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The Freshwater Dinoflagellate Woloszynskia limnetica n. sp. Membrane and Protoplasmic Structures
Author(s) -
BURSA ADAM
Publication year - 1958
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.1550-7408.1958.tb02570.x
Subject(s) - reticulate , dinoflagellate , protoplasm , membrane , biology , botany , ultrastructure , cytoplasm , biophysics , chemistry , microbiology and biotechnology , biochemistry
SYNOPSIS. A new species of a freshwater reticulate dinoflagellate, Woloszynskia limnetica , is described. The membrane structure and the shape of the membrane plates change during cell development. The rod‐shaped mitochondria found among the membrane plates disappear in the adult cells; they constitute a center from which starch grains develop. Mitochondria also occur free in the endoplasm. Different physiological activities appear to be performed by morphologically identical chondriosomes. The stigma changes in different phases of the life cycle. The physicochemical properties of the ectoplasm govern the formation of specific structures of the membrane plates, which in turn determine the taxonomic position.