Mycorrhizal fungi increase biocontrol potential of Pseudomonas fluorescens

Eleni Siasou, Dominic Standing, Ken Killham, David Johnson

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Wheat roots are susceptible to colonisation by soil-borne pathogens, such as Gaeumannomyces graminis var. tritici (Ggt), which causes the globally important disease take-all, and mutualistic arbuscular mycorrhizal fungi (AMF). Certain rhizosphere fluorescent Pseudomonas strains have received much attention as potential biocontrol agents given their ability to produce antibiotics, such as 2,4-diacetyl-phloroglucinol (DAPG), that confer a measure of plant protection. Here we show that Pseudomonas fluorescens only produced DAPG in the presence of soluble carbon from soil containing either Ggt or AMF, and production increased by two orders of magnitude in response to both AMF and Ggt. Encouragement of mycorrhizat colonisation may therefore offer a sustainable strategy for protection against take-all.
Original languageEnglish
Pages (from-to)1341-1343
Number of pages3
JournalSoil Biology and Biochemistry
Volume41
Issue number6
DOIs
Publication statusPublished - Jun 2009

Fingerprint

Gaeumannomyces graminis var. tritici
Pseudomonas fluorescens
Phloroglucinol
mycorrhizal fungi
take-all
Diacetyl
biological control
diacetyl
Fungi
fungus
Soil
colonization
take-all disease
potential biocontrol agent
Rhizosphere
Pseudomonas
plant protection
antibiotics
Triticum
biological control agents

Cite this

Mycorrhizal fungi increase biocontrol potential of Pseudomonas fluorescens. / Siasou, Eleni; Standing, Dominic; Killham, Ken; Johnson, David.

In: Soil Biology and Biochemistry, Vol. 41, No. 6, 06.2009, p. 1341-1343.

Research output: Contribution to journalArticle

Siasou, Eleni ; Standing, Dominic ; Killham, Ken ; Johnson, David. / Mycorrhizal fungi increase biocontrol potential of Pseudomonas fluorescens. In: Soil Biology and Biochemistry. 2009 ; Vol. 41, No. 6. pp. 1341-1343.
@article{a134361ae4b94e8183ce2c1fe37c7f0b,
title = "Mycorrhizal fungi increase biocontrol potential of Pseudomonas fluorescens",
abstract = "Wheat roots are susceptible to colonisation by soil-borne pathogens, such as Gaeumannomyces graminis var. tritici (Ggt), which causes the globally important disease take-all, and mutualistic arbuscular mycorrhizal fungi (AMF). Certain rhizosphere fluorescent Pseudomonas strains have received much attention as potential biocontrol agents given their ability to produce antibiotics, such as 2,4-diacetyl-phloroglucinol (DAPG), that confer a measure of plant protection. Here we show that Pseudomonas fluorescens only produced DAPG in the presence of soluble carbon from soil containing either Ggt or AMF, and production increased by two orders of magnitude in response to both AMF and Ggt. Encouragement of mycorrhizat colonisation may therefore offer a sustainable strategy for protection against take-all.",
author = "Eleni Siasou and Dominic Standing and Ken Killham and David Johnson",
year = "2009",
month = "6",
doi = "10.1016/j.soilbio.2009.02.028",
language = "English",
volume = "41",
pages = "1341--1343",
journal = "Soil Biology and Biochemistry",
issn = "0038-0717",
publisher = "Elsevier Limited",
number = "6",

}

TY - JOUR

T1 - Mycorrhizal fungi increase biocontrol potential of Pseudomonas fluorescens

AU - Siasou, Eleni

AU - Standing, Dominic

AU - Killham, Ken

AU - Johnson, David

PY - 2009/6

Y1 - 2009/6

N2 - Wheat roots are susceptible to colonisation by soil-borne pathogens, such as Gaeumannomyces graminis var. tritici (Ggt), which causes the globally important disease take-all, and mutualistic arbuscular mycorrhizal fungi (AMF). Certain rhizosphere fluorescent Pseudomonas strains have received much attention as potential biocontrol agents given their ability to produce antibiotics, such as 2,4-diacetyl-phloroglucinol (DAPG), that confer a measure of plant protection. Here we show that Pseudomonas fluorescens only produced DAPG in the presence of soluble carbon from soil containing either Ggt or AMF, and production increased by two orders of magnitude in response to both AMF and Ggt. Encouragement of mycorrhizat colonisation may therefore offer a sustainable strategy for protection against take-all.

AB - Wheat roots are susceptible to colonisation by soil-borne pathogens, such as Gaeumannomyces graminis var. tritici (Ggt), which causes the globally important disease take-all, and mutualistic arbuscular mycorrhizal fungi (AMF). Certain rhizosphere fluorescent Pseudomonas strains have received much attention as potential biocontrol agents given their ability to produce antibiotics, such as 2,4-diacetyl-phloroglucinol (DAPG), that confer a measure of plant protection. Here we show that Pseudomonas fluorescens only produced DAPG in the presence of soluble carbon from soil containing either Ggt or AMF, and production increased by two orders of magnitude in response to both AMF and Ggt. Encouragement of mycorrhizat colonisation may therefore offer a sustainable strategy for protection against take-all.

U2 - 10.1016/j.soilbio.2009.02.028

DO - 10.1016/j.soilbio.2009.02.028

M3 - Article

VL - 41

SP - 1341

EP - 1343

JO - Soil Biology and Biochemistry

JF - Soil Biology and Biochemistry

SN - 0038-0717

IS - 6

ER -