caa a22 4500 378923730 CHVBK 20180305123611.0 cr unu---uuuuu 161128e20040413xx s 000 0 eng 10.1515/BOT.2004.016 doi (NATIONALLICENCE)gruyter-10.1515/BOT.2004.016 Gymnodinium chlorophorum (Dinophyceae) in the Adriatic Sea: electron microscopical observations [Elektronische Daten] [Giorgio Honsell, Laura Talarico] The micromorphology and fine structure of a chlorophyll b-containing green dinoflagellate commonly found along the coasts of the Northern Adriatic Sea (Mediterranean Sea) were re-examined by scanning and transmission electron microscopy. It was identified as Gymnodinium chlorophorum Elbrächter et Schnepf based on ultra-structural features. New details are given about the amphiesmal structure, the flagellar apparatus and mucocysts. The amphiesma consists of two outer membranes, ‘plate' material, pellicular layer, and inner membrane. The cell surface appears to be formed by polygonal amphiesmal vesicles arranged into a honeycomb pattern, and shows a well-marked apical groove describing a counterclockwise elliptic path in the epicone. The flagella emerge from two distinct pores, with the basal bodies lying at an angle of about 120-130°. The longitudinal microtubular root, the transverse striated root and the striated fibrous root connective are present in the arrangement found in other Gymnodinium species. A great number of mucocysts, formed by regularly arranged fibrillar material, fill most of the cell volume. Different stages of mucocyst formation and extrusion are shown. Copyright (c) 2004 by Walter de Gruyter GmbH & Co. KG Hydrobiology nationallicence Mycology, fungi nationallicence Botany & plant sciences nationallicence Honsell Giorgio aut Talarico Laura aut Botanica Marina Walter de Gruyter 47/2(2004-04-13), 152-166 0006-8055 47:2<152 2004 47 botm https://doi.org/10.1515/BOT.2004.016 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/BOT.2004.016 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Honsell Giorgio aut NATIONALLICENCE 700 1- Talarico Laura aut NATIONALLICENCE 773 0- Botanica Marina Walter de Gruyter 47/2(2004-04-13), 152-166 0006-8055 47:2<152 2004 47 botm CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter