Cross Index | Chloroherpeton thalassium |
SuperSet | Prokaryote, Eubacteria Anoxygenic Phototrophic Bacteria |
Compare | Purple Bacteria
Green Bacteria
Anaerobic chemotropic Erythrobacter longus, |
Contrast | Oxygenic Phototrophic Bacteria Archaea |
Subset |
Morphology | Chloroherpeton thalassium |
CELLULAR |
Staining | Gram-negative. |
Morphology | Long rods, 8-20 x about 1 um. Cells separate promptly after division, and no septa are seen in each unit (Cells tend to grow in clumps and produce some extracellular slime |
Motility | Gliding motility, about 10 um min-1 at 20`C. Cells flex through up to 180`. |
Specialized structures | . Cultures and cell material are green. Photosynthetic pigments are located in the cytoplasmic membrane and chlorosomes which underlie and are attached to the cytoplasmic membrane |
Division |
COLONIAL |
Solid surface |
Liquid |
Growth Parameters | Chloroherpeton thalassium |
PHYSIOLOGICAL |
Tropism | obligately phototrophic |
Oxygen | Strictly anaerobic |
pH | Optimum pH: 6.8-7.2. |
Temperature | Optimum temperature: 25`C; maximum temperature: about 30`C. |
Requirements | Sulfide and bicarbonate are required for growth. Growth yield slightly increased by acetate, propionate, malate, succinate or glutamate but not by glucose, fructose or casamino acids |
Products | During sulfide oxidation, elemental sulfur is formed outside the cells and only slowly oxidized further to sulfate. |
Enzymes | bacteriochlorophyll c and y-carotene are the main photosynthetic pigments |
Unique features |
ENVIRONMENTAL |
Habitat | |
Lifestyle | |
Pathogenicity |
Distribution |
Genome | Chloroherpeton thalassium |
G+C Mol % | 45.0-48.2 (Tm) |
Reference | Chloroherpeton thalassium |
First citation | Gibson,J., N.Pfennig and J.
B.Waterbury 1985 In Validation List No. 17. IJSB
35:223-225 Effective publication Gibson,J., N.Pfennig and J.B.Waterbury .1984. Chloroherpton thalassium gen. nov. et spec. nov., a non filamentous, flexing and gliding green sulfur bacterium Arch Microbiol 138: 96-101 |
The Prokaryotes | |
Bergey's Systematatic | p1694 J. Gibson |
Bergey's Determinative | p 361 |
References |