Udo Blum

Works (28)

Updated: April 4th, 2024 16:16

2022 article

The challenges of using treatment solution properties to determine concentrations for the inhibition of seedling processes by monoprotic phenolic acids

Blum, U. (2022, December 14). PLANT AND SOIL, Vol. 12.

By: U. Blum n 

author keywords: Allelopathic agents; Neutral molecules; Monoprotic phenolic acids; Solution properties; % inhibition of seedling processes
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science; OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: January 3, 2023

2021 article

Pioneers of Allelopathy: XVII. Udo Blum

Blum, U. (2021, March). ALLELOPATHY JOURNAL, Vol. 52, pp. 143–162.

By: U. Blum* 

author keywords: cover crop residues; phenolic asids; seedling effects; soil processes; weeds
TL;DR: Udo Blum had a teaching and research career of 34 years and has subsequently written a three-volume retrospective analysis of his research on plant-plant allelopathic interactions involving phenolic acids. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: April 5, 2021

2014 book

Plant-plant allelopathic interactions II: Laboratory bioassays for water-soluble compounds with an emphasis on phenolic acids

New York: Springer Verlag.

By: U. Blum 

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Interrelationships between p-coumaric acid, evapotranspiration, soil water content, and leaf expansion

JOURNAL OF CHEMICAL ECOLOGY, 32(8), 1817–1834.

By: U. Blum n  & T. Gerig n

author keywords: cucumber seedlings; p-coumaric acid; evaporation; evapotranspiration leaf area expansion; soil water content; soil solution concentrations inhibition and recovery; negative feedback regulation; allelopathy; competition
MeSH headings : Coumaric Acids / pharmacology; Cucumis sativus / drug effects; Cucumis sativus / growth & development; Plant Leaves / drug effects; Plant Leaves / growth & development; Plant Transpiration / drug effects; Propionates; Seedlings / drug effects; Seedlings / growth & development; Soil / analysis; Time Factors; Water
TL;DR: Increased soil moisture associated with p-coumaric acid treatments of sensitive species suggests a means by which the magnitude of some allelopathic interactions may be modified and resource competition and allelopathy could interact. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2005 journal article

Relationships between phenolic acid concentrations, transpiration, water utilization, leaf area expansion, and uptake of phenolic acids: Nutrient culture studies

JOURNAL OF CHEMICAL ECOLOGY, 31(8), 1907–1932.

By: U. Blum n  & T. Gerig n

author keywords: absolute and relative rates of leaf expansion; feedback regulation; inhibition; phenolic acids; phenolic acid depletion and uptake; recovery; transpiration; water utilization
MeSH headings : Cucumis sativus / physiology; Hydrogen-Ion Concentration; Hydroxybenzoates / metabolism; Plant Leaves / physiology; Plant Roots / metabolism; Plant Transpiration / physiology; Time Factors; Water / metabolism
TL;DR: The ability of cucumber seedlings to modify active phenolic acid concentrations surrounding their roots suggests that cucumbers seedling can directly influence the magnitude of primary and secondary effects of phenolic acids through feedback regulation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
6. Clean Water and Sanitation (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 journal article

Root and shoot growth periodicity of Kalmia latifolia 'Sarah' and Ilex crenata 'Compacta'

HortScience, 39(2), 243–247.

By: A. Wright, S. Warren, F. Blazich & U. Blum 

Source: NC State University Libraries
Added: August 6, 2018

2002 journal article

Effects of wheat residues on dicotyledonous weed emergence in a simulated no-till system

Allelopathy Journal, 9(2), 159–176.

By: U. Blum , L. King & C. Brownie

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Can simultaneous inhibition of seedling growth and stimulation of rhizosphere bacterial populations provide evidence for phytotoxin transfer from plant residues in the bulk soil to the rhizosphere of sensitive species?

JOURNAL OF CHEMICAL ECOLOGY, 27(4), 807–829.

By: K. Staman, U. Blum* , F. Louws n  & D. Robertson

author keywords: allelopathy; bulk-soil and rhizosphere bacteria; Cucumis sativus; Helianthus annuus; Triticum aestivum; Amaranthus retroflexus; phenolic acid mixtures; chlorogenic acid; phytotoxicity
MeSH headings : Amaranthus / chemistry; Amaranthus / physiology; Bacteria; Cucumis sativus / chemistry; Helianthus / chemistry; Phenols / pharmacology; Plant Development; Plant Extracts / pharmacology; Plant Roots / microbiology; Population Dynamics; Soil Microbiology; Triticum / chemistry; Triticum / physiology
TL;DR: It was possible to observe simultaneous inhibition of cucumber seedlings and stimulation of phenolic acid utilizing rhizosphere bacteria, and therefore provide indirect evidence of Phenolic acid transfer from plant residues in the soil to the root surface, which may be useful for phytotoxins that are more unique than phenolic acids. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2000 journal article

Induction and/or selection of phenolic acid-utilizing bulk-soil and rhizosphere bacteria and their influence on phenolic acid phytotoxicity

JOURNAL OF CHEMICAL ECOLOGY, 26(9), 2059–2078.

By: U. Blum n , K. Staman  n, L. Flint n & . Shafer*

author keywords: allelopathy; bulk-soil and rhizosphere bacteria; Cucumis; phenolic acid mixtures; phytotoxicity
TL;DR: There were significant inverse relationships between PAU bacteria in the rhizosphere of cucumber seedlings and absolute rates of leaf expansion and/or shoot biomass and this is the first time that such a relationship has been quantified. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1999 chapter

Designing laboratory plant debris-soil bioassays: Some reflections

In K. M. M. D. Inderjit & C. Foy (Eds.), Principles and practices in plant ecology: Allelochemical interactions (pp. 17–23). Boca Raton, Fla.: CRC Press.

By: U. Blum 

Ed(s): K. Inderjit & C. Foy

Source: NC State University Libraries
Added: August 6, 2018

1999 journal article

Evaluation of ferulic acid uptake as a measurement of allelochemical dose: Effective concentration

Journal of Chemical Ecology, 25(11), 2589–2600.

By: M. Lehman & U. Blum 

Source: NC State University Libraries
Added: August 6, 2018

1999 journal article

Evidence for inhibitory allelopathic interactions involving phenolic acids in field soils: Concepts vs. an experimental model

Critical Reviews in Plant Sciences, 18(5), 673–693.

By: U. Blum n , S. Shafer* & M. Lehman*

UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1999 journal article

Influence of pretreatment stresses on inhibitory effects of ferulic acid, an allelopathic phenolic acid

JOURNAL OF CHEMICAL ECOLOGY, 25(7), 1517–1529.

By: M. Lehman* & U. Blum n 

author keywords: allelopathy; ferulic acid; pretreatment; acclimation; tolerance; drought stress; nutrient stress; Cucumbis sativus; cucumber
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
6. Clean Water and Sanitation (OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1999 chapter

The fates and effects of phenolic acids in a plant-microbe-soil model system

In J. G. C. G. F. A. Macias, J. M. G. Molinillo, & H. Cutler (Eds.), Recent advances in allelopathy: I. A. science for the future (pp. 159–166). Cadiz, Spain: Servicio de Publicaciones, Universidad de Cadiz.

By: U. Blum , M. Austin & S. Shafer

Ed(s): J. F. A. Macias, J. Molinillo & H. Cutler

Source: NC State University Libraries
Added: August 6, 2018

1998 journal article

Biomass of tomato seedlings exposed to an allelopathic phenolic acid and enriched atmospheric carbon dioxide

WATER AIR AND SOIL POLLUTION, 106(1-2), 123–136.

By: . Shafer n, U. Blum n , S. Horton n & D. Hesterberg n 

Contributors: S. Shafer n, U. Blum n , S. Horton n & D. Hesterberg n 

author keywords: global change; community ecology; interference
TL;DR: Results suggest that if CO2 affects plant competition, mechanisms involving allelopathic phenolic acids may not be involved, and twice-ambient CO2 significantly increased the y-intercept for the dose-response model for the p-coumaric acid effect on shoot biomass but had negligible effects on other aspects of the models. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

1998 journal article

Effects of microbial utilization of phenolic acids and their phenolic acid breakdown products on allelopathic interactions

JOURNAL OF CHEMICAL ECOLOGY, 24(4), 685–708.

By: U. Blum n 

author keywords: allelopathy; phenolic acids; sorption; microbial utilization; soil extractions; ferulic acid; p-coumaric acid; p-hydroxybenzoic acid; vanillic acid
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1997 journal article

Benefits of citrate over EDTA for extracting phenolic acids from soils and plant debris

JOURNAL OF CHEMICAL ECOLOGY, 23(2), 347–362.

By: U. Blum n 

author keywords: citrate; EDTA; soil extractions; ferulic acid; phenolic acids; Trifolium incarnatum L Tibbee; Trifolium subterraneaum L Mt Barker; Secale cereale L Wrens Abruzzi; Tritium aestivum L Coker 983
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1997 journal article

Cover crop debris effects on weed emergence as modified by environmental factors

Allelopathy Journal, 4(1997), 69–88.

By: M. Lehman & U. Blum 

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Effects of clover and small grain cover crops and tillage techniques on seedling emergence of dicotyledonous weed species

American Journal of Alternative Agriculture, 12(4), 146–161.

By: U. Blum n , L. King n, T. Gerig n, M. Lehman n & A. Worsham n

UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1996 journal article

Allelopathic interactions involving phenolic acids

Journal of Nematology, 28(3), 259.

By: U. Blum 

Source: NC State University Libraries
Added: August 6, 2018

1995 journal article

The value of model plant-microbe-soil systems for understanding processes associated with allelopathic interaction. One example

Allelopathy : Organisms, Processes, and Applications, 127.

By: U. Blum n 

Ed(s): D. Inderjit & F. Einhellig

UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

1993 journal article

MODIFICATION OF ALLELOPATHIC EFFECTS OF P-COUMARIC ACID ON MORNING-GLORY SEEDLING BIOMASS BY GLUCOSE, METHIONINE, AND NITRATE

JOURNAL OF CHEMICAL ECOLOGY, 19(12), 2791–2811.

By: U. Blum n , T. Gerig n, A. Worsham n & L. King n

author keywords: MORNING-GLORY; IPOMOEA HEDERACEA; GROWTH INHIBITION; P-COUMARIC ACID; ALLELOPATHIC INTERACTIONS; LEUCINE; METHIONINE; GLUCOSE; NITRATE
TL;DR: Results suggested that allelopathic interactions in soil environments can be a function of interacting neutral substances (e.g., glucose, promoters, and/or inhibitors) of plant growth. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1992 journal article

ALLELOPATHIC ACTIVITY IN WHEAT-CONVENTIONAL AND WHEAT-NO-TILL SOILS - DEVELOPMENT OF SOIL EXTRACT BIOASSAYS

JOURNAL OF CHEMICAL ECOLOGY, 18(12), 2191–2221.

By: U. Blum n , T. Gerig n, A. Worsham n, L. Holappa n & L. King n

author keywords: COVER CROPS; WHEAT; TRITICUM-AESTIVUM; SOYBEAN; GLYCINE-MAX; SOIL EXTRACTS; GERMINATION BIOASSAYS; PHENOLIC ACIDS; HYDROXAMIC ACIDS; ALLELOPATHY; SLOPE ANALYSIS; IVY-LEAVED MORNING GLORY; IPOMOEA-HEDERACEA; CRIMSON CLOVER; TRIFOLIUM-INCARNATUM
TL;DR: Data derived from the water-autoclave extraction procedure, FC analysis, and slope analysis for extract activity in conjunction with data on extract pH and solute potential can be used to estimate allelopathic activity of wheat-no-till soils. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science; OpenAlex)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1989 journal article

INHIBITION AND RECOVERY OF CUCUMBER ROOTS GIVEN MULTIPLE TREATMENTS OF FERULIC ACID IN NUTRIENT CULTURE

JOURNAL OF CHEMICAL ECOLOGY, 15(3), 917–928.

By: U. Blum n  & J. Rebbeck n

TL;DR: Changes in general root morphology, i.e., average root length and root number, associated with ferulic acid treatments, were partially reversed or not affected when ferulic Acid was removed from the root environment. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
15. Life on Land (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1983 journal article

INVESTIGATION OF OZONE (O3) EFFECTS ON C-14 DISTRIBUTION IN LADINO CLOVER

ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 23(4), 369–378.

By: U. Blum n , E. Mrozek n & E. Johnson n

TL;DR: Total plant radioactivity values, determined 24 hr after the 14 CO 2 exposure, indicated that increasing O 3 concentrations reduced net photosynthesis of clover plants. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1983 journal article

THE EFFECTS OF OZONE ON FESCUE-CLOVER FORAGE - REGROWTH, YIELD AND QUALITY

ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 23(2), 121–132.

By: U. Blum n , A. Heagle n, J. Burns n & R. Linthurst n

TL;DR: Data suggest that ambient levels of O 3 in the south-eastern U.S. can have a negative impact on forage quality and quantity of fescue-ladino clover pastures. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1982 journal article

EFFECTS OF MULTIPLE O-3 EXPOSURES ON CARBOHYDRATE AND MINERAL CONTENTS OF LADINO CLOVER

ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 22(2), 143–154.

By: U. Blum n , G. Smith n & R. Fites n

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1980 journal article

EFFECTS OF ACUTE OZONE EXPOSURES ON SNAP BEAN AT VARIOUS STAGES OF ITS LIFE-CYCLE

ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 20(1), 73–85.

By: U. Blum n  & W. Heck n

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

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