Title: THALLUS MORPHOLOGY AND SPORE FORMATION IN CULTURED <i>ERYTHROCLADIA IRREGULARIS</i> ROSENVINGE (RHODOPHYTA, BANGIOPHYCIDAE)<sup>1</sup>
Abstract: ABSTRACT The discoid thallus of Erythrocladia irregularis is the result of a pattern of cellular divisions expressed by mono‐and endospores; the latter are described for the first time in Erythrocladia. In nutrient enriched growth conditions the discoid thallus becomes a shapeless aggregate of unicells with a wrinkled wall surface, whose plane of division is unpredictable. The cells are able to produce monosporangia with a curved wall or they form eight‐celled endosporangia. Chloroplasts have an internal pyrenoid, as is characteristic of the Erythropeltidaceae. The observation that E. irregularis can form either a colonial cluster of unicells or a discoid thallus would lead to the assignment of the genus to the Porphyridiales; however, since this order is reserved to organisms in which only the unicellular organization can be expressed, it is suggested to maintain Erythrocladia in the Erythropeltidales.
Publication Year: 1987
Publication Date: 1987-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 10
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