Colonization of barley roots by endophytic fungi and their reduction of take-all caused by Gaeumannomyces graminis var. tritici

Jose G. Maciá-Vicente; Hans Börje Jansson; Kurt Mendgen; Luis V. Lopez-Llorca

doi:10.1139/W08-047

Colonization of barley roots by endophytic fungi and their reduction of take-all caused by Gaeumannomyces graminis var. tritici

Jose G. Maciá-Vicente, Hans Börje Jansson^*, Kurt Mendgen, Luis V. Lopez-Llorca

^*Corresponding author for this work

Research output: Contribution to journal/periodical › Article › Scientific › peer-review

65 Citations (Scopus)

Abstract

Fungal root endophytes obtained from natural vegetation were tested for antifungal activity in dual culture tests against the root pathogen Gaeumannomyces graminis var. tritici. Fifteen isolates, including Acremonium blochii, Acremonium furcatum, Aspergillus fumigatus, Cylindrocarpon sp., Cylindrocarpon destructans, Dactylaria sp., Fusarium equiseti, Phoma herbarum, Phoma leveillei, and a sterile mycelium, selected based on the dual culture test, were inoculated on barley roots in growth tubes under axenic conditions, both in the absence and presence of G. graminis var. tritici. All isolates colonized the rhizosphere and very often the root cortex without causing disease symptoms and without affecting plant growth. Eight isolates significantly reduced the symptoms caused by G. graminis var. tritici, and 6 of them reduced its presence in the roots.

Original language	English
Pages (from-to)	600-609
Number of pages	10
Journal	Canadian Journal of Microbiology
Volume	54
Issue number	8
DOIs	https://doi.org/10.1139/W08-047
Publication status	Published - Aug 2008
Externally published	Yes

Keywords

Hordeum vulgare
Hyphal growth inhibition
Microscopy
Plant disease
Root-pathogenic fungi

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10.1139/W08-047

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title = "Colonization of barley roots by endophytic fungi and their reduction of take-all caused by Gaeumannomyces graminis var. tritici",

abstract = "Fungal root endophytes obtained from natural vegetation were tested for antifungal activity in dual culture tests against the root pathogen Gaeumannomyces graminis var. tritici. Fifteen isolates, including Acremonium blochii, Acremonium furcatum, Aspergillus fumigatus, Cylindrocarpon sp., Cylindrocarpon destructans, Dactylaria sp., Fusarium equiseti, Phoma herbarum, Phoma leveillei, and a sterile mycelium, selected based on the dual culture test, were inoculated on barley roots in growth tubes under axenic conditions, both in the absence and presence of G. graminis var. tritici. All isolates colonized the rhizosphere and very often the root cortex without causing disease symptoms and without affecting plant growth. Eight isolates significantly reduced the symptoms caused by G. graminis var. tritici, and 6 of them reduced its presence in the roots.",

keywords = "Hordeum vulgare, Hyphal growth inhibition, Microscopy, Plant disease, Root-pathogenic fungi",

author = "Maci{\'a}-Vicente, {Jose G.} and Jansson, {Hans B{\"o}rje} and Kurt Mendgen and Lopez-Llorca, {Luis V.}",

year = "2008",

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AU - Maciá-Vicente, Jose G.

AU - Jansson, Hans Börje

AU - Mendgen, Kurt

AU - Lopez-Llorca, Luis V.

PY - 2008/8

Y1 - 2008/8

N2 - Fungal root endophytes obtained from natural vegetation were tested for antifungal activity in dual culture tests against the root pathogen Gaeumannomyces graminis var. tritici. Fifteen isolates, including Acremonium blochii, Acremonium furcatum, Aspergillus fumigatus, Cylindrocarpon sp., Cylindrocarpon destructans, Dactylaria sp., Fusarium equiseti, Phoma herbarum, Phoma leveillei, and a sterile mycelium, selected based on the dual culture test, were inoculated on barley roots in growth tubes under axenic conditions, both in the absence and presence of G. graminis var. tritici. All isolates colonized the rhizosphere and very often the root cortex without causing disease symptoms and without affecting plant growth. Eight isolates significantly reduced the symptoms caused by G. graminis var. tritici, and 6 of them reduced its presence in the roots.

AB - Fungal root endophytes obtained from natural vegetation were tested for antifungal activity in dual culture tests against the root pathogen Gaeumannomyces graminis var. tritici. Fifteen isolates, including Acremonium blochii, Acremonium furcatum, Aspergillus fumigatus, Cylindrocarpon sp., Cylindrocarpon destructans, Dactylaria sp., Fusarium equiseti, Phoma herbarum, Phoma leveillei, and a sterile mycelium, selected based on the dual culture test, were inoculated on barley roots in growth tubes under axenic conditions, both in the absence and presence of G. graminis var. tritici. All isolates colonized the rhizosphere and very often the root cortex without causing disease symptoms and without affecting plant growth. Eight isolates significantly reduced the symptoms caused by G. graminis var. tritici, and 6 of them reduced its presence in the roots.

KW - Hordeum vulgare

KW - Hyphal growth inhibition

KW - Microscopy

KW - Plant disease

KW - Root-pathogenic fungi

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JF - Canadian Journal of Microbiology

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ER -

Colonization of barley roots by endophytic fungi and their reduction of take-all caused by Gaeumannomyces graminis var. tritici

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Keywords

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