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Reproduction and baeocyte formation in two species of Dermocarpella (Cyanophyceae)

Published online by Cambridge University Press:  08 October 2002

GUSTAVO MONTEJANO  and
HILDA LEÓN-TEJERA
GUSTAVO MONTEJANO
Affiliation:
Laboratorio de Ficología, UNAM, AP 70-620, Coyoacán 04510, Mexico DF
HILDA LEÓN-TEJERA
Affiliation:
Herbario, Facultad de Ciencias, UNAM, AP 70-620, Coyoacán 04510, Mexico DF
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Abstract

The reproductive stages of Dermocarpella gardneri and D. stellata, which have been reported only once, are described. Formation of baeocytes occurs by cellular divisions that are parallel to the substratum, followed by a series of anticlinal radial divisions. In some cases in D. gardneri, the superior cell, resulting from the first division parallel to the substratum, is liberated prior to radial divisions, and these probably represent the ‘macrogonidia’ originally described by Lemmermann for D. hemisphaerica. The baeocytes are released through a circular apical pore, which develops after the formation of a papilla that eventually dissolves to form a pore.

Keywords

baeocyteChroococcalesCyanobacteriaCyanophyceaeDermocarpella gardneriDermocarpella stellataMexicomultiple fissionreproduction
Type
Research Article
Information
European Journal of Phycology , Volume 37 , Issue 3 , August 2002 , pp. 323 - 327
Copyright
© 2002 British Phycological Society

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