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Darwiniana, nueva serie
Print version ISSN 0011-6793On-line version ISSN 1850-1699
Abstract
SUNESEN, Inés et al. FIRST RECORD OF BIECHELERIA BREVISULCATA (SUESSIACEAE, DINOPHYCEAE) FROM ARGENTINA. Darwiniana, nueva serie [online]. 2023, vol.11, n.1, pp.470-484. ISSN 0011-6793. http://dx.doi.org/10.14522/darwiniana.2023.111.1138.
Sunesen, I.; F. Rodríguez, J. A. Tardivo Kubis, D. Aguiar Juárez & E. A. Sar. 2023. First record of Biecheleria brevisulcata (Suessiaceae, Dinophyceae) from Argentina. Darwiniana, nueva serie 11(1): 337-346. In the framework of a phytoplankton and biotoxin monitoring program implemented since 2008 in marine coastal waters of the Buenos Aires Province (Argentina), the strain LPCc022 of a nanoplanktonic, thin-walled woloszynskioid dinoflagellate, has been isolated. LSU rDNA-based phylogeny showed that the isolated strain belonged to a molecular clade corresponding with of Biecheleria brevisulcata. B. brevisulcata can be differentiated by light microscopy from the species B. baltica, B. halophila, B. cincta and B. tirezensis based on the location of the nucleus in the cell, the size range of the cells, and the environments they inhabit. This is the first report of the genus Biecheleria and the species B. brevisulcata in Argentina and overall South-western Atlantic waters.
Keywords : Biecheleria; molecular characterization; morphological characterization; phylogeny; Suessiaceae..