Bacterial dimethylsulfoniopropionate degradation genes in the oligotrophic north pacific subtropical gyre.

Applied and Environmental Microbiology
Vanessa A VaraljayM A Moran

Abstract

Dimethylsulfoniopropionate (DMSP) is an organic sulfur compound that is rapidly metabolized by marine bacteria either by cleavage to dimethylsulfide (DMS) or demethylation to 3-methiolpropionate. The abundance and diversity of genes encoding bacterial DMS production (dddP) and demethylation (dmdA) were measured in the North Pacific subtropical gyre (NPSG) between May 2008 and February 2009 at Station ALOHA (22°45'N, 158°00'W) at two depths: 25 m and the deep chlorophyll maximum (DCM; ∼100 m). The highest abundance of dmdA genes was in May 2008 at 25 m, with ∼16.5% of cells harboring a gene in one of the eight subclades surveyed, while the highest abundance of dddP genes was in July 2008 at 25 m, with ∼2% of cells harboring a gene. The dmdA gene pool was consistently dominated by homologs from SAR11 subclades, which was supported by findings in metagenomic data sets derived from Station ALOHA. Expression of the SAR11 dmdA genes was low, with typical transcript:gene ratios between 1:350 and 1:1,400. The abundance of DMSP genes was statistically different between 25 m and the DCM and correlated with a number of environmental variables, including primary production, photosynthetically active radiation, particulate DMSP, and DMS con...Continue Reading

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Citations

Feb 7, 2016·Current Opinion in Chemical Biology·Andrew Wb JohnstonJonathan D Todd
Dec 31, 2014·Proceedings of the National Academy of Sciences of the United States of America·Bryndan P DurhamMary Ann Moran
Jun 12, 2013·Environmental Microbiology Reports·Alon Philosof, Oded Béjà
Feb 24, 2015·The ISME Journal·Vanessa A VaraljayMary Ann Moran
Nov 28, 2014·Microbiology and Molecular Biology Reviews : MMBR·Haiwei Luo, Mary Ann Moran
Jun 24, 2016·Environmental Microbiology Reports·Andrew S BurnsMary Ann Moran
Jun 17, 2016·Environmental Microbiology·Björn BrindefalkBirgitta Bergman
Feb 15, 2019·Environmental Microbiology·Brent NowinskiMary Ann Moran
Feb 14, 2012·Environmental Microbiology·Naomi Marcil LevineMary Ann Moran
Jan 10, 2019·Frontiers in Microbiology·Jingli LiuXiao-Hua Zhang
Apr 4, 2021·Microorganisms·Ji LiuXiao-Hua Zhang

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