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Cochlodinium heterolobatum n.sp.: Structure and Some Cytophysiological Aspects *
Author(s) -
SILVA ESTELA DE SOUSA E
Publication year - 1967
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1967.tb02072.x
Subject(s) - dinoflagellate , biology , sulcus , nucleus , anatomy , torsion (gastropod) , zoology , microbiology and biotechnology , botany
SYNOPSIS. Structure and morphogenesis, and cytochemical data on Cochlodinium heterolobatum , a new species of unarmored dinoflagellate, were derived from living and fixed material from culture. C. heterolobatum is characterized by the torsion of the girdle which descends in a left‐hand spiral 1.8 turns; the sulcus having a torsion of 0.8 turn; a sulcus loop in the epicone; a tongue‐shaped lobe in the right hypocone; nucleus in the epicone; and a stigma in the left epicone. Trichocysts and behavior of the nucleus during typical and atypical divisions are described in cells from cultures of different ages. A small form with the specific characters was found. Intracellular bacteria were seen and their growth followed in individuals from cultures of different ages. A possible relationship between those bacteria and the accumulation of metabolites inside old cells is discussed.