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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 5
First page : (272) Last page : (280)
Article doi: :

In vitro Evaluation of Antagonists Against Xanthomonas axonopodis pv. punice

A. Chowdappa1*, A. Kamalakannan1, S. Kousalya2, C. Gopalakrishnan1, K. Venkatesan3 and
G. Shali Raju4

1Department of Plant Pathology, Center for Plant Protection Studies,
2Vanavarayar Institute of Agriculture, Pollachi
3 Department of Horticulture, Tamil Nadu Agricultural University, Coimbatore,
4Krishi Vigyan Kendra, Dr. Y.S.R. Horticultural University, Venkataramannagudem
*Corresponding Author E-mail:
Received: 3.06.2018  |  Revised: 29.07.2018   |  Accepted: 7.07.2018  



Bacterial blight of pomegranate caused by Xanthomonas axonopodispv. punice is an important disease in India. The Biocontrol agents such as six isolates of Bacillus subtilis,seven Pseudomonas fluorescens and six Streptomyces were isolated from the pomegranate rhizosphere soil and identified based on the cultural, biochemical and molecular characters. These biocontrol agents were screened under In vitro condition. Among the six Bacillus subtilis isolates, thehighest inhibition zone was recorded in the BS5 isolate this is followed by BS6 isolate. Among the seven isolates of Pseudomonas fluorescens, the maximum inhibition zone recorded in the Pseudomonas fluorescens PF5 this is followed by PF3 and PF1 isolates. Among the six Streptomyces species screened, the maximum inhibition was recorded in the isolate GG3 followed by GG4 isolate.

Key words: Xanthomonas axonopodispv. punice, Bacillus subtilis, Pseudomonas fluorescens, Streptomyces

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Cite this article: Chowdappa, A., Kamalakannan, A., Kousalya, S., Gopalakrishnan, C., Venkatesan, K. and Shali Raju, G., In vitro Evaluation of Antagonists Against Xanthomonas axonopodis pv. punice, Int. J. Pure App. Biosci.6(5): 272-280 (2018). doi: