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Induced systemic resistance against Alternaria sesami, causing blight of sesame and its toxin characterization: Induced systemic resistance against Alternaria sesami, causing blight of sesame and its toxin characterization

Indian Agricultural Research Journals

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Title Induced systemic resistance against Alternaria sesami, causing blight of sesame and its toxin characterization: Induced systemic resistance against Alternaria sesami, causing blight of sesame and its toxin characterization
 
Creator A S SAVITHA
M K NAIK
K AJITHKUMAR
 
Subject Alternaria sesami, Bioagents, Salicylic acid, Sesame and vigour index
 
Description Different resistance inducing chemicals were tested for inhibition of growth and induction of resistance against blight in sesame. Among them, salicylic acid (10 mM) was effective in inhibiting the mycelial growth of A. sesami (68.8%) that causes the blight disease of sesame. The resistance inducing chemicals, plant extracts and bioagents tested in vivo, with challenge inoculation of A. sesami, salicylic acid at one per cent concentration was found to be effective in suppressing the pathogen and resulted in higher vigor index (1138.28) followed by P. fluorescens with good germination per cent of 97.35 and vigor index of 1029.85. The higher vigor index obtained in these treatments might be due to their support for increased germination, good root and shoot growth. Further, the pathogen produces toxic metabolite in culture, the crude toxin was extracted and analysed through infra-red analysis, the peak indicated that the compound may contain more than two OH groups and its assay on seeds and seedling ofsesame and tomato showed least germination, shoot and root length and necrotic symptoms respectively.
 
Publisher Indian Society of Oilseeds Research
 
Date 2023-12-14
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/JOR/article/view/145339
10.56739/jor.v40iSpecialissue.145339
 
Source Journal of Oilseeds Research; Vol. 40 No. Specialissue (2023): Journal of Oilseeds Research
0970-2776
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/JOR/article/view/145339/53037
 
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