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Differential effects of organic compounds on cucumber damping-off and biocontrol activity of antagonistic bacteria

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Differential effects of organic compounds on cucumber damping-off and biocontrol activity of antagonistic bacteria. / Li, Bin; Ravnskov, Sabine; Guanlin, X.; Larsen, John.

In: Journal of Plant Pathology, Vol. 93, No. 1, 2011, p. 43-50.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

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Li, Bin ; Ravnskov, Sabine ; Guanlin, X. ; Larsen, John. / Differential effects of organic compounds on cucumber damping-off and biocontrol activity of antagonistic bacteria. In: Journal of Plant Pathology. 2011 ; Vol. 93, No. 1. pp. 43-50.

Bibtex

@article{50a599aedf134057a378ab26e15a228f,
title = "Differential effects of organic compounds on cucumber damping-off and biocontrol activity of antagonistic bacteria",
abstract = "The influence of the organic compounds tryptic soy broth, cellulose, glucose and chitosan on cucumber damping-off caused by Pythium aphanidermatum and biocontrol efficacy of the biocontrol agents (BCAs) Paenibacillus macerans and P. polymyxa were examined in a seedling emergence bioassay. Results showed that the organic compounds differentially affected both pathogen and BCAs. Tryptic soy broth, glucose and chitosan increased Pythium damping-off of cucumber, compared to the control treatment without organic compounds, whereas cellulose had no effect. Both Paenibacillus species had biocontrol effects against Pythium damping-off compared with the corresponding treatments with P. aphanidermatum alone, but the biocontrol efficacy depended on the type of organic compounds added. Both BCAs counteracted damping-off in treatments with TSB and chitosan. However, P. polymyxa counteracted damping-off in combination with either glucose amendment or without organic compound amendment, while P. macerans increased damping- off in combination with either cellulose amendment or without organic compound amendment. Dampingoff did not correlate with Pythium biomass estimated by ELISA, nor with background microbial communities as examined using biomarker fatty acids.",
author = "Bin Li and Sabine Ravnskov and X. Guanlin and John Larsen",
year = "2011",
doi = "10.4454/jpp.v93i1.272",
language = "English",
volume = "93",
pages = "43--50",
journal = "Journal of Plant Pathology",
issn = "1125-4653",
publisher = "EdizioniE T S",
number = "1",

}

RIS

TY - JOUR

T1 - Differential effects of organic compounds on cucumber damping-off and biocontrol activity of antagonistic bacteria

AU - Li, Bin

AU - Ravnskov, Sabine

AU - Guanlin, X.

AU - Larsen, John

PY - 2011

Y1 - 2011

N2 - The influence of the organic compounds tryptic soy broth, cellulose, glucose and chitosan on cucumber damping-off caused by Pythium aphanidermatum and biocontrol efficacy of the biocontrol agents (BCAs) Paenibacillus macerans and P. polymyxa were examined in a seedling emergence bioassay. Results showed that the organic compounds differentially affected both pathogen and BCAs. Tryptic soy broth, glucose and chitosan increased Pythium damping-off of cucumber, compared to the control treatment without organic compounds, whereas cellulose had no effect. Both Paenibacillus species had biocontrol effects against Pythium damping-off compared with the corresponding treatments with P. aphanidermatum alone, but the biocontrol efficacy depended on the type of organic compounds added. Both BCAs counteracted damping-off in treatments with TSB and chitosan. However, P. polymyxa counteracted damping-off in combination with either glucose amendment or without organic compound amendment, while P. macerans increased damping- off in combination with either cellulose amendment or without organic compound amendment. Dampingoff did not correlate with Pythium biomass estimated by ELISA, nor with background microbial communities as examined using biomarker fatty acids.

AB - The influence of the organic compounds tryptic soy broth, cellulose, glucose and chitosan on cucumber damping-off caused by Pythium aphanidermatum and biocontrol efficacy of the biocontrol agents (BCAs) Paenibacillus macerans and P. polymyxa were examined in a seedling emergence bioassay. Results showed that the organic compounds differentially affected both pathogen and BCAs. Tryptic soy broth, glucose and chitosan increased Pythium damping-off of cucumber, compared to the control treatment without organic compounds, whereas cellulose had no effect. Both Paenibacillus species had biocontrol effects against Pythium damping-off compared with the corresponding treatments with P. aphanidermatum alone, but the biocontrol efficacy depended on the type of organic compounds added. Both BCAs counteracted damping-off in treatments with TSB and chitosan. However, P. polymyxa counteracted damping-off in combination with either glucose amendment or without organic compound amendment, while P. macerans increased damping- off in combination with either cellulose amendment or without organic compound amendment. Dampingoff did not correlate with Pythium biomass estimated by ELISA, nor with background microbial communities as examined using biomarker fatty acids.

U2 - 10.4454/jpp.v93i1.272

DO - 10.4454/jpp.v93i1.272

M3 - Journal article

VL - 93

SP - 43

EP - 50

JO - Journal of Plant Pathology

JF - Journal of Plant Pathology

SN - 1125-4653

IS - 1

ER -