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Phytotoxins and their role in development of fusarium wilt in chickpea

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Relation http://oar.icrisat.org/10194/
 
Title Phytotoxins and their role in development of fusarium wilt in chickpea
 
Creator Gopalakrishnan, S
Srinivas, V
 
Subject Chickpea
Plant Disease
 
Description Phytotoxins are low molecular weight metabolites produced by plant pathogens that cause obvious damage to plant tissues
and are known to be involved in plant disease. Phytotoxins from various formae speciales of Fusarium oxysporum such as
fusaric acid from the banana pathogen F. oxysporum f. sp. cubense, beauvericin from the muskmelon pathogen F. oxysporum f.
sp. melonis, and bikaverin and norbikaverin from the cotton pathogen, F. oxysporum f. sp. vasinfectum have been reported to
cause wilt symptoms in their host plants. Fusarium wilt, caused by Fusarium sp. one of the serious disease of chickpea, is
responsible for losses up to 100 per cent when conditions favour the disease. Chlorosis and wilting are common symptoms on the
chickpea plants infected with Fusarium sp. These symptoms suggest that phytotoxins are involved in the Fusarium wilt disease
of chickpea. Filtrates from cultures of Fusarium acutatum, caused permanent wilting of chickpea cuttings and killed cells in a
bioassay. The phytotoxin from the culture filtrate was identified as 8-O-methyl-fusarubin. Knowledge of such phytotoxic metabolites
provides insights into disease syndromes and may be exploited by conventional and molecular breeding to obtain crops
resistant to plant disease.
 
Date 2016
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10194/1/APJAS-2017.pdf
Gopalakrishnan, S and Srinivas, V (2016) Phytotoxins and their role in development of fusarium wilt in chickpea. Andhra Pradesh Journal of Agricultural Science, 2 (4). pp. 238-247.