期刊
CANADIAN JOURNAL OF MICROBIOLOGY
卷 54, 期 8, 页码 600-609出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/W08-047
关键词
Hordeum vulgare; hyphal growth inhibition; microscopy; plant disease; root-pathogenic fungi
资金
- Ministerio de Educacion y Ciencia, Spain [AGL2004-05808/AGR, AGL2007-60264/AGR]
- JGVM [AP2002-093]
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, Cyclindrocarpon sp., Cylindrocarpon destructans, Dactylaria sp., Fusarium equiseti, Phoma herbaum, 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 rhizophere 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.
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