Isosphaera pallida ATCC 43644

Names Isosphaera pallida ATCC 43644
Accession numbers NC_014957, NC_014962
Background Isosphaera pallida strain IS1B was isolated from a hot spring in Kah-nee-tah, Oregon, USA. It is the only budding bacterium known to glide and the only heterotrophic bacterium known to be phototactic. Cells are spherical (2.5 to 3 um) in diameter, with cell growth and division occurring by intercalary budding, resulting in filaments. The cells are salmon-colored (caused by carotenoids) and contain gas vesicles. The cells contain numerous pili but no flagella. Under some conditions cells form motile, macroscopic aggregates,or "comets". Aggregation and motility were observed in both the light and the dark, however comets were strongly phototactic. I. pallida has an unusual cell wall ultrastructure and is resistant to beta-lactam antibiotics, suggesting that it does not have a peptidoglycan cell wall, and indeed cells stain Gram-negative but lack an outer membrane (adapted from and PMID 3584067). (EBI Integr8)
Strain ATCC 43644
Complete Yes
Sequencing centre (22-NOV-2010) US DOE Joint Genome Institute, 2800 Mitchell Drive, Walnut Creek, CA 94598-1698, USA
(25-JAN-2011) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method Illumina GAii, Sanger, 454-GS-FLX-Titanium
Isolation site algal mat from Kah-nee-tah Hot Spring in Oregon
Isolation country USA
Number of replicons 2
Gram staining properties Negative
Shape Cocci
Mobility Yes
Flagellar presence No
Number of membranes 2
Oxygen requirements Aerobic
Optimal temperature NA
Temperature range Thermophilic
Habitat Specialized
Biotic relationship Free living
Host name NA
Cell arrangement NA
Sporulation Nonsporulating
Metabolism NA
Energy source NA
Diseases NA
Pathogenicity No