Gemmatimonas aurantiaca

SEM image of Gemmatimonas aurantiaca. Bar = 1 micrometer.

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Prokaryota
Superregnum: Bacteria
Group: FCB group
Phylum: Gemmatimonadetes
Classis: Gemmatimonadetes
Ordo: Gemmatimonadales
Familia: Gemmatimonadaceae
Genus: Gemmatimonas
Species: G. aurantiaca

Nome

Gemmatimonas aurantiaca, Zhang et al., 2003

Morphology

Rod-shaped, gram-negative. Reproduces by budding.

Genetics

The 16S rRNA sequence places this organism into its own phyla (19% sequence divergence). This new phyla originally contained only clones obtained from environmental sources with no cultured isolates. The original phyla was named candidate division BD or KS-B.

Physiology

Able to utilize a limited range of carbon sources, such as yeast extract, polypepton, succinate, acetate, gelatin and benzoate. Neisser staining is positive and 4,6-diamidino-2-phenylindole-stained cells displayed a yellow fluorescence, indicative of polyphosphate inclusions. Menaquinone 9 is the major respiratory quinone. The cellular fatty acids of the strain were mainly composed of iso-C15 : 0, C16 : 1 and C14 : 0. The G+C content of the genomic DNA was 66 mol%.

Ecology

Isolated from wastewater. Growth range is 25 to 35 °C with an optimum temperature of 30 °C. The pH range for growth was 6.5 to 9.5, with an optimum of pH 7.0.

Riferimenti

Zhang, H., Sekiguchi, Y., Hanada, S., Hugenholtz, P., Kim, H., Kamagata, Y. and Nakamura, K.: "Gemmatimonas aurantiaca gen. nov., sp. nov., a Gram-negative, aerobic, polyphosphate-accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov." Int. J. Syst. Evol. Microbiol. 53 (2003): 1155–1163.

Collegamenti

• Gemmatimonas aurantiaca – Taxon details on National Center for Biotechnology Information (NCBI).
• European Nucleotide Archive