Morphology of two marine woloszynskioid dinoflagellates, Biecheleria brevisulcata sp. nov. and Biecheleriopsis adriatica (Suessiaceae, Dinophyceae), from Japanese coasts
| Autor: | Mitsunori Iwataki, Chihiro Sarai, Kazuya Takahashi |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Phycologia. 53:52-65 |
| ISSN: | 2330-2968 0031-8884 |
| Popis: | The morphology of two marine woloszynskioid dinoflagellates from the Japanese coast was examined by light, scanning and transmission electron microscopy, and phylogenetic positions were inferred on the basis of partial nuclear-encoded large-subunit ribosomal (r)DNA (D1–D3) sequences. Both species had a single elongate apical vesicle (EAV) on the anterior end, a diagnostic feature of the Suessiaceae, and were identified as Biecheleriopsis adriatica and an undescribed species of Biecheleria. Cells of the undescribed Biecheleria were spherical to ellipsoidal with parietal chloroplasts, conspicuous pyrenoids, an eyespot, and a nucleus located anteriorly. Transmission electron microscope observations revealed penetrations of the thylakoid into the pyrenoid matrix and an eyespot composed of a stack of cisternae containing several brick-like materials (type E). This species had a total of nine to 10 latitudinal series of amphiesmal vesicles (AVs), including three to fo ur epiconal, three cingular, and three hypo... |
| Databáze: | OpenAIRE |
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