Quantitative analysis of hemocyte morphological abnormalities associated with Campoletis sonorensis parasitization
نویسندگان
چکیده
منابع مشابه
Quantitative analysis of hemocyte morphological abnormalities associated with Campoletis sonorensis parasitization
Endoparasitoids of arthropods evoke host cellular immune responses that result in hemocytic encapsulation of the endoparasitoid, unless these responses are disrupted by the parasite. Our interest has focused on mutualistic viruses found in some hymenopteran endoparasitoids that disrupt hemocyte function and prevent encapsulation. Specifically, the Campoletis sonorensis polydnavirus interacts wi...
متن کاملPromoter analysis of a cysteine-rich Campoletis sonorensis polydnavirus gene.
Promoter activity of the Campoletis sonorensis polydnavirus (CsPDV) WHv1.6 gene was analysed by transient transfection assays in insect cell culture using constructs expressing the CAT gene. Deletions of the WHv1.6 gene promoter were used to define promoter regions important for expression. Progressive deletion of the regions upstream of the TATA box reduced the promoter activity, whereas delet...
متن کاملMolecular analysis of Campoletis sonorensis virus DNA in the lepidopteran host Heliothis virescens.
Nucleic acid hybridization techniques were used to analyse the fate of Campoletis sonorensis virus (CsV) DNAs in naturally parasitized and virus-injected Heliothis virescens larvae. Viral DNA persisted in injected H. virescens larvae from 0 to 10 days post-injection but no increase in the amount of viral DNA could be detected. Similarly, no increase in the amount of viral DNA was detected in na...
متن کاملIsolation and characterization of a member of the cysteine-rich gene family from Campoletis sonorensis polydnavirus.
The endoparasitic wasp Campoletis sonorensis injects a symbiotic polydnavirus into its host Heliothis virescens. Viral gene expression protects the wasp egg and larva from encapsulation by host haemocytes. Three related C. sonorensis polydnavirus (CsPDV) genes, which are expressed in parasitized H. virescens, have been previously isolated and grouped into a cysteine-rich gene family. In this re...
متن کاملCharacterization of Campoletis sonorensis ichnovirus segment I genes as members of the repeat element gene family.
Campoletis sonorensis ichnovirus (CsIV) is a symbiotic virus associated with the endoparasitic wasp C. sonorensis. The virus is injected into the wasp's host, Heliothis virescens, during oviposition. One CsIV gene has been identified as a repeat element (rep) gene and encodes a ubiquitous imperfectly conserved 540 bp sequence. We report the sequencing and mapping of a rep-containing segment, se...
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ژورنال
عنوان ژورنال: Journal of Insect Science
سال: 2004
ISSN: 1536-2442
DOI: 10.1093/jis/4.1.11