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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2022, Vol. 10, Issue 2
Spodoptera litura F. induced cross-resistance against microbial pathogens in Capsicum annuum L.

Movva Vijaya, Pathipati Usha Rani and RS Prakasham

Herbivory by Spodoptera litura (F) larvae stimulate the production of induced defense in chili plants as a defense response. The induced defense response of the plant causes a change in the secondary metabolites. The present study was conducted hypothesizing the role of pest induced defense in inhibiting the successive invading pathogens (Cross-resistance) in chili plants. Bioassay studies were conducted to test our hypothesis and observed herbivory significantly reduced invasion of the bacterial pathogen, Xanthomonas campestris pv. Vesicatoria. As the phenolic acids in the plants are known to possess antimicrobial properties, we presumed the role of S. litura induced phenols in inhibiting the bacterial growth in chili plants as well. An in vitro agar dilution assay was conducted to identify the effective phenolic compound with antimicrobial nature by evaluating the minimum inhibitory concentrations. Overall, syringic acid was found to be effective in inhibiting X. campestris pv. vesicatoria growth, as indicated by low minimum inhibitory concentrations (MICs). The results indicate the cross-resistance role of herbivory induced secondary metabolites.
Pages : 13-19 | 538 Views | 139 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Movva Vijaya, Pathipati Usha Rani, RS Prakasham. Spodoptera litura F. induced cross-resistance against microbial pathogens in Capsicum annuum L.. J Entomol Zool Stud 2022;10(2):13-19. DOI: 10.22271/j.ento.2022.v10.i2a.8962

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