Počet záznamů: 1
Differentiation between activity of digestive enzymes of .i.Brachionus calyciflorus./i. and extracellular enzymes of its epizooic bacteria
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SYSNO ASEP 0338890 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Differentiation between activity of digestive enzymes of Brachionus calyciflorus and extracellular enzymes of its epizooic bacteria Tvůrce(i) Štrojsová, Martina (BC-A)
Ahlrichs, W.H. (DE)Zdroj.dok. Journal of Limnology. - : PagePress - ISSN 1129-5767
Roč. 68, č. 2 (2009), s. 409-412Poč.str. 4 s. Jazyk dok. eng - angličtina Země vyd. IT - Itálie Klíč. slova rotifers ; phosphatase ; beta-N-acetylhexosaminidase ; enzyme localization Vědní obor RIV EG - Zoologie CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000268778300023 DOI 10.3274/JL09-68-2-n1 Anotace The rotifer Brachionus calyciflorus was examined by scanning electron microscopy (SEM) for surface-attached, i.e. epizootic, bacteria to ascertain their specific localization and thus find out if we could discern between rotifer and bacterial enzyme activity. The lorica of B. calyciflorus was colonized by one distinct type of bacteria, which originated from the algal culture used for rotifer feeding. The corona, posterior epidermis and foot of all inspected individuals were always without attached bacteria. The density of the attached bacteria was higher with the increasing age of B. calyciflorus. We hypothesize that epizooic bacteria may produce the ectoenzymes phosphatases and beta-N-acetylhexosaminidases on the lorica, but not on the corona of B. calyciflorus. Since enzyme activities of epizooic bacteria may influence the values and interpretation of bulk rotifer enzyme activities, we should take the bacterial contribution into account. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2010
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