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Electron‐Microscopic Demonstration of Plastids in Polytoma *
Author(s) -
LANG NORMA J.
Publication year - 1963
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.1550-7408.1963.tb01685.x
Subject(s) - plastid , chlamydomonas , flagellum , biology , basal body , mutant , chloroplast , microbiology and biotechnology , biophysics , botany , genetics , gene
SYNOPSIS. The subcortical network identified as a leucoplast in Polytoma by some light microscopists actually consists of a system of branching mitochondria. A starch‐bearing plastid which may also contain stigma granules occurs beneath the mitochondrial layer. Tubular profiles in the plastid similar to those seen in a Chlamydomonas mutant may be significant to the hypothesis of the origin of Polytoma from a Chlamydomonas ‐like organism by step‐wise loss of chlorophyll‐synthesizing ability. The basal bodies of the two typical flagella are connected by an additional broad fibril which arches across the anterior papilla.