6533b827fe1ef96bd1286fc5
RESEARCH PRODUCT
Specific binding of radiolabeled Cry1Fa insecticidal protein from Bacillus thuringiensis to midgut sites in lepidopteran species
Patricia Hernández-martínezJuan FerréBaltasar EscricheCarmen Sara Hernández-rodríguezJeroen Van Riesubject
BioquímicavirusesBiotecnologia agrícolaBacillus thuringiensisHelicoverpa armigeraSpodopteraSpodopteraApplied Microbiology and BiotechnologyOstriniaIodine RadioisotopesHemolysin ProteinsPlagues ControlBacterial ProteinsSpecies SpecificityBacillus thuringiensisExiguaBotanyparasitic diseasesPlaguicidesInvertebrate MicrobiologyAnimalsBinding siteTransport VesiclesBinding SitesEcologybiologyHeliothis virescensBacillus thuringiensis ToxinsMicrovillifungiPlutellabiology.organism_classificationEndotoxinsLepidopteraBiochemistryDigestive SystemProteïnesFood ScienceBiotechnologydescription
ABSTRACT Cry1Fa insecticidal protein was successfully radiolabeled with 125 I-Na. Specific binding to brush border membrane vesicles was shown for the lepidopteran species Ostrinia nubilalis , Spodoptera frugiperda , Spodoptera exigua , Helicoverpa armigera , Heliothis virescens , and Plutella xylostella . Homologous competition assays were performed to obtain equilibrium binding parameters ( K d [dissociation constant] and R t [concentration of binding sites]) for these six insect species.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |