Anti-feedant activity of Pachygone laurifolia (DC.) L.Lian & Wei Wang bark extracts in tobacco cutworm, Spodoptera litura (Lepidoptera: Noctuidae) is mediated through biochemical responses and pathological damage

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dc.date.accessioned2024-10-21T10:37:45Z
dc.date.available2024-10-21T10:37:45Z
dc.date.issued2024-10-18
dc.identifierdoi:10.17170/kobra-2024093010895
dc.identifier.urihttp://hdl.handle.net/123456789/16099
dc.language.isoeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectinsecticidal activityeng
dc.subjectbiopesticideseng
dc.subjectdetoxification enzymeseng
dc.subjecthistopathologyeng
dc.subjectCocculus laurifoliuseng
dc.subject.ddc630
dc.subject.swdBaumwollblattraupeger
dc.subject.swdBiologisches Pflanzenschutzmittelger
dc.subject.swdEntgiftungger
dc.subject.swdEnzymger
dc.subject.swdHistopathologieger
dc.subject.swdRindeger
dc.titleAnti-feedant activity of Pachygone laurifolia (DC.) L.Lian & Wei Wang bark extracts in tobacco cutworm, Spodoptera litura (Lepidoptera: Noctuidae) is mediated through biochemical responses and pathological damageeng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractSpodoptera litura is a severe polyphagous insect pest, causing extensive damage to agricultural crops all over the world. The present study was undertaken to investigate the response of S. litura to polarity gradient fractions of Pachygone laurifolia bark extract. The fraction IV and V of P. laurifolia bark possess a significant anti-feedant activity and growth inhibitory effect on S. litura. The active fractions inhibited carboxylesterase activity, whereas no significant difference in total protein content was observed. Alteration in glutathione S- transferase activity and inhibition of acetylcholinesterase activity were noted on exposure of fraction V. The histopathological studies of the midgut region of the exposed larvae exhibited structural loss, damage in peritrophic membrane and longitudinal muscles, disintegration of goblet cells, oedema and lysis of the epithelial cells compared to control even at minimum concentration of exposure. Gas chromatographic – mass spectrometric analysis was carried out to ascertain the active constituents with the anti-insect properties. Overall, our findings revealed that fractions of P. laurifolia has significant anti-feedant activity mediated through biochemical mechanisms involving detoxification, oxidative stress and pathological damage. This plant extract has the potential to be developed as biopesticide formulation.eng
dcterms.accessRightsopen access
dcterms.creatorPaul, Alina
dcterms.creatorMS, Suprima
dcterms.creatorRavindran, Jayaraj
dcterms.source.identifiereissn:2363-6033
dcterms.source.issueNo. 2
dcterms.source.journalJournal of Agriculture and Rural Development in the Tropics and Subtropics (JARTS)eng
dcterms.source.pageinfo197-208
dcterms.source.volumeVol. 125
kup.iskupfalse

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Vol 125, No 2 (2024)