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Characterization of Xanthomonas campestris pv. viticola causing bacterial leaf spot of grapes in Maharashtra, India

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Title Characterization of Xanthomonas campestris pv. viticola causing bacterial leaf spot of grapes in Maharashtra, India
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Creator Kamble,A.K., S.D. Sawant, I.S. Sawant, S.B. Ghule, A.C. Patil and S. Saha:
 
Subject 16SrDNA, Bacterial leaf spot, Grape vineyards, Xanthomonas campestris pv.viticola
 
Description Not Available
Aim: The aim of the present study was to isolate, characterize and identify pathogenic bacteria from bacterial leaf spot infected grape vineyards of Maharashtra. Methedology: Collected diseased samples were subjected to isolation. All isolated were also used to standartize inoculation methods to study host range and test pathogenicity to confirm infectivity. Genomic DNA was isolated from bacteria for pathogenetic analysis using 16SrDNA. Results: The disease is characterized by water soaked, angular leaf spot which later turns to irregular, dark brown to black necrotic region on the leaf surface. Microbial studies confirmed that it is a Gram negative, rod shaped bacterium with white, mucoid, glistening and convex circular colonies on artificial medium. Pathogenecity test was performed to confirm virulrnce. Phylogenetic analysis of 16SrDNA gene exhibited more than 99% similarity with other Xanthomonas Campestris pv. viticola. The bacterium was found resistant to vancomycin, peniciliin and oxacillin antibiotics. The bacterium is also capable of infecting Mangifera indica and Citrus limon along with eight weed species.
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Date 2021-07-29T04:52:33Z
2021-07-29T04:52:33Z
2019-05-08
 
Type Research Paper
 
Identifier Kamble,A.K., S.D. Sawant, I.S. Sawant, S.B. Ghule, A.C. Patil and S. Saha: Characterization of Xanthomonas campestris pv. viticola causing bacterial leaf spot of grapes in Maharashtra, India. J. Environ. Biol., 40, 1145-1150 (2019).
0254-8704 and 2394-0379
http://krishi.icar.gov.in/jspui/handle/123456789/50942
 
Language English
 
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Publisher Not Available