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Interspecific competition between two endoparasitoids Cotesia vestalis (Hymenoptera: Braconidae) and Oomyzus sokolowskii (Hymenoptera: Eulophidae)

✍ Scribed by Su-Fen Bai; Xin Li; Xue-Xin Chen; Jia-An Cheng; Jun-Hua He

Book ID: 101608671
Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 230 KB
Volume: 76
Category: Article
ISSN: 0739-4462
DOI: 10.1002/arch.20399

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✦ Synopsis

Two endoparasitoids, Cotesia vestalis and Oomyzus sokolowskii, parasitize the same host, larvae of Plutella xylostella. These two species have evolved different parasitization strategies. O. sokolowskii expresses a single factor, venom, and exerts virtually no detrimental effects on the development of its host. C. vestalis, on the other hand, injects polydnavirus (PDV) and venom during oviposition, and teratocytes are released into the host's hemolymph after egg hatching. Parasitization suppresses host immune reactions and redirects its developmental program. Because both these species parasitize

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