Record Details

In vitro and in planta assays for biological control of Fusarium root rot disease of vanilla

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator SUSEELA BHAI, R
REMYA, B
JITHYA DHANESH
 
Date 2011-05-16T20:59:49Z
2011-05-16T20:59:49Z
2009
 
Identifier Journal of Biological Control 23(1): 83-86 (2009)
http://hdl.handle.net/123456789/677
 
Description Rhizospbere and pbyllospbere organisms isolated from vanilla consisted of predominant colonizers such as Fusarium st>. (24 isolates) and Colletotrichum sp. (20 isolates). Otberorganisms were Rhizoctonia sp. (two isolates), Trichoderma spp. (seven isolates),Paeciiomyces sp. (one isolate), Mucor sp. (three isolates), non-sporulating fungal species (10 isolates) and Pseudomonasjluorescens (tbree isolates). When tested in vitro, six isolates showed more than 50% inhibition of Fusarium oxysporum f. sp. vanillae. These were two isolates of Trichoderma sp. (53.30-70.58), one isolate of Paecilomyces sp. (65.000/0) and two isolates of P. jluorescens (59.1562.50%) that were antagonistic to the pathogen. None of the non-pathogenic Fusarium species tested sbowed promising inhibitory effect on R oxysporum f. sp. vanillae. The five promising isolates were tested in planta by challenge inoculation. Paecilomyces sp. provided 100 per cent protection against root rot. T. harzianum and P. fluorescens provided 40%. protection. Thus the present study indicated the possibility of using Paecilomyces sp. as a potential antagonist for R oxysporum f. sp. vanillae.
 
Format 385713 bytes
application/pdf
 
Language en
 
Subject Biological control
Colletotrichum sp.
Fusarium oxysporum f. sp. vanillae
in vitro screening
root rot
Vanilla planifolia
 
Title In vitro and in planta assays for biological control of Fusarium root rot disease of vanilla
 
Type Article