期刊
PLANT SIGNALING & BEHAVIOR
卷 4, 期 7, 页码 669-671出版社
TAYLOR & FRANCIS INC
DOI: 10.1111/j.1365-313X.2009.03887.x
关键词
compatibility; plant defense; gibberellic acid; symbiosis; plant hormones
资金
- Deutsche Forschungsgemeinschaft, DFG [FOR666]
Piriformospora indica is a mutualistic root-colonising basidiomycete that tranfers various benefits to colonized host plants including growth promotion, yield increases as well as abiotic and biotic stress tolerance. The fungus is characterized by a broad host spectrum encompassing various monocots and dicots.(1,2) Our recent microarray-based studies indicate a general plant defense suppression by P. indica and significant changes in the GA biosynthesis pathway.(3) Furthermore, barley plants impaired in GA synthesis and perception showed a significant reduction in mutualistic colonization, which was associated with an elevated expression of defense-related genes. Here, we discuss the importance of plant hormones for compatibility in plant root-P. indica associations. Our data might provide a first explanation for the colonization success of the fungus in a wide range of higher plants.
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