Classification and Ultrastructure of Hemocytes in the Tunicate Halocynthia roretzi (Ascidiacea: Pyuridae)
نویسندگان
چکیده
منابع مشابه
First report on histology and ultrastructure of an intrahemocytic paramyxean parasite (IPP) from tunicate Halocynthia roretzi in Korea.
In 2004, epizootiological studies were conducted on mass mortalities of tunicates Halocynthia roretzi in Goje, Korea. The clinical characteristics of infected H. roretzi were weakness of the tunic, loss of elasticity, and finally death involving a rupture of the tunic. Histological studies revealed severe hemocyte infiltration in the connective tissue surrounding the intestine and mantle of inf...
متن کاملHemocytes release phenoloxidase upon contact reaction, an allogeneic interaction, in the ascidian Halocynthia roretzi.
Contact reaction is the morphological expression of allogeneic recognition by hemocytes in the ascidian, Halocynthia roretzi; namely they undergo an exocytotic burst upon contact with non-self (allogeneic) hemocytes in vitro. We have found that contact reaction is accompanied by a burst of cyanide-insensitive oxygen consumption that, unlike exocytotic events of mammalian phagocytes, is Ca(2+)-d...
متن کاملHalocyntin and papillosin, two new antimicrobial peptides isolated from hemocytes of the solitary tunicate, Halocynthia papillosa.
We report here the screening of five marine invertebrate species from two taxa (tunicates and echinoderms) for the presence of cationic antimicrobial peptides (AMP) in defence cells (hemocytes). Antimicrobial activities were detected only in the two tunicates Microcosmus sabatieri and Halocynthia papillosa. In addition, we report the isolation and characterization of two novel peptides from H. ...
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ژورنال
عنوان ژورنال: Korean Journal of Fisheries and Aquatic Sciences
سال: 2012
ISSN: 0374-8111
DOI: 10.5657/kfas.2012.0480