Acta Phytopathologica et Entomologica Hungarica (2005) 40, 9-22
M. Balamuralikrishnan, Sabitha Doraisamy, T. Ganapathy and R. Viswanathan (2005)
Effects of biotic and abiotic agents on Sugarcane mosaic virus titre, oxidative enzymes and phenolics in Sorghum bicolor
Acta Phytopathologica et Entomologica Hungarica 40 (1-2), 9-22
Abstract: Treatment of acibenzolar-S-methyl (bionTM), salicylic acid and the saprophytic bacterium Pseudomonas fluorescens exhibited induced systemic resistance in Sorghum bicolor (cv. Rio) to Sugarcane mosaic virus (SCMV) isolates from sugarcane. The treatments significantly slowed down the SCMV titre in plants during the initial growth phase. The enhanced induction of total phenols, phenylalanine ammonia lyase (PAL), peroxidase (PO) and polyphenol oxidase (PPO) might have contributed for the induced systemic resistance triggered by various biotic and abiotic inducers. More induction of PO and PPO isozymes were noticed upon application of these inducers. In the present studies, there was a significant decrease of SCMV titre as evidenced by ELISA in these treatments. Among the treatment methods, foliar application was highly effective in case of the abiotic elicitors bion and salicylic acid whereas with P. fluorescens seed treatment was effective.
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Database assignments for author(s): Rasappa Viswanathan
Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution
Pest and/or beneficial records:
Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
---|---|---|---|---|
Sugarcane mosaic virus | Sugarcane (Saccharum officinarum) | India | ||
Pseudomonas fluorescens (antagonist) | Sugarcane mosaic virus | Sugarcane (Saccharum officinarum) | India |