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The Pelagibacterales are an order in the Alphaproteobacteria composed of free-living marine bacteria that make up roughly one in three cells at the ocean's surface. Overall, members of the Pelagibacterales are estimated to make up between a quarter and a half of all prokaryotic cells in the ocean.
Sep 16, 2010 · Pelagibacter ubique, strain HTCC1062, is significantly known to be one of smallest and simplest, self-replicating, and free living cell. It is part of the SAR11 clade, which are small, heterotrophic alphaproteobacteria, equaling to ~25% of all microbial plankton cells.
Feb 1, 2017 · The SAR11 clade of heterotrophic marine alphaproteobacteria, which is now widely accepted as the most successful clade of organisms on Earth, includes the bacterium “Candidatus Pelagibacter ubique” (herein referred to as Pelagibacter).
- Xiaowei Zhao, Cindi L. Schwartz, Jason Pierson, Stephen J. Giovannoni, J. Richard McIntosh, Daniela ...
- 10.1128/AEM.02807-16
- 2017
- 2017/02/02
Oct 25, 2012 · Following the first cultivation of a SAR11 bacterium, ‘ Candidatus Pelagibacter ubique’ strain HTCC1062 ( Ca. P. ubique) in 2002, unusual nutritional requirements were identified for reduced...
- Paul Carini, Laura Steindler, Laura Steindler, Sara Beszteri, Sara Beszteri, Stephen J Giovannoni
- 2013
Jan 17, 2017 · To illuminate this issue, we used cryo-electron tomography to study "Candidatus Pelagibacter ubique" strain HTCC1062, a member of the SAR11 clade. Our results revealed its cellular dimensions and details of its intracellular organization.
- Xiaowei Zhao, Cindi L. Schwartz, Jason Pierson, Stephen J. Giovannoni, J. Richard McIntosh, Daniela ...
- 2017
May 2, 2024 · Pelagibacterales, known as the SAR11 clade, are small free-living marine bacteria that account for 20–50% of planktonic cells in the oceans and are crucial components of marine biogeochemical...
P. ubique is characterized by its extremely small genome size (1,308,759 bp), the smallest of all free-living organisms (Giovannoni et al., 2005). The genome of P. ubique contains the bare essentials for life, consequently these bacteria seem to lack secondary metabolite genes.
