Zobrazeno 1 - 10
of 243
pro vyhledávání: '"Stephen J Giovannoni"'
Autor:
Charlotte A. Eckmann, Charles Bachy, Fabian Wittmers, Jan Strauss, Leocadio Blanco-Bercial, Kevin L. Vergin, Rachel J. Parsons, Raphael M. Kudela, Rod Johnson, Luis M. Bolaños, Stephen J. Giovannoni, Craig A. Carlson, Alexandra Z. Worden
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-15 (2024)
Abstract Ocean spring phytoplankton blooms are dynamic periods important to global primary production. We document vertical patterns of a diverse suite of eukaryotic algae, the prasinophytes, in the North Atlantic Subtropical Gyre with monthly sampli
Externí odkaz:
https://doaj.org/article/dc4341c2a49644e190f9b9d8affbc296
Publikováno v:
PLoS ONE, Vol 8, Iss 12, p e83383 (2013)
Bacteria in the class Alphaproteobacteria have a wide variety of lifestyles and physiologies. They include pathogens of humans and livestock, agriculturally valuable strains, and several highly abundant marine groups. The ancestor of mitochondria als
Externí odkaz:
https://doaj.org/article/f49110c088a54bc099671559b60f8f73
Publikováno v:
PLoS ONE, Vol 6, Iss 5, p e19725 (2011)
Previous studies have demonstrated that Candidatus Pelagibacter ubique, a member of the SAR11 clade, constitutively expresses proteorhodopsin (PR) proteins that can function as light-dependent proton pumps. However, exposure to light did not signific
Externí odkaz:
https://doaj.org/article/e833de8be40c4a4a9e1034d89c1908eb
Autor:
Jing Sun, Laura Steindler, J Cameron Thrash, Kimberly H Halsey, Daniel P Smith, Amy E Carter, Zachary C Landry, Stephen J Giovannoni
Publikováno v:
PLoS ONE, Vol 6, Iss 8, p e23973 (2011)
The SAR11 Alphaproteobacteria are the most abundant heterotrophs in the oceans and are believed to play a major role in mineralizing marine dissolved organic carbon. Their genomes are among the smallest known for free-living heterotrophic cells, rais
Externí odkaz:
https://doaj.org/article/263c57c5be024931b2119ea9832a64b2
Autor:
Olivia U Mason, Tatsunori Nakagawa, Martin Rosner, Joy D Van Nostrand, Jizhong Zhou, Akihiko Maruyama, Martin R Fisk, Stephen J Giovannoni
Publikováno v:
PLoS ONE, Vol 5, Iss 11, p e15399 (2010)
The gabbroic layer comprises the majority of ocean crust. Opportunities to sample this expansive crustal environment are rare because of the technological demands of deep ocean drilling; thus, gabbroic microbial communities have not yet been studied.
Externí odkaz:
https://doaj.org/article/b2bfc91f3e40459797d2c52dcd57a50a
Autor:
Daniel P Smith, Joshua B Kitner, Angela D Norbeck, Therese R Clauss, Mary S Lipton, Michael S Schwalbach, Laura Steindler, Carrie D Nicora, Richard D Smith, Stephen J Giovannoni
Publikováno v:
PLoS ONE, Vol 5, Iss 5, p e10487 (2010)
Iron is recognized as an important micronutrient that limits microbial plankton productivity over vast regions of the oceans. We investigated the gene expression responses of Candidatus Pelagibacter ubique cultures to iron limitation in natural seawa
Externí odkaz:
https://doaj.org/article/7a15eddc667a4eae9da9e1fd6f02ed38
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-13 (2023)
Abstract Bacteria of the SAR202 clade, within the phylum Chloroflexota, are ubiquitously distributed in the ocean but have not yet been cultivated in the lab. It has been proposed that ancient expansions of catabolic enzyme paralogs broadened the spe
Externí odkaz:
https://doaj.org/article/cf85c1b1997a4bd3b888633959be1412
Autor:
Sebastian L. Singleton, Edward W. Davis, Holly K. Arnold, An Mei Y. Daniels, Susanne M. Brander, Rachel J. Parsons, Thomas J. Sharpton, Stephen J. Giovannoni
Publikováno v:
Frontiers in Microbiology, Vol 14 (2023)
Plastic waste accumulation in marine environments has complex, unintended impacts on ecology that cross levels of community organization. To measure succession in polyolefin-colonizing marine bacterial communities, an in situ time-series experiment w
Externí odkaz:
https://doaj.org/article/de87d42fa6bc477dba3095e816f228a7
Autor:
Luis M. Bolaños, Karen Tait, Paul J. Somerfield, Rachel J. Parsons, Stephen J. Giovannoni, Timothy Smyth, Ben Temperton
Publikováno v:
ISME Communications, Vol 2, Iss 1, Pp 1-11 (2022)
Abstract SAR11 bacteria dominate the surface ocean and are major players in converting fixed carbon back to atmospheric carbon dioxide. The SAR11 clade is comprised of niche-specialized ecotypes that display distinctive spatiotemporal transitions. We
Externí odkaz:
https://doaj.org/article/c8eb17f9cd5f44db8dcac27c88f9b439
Autor:
Fabian Wittmers, David M. Needham, Elisabeth Hehenberger, Stephen J. Giovannoni, Alexandra Z. Worden
Publikováno v:
mSystems, Vol 7, Iss 5 (2022)
ABSTRACT For the abundant marine Alphaproteobacterium Pelagibacter (SAR11), and other bacteria, phages are powerful forces of mortality. However, little is known about the most abundant Pelagiphages in nature, such as the widespread HTVC023P-type, wh
Externí odkaz:
https://doaj.org/article/940c164a50754dbda5de48129003fe5b