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CULTURE STUDY OF REPRODUCTIVE CYCLES AND SYSTEMATICA IN MOUGEOTIA TRANSEAUI (CHLOROPHYTA) 1, 2
Author(s) -
Kennedy Frances G. R.,
Hoshaw Robert W
Publication year - 1978
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1978.tb02466.x
Subject(s) - homothallism , biology , protoplast , sexual reproduction , botany , strain (injury) , genetics , mating type , anatomy , gene
Asexual and sexual reproductive cyries are described and illustrated for a cultured homothallic strain of Mougeotia transeaui Collins. Reproduction is b y aplanospores and zygospores. Aplanospore formation precedes zygospore formation and continues longer with regreening of older cultures occurring regularly from precocious germination of aplanospores. Aplanospores typically form when most of the protoplast moves into the central swollen region of a cell and two new cross walls form to delimit an aplanosporangium. Conjugation is scalariform without the movement and fusion of well‐organized gametes. During zygospore maturation, three new cross walls form in the receptive gametangium and conjugation tube to produce a zygosporangium .