Jasmonic and salicylic acid-induced resistance in sorghum against the stem borer Chilo partellus

Hussain, B and War, A R and Sharma, H C (2014) Jasmonic and salicylic acid-induced resistance in sorghum against the stem borer Chilo partellus. Phytoparasitica, 42 (1). pp. 99-108. ISSN 1876-7184

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Abstract

Induced resistance was studied in three sorghum genotypes (IS2205, ICSV1 and ICSV700) against Chilo partellus (Swinhoe) (Lepidoptera; Pyralidae) infestation and jasmonic acid (JA) and salicylic acid (SA) application. The activity of plant defensive enzymes [peroxidase (POD), polyphenol oxidase (PPO), superoxide dismutase (SOD), and catalase (CAT)], and the amounts of total phenols, hydrogen peroxide (H2O2), malondialdehyde (MDA), and proteins were recorded at 6 days after infestation. The induction of enzyme activities and the amounts of secondary metabolites varied among the genotypes and treatments. The genotype IS2205 showed a stronger effect than that of ICSV1 or ICSV 700. Treatment with JA followed by insect infestation induced greater levels of enzymes and secondary metabolites. The results suggest that JA induces greater levels of resistance components in sorghum plants against insect pests. Thus, pretreatment of plants with elicitors including JA and SA could provide a greater opportunity for plant defense against herbivores.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Antioxidant enzymes, Biotic stress, Induced resistance, Phytohormones, Poaceae, Sorghum bicolor
Subjects:	Mandate crops > Sorghum
Depositing User:	Mr Sanat Kumar Behera
Date Deposited:	03 Sep 2013 04:49
Last Modified:	28 Sep 2015 08:41
URI:	http://oar.icrisat.org/id/eprint/7085
Official URL:	http://dx.doi.org/10.1007/s12600-013-0343-8
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Google Scholar

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