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Diversity, biocontrol, and plant growth promoting abilities of xylem residing bacteria from solanaceous crops.

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Title Diversity, biocontrol, and plant growth promoting abilities of xylem residing bacteria from solanaceous crops.
Not Available
 
Creator Achari, G.A. and Ramesh, R.
 
Subject Xylem residing bacteria, PGPR, Ralstonia solanacearum, diversity
 
Description Not Available
Eggplant (Solanum melongena L.) is one of the solanaceous crops of economic and cultural importance and is widely cultivated in
the state of Goa, India. Eggplant cultivation is severely affected by bacterial wilt caused by Ralstonia solanacearumthat colonizes the
xylemtissue. In this study, 167 bacteriawere isolated fromthe xylemof healthy eggplant, chilli, and SolanumtorvumSw. by vacuum
infiltration and maceration. Amplified rDNA restriction analysis (ARDRA) grouped these xylem residing bacteria (XRB) into 38
haplotypes. Twenty-eight strains inhibited growth of R. solanacearumand produced volatile and diffusible antagonistic compounds
and plant growth promoting substances in vitro. Antagonistic strainsXB86, XB169, XB177, andXB200 recorded a biocontrol efficacy
greater than 85% against BWand exhibited 12%–22 % increase in shoot length in eggplant in the greenhouse screening. 16S rRNA
based identification revealed the presence of 23 different bacterial genera. XRB with high biocontrol and plant growth promoting
activities were identified as strains of Staphylococcus sp., Bacillus sp., Streptomyces sp., Enterobacter sp., and Agrobacterium sp.This
study is the first report on identity of bacteria from the xylem of solanaceous crops having traits useful in cultivation of eggplant.
Indian Council of Agricultural Research (ICAR), New Delhi, through ‘Outreach project on Phytopthora, Fusarium and Ralstonia diseases of horticultural and field crops’- (PhytoFuRa)
 
Date 2018-11-09T12:21:02Z
2018-11-09T12:21:02Z
2014-05-19
 
Type Research Paper
 
Identifier Achari, G.A. and Ramesh, R. 2014. Diversity, biocontrol, and plant growth promoting abilities of xylem residing bacteria from solanaceous crops. International Journal of Microbiology, vol. 2014, Article ID 296521, 14 pages
1687-918X
http://krishi.icar.gov.in/jspui/handle/123456789/10141
 
Language English
 
Relation Not Available;
 
Publisher Hindawi Publishing Corporation