The potential biocontrol agent Pseudomonas antimicrobica inhibits germination of conidia and outgrowth of Botrytis cinerea

R. Walker; Carol Mary Jean Innes; Eunice Jessie Allan

doi:10.1046/j.1472-765X.2001.00915.x

The potential biocontrol agent Pseudomonas antimicrobica inhibits germination of conidia and outgrowth of Botrytis cinerea

R. Walker, Carol Mary Jean Innes, Eunice Jessie Allan

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

Aims: Antifungal metabolites of Pseudomonas antimicrobica have previously been shown to inhibit conidial germination of the grey :mould pathogen Botrytis cinerea. In this study, metabolites of the bacterium have been tested at different stages of Botrytis germination to determine their effects on germ tube production and extension.

Methods and Resulits: Metabolites were added to conidia that had been pre-incubated for either 120 or 255 min. Pseudomonas antimicrobica inhibited B. cinerea conidial germination and caused a significant reduction in germ tube extension, irrespective of the stage of germination. Abnormal germination and a reduction in the frequency of lateral branching of the germ tubes in the presence of the metabolites were also reported, suggesting interference with normal hyphal development.

Conclusions: The bacterium can inhibit germination of conidia and extension of germ tubes at different stages of Botrytis development.

Significance and Impact of the Study: The antagonistic activity of the bacterium has promising implications for its use as a biocontrol agent.

Original language	English
Pages (from-to)	346-348
Number of pages	2
Journal	Letters in Applied Microbiology
Volume	32
DOIs	https://doi.org/10.1046/j.1472-765X.2001.00915.x
Publication status	Published - 2001

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title = "The potential biocontrol agent Pseudomonas antimicrobica inhibits germination of conidia and outgrowth of Botrytis cinerea",

abstract = "Aims: Antifungal metabolites of Pseudomonas antimicrobica have previously been shown to inhibit conidial germination of the grey :mould pathogen Botrytis cinerea. In this study, metabolites of the bacterium have been tested at different stages of Botrytis germination to determine their effects on germ tube production and extension.Methods and Resulits: Metabolites were added to conidia that had been pre-incubated for either 120 or 255 min. Pseudomonas antimicrobica inhibited B. cinerea conidial germination and caused a significant reduction in germ tube extension, irrespective of the stage of germination. Abnormal germination and a reduction in the frequency of lateral branching of the germ tubes in the presence of the metabolites were also reported, suggesting interference with normal hyphal development.Conclusions: The bacterium can inhibit germination of conidia and extension of germ tubes at different stages of Botrytis development.Significance and Impact of the Study: The antagonistic activity of the bacterium has promising implications for its use as a biocontrol agent.",

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year = "2001",

doi = "10.1046/j.1472-765X.2001.00915.x",

language = "English",

volume = "32",

pages = "346--348",

journal = "Letters in Applied Microbiology",

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T1 - The potential biocontrol agent Pseudomonas antimicrobica inhibits germination of conidia and outgrowth of Botrytis cinerea

AU - Walker, R.

AU - Innes, Carol Mary Jean

AU - Allan, Eunice Jessie

PY - 2001

Y1 - 2001

N2 - Aims: Antifungal metabolites of Pseudomonas antimicrobica have previously been shown to inhibit conidial germination of the grey :mould pathogen Botrytis cinerea. In this study, metabolites of the bacterium have been tested at different stages of Botrytis germination to determine their effects on germ tube production and extension.Methods and Resulits: Metabolites were added to conidia that had been pre-incubated for either 120 or 255 min. Pseudomonas antimicrobica inhibited B. cinerea conidial germination and caused a significant reduction in germ tube extension, irrespective of the stage of germination. Abnormal germination and a reduction in the frequency of lateral branching of the germ tubes in the presence of the metabolites were also reported, suggesting interference with normal hyphal development.Conclusions: The bacterium can inhibit germination of conidia and extension of germ tubes at different stages of Botrytis development.Significance and Impact of the Study: The antagonistic activity of the bacterium has promising implications for its use as a biocontrol agent.

AB - Aims: Antifungal metabolites of Pseudomonas antimicrobica have previously been shown to inhibit conidial germination of the grey :mould pathogen Botrytis cinerea. In this study, metabolites of the bacterium have been tested at different stages of Botrytis germination to determine their effects on germ tube production and extension.Methods and Resulits: Metabolites were added to conidia that had been pre-incubated for either 120 or 255 min. Pseudomonas antimicrobica inhibited B. cinerea conidial germination and caused a significant reduction in germ tube extension, irrespective of the stage of germination. Abnormal germination and a reduction in the frequency of lateral branching of the germ tubes in the presence of the metabolites were also reported, suggesting interference with normal hyphal development.Conclusions: The bacterium can inhibit germination of conidia and extension of germ tubes at different stages of Botrytis development.Significance and Impact of the Study: The antagonistic activity of the bacterium has promising implications for its use as a biocontrol agent.

U2 - 10.1046/j.1472-765X.2001.00915.x

DO - 10.1046/j.1472-765X.2001.00915.x

M3 - Article

SN - 0266-8254

VL - 32

SP - 346

EP - 348

JO - Letters in Applied Microbiology

JF - Letters in Applied Microbiology

ER -

The potential biocontrol agent Pseudomonas antimicrobica inhibits germination of conidia and outgrowth of Botrytis cinerea

Abstract

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