Serine-containing active center of the trypsin-like protease of crayfish Astacus leptodactylus
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چکیده
منابع مشابه
Ontogeny of osmoregulation in the crayfish Astacus leptodactylus.
Osmoregulation was studied during the postembryonic development of Astacus leptodactylus Eschscholtz 1823 in juvenile stages 1-8 and in adults. Juveniles hatch and later stages develop in freshwater or in moderately saline waters. The time of acclimation from freshwater to a saline medium increased from early juveniles to adults. At all stages, it was longer than in comparable stages of marine ...
متن کاملFreshwater crayfish Astacus leptodactylus (Eschscholtz, 1823) accumulates and depurates copper.
Cu accumulation and depuration in various tissues of the crayfish Astacus leptodactylus was investigated. Adult specimens were exposed to 0.5, 2.5 and 5.0 mg Cu/L under static conditions for three weeks. At the end of the 3rd week the specimens were divided into three groups and left in dechlorinated water for either 1, 2 or 3 weeks for depuration. After 7, 14 and 21 days, four crayfish from ea...
متن کاملTissue distribution and correlation profiles of heavy-metal accumulation in the freshwater crayfish Astacus leptodactylus.
The present work details the analysis of heavy-metal and metalloid concentrations in exoskeleton, gill, hepatopancreas, and abdominal muscle tissues of 60 crayfish (Astacus leptodactylus) specimens collected from Lake Hirfanlı, a dam lake located in Kırşehir (Turkey) with a low metal-contamination profile. Concentrations of 11 metals (aluminum [Al], chromium [Cd], manganese [Mn], cobalt [Co], n...
متن کاملTitration of the Iranian White Spot Virus isolate, on Crayfish Astacus leptodactylus and Penaeus semisulcatus
White Spot Virus (WSV) is currently the most serious viral pathogen of shrimp worldwide it causes mortality up to 100% within 7-10 days in commercial shrimp farms. Infected Indian white shrimp Fenneropenaeus indicus samples were collected from Guatr shrimp site in Sistan and Baluchestan province in south of Iran and WSV infection was confirmed by Nested PCR. WSV was isolated from infected shr...
متن کاملRecovering Turkish narrow clawed crayfish \(Astacus leptodactylus\) populations carry Aphanomyces astaci
Crayfish stocks collapsed in Turkey in mid 1980’s due to crayfish plague epidemics, with up to 25% survival in some cases. The collapsed stocks have then recovered slowly and commercial crayfish fishery was reinitiated gradually within a decade. We examined the prevalence of Aphanomyces astaciDNA in the narrow clawed crayfish (Astacus leptodactylus) collected from two Turkish lakes, Lake İznik ...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1970
ISSN: 0014-5793
DOI: 10.1016/0014-5793(70)80064-3