439b9a9e89016f99c93

Source: ORCID
Added: February 3, 2019

2015 journal article

Abundant toxin-related genes in the genomes of beneficial symbionts from deep-sea hydrothermal vent mussels

ELife, 4, e07966.

By: L. Sayavedra*, M. Kleiner*, R. Ponnudurai*, S. Wetzel*, E. Pelletier*, V. Barbe*, N. Satoh*, E. Shoguchi* ...

MeSH headings : Animals; Aquatic Organisms / microbiology; Bacteria / genetics; Bacteria / growth & development; Bacterial Toxins / biosynthesis; Bacterial Toxins / genetics; Bivalvia / microbiology; DNA, Bacterial / chemistry; DNA, Bacterial / genetics; Gene Expression Profiling; Genome, Bacterial; Hydrothermal Vents; Molecular Sequence Data; Proteome / analysis; Seawater; Sequence Analysis, DNA; Symbiosis
Sources: ORCID, Web Of Science
Added: February 3, 2019

2015 journal article

Evaluation of methods to purify virus-like particles for metagenomic sequencing of intestinal viromes

BMC Genomics, 16(7), 7.

By: M. Kleiner*, L. Hooper* & B. Duerkop*

author keywords: Virus metagenomics; Viral metagenomes; Virus-like particles; Microbiome; Bacteriophage; CsCl density gradient
MeSH headings : Animals; Bacteriophages / genetics; Bacteriophages / isolation & purification; Contig Mapping; DNA, Viral / analysis; DNA, Viral / isolation & purification; Feces / virology; Genetic Techniques / standards; Intestines / virology; Metagenome; Metagenomics / methods; Mice; Mice, Inbred C57BL; Reproducibility of Results; Sequence Analysis, DNA
Sources: ORCID, Web Of Science
Added: February 3, 2019

2015 journal article

Use of carbon monoxide and hydrogen by a bacteria-animal symbiosis from seagrass sediments

Environmental Microbiology, 17(12), 5023–5035.

By: M. Kleiner*, C. Wentrup*, T. Holler*, G. Lavik*, J. Harder*, C. Lott*, S. Littmann*, M. Kuypers*, N. Dubilier*

MeSH headings : Animals; Bacteria / metabolism; Carbon Dioxide / metabolism; Carbon Monoxide / metabolism; Energy Metabolism; Geologic Sediments / microbiology; Hydrogen / metabolism; Mediterranean Region; Oligochaeta / microbiology; Oxidation-Reduction; Seawater / microbiology; Spectrometry, Mass, Secondary Ion; Sulfur Compounds / metabolism; Symbiosis
Sources: ORCID, Web Of Science
Added: February 3, 2019

2014 journal article

Identification and activity of acetate-assimilating bacteria in diffuse fluids venting from deep-sea hydrothermal systems

FEMS Microbiology Ecology, 90(3), 731–746.

author keywords: Epsilonproteobacteria; Gammaproteobacteria; heterotrophy; 16S rRNA gene; nanoSIMS; stable isotopes
MeSH headings : Acetates / metabolism; Aquatic Organisms / genetics; Base Sequence; Epsilonproteobacteria / classification; Epsilonproteobacteria / genetics; Epsilonproteobacteria / metabolism; Gammaproteobacteria / classification; Gammaproteobacteria / genetics; Gammaproteobacteria / metabolism; Heterotrophic Processes; Hydrothermal Vents / microbiology; In Situ Hybridization, Fluorescence; Microbial Consortia / genetics; Molecular Sequence Data; Phylogeny; RNA, Ribosomal, 16S / genetics; Seawater / microbiology; Sequence Analysis, DNA
Sources: ORCID, Web Of Science
Added: February 3, 2019

2013 journal article

Metaproteomics Reveals Abundant Transposase Expression in Mutualistic Endosymbionts

Mbio, 4(3).

By: M. Kleiner*, J. Young*, M. Shah*, N. VerBerkmoes* & N. Dubilier*

MeSH headings : Animals; Bacteria / enzymology; Bacterial Physiological Phenomena; Bacterial Proteins / biosynthesis; Gene Expression; Metagenomics / methods; Oligochaeta / microbiology; Proteome / analysis; Proteomics / methods; Symbiosis; Transposases / biosynthesis
Source: ORCID
Added: February 3, 2019

2012 journal article

Convergent and divergent evolution of metabolism in sulfur-oxidizing symbionts and the role of horizontal gene transfer

Current Opinion in Microbiology, 15(5), 621–631.

By: M. Kleiner, J. Petersen & N. Dubilier

Source: ORCID
Added: February 3, 2019

2012 journal article

Convergent and divergent evolution of metabolism in sulfur-oxidizing symbionts and the role of horizontal gene transfer

Current Opinion in Microbiology, 15(5), 621–631.

By: M. Kleiner*, J. Petersen* & N. Dubilier*

MeSH headings : Animals; Aquatic Organisms / microbiology; Aquatic Organisms / physiology; Bacteria / genetics; Bacteria / metabolism; Bacterial Physiological Phenomena; Evolution, Molecular; Gene Transfer, Horizontal; Genetic Variation; Genomics / methods; Invertebrates / microbiology; Invertebrates / physiology; Metabolic Networks and Pathways / genetics; Oxidation-Reduction; Phylogeny; RNA, Ribosomal, 16S / genetics; Sulfur Compounds / metabolism; Symbiosis
Sources: Crossref, ORCID
Added: September 12, 2020

2012 journal article

Metaproteomics of a gutless marine worm and its symbiotic microbial community reveal unusual pathways for carbon and energy use

Proceedings of the National Academy of Sciences of the United States of America, 109(19), E1173–E1182.

By: M. Kleiner*, C. Wentrup*, C. Lott*, H. Teeling*, S. Wetzel*, J. Young, Y. Chang, M. Shah ...

author keywords: 3-hydroxypropionate bi-cycle; Calvin cycle; proton-translocating pyrophosphatase; pyrophosphate dependent phosphofructokinase; metagenomics
MeSH headings : Animals; Bacteria / growth & development; Bacteria / metabolism; Carbon / metabolism; Carbon Cycle; Chromatography, High Pressure Liquid; Ecosystem; Electrophoresis, Polyacrylamide Gel; Energy Metabolism; Host-Pathogen Interactions; Hydrogen / metabolism; Mass Spectrometry; Metabolic Networks and Pathways; Metabolomics / methods; Oligochaeta / metabolism; Oligochaeta / microbiology; Proteomics / methods; Seawater; Symbiosis
Source: ORCID
Added: February 3, 2019

2011 journal article

Status quo in physiological proteomics of the uncultured Riftia pachyptila endosymbiont

Proteomics, 11(15), 3106–3117.

By: S. Markert*, A. Gardebrecht*, H. Felbeck*, S. Sievert*, J. Klose*, D. Becher*, D. Albrecht*, A. Thurmer ...

author keywords: Carbon fixation; Endosymbionts; Metaproteome; Microbiology; Riftia pachyptila; Sulfide oxidation
MeSH headings : Animals; Bacteria / chemistry; Bacteria / metabolism; Bacterial Physiological Phenomena; Bacterial Proteins / analysis; Bacterial Proteins / chemistry; Bacterial Proteins / metabolism; Carbon / metabolism; Carbon Cycle / physiology; Electrophoresis, Gel, Two-Dimensional; Membrane Proteins / analysis; Membrane Proteins / chemistry; Membrane Proteins / metabolism; Membrane Transport Proteins / analysis; Membrane Transport Proteins / chemistry; Membrane Transport Proteins / metabolism; Metabolic Networks and Pathways; Nitrogen / metabolism; Polychaeta / microbiology; Polychaeta / physiology; Proteomics; Sulfur / metabolism; Symbiosis / physiology
Source: ORCID
Added: February 3, 2019

2011 article

The Olavius algarvensis Metagenome Revisited: Lessons Learned from the Analysis of the Low-Diversity Microbial Consortium of a Gutless Marine Worm

Kleiner, M., Woyke, T., Ruehland, C., & Dubilier, N. (2011, November 10). Handbook of Molecular Microbial Ecology II, pp. 319–333.

By: M. Kleiner*, T. Woyke*, C. Ruehland* & N. Dubilier*

Source: ORCID
Added: February 3, 2019

Employment

Updated: January 29th, 2020 06:21

2017 - present

North Carolina State University Raleigh, NC, US
Plant and Microbial Biology