Mycolytic enzymes produced by Pseudomonas fluorescens and Trichoderma spp. against Phytophthora capsici, the foot rot pathogen of black pepper (Piper nigrum L.)

Paul, Diby; Saju, K.A.; Jisha, P.J.; Sarma, Y.R.; Kumar, A and Anandaraj, M (2005) Mycolytic enzymes produced by Pseudomonas fluorescens and Trichoderma spp. against Phytophthora capsici, the foot rot pathogen of black pepper (Piper nigrum L.). Annals of Microbiology, 55 (2). pp. 45-49. ISSN 1590-4261

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Abstract

Five strains of Pseudomonas fluorescens and Trichoderma spp., found efficient in suppressing root rot of black pepper (Piper nigrum L.), caused by the pathogen Phytophthora capsici, were tested in vitro for their efficacy in lysing the cell wall of Phytophthora capsici. The antagonists produced mycolytic enzymes viz. β-1,3-glucanases, β-1,4-glucanases and lipases. Variations among the strains were found for the production of these enzymes. Strains of Pseudomonas fluorescens caused cytoplasmic coagulation in the mycelium of Phytophthora capsici when they were cultured together. The findings demonstrate a mechanism of antagonism by Pseudomonas fluorescens and Trichoderma spp.

EPrint Type:Article
Additional Information:Pre-Print draft provided here.
Uncontrolled Keywords:Pseudomonas fluorescens, Trichoderma spp., glucanase, lipase.
Subjects:Biochemical Phenomena, Metabolism, and Nutrition > Metabolism
Biochemical Phenomena, Metabolism, and Nutrition > Biochemical Phenomena
Bacteria > Gram-Negative Bacteria
Biological Sciences > Biochemistry
ID Code:133
Deposited By:Dr Diby Paul
Deposited On:29 June 2005

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