Antagonistic mechanisms of fluorescent pseudomonads against Phytophthora capsici in black pepper (Piper nigrum L.)
DSpice at Indian Institute of Spices Research
View Archive InfoField | Value | |
Creator |
DIBY, PAUL
ANANDARAJ, M KUMAR, A SARMA, Y R |
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Date |
2006-09-28T12:04:11Z
2006-09-28T12:04:11Z 2005-12 |
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Identifier |
Journal of Spices and Aromatic Crops Vol. 14 (2) : 122-129 (2005)
0971-3328 http://hdl.handle.net/123456789/138 |
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Description |
Fluorescent pseudomonads were selectively isolated from black pepper (Piper nigrum) roots and screened for volatile and non-volatile metabolite production and inhibition in growth of Phytophthora capsici, the causal organism of foot rot disease. Among the isolates tested, the inhibition of P. capsici varied from 36.3% to 70.0% by non-volatile metabolites and from 2% to 23% by volatile-metabolites. Isolate IISR-51 caused maximum inhibition of P. capsici by production of non-volatile and volatile metabolites. Many of the isolates produced hydrogen cyanide, which limited the growth of P. capsici. The study indicated the involvement of siderophore-mediated antagonism in fluorescent pseudomonads. The fluorescent pseudomonads could systemically invade black pepper cuttings upon root bacterization.
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Format |
1283136 bytes
application/pdf |
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Language |
en
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Publisher |
Indian Society for Spices
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Subject |
biological control
black pepper fluorescent pseudomonads Phytophthora capsici Piper nigrum |
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Title |
Antagonistic mechanisms of fluorescent pseudomonads against Phytophthora capsici in black pepper (Piper nigrum L.)
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Type |
Article
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