Journal
JOURNAL OF EUKARYOTIC MICROBIOLOGY
Volume 56, Issue 4, Pages 386-387Publisher
WILEY
DOI: 10.1111/j.1550-7408.2009.00417.x
Keywords
Phenolic acid; plant-microbe interaction
Categories
Funding
- Science and Technology Ministry of China [2007CB109304, 2006GB23600 454, 2006AAD10Z416, 2006BAD10B09]
- Agricultural Ministry of China [2006-G62, 06-07-04B]
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Plant-microbe interactions are often accompanied by allelochemicals, such as syringic acid, released from the host plant. To explore the role of phenolic acids released from crop host plants in response to pathogen invasion, we examined the allelopathic effect of an artificially applied syringic acid on Fusarium oxysporum f. sp. niveum. We demonstrated that the growth and the conidial germination rate of F. oxysporum f. sp. niveum were stimulated at lower concentrations of syringic acid, though inhibited by higher dosage compared with control. The yield of fungus mycotoxin was increased from 60.9% to 561.5%. We conclude that syringic acid can be considered as a allelochemical inducer, stimulating the relative virulence factors of invading pathogens.
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