Ultrastructure of unicellular red algae

Ultrastructures of the Golgi Body and Cell Surface in Cyanidioschyzon merolae.

“…The Golgi apparatus in C. merolae is arranged around the periphery of the cell nucleus. Since the transfer vesicles could be seen between the cell nucleus and Golgi cisternae, the Golgi bodies in C. merolae might differ from those in G. sulphuraria (Ueda and Yokochi 1981) and be similar to those in Dixoniella grisea, which present a third type of Golgi association (Broadwater and Scott 1994).…”

“…Golgi Apparatus Broadwater and Scott (1994) summarized the characteristics of cells in various unicellular red algae. Golgi bodies are observed in many red algae, as well as in other eukaryotes.…”

Bangiophytes: From one Class to Six; Where Do We Go from Here?

“…However, some taxa have a cup-shaped plastid (Cyanidiophyceae), or a complex, lobed plastid +/-pyrenoids (Compsopogonophyceae) ( Fig. 1; Gantt et al, 1986;Broadwater and Scott, 1994;West et al, 2007a). Pit connections are rare but have been noted in some groups, including the conchocelis stage in members of the Bangiophyceae s.s. and Rhodochaete (Ueki et al, 2008 and references therein).…”

“…Members of this phylum share a set of characteristics that do not occur together in other eukaryotes. For example, this group lacks flagellated stages and basal bodies, possesses a two-membrane-bound plastid with unstacked thylakoids but lacking chlorophyll b or c, and contains photosynthetic reserves stored as floridean starch (Gantt et al, 1986;Garbary and Gabrielson, 1990;Broadwater and Scott, 1994;Bhattacharya and Medlin, 1995). Traditionally, the members of the Rhodophyta have been divided into two groups (Table 1) -the "florideophytes" and the "bangiophytes," with the latter name used to identify the early diverging red algae from which the former group has evolved.…”

Ultrastructure of cell division inAgardhiella subulata(Gigartinales, Rhodophyta)

“…Distinguishing characteristics were found in each of these orders with differences sometimes noted among members of the same order, e.g. Porphyridiales (Scott et aI., 1992;Broadwater & Scott, 1994). The challenge has been to assess the importance of the different characters examined and to relate those differences to rhodophytan taxonomy.…”