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dc.contributorVijayabharathi, Rajendranen_US
dc.contributorBhimineni, Ratna Kumarien_US
dc.contributorVadlamudi, Srinivasen_US
dc.contributorSharma, Hari C.en_US
dc.contributorSathyadevi, Palanisamyen_US
dc.contributorGopalakrishnan, Subramaniamen_US
dc.creatorArumugam, Sathyaen_US
dc.date.accessioned2017-04-17T11:00:22Z
dc.date.available2017-04-17T11:00:22Z
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_US
dc.identifierhttp://oar.icrisat.org/id/eprint/9058en_US
dc.identifier.citationSathya Arumugam, Rajendran Vijayabharathi, Ratna Kumari Bhimineni, Srinivas Vadlamudi, Hari C. Sharma, Palanisamy Sathyadevi, Subramaniam Gopalakrishnan. (29/2/2016). Assessment of a diketopiperazine, cyclo(Trp-Phe) from Streptomyces griseoplanus SAI-25 against cotton bollworm, Helicoverpa armigera (Lepidoptera: Noctuidae). Applied Entomology and Zoology, 51 (1), pp. 11-20.en_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/6788
dc.description.abstractMicroorganisms produce a range of metabolites with varying pest control properties. With this concept, we earlier identified 15 Streptomyces spp. strains with insecticidal activity against Helicoverpa armigera (Hübner), Spodoptera litura (Fabricius), and Chilo partellus (Swinhoe). In recent studies, we evaluated an insecticidal compound purified from the extracellular extract of S. griseoplanus SAI-25 by bioactivity-guided fractionation against H. armigera. Spectral studies by infrared (IR), nuclear magnetic resonance (NMR), and electron spray ionization mass spectroscopy (ESI-MS) confirmed that the purified compound was cyclo(Trp-Phe) of the diketopiperazines class. Cyclo(Trp-Phe) exhibited antifeedant (70 %), larvicidal (67 %), and pupicidal (59 %) action against H. armigera in a dose-dependent manner. The lethal dose for 50 % of the group (LD50) and LD90 values for larvicidal effect were 619 and 2750 ppm, respectively. In addition, the purified compound prolonged larval (10.3–11.1 days) and pupal (10.9–11.8 days) periods compared with the untreated control (larval duration 9.8 days, pupal duration 10.6 days). This is the first report on the presence and biological activity of cyclo(Trp-Phe) isolated from the genus Streptomyces.en_US
dc.formatPDFen_US
dc.languageenen_US
dc.publisherSpringer (part of Springer Nature) (Springer Open Choice Hybrid Journals)en_US
dc.rightsCC-BY-NC-4.0en_US
dc.sourceApplied Entomology and Zoology;51,(2015) Pagination 11,20en_US
dc.subjectdiketopiperazineen_US
dc.subjectcyclo(trp-phe)en_US
dc.subjectCottonen_US
dc.titleAssessment of a diketopiperazine, cyclo(Trp-Phe) from Streptomyces griseoplanus SAI-25 against cotton bollworm, Helicoverpa armigera (Lepidoptera: Noctuidae)en_US
dc.typeJournal Articleen_US
dcterms.available2015-10-05en_US
dcterms.extent11-20en_US
dcterms.issued2016-02-29en_US
cg.creator.idGopalakrishnan, Subramaniam: 0000-0003-4053-7016en_US
cg.subject.agrovocassessmenten_US
cg.subject.agrovocpest managementen_US
cg.subject.agrovochelicoverpa armigeraen_US
cg.subject.agrovocstreptomycesen_US
cg.contributor.centerInternational Crops Research Institute for the Semi-Arid Tropics - ICRISATen_US
cg.contributor.centerNational Chiao Tung University - NCTUen_US
cg.contributor.crpCGIAR Research Program on Grain Legumes - GLen_US
cg.contributor.funderCGIAR System Organization - CGIARen_US
cg.date.embargo-end-dateTimelessen_US
cg.coverage.regionGlobalen_US
cg.contacts.gopalakrishnan@cgiar.orgen_US
cg.identifier.doihttps://dx.doi.org/10.1007/s13355-015-0366-3en_US
cg.isijournalISI journalen_US
dc.identifier.statusTimeless limited accessen_US
mel.impact-factor0.857en_US
cg.issn0003-6862en_US
cg.journalApplied Entomology and Zoologyen_US
cg.issue1en_US
cg.volume51en_US


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