Chlorogloepsis

Cross Index	Chlorogloepsis
SuperSet	Prokaryote, Eubacteria Oxygenic Phototrophic Bacteria
Compare	Cyanobacteria Chroococcales: Chamaesiphon, Cyanothece, Gloeobacter, Gleocapsa, Gloethece, Microcystis, Myxobaktron, Synechococcus, Synechocystis Pleurocapsales Chroococcidiopsis, Dermocarpa, Dermocarpella, Myxosarcina, Pleurocapsa, Xenococcus Oscillatoriales Arthrospira, Crinalium, Lyngbya, Microcoleus, Oscillatoria, Pseudoanabaena, Spirulina, Starria, Trichodesmium Nostocales Anabaena, Aphanizamenon, Cylindrospermum, Nodularia, Nostoc, Scytonema, Calothrix Stigonematales Chlorogloepsis, Fischerella, Geitleria, Stigonema Prochlorales Procloron didemni, Prochlorothrix hollandica
Contrast	Anoxygenic Phototrophic Bacteria Archaea
Subset

Morphology

Chlorogloepsis

CELLULAR

Staining
Morphology
Motility
Specialized structures	The filamentous nature of this organism is often unclear, except in hormogonia. Hormogonia are composed of short chains of cylindrical or barrel-shaped cells which, after ceasing motility, enlarge to become spherical cells (Heterocysts develop in both intercalary and terminal positions when levels of combined nitrogen are low. Growth continues with cell divisions in more than one plane), so that multiseriate trichomes develop. The filamentous nature of the organism is usually lost, however, since the growing mass of cells commonly fragments into clusters or amophos aggregates of cells, generally within a mucilaginous sheath (Rippka et al. 1979) (Hormogonia arise from such aggregates. Uneven (asymmetric) divisions of vegetative cells occur; small heterocysts occur when strains are deprived of combined nitrogen (Foulds and Carr, 1981). Masses of vegetative cells may also enlarge to form thicker-walled cells (akinetes). Akinete germination takes place with division in several planes and the shedding of the extra well layers (Rippka et al. 1979). Synaptic "pore channels", common in many genera in Subsection V, are not present

Division

COLONIAL

Solid surface

Liquid

Growth Parameters

Chlorogloepsis

PHYSIOLOGICAL

Tropism	Both strains included by Rippka et al. (1979) are facultative, aerobic chemoheterotrophs utilizing sucrose best but also glucose, fructose and ribose.
Oxygen
pH
Temperature
Requirements
Products	Phycoerythrocyanin is snythesized by both strains
Enzymes
Unique features

ENVIRONMENTAL

Distribution

Genome

Chlorogloepsis

G+C Mol %

of two strains are 42.1 and 42.9 (Herdman et al. 1979a).

The genome sizes are 4.20 and 5.24 x 10⁹ daltons (Herdman et al. 1979b).

Reference	Chlorogloepsis
First citation	Mitra, A.K. and D.C. Pandey. 1966. On a new genus of the blue-green alga Chlorogloepsis with remarks on the heterocysts in the alga. Phykos 5: 106-114
The Prokaryotes
Bergey's Systematatic	p1794 R.W. Castenholz
Bergey's Determinative	p 413
References