Open AccessAnalysis of Resistant Mechanisms in Groundnut Genotypes against Late Leaf Spot Disease
Author(s) -
K. Karunanithi,
G. Senthilraja,
K. Subrahmaniyan
Publication year - 2021
Publication title -
international journal of advances in agricultural science and technology
Language(s) - English
Resource type - Journals
ISSN - 2348-1358
DOI - 10.47856/ijaast.2021.v08i7.001
Subject(s) - phenylalanine ammonia lyase , polyphenol oxidase , leaf spot , peroxidase , arachis hypogaea , cultivar , horticulture , biology , plant disease resistance , phenylalanine , catechol oxidase , botany , enzyme , biochemistry , gene , amino acid
Forty two groundnut (Arachis hypogaea) cultivars were screened for resistance to Phaeoisariopsispersonata under glasshouse conditions. Among them, two germplasms (VG19561 and VG19654) were found to have resistance against late leaf spot. Biochemical parameters such as, phenylalanine ammonia-lyase, peroxidase, polyphenol oxidase and total phenols were estimated among the resistant germplasms and susceptible check, VRI2. biochemical analysis revealed the increased activities of the enzymes viz., phenylalanine ammonia lyase, peroxidase, polyphenol oxidase, and phenolics in the resistant germplasms viz., VG19561 and VG19654 than the susceptible check, VRI 2.