My research utilizes genomics approaches to enhance forest tree genetics and ultimately prepare our forests and tree species for current and future challenges presented by an ever-changing climate. Specifically, I am an expert in deciphering forest tree-insect/pathogen interactions from the ecological to functional genomic level. more

Works (28)

Updated: March 4th, 2026 19:05

2025 article

A Protoplast System for CRISPR-Cas Ribonucleoprotein Delivery in Pinus taeda and Abies fraseri

Marques, B. M., Sulis, D. B., Suarez, B., Yang, C., Cofre-Vega, C., Thomas, R. D., … Wang, J. P. (2025, March 22). Plants, Vol. 14.

By: B. Marques n, D. Sulis n, B. Suarez n, C. Yang n, C. Cofre-Vega n, R. Thomas n, J. Whitehill n, R. Whetten n, R. Barrangou n, J. Wang n

Contributors: B. Marques n, D. Sulis n, B. Suarez n, C. Yang n, C. Cofre-Vega n, J. Wang n, R. Barrangou n, J. Whitehill n, R. Whetten n, R. Thomas n

author keywords: CRISPR; genome editing; protoplasts; conifers
topics (OpenAlex): CRISPR and Genetic Engineering; Insect symbiosis and bacterial influences; Plant Virus Research Studies
Sources: Web Of Science, NC State University Libraries, ORCID
Added: March 27, 2025

2025 article

Distinct terpene metabolite blends serve as core drivers of consumer aroma preferences in fir Christmas tree species

Baldwin, W. C., Chiang, A., Wyatt, G., Nau, K., Chastagner, G., Landgren, C., … Whitehill, J. G. A. (2025, May 27). Scientific Reports, Vol. 15.

By: W. Baldwin n, A. Chiang n, G. Wyatt*, K. Nau*, G. Chastagner*, C. Landgren*, J. Kowalski*, C. Sims*, P. Zerbe*, J. Whitehill*

author keywords: Aroma; cis-abienol; Consumer aroma panels; GC-MS; Terpenes
MeSH headings : Humans; Terpenes / metabolism; Terpenes / analysis; Consumer Behavior; Odorants / analysis; Abies / metabolism; Abies / chemistry; Gas Chromatography-Mass Spectrometry; Trees / metabolism; Trees / chemistry; Male; Female; Adult; Sesquiterpenes; Middle Aged
topics (OpenAlex): Plant biochemistry and biosynthesis; Plant and animal studies; Essential Oils and Antimicrobial Activity
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: June 9, 2025

2025 article

Evaluating the post-harvest survival and emergence of elongate hemlock scale from Fraser fir Christmas trees

Manz, D., Oten, K. L. F., Sorenson, C. E., Whitehill, J. G. A., & Jetton, R. M. (2025, July 1). (K. Dodds, Ed.). Journal of Economic Entomology, Vol. 7.

By: D. Manz n, K. Oten n, C. Sorenson n, J. Whitehill n & R. Jetton n

Ed(s): K. Dodds

author keywords: forest health; invasive species; armored scale
topics (OpenAlex): Research on scale insects; Hemiptera Insect Studies; Insect-Plant Interactions and Control
Sources: Web Of Science, NC State University Libraries, ORCID
Added: June 20, 2025

2025 article

Potential for Elite Veneer Poplar on Marginal Phytophthora spp.–Infected Christmas Tree Lands

Kohlway, W. H., Cothron, C. P., Ghezehei, S., Chiang, A., Nichols, E. G., & Whitehill, J. (2025, March 17). Plant Disease, Vol. 10.

By: W. Kohlway n, C. Cothron n, S. Ghezehei n, A. Chiang n, E. Nichols n & J. Whitehill n

author keywords: disease management; marginal lands; oomycetes; <italic>Phytophthora</italic>; plant resistance; poplar; short-rotation woody crops; trees
topics (OpenAlex): Plant Pathogens and Resistance; Bioenergy crop production and management; Rangeland and Wildlife Management
Sources: ORCID, Web Of Science, NC State University Libraries
Added: October 1, 2025

2023 article

A phoenix glimmers within the ashes: generalized defensive traits suggest hope for plants under attack by invasive pests

Johnson, T. D., & Whitehill, J. G. A. (2023, August 26). New Phytologist, Vol. 8.

By: T. Johnson* & J. Whitehill n

author keywords: ash dieback; cross-resistance; emerald ash borer; Fraxinus; plant defense strategies; plant-pathogen interaction
topics (OpenAlex): Plant and animal studies; Forest Insect Ecology and Management; Insect-Plant Interactions and Control
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 25, 2023

2023 article

Transcriptome features of stone cell development in weevil‐resistant and susceptible Sitka spruce

Whitehill, J. G. A., Yuen, M. M. S., Chiang, A., Ritland, C. E., & Bohlmann, J. (2023, July 4). New Phytologist, Vol. 7.

By: J. Whitehill n, M. Yuen*, A. Chiang n, C. Ritland* & J. Bohlmann*

author keywords: conifer; laser-capture microdissection; lignin; plant-insect interaction; plant resistance; secondary cell wall; spruce; weevil
topics (OpenAlex): Forest Insect Ecology and Management; Plant Pathogens and Fungal Diseases; Plant and animal studies
TL;DR: To learn more about molecular mechanisms of stone cell formation in conifers, laser microdissection and RNA sequencing and light, immunohistochemical, and fluorescence microscopy were used to develop cell-type-specific transcriptomes of developing stone cells from R and S trees. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 7, 2023

2022 article

Spruce giga‐genomes: structurally similar yet distinctive with differentially expanding gene families and rapidly evolving genes

Gagalova, K. K., Warren, R. L., Coombe, L., Wong, J., Nip, K. M., Yuen, M. M. S., … Birol, I. (2022, July 5). The Plant Journal.

author keywords: conifers; divergent adaptive evolution; genetic map; genome sequence; non-synonymous SNPs; phylogeny; Picea species; positive selection; super-scaffolds
MeSH headings : Expressed Sequence Tags; Genome, Plant / genetics; Multigene Family / genetics; Phylogeny; Picea / genetics; Tracheophyta / genetics
topics (OpenAlex): Genomics and Phylogenetic Studies; Plant Molecular Biology Research; Genetic diversity and population structure
TL;DR: Improved and more contiguous spruce giga-genome sequences should strengthen the understanding of conifer genome structure and evolution, as their comparison offers clues into the genetic basis of adaptation and ecology of conifers at the genomic level. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: July 17, 2022

2022 article

The genome of the forest insect pest Pissodes strobi reveals genome expansion and evidence of a Wolbachia endosymbiont

Gagalova, K. K., Whitehill, J. G. A., Culibrk, L., Lin, D., Lévesque-Tremblay, V., Keeling, C. I., … Jones, S. J. M. (2022, February 16). (S. Smith, Ed.). G3 Genes Genomes Genetics, Vol. 12.

By: K. Gagalova*, J. Whitehill n, L. Culibrk*, D. Lin*, V. Lévesque-Tremblay*, C. Keeling*, L. Coombe*, M. Yuen* ...

Ed(s): S. Smith

author keywords: Curculionidae; Pissodes strobi; spruce weevil; forest pest; genome size; transposable elements; Wolbachia; endosymbiont
MeSH headings : Animals; Forests; Insecta; Picea / genetics; Weevils / genetics; Wolbachia / genetics
topics (OpenAlex): Insect symbiosis and bacterial influences; Phytoplasmas and Hemiptera pathogens; Insect-Plant Interactions and Control
TL;DR: A substantial expansion of the weevil nuclear genome is reported, relative to other Curculionidae species, possibly driven by an abundance of class II DNA transposons. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: February 17, 2022

2021 article

Constitutive and insect‐induced transcriptomes of weevil‐resistant and susceptible Sitka spruce

Whitehill, J. G. A., Yuen, M. M. S., & Bohlmann, J. (2021, June 1). Plant-Environment Interactions.

By: J. Whitehill n, M. Yuen* & J. Bohlmann*

topics (OpenAlex): Forest Insect Ecology and Management; Forest Ecology and Biodiversity Studies; Insect-Plant Interactions and Control
TL;DR: A statistical model for the analysis of RNA‐seq data from treatment experiments with a 2 × 3 factorial design was developed to differentiate insect‐induced responses from the effects of mechanical damage, suggesting a potential microbiome role in this conifer‐insect interaction. (via Semantic Scholar)
Source: ORCID
Added: June 10, 2021

2020 article

Gymnosperm glandular trichomes: expanded dimensions of the conifer terpenoid defense system

Celedon, J. M., Whitehill, J. G. A., Madilao, L. L., & Bohlmann, J. (2020, July 27). Scientific Reports, Vol. 10.

By: J. Celedon*, J. Whitehill*, L. Madilao* & J. Bohlmann*

Contributors: J. Celedon*, J. Whitehill*, L. Madilao* & J. Bohlmann*

MeSH headings : Animals; Cycadopsida / anatomy & histology; Cycadopsida / chemistry; Cycadopsida / growth & development; Cycadopsida / immunology; Insecta / physiology; Terpenes / chemistry; Terpenes / immunology; Tracheophyta / anatomy & histology; Tracheophyta / chemistry; Tracheophyta / growth & development; Tracheophyta / immunology; Trichomes / anatomy & histology; Trichomes / chemistry; Trichomes / growth & development; Trichomes / immunology
topics (OpenAlex): Plant biochemistry and biosynthesis; Plant and animal studies; Forest Insect Ecology and Management
TL;DR: Spruce GTs may provide an early, terpene-based chemical defense system at a developmental stage when young shoots are particularly vulnerable to foliage and shoot feeding insects, and before the resin duct system characteristic of conifers has fully developed. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 29, 2020

2019 article

A molecular and genomic reference system for conifer defence against insects

Whitehill, J. G. A., & Bohlmann, J. (2019, May 1). Plant Cell & Environment, Vol. 42, pp. 2844–2859.

By: J. Whitehill* & J. Bohlmann*

Contributors: J. Whitehill* & J. Bohlmann*

author keywords: adaptation; bark beetle; chemical defence and physical defence; forest health; Pissodes strobi; plant insect interaction; plant resistance; stone cells (sclereids); terpene oleoresin; white pine weevil or spruce weevil
MeSH headings : Animals; Cytochrome P-450 Enzyme System; Genomics; Host-Parasite Interactions / immunology; Insecta; Microbiota; Oviposition; Phenotype; Pinus; Plant Diseases / immunology; Plant Diseases / parasitology; Proteome; Terpenes / pharmacology; Tracheophyta / immunology; Transcriptome; Weevils
topics (OpenAlex): Forest Insect Ecology and Management; Plant biochemistry and biosynthesis; Insect behavior and control techniques
TL;DR: Conifer defences that disrupt the weevil life cycle and mechanisms by which trees resist weevil attack are reviewed, highlighting molecular and genomic aspects and a possible role for theWeevil microbiome. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

2018 article

Functions of stone cells and oleoresin terpenes in the conifer defense syndrome

Whitehill, J. G. A., Yuen, M. M. S., Henderson, H., Madilao, L., Kshatriya, K., Bryan, J., … Bohlmann, J. (2018, September 16). New Phytologist, Vol. 221, pp. 1503–1517.

By: J. Whitehill*, M. Yuen*, H. Henderson*, L. Madilao*, K. Kshatriya*, J. Bryan*, B. Jaquish*, J. Bohlmann*

Contributors: J. Whitehill*, M. Yuen*, H. Henderson*, L. Madilao*, K. Kshatriya*, J. Bryan*, B. Jaquish*, J. Bohlmann*

author keywords: bark beetles; forest health; Picea sitchensis; Pissodes strobi; plant resistance; plant-insect interaction; sclereid; terpenoid
MeSH headings : Animals; Feeding Behavior; Gastrointestinal Tract / physiology; Gene Expression Regulation, Plant; Larva / physiology; Oviposition; Plant Extracts / metabolism; Terpenes / metabolism; Tracheophyta / cytology; Tracheophyta / genetics; Tracheophyta / metabolism; Transcriptome / genetics; Trees / genetics; Trees / physiology; Weevils / physiology
topics (OpenAlex): Forest Insect Ecology and Management; Insect-Plant Interactions and Control; Plant and animal studies
TL;DR: The results support a role for both SC and oleoresin terpenes and possible synergies between these traits in the defense syndrome of weevil-resistant Sitka spruce. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2018 article

Histology of resin vesicles and oleoresin terpene composition of conifer seeds

Kshatriya, K., Whitehill, J. G. A., Madilao, L., Henderson, H., Kermode, A., Kolotelo, D., & Bohlmann, J. (2018, June 26). Canadian Journal of Forest Research, Vol. 48, pp. 1073–1084.

By: K. Kshatriya*, J. Whitehill*, L. Madilao*, H. Henderson*, A. Kermode*, D. Kolotelo*, J. Bohlmann*

Contributors: K. Kshatriya*, J. Whitehill*, L. Madilao*, H. Henderson*, A. Kermode*, D. Kolotelo*, J. Bohlmann*

author keywords: monoterpene; diterpene; oleoresin; conifer; seed coat
topics (OpenAlex): Plant and animal studies; Plant biochemistry and biosynthesis; Forest Insect Ecology and Management
TL;DR: The described seed terpene profiles of the nine species will serve as a foundation for future studies into the function of seed terpenes and resin vesicles in the seed coat. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2016 article

Function of Sitka spruce stone cells as a physical defence against white pine weevil

Whitehill, J. G. A., Henderson, H., Strong, W., Jaquish, B., & Bohlmann, J. (2016, August 2). Plant Cell & Environment, Vol. 11, pp. 2545–2556.

By: J. Whitehill*, H. Henderson*, W. Strong*, B. Jaquish* & J. Bohlmann*

Contributors: J. Whitehill*, H. Henderson*, W. Strong*, B. Jaquish* & J. Bohlmann*

author keywords: conifer defence; plant insect interaction; plant resistance; sclereid
MeSH headings : Animals; Feeding Behavior; Host-Pathogen Interactions; Larva / growth & development; Larva / physiology; Picea / cytology; Picea / physiology; Stress, Physiological; Weevils / physiology
topics (OpenAlex): Forest Insect Ecology and Management; Entomological Studies and Ecology; Insect-Plant Interactions and Control; Plant and animal studies
TL;DR: The results suggest that stone cells affect weevil establishment and development by forming a physical feeding barrier against neonate larvae at the site of oviposition, and by reducing access to nutrients in the cortex of resistant trees, which contain an abundance of stone cells in place of a more nutrient rich tissue in susceptible trees. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2015 article

Histology and cell wall biochemistry of stone cells in the physical defence of conifers against insects

Whitehill, J. G. A., Henderson, H., Schuetz, M., Skyba, O., Yuen, M. M. S., King, J., … Bohlmann, J. (2015, October 17). Plant Cell & Environment, Vol. 8, pp. 1646–1661.

By: J. Whitehill*, H. Henderson*, M. Schuetz*, O. Skyba*, M. Yuen*, J. King*, A. Samuels*, S. Mansfield*, J. Bohlmann*

Contributors: J. Whitehill*, H. Henderson*, M. Schuetz*, O. Skyba*, M. Yuen*, J. King*, A. Samuels*, S. Mansfield*, J. Bohlmann*

author keywords: bark beetle; plant insect interaction; plant resistance; secondary cell wall; spruce; lignin; fluorescent-tagged coniferyl alcohol
MeSH headings : Animals; Carbohydrate Metabolism; Cell Wall / metabolism; Genotype; Herbivory; Lignin / biosynthesis; Phenotype; Picea / genetics; Picea / metabolism; Picea / ultrastructure; Weevils
topics (OpenAlex): Forest Insect Ecology and Management; Plant Pathogens and Fungal Diseases; Plant biochemistry and biosynthesis
TL;DR: Histological, biochemical and molecular differences in the stone cell phenotype of weevil resistant (R) or susceptible (S) Sitka spruce genotypes are identified and fortification of shoot tips in R trees is an effective strategy against insect feeding. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2015 article

Progress and gaps in understanding mechanisms of ash tree resistance to emerald ash borer, a model for wood‐boring insects that kill angiosperms

Villari, C., Herms, D. A., Whitehill, J. G. A., Cipollini, D., & Bonello, P. (2015, August 13). New Phytologist, Vol. 1, pp. 63–79.

By: C. Villari*, D. Herms*, J. Whitehill*, D. Cipollini* & P. Bonello*

Contributors: C. Villari*, D. Herms*, J. Whitehill*, D. Cipollini* & P. Bonello*

author keywords: Agrilus planipennis; constitutive defense; emerald ash borer; Fraxinus; host defense mechanisms; induced defense; plant-insect interactions; wood-borers
MeSH headings : Acetates / pharmacology; Animals; Anti-Infective Agents / metabolism; Antibiosis; Coleoptera / physiology; Cyclopentanes / pharmacology; Fraxinus / immunology; Fraxinus / parasitology; Glucosides / metabolism; Larva; Lignin / metabolism; Magnoliopsida / immunology; Magnoliopsida / parasitology; Models, Biological; Oviposition; Oxylipins / pharmacology; Phenols / metabolism; Plant Growth Regulators / pharmacology; Species Specificity; Trypsin Inhibitors / metabolism; Wood
topics (OpenAlex): Forest Insect Ecology and Management; Insect-Plant Interactions and Control; Insect Pest Control Strategies
TL;DR: The finding that Manchurian ash is more resistant than evolutionarily naïve North American and European congeners to EAB suggests that these inherently susceptible species possess latent defenses that are not induced naturally by larval colonization, perhaps because they fail to recognize larval cues or respond quickly enough. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

2014 article

Decreased emergence of emerald ash borer from ash treated with methyl jasmonate is associated with induction of general defense traits and the toxic phenolic compound verbascoside

Whitehill, J. G. A., Rigsby, C., Cipollini, D., Herms, D. A., & Bonello, P. (2014, September 17). Oecologia, Vol. 12, pp. 1047–1059.

By: J. Whitehill*, C. Rigsby*, D. Cipollini*, D. Herms* & P. Bonello*

Contributors: J. Whitehill*, C. Rigsby*, D. Cipollini*, D. Herms* & P. Bonello*

author keywords: Agrilus planipennis; Biological invasions; Fraxinus; Induced resistance; Plant-herbivore interactions
MeSH headings : Acetates / pharmacology; Adaptation, Physiological; Animals; Coleoptera / drug effects; Coleoptera / growth & development; Cyclopentanes / pharmacology; Disease Resistance / drug effects; Fraxinus / drug effects; Fraxinus / metabolism; Fraxinus / physiology; Glucosides / metabolism; Glucosides / pharmacology; Insecticides / pharmacology; Larva / drug effects; Larva / growth & development; Lignin / metabolism; Lignin / pharmacology; North America; Oxylipins / pharmacology; Phenols / metabolism; Phenols / pharmacology; Plant Growth Regulators / pharmacology; Species Specificity; Trypsin Inhibitors / metabolism; Trypsin Inhibitors / pharmacology
topics (OpenAlex): Forest Insect Ecology and Management; Insect-Plant Interactions and Control; Insect Pest Control Strategies
TL;DR: It is concluded that the application of MeJA prior to EAB attack has the ability to enhance resistance of susceptible ash trees by inducing endogenous plant defenses, and evidence that induction of verbascoside is a mechanism of resistance to Eab is reported. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

2013 article

Effects of water availability on emerald ash borer larval performance and phloem phenolics of Manchurian and black ash

CHAKRABORTY, S. O. U. R. A. V., WHITEHILL, J. U. S. T. I. N. G. A., HILL, A. M. Y. L., OPIYO, S. T. E. P. H. E. N. O., CIPOLLINI, D. O. N., HERMS, D. A. N. I. E. L. A., & BONELLO, P. I. E. R. L. U. I. G. I. (2013, October 14). Plant Cell & Environment, Vol. 4, pp. 1009–1021.

By: S. Chakraborty*, J. Whitehill*, A. Hill*, S. Opiyo*, D. Cipollini*, D. Herms*, P. Bonello*

Contributors: S. Chakraborty*, J. Whitehill*, A. Hill*, S. Opiyo*, D. Cipollini*, D. Herms*, P. Bonello*

author keywords: pinoresinol; drought stress; Agrilus planipennis; secondary metabolites; quantitation; induced resistance; Fraxinus spp.; phenolics
MeSH headings : Analysis of Variance; Animals; Chromatography, High Pressure Liquid; Chromatography, Liquid; Coleoptera / physiology; Fraxinus / parasitology; Fraxinus / physiology; Furans / metabolism; Larva / physiology; Lignans / metabolism; Linear Models; Mass Spectrometry; Multivariate Analysis; Phenols / metabolism; Phloem / metabolism; Plant Leaves / physiology; Principal Component Analysis; Statistics, Nonparametric; Water / physiology
topics (OpenAlex): Forest Insect Ecology and Management; Plant and animal studies; Insect-Plant Interactions and Control
TL;DR: The higher accumulation of pinoresinol A in Manchurian ash after attack may help explain the resistance of this species to EAB, but none of the responses measured here could explain increased larval performance in trees subjected to low water availability. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: ORCID
Added: August 24, 2020

2013 article

Reserves Accumulated in Non-Photosynthetic Organs during the Previous Growing Season Drive Plant Defenses and Growth in Aspen in the Subsequent Growing Season

Najar, A., Landhäusser, S. M., Whitehill, J. G. A., Bonello, P., & Erbilgin, N. (2013, December 23). Journal of Chemical Ecology, Vol. 1, pp. 21–30.

By: A. Najar*, S. Landhäusser*, J. Whitehill*, P. Bonello* & N. Erbilgin*

Contributors: A. Najar*, S. Landhäusser*, J. Whitehill*, P. Bonello* & N. Erbilgin*

author keywords: Aspen; Constitutive and induced defenses; Non-structural carbohydrates; Nitrogen; Phenolic glycosides
MeSH headings : Carbohydrate Metabolism; Herbivory / drug effects; Nitrogen / metabolism; Phenol / metabolism; Photosynthesis; Plant Leaves / metabolism; Plant Leaves / physiology; Populus / growth & development; Populus / metabolism; Populus / physiology; Seasons
topics (OpenAlex): Seedling growth and survival studies; Plant Water Relations and Carbon Dynamics; Forest ecology and management
TL;DR: It is concluded that the NSC/N ratio of reserves in the previous growing season represents a better measure of resources available for use in defense and growth than the foliar N SC/N ratios. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

2013 article

The Pseudomonas syringae pv. tomato Type III Effector HopM1 Suppresses Arabidopsis Defenses Independent of Suppressing Salicylic Acid Signaling and of Targeting AtMIN7

Gangadharan, A., Sreerekha, M.-V., Whitehill, J., Ham, J. H., & Mackey, D. (2013, December 6). PLoS ONE, Vol. 8.

By: A. Gangadharan*, M. Sreerekha*, J. Whitehill*, J. Ham* & D. Mackey*

Contributors: A. Gangadharan*, M. Sreerekha*, J. Whitehill*, J. Ham* & D. Mackey*

MeSH headings : Arabidopsis / genetics; Arabidopsis / immunology; Arabidopsis / microbiology; Arabidopsis Proteins / genetics; Arabidopsis Proteins / metabolism; Bacterial Proteins / metabolism; Bacterial Secretion Systems; Basic-Leucine Zipper Transcription Factors / metabolism; Gene Expression Regulation, Plant; Guanine Nucleotide Exchange Factors; Plant Diseases / immunology; Plant Diseases / microbiology; Pseudomonas syringae / pathogenicity; Pseudomonas syringae / physiology; RNA, Messenger / genetics; RNA, Messenger / metabolism; Salicylic Acid / metabolism; Signal Transduction / genetics; Transcription Factors / genetics; Transcription Factors / metabolism; Virulence / genetics
topics (OpenAlex): Plant-Microbe Interactions and Immunity; Plant Pathogenic Bacteria Studies; Legume Nitrogen Fixing Symbiosis
TL;DR: HopM1 promotes bacterial virulence independent of suppressing SA-signaling and links TGA3, AtMIN7, and other HopM1 targets to pathways distinct from the canonical SA- Signaling pathway contributing to PR-1 expression and callose deposition. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

2012 article

Interspecific Comparison of Constitutive Ash Phloem Phenolic Chemistry Reveals Compounds Unique to Manchurian Ash, a Species Resistant to Emerald Ash Borer

Whitehill, J. G. A., Opiyo, S. O., Koch, J. L., Herms, D. A., Cipollini, D. F., & Bonello, P. (2012, May 1). Journal of Chemical Ecology, Vol. 5, pp. 499–511.

By: J. Whitehill*, S. Opiyo*, J. Koch*, D. Herms*, D. Cipollini* & P. Bonello*

Contributors: J. Whitehill*, S. Opiyo*, J. Koch*, D. Herms*, D. Cipollini* & P. Bonello*

author keywords: Agrilus planipennis; Fraxinus; Wood-borer; HPLC; Host plant resistance; Plant-insect interactions; Invasive species; Emerald ash borer; Coleoptera; Buprestidae
MeSH headings : Animals; Coleoptera / physiology; Fraxinus / chemistry; Fraxinus / physiology; Lignin / chemistry; Lignin / isolation & purification; Lignin / metabolism; Phenols / chemistry; Phenols / isolation & purification; Phenols / metabolism; Phloem / chemistry; Phloem / metabolism; Seasons; Species Specificity
topics (OpenAlex): Forest Insect Ecology and Management; Insect and Pesticide Research; Insect-Plant Interactions and Control
TL;DR: Describing constitutive phenolic profiles and lignin levels in the phloem of green, white, black, blue, European, and Manchurian ash identified 66 metabolites that displayed a pattern of variation that corresponded strongly with phylogeny, and may contribute to its relatively high resistance to EAB. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2012 article

Nutritional attributes of ash (Fraxinus spp.) outer bark and phloem and their relationships to resistance against the emerald ash borer

Hill, A. L., Whitehill, J. G. A., Opiyo, S. O., Phelan, P. L., & Bonello, P. (2012, November 9). Tree Physiology, Vol. 12, pp. 1522–1532.

By: A. Hill*, J. Whitehill*, S. Opiyo*, P. Phelan* & P. Bonello*

Contributors: A. Hill*, J. Whitehill*, S. Opiyo*, P. Phelan* & P. Bonello*

author keywords: Agrilus planipennis; EAB; emerald ash borer; Fraxinus americana; Fraxinus mandshurica; Fraxinus nigra; Fraxinus pennsylvanica; GC-MS; insect nutrition; plant-insect interactions; plant resistance; primary metabolism
MeSH headings : Animals; Coleoptera / physiology; Feeding Behavior; Food Chain; Fraxinus / chemistry; Fraxinus / metabolism; Multivariate Analysis; Phloem / chemistry; Phloem / metabolism; Plant Bark / chemistry; Plant Bark / metabolism; Principal Component Analysis; Species Specificity
topics (OpenAlex): Forest Insect Ecology and Management; Insect-Plant Interactions and Control; Insect behavior and control techniques
TL;DR: Water content and concentrations were found to separate black and Manchurian ash from green and white ash in a principal component analysis (PCA), confirming their phylogenetic placements into two distinct clades. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

2012 article

The U-Box/ARM E3 Ligase PUB13 Regulates Cell Death, Defense, and Flowering Time in Arabidopsis   

Li, W., Ahn, I.-P., Ning, Y., Park, C.-H., Zeng, L., Whitehill, J. G. A., … Wang, G.-L. (2012, March 1). PLANT PHYSIOLOGY, Vol. 5, pp. 239–250.

By: W. Li*, I. Ahn*, Y. Ning*, C. Park*, L. Zeng*, J. Whitehill*, H. Lu*, Q. Zhao* ...

Contributors: W. Li*, I. Ahn*, Y. Ning*, C. Park*, L. Zeng*, J. Whitehill*, H. Lu*, Q. Zhao* ...

MeSH headings : Arabidopsis / enzymology; Arabidopsis / genetics; Arabidopsis / microbiology; Arabidopsis / physiology; Arabidopsis Proteins / genetics; Arabidopsis Proteins / metabolism; Botrytis / immunology; Botrytis / pathogenicity; Carboxylic Ester Hydrolases / genetics; Carboxylic Ester Hydrolases / metabolism; Cell Death; Cloning, Molecular; Enzyme Activation; Enzyme Assays; Flowers / metabolism; Flowers / physiology; Gene Expression Regulation, Plant; Genes, Plant; Humidity; Hydrogen Peroxide / metabolism; MADS Domain Proteins / genetics; MADS Domain Proteins / metabolism; Plant Diseases / immunology; Plant Diseases / microbiology; Plant Immunity; Plants, Genetically Modified / enzymology; Plants, Genetically Modified / genetics; Plants, Genetically Modified / microbiology; Plants, Genetically Modified / physiology; Protein Structure, Tertiary; Pseudomonas / pathogenicity; Salicylates / metabolism; Time Factors; Ubiquitin-Protein Ligases / genetics; Ubiquitin-Protein Ligases / metabolism; Ubiquitination
topics (OpenAlex): Plant Molecular Biology Research; Plant-Microbe Interactions and Immunity; Plant Gene Expression Analysis
TL;DR: It is demonstrated that PUB13 acts as an important node connecting SA-dependent defense signaling and flowering time regulation in Arabidopsis, and two components involved in the SA-mediated signaling pathway, SID2 and PAD4, are required for the defense and flowering-time phenotypes caused by the loss of function of PUB 13. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

2011 article

Distinguishing Defensive Characteristics in the Phloem of Ash Species Resistant and Susceptible to Emerald Ash Borer

Cipollini, D., Wang, Q., Whitehill, J. G. A., Powell, J. R., Bonello, P., & Herms, D. A. (2011, May 1). Journal of Chemical Ecology, Vol. 5, pp. 450–459.

By: D. Cipollini*, Q. Wang*, J. Whitehill*, J. Powell*, P. Bonello* & D. Herms*

Contributors: D. Cipollini*, Q. Wang*, J. Whitehill*, J. Powell*, P. Bonello* & D. Herms*

MeSH headings : Animals; Catechol Oxidase / isolation & purification; Catechol Oxidase / metabolism; Coleoptera / physiology; Fraxinus / metabolism; Fraxinus / parasitology; Host-Parasite Interactions; Lignin / isolation & purification; Lignin / metabolism; Peroxidase / isolation & purification; Peroxidase / metabolism; Phenols / isolation & purification; Phenols / metabolism; Phloem / metabolism; Plant Proteins / isolation & purification; Plant Proteins / metabolism
topics (OpenAlex): Forest Insect Ecology and Management; Insect-Plant Interactions and Control; Insect Pest Control Strategies
TL;DR: Principal components analysis revealed clear separations between Manchurian, white, and green ashes on the basis of all phenolics, as well as clear separation on the based of quantities of phenolics that all species shared. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2011 journal article

Feeding by emerald ash borer larvae induces systemic changes in black ash foliar chemistry

Phytochemistry, 72(16), 1990–1998.

By: Y. Chen*, J. Whitehill*, P. Bonello* & T. Poland*

Contributors: Y. Chen*, J. Whitehill*, P. Bonello* & T. Poland*

author keywords: Agrilus planipennis; Fraxinus nigra; Oleaceae; Nutrition; Phenolics; Foliage volatiles; Amino acids; Coleoptera; Plant-arthropod interactions
MeSH headings : Amino Acids / metabolism; Animals; Carbohydrate Metabolism; Coleoptera / physiology; Feeding Behavior; Fraxinus / chemistry; Fraxinus / metabolism; Fraxinus / physiology; Phenols / metabolism; Plant Leaves / chemistry; Plant Proteins / metabolism; Volatile Organic Compounds / chemistry; Volatile Organic Compounds / metabolism
topics (OpenAlex): Forest Insect Ecology and Management; Horticultural and Viticultural Research; Insect-Plant Interactions and Control
TL;DR: Overall, EAB larval feeding suppressed (Z)-3-hexenyl acetate emission, elevated (E)-β-ocimene emission in the first 30days, but emissions leveled off thereafter, and generally increased the emission of (Z,E)-α-farnesene. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: ORCID, Web Of Science, NC State University Libraries
Added: August 24, 2020

2011 article

Interspecific Proteomic Comparisons Reveal Ash Phloem Genes Potentially Involved in Constitutive Resistance to the Emerald Ash Borer

Whitehill, J. G. A., Popova-Butler, A., Green-Church, K. B., Koch, J. L., Herms, D. A., & Bonello, P. (2011, September 15). PLoS ONE, Vol. 6.

By: J. Whitehill*, A. Popova-Butler*, K. Green-Church*, J. Koch*, D. Herms* & P. Bonello*

Contributors: J. Whitehill*, A. Popova-Butler*, K. Green-Church*, J. Koch*, D. Herms* & P. Bonello*

MeSH headings : Animals; Coleoptera / physiology; Electrophoresis, Gel, Two-Dimensional; Fraxinus / genetics; Fraxinus / parasitology; Genes, Plant / genetics; Molecular Sequence Annotation; Phloem / genetics; Phylogeny; Plant Proteins / classification; Plant Proteins / genetics; Plant Proteins / metabolism; Principal Component Analysis; Proteomics / methods; Species Specificity; Trypsin / metabolism
topics (OpenAlex): Forest Insect Ecology and Management; Insect-Plant Interactions and Control; Forest Ecology and Biodiversity Studies
TL;DR: DIGE was used to compare the phloem proteomes of resistant Manchurian to susceptible black, green, and white ash and identified proteins potentially associated with its resistance to emerald ash borer. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2010 article

Differential Response in Foliar Chemistry of Three Ash Species to Emerald Ash Borer Adult Feeding

Chen, Y., Whitehill, J. G. A., Bonello, P., & Poland, T. M. (2010, December 8). Journal of Chemical Ecology, Vol. 1, pp. 29–39.

By: Y. Chen*, J. Whitehill*, P. Bonello* & T. Poland*

Contributors: Y. Chen*, J. Whitehill*, P. Bonello* & T. Poland*

author keywords: Agrilus planipennis; Fraxinus; Plant defense; Phenolics; Volatile organic compounds; VOCs; Coleoptera; Buprestidae
MeSH headings : Animals; Chromatography, High Pressure Liquid; Coleoptera / physiology; Feeding Behavior; Female; Fraxinus / chemistry; Fraxinus / parasitology; Plant Leaves / chemistry; Plant Leaves / parasitology; Spectrometry, Mass, Electrospray Ionization; Spectrophotometry, Ultraviolet; Volatile Organic Compounds / analysis
topics (OpenAlex): Forest Insect Ecology and Management; Insect Pest Control Strategies; Plant biochemistry and biosynthesis
TL;DR: Although levels of total phenolics from black and green ash foliage were not affected by EAB adult feeding, they decreased significantly in white ash, and the possible ecological implications of these findings are discussed. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: ORCID
Added: August 24, 2020

2007 article

<I>Ips pini</I> (Curculionidae: Scolytinae) Is a Vector of the Fungal Pathogen, <I>Sphaeropsis sapinea</I> (Coelomycetes), to Austrian Pines, <I>Pinus nigra</I> (Pinaceae)

Whitehill, J. G. A., Lehman, J. S., & Bonello, P. (2007, February 1). Environmental Entomology, Vol. 36, pp. 114–120.

By: J. Whitehill*, J. Lehman* & P. Bonello*

Contributors: J. Whitehill*, J. Lehman* & P. Bonello*

author keywords: short-and long-range dispersal; phoresy rates; pine engraver beetle; Diplodia tip blight; canker
topics (OpenAlex): Forest Insect Ecology and Management; Insect and Pesticide Research; Entomopathogenic Microorganisms in Pest Control
TL;DR: It is concluded that I. pini is able to transmit S. sapinea to Austrian pine stems and was also capable of transmitting the pathogen under controlled conditions. (via Semantic Scholar)
Source: ORCID
Added: August 24, 2020

Employment

Updated: August 26th, 2020 00:33

2020 - present

North Carolina State University Raleigh, NC, US
Assistant Professor, Christmas Tree Genetics Program Department of Forestry and Environmental Resources

2019 - 2020

British Columbia Ministry of Forests Victoria, British Columbia, CA
Coastal Forest Health Research Scientist Forest Genetics - Forest Improvement and Research Management Branch

2016 - 2020

University of British Columbia Vancouver, BC, CA
Research Associate Michael Smith Laboratories

2011 - 2016

University of British Columbia Vancouver, BC, CA
Post-Doctoral Fellow Michael Smith Laboratories

Education

Updated: August 24th, 2020 11:36

2006 - 2011

Ohio State University Columbus, OH, US
Ph.D., Specialization in Biotechnology and Molecular Biology Plant Pathology

2001 - 2006

Otterbein University Westerville, OH, US
General Music with an emphasis on Piano Performance Music

2001 - 2006

Otterbein University Westerville, OH, US
Life Science emphasis on Plant Science, Ecology and Molecular Biology Biology

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