Record Details

Potential of Rhizobacteria to control bhendi yellow vein mosaic virus in bhendi

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Potential of Rhizobacteria to control bhendi yellow vein mosaic virus in bhendi
 
Creator Nisha.M.Patil
 
Contributor K.S.Jagadeesh
 
Subject Agricultural Microbiology
 
Description As many as fifty rhizobacterial isolates from the culture collection of Departments of
Agricultural Microbiology and Biotechnology were screened against Bhendi Yellow Vein
Mosaic Virus (BYVMV) disease in bhendi. Based on the disease control, five isolates were
selected for further studies. Four of them (B-40, 212(1), 212(4), 205(4)) belonged to nonfluorescent
Pseudomonas and one 218(1) belonged to fluorescent Pseudomonas. The above
selected rhizobacterial isolates were evaluated for their ability to control BYVMV and
promote growth in bhendi. These isolates controlled the disease ranging from 60 to 86.67
percent. The green house experiment revealed that Pseudomonas 218(1) was the most
promising isolate which controlled BYVMV by 86.67 per cent. The mechanism of virus
control was elucidated. All the isolates induced systemic resistance in bhendi plants. Plants
inoculated with the lignite based formulation of fluorescent Pseudomonas 218(1) recorded
the highest phenol content, peroxidase activity and PALase activity (20.83 %, 79.35 % and
47.05 % respectively higher than the diseased control).
The plants treated with fluorescent Pseudomonas 218(1) also showed the highest
reduction in the insect population (83.33 per cent less than that of the diseased control). Semi
quantitative PCR analysis revealed lower viral load accumulation in plants inoculated with
these isolates. The fluorescent Pseudomonas 218(1) recorded maximum plant height, total
biomass, chlorophyll content and fruit yield. Which were increased by 46, 56, 62 and 132 per
cent, respectively over the diseased control.
 
Date 2016-11-09T17:51:01Z
2016-11-09T17:51:01Z
2010
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/84751
 
Format application/pdf
 
Publisher UAS, Dharwad