Abundance and activity of Chloroflexi-type SAR202 bacterioplankton in the meso- and bathypelagic waters of the (sub)tropical Atlantic

Environmental Microbiology
Marta M VarelaGerhard J Herndl

Abstract

The contribution of Chloroflexi-type SAR202 cells to total picoplankton and bacterial abundance and uptake of D- and L-aspartic acids (Asp) was determined in the different meso- and bathypelagic water masses of the (sub)tropical Atlantic (from 35 degrees N to 5 degrees S). Fluorescence in situ hybridization (FISH) revealed that the overall abundance of SAR202 was < or = 1 x 10(3) cells ml(-1) in subsurface waters (100 m layer), increasing in the mesopelagic zone to 3 x 10(3) cells ml(-1) and remaining fairly constant down to 4000 m depth. Overall, the percentage of total picoplankton identified as SAR202 increased from < 1% in subsurface waters to 10-20% in the bathypelagic waters. On average, members of the SAR202 cluster accounted for about 30% of the Bacteria in the bathypelagic waters, whereas in the mesopelagic and subsurface waters, SAR202 cells contributed < 5% to total bacterial abundance. The ratio of D-Asp : L-Asp uptake by the bulk picoplankton community increased from the subsurface layer (D-Asp : L-Asp uptake ratio approximately 0.03) to the deeper layers reaching a ratio of approximately 1 at 4000 m depth. Combining FISH with microautoradiography to determine the proportion of SAR202 cells taking up D-Asp versus L...Continue Reading

References

Jul 23, 1996·Proceedings of the National Academy of Sciences of the United States of America·S J GiovannoniN L Adair
Apr 1, 1997·Applied and Environmental Microbiology·T D WrightS J Giovannoni
Oct 31, 2000·Applied and Environmental Microbiology·C C Ouverney, J A Fuhrman
Feb 2, 2002·Applied and Environmental Microbiology·Nasreen Bano, James T Hollibaugh
Jun 1, 2002·Applied and Environmental Microbiology·Annelie PernthalerRudolf Amann
Nov 27, 2002·Antonie van Leeuwenhoek·Jed A Fuhrman
Jan 27, 2006·Microbiology·David MoreiraPurificación López-García

❮ Previous
Next ❯

Citations

Jun 6, 2009·The ISME Journal·Alexander H TreuschStephen J Giovannoni
Dec 19, 2009·Proceedings of the National Academy of Sciences of the United States of America·Pierre E GalandConnie Lovejoy
Feb 22, 2011·Applied and Environmental Microbiology·Esther SingerKatrina J Edwards
May 21, 2009·Environmental Microbiology·Martha SchattenhoferJakob Pernthaler
Oct 10, 2015·The ISME Journal·Massimo C PerniceRamon Massana
Dec 17, 2009·The ISME Journal·Pierre E GalandConnie Lovejoy
Jul 30, 2010·The ISME Journal·Achim QuaiserPurificación López-García
Jan 24, 2014·The ISME Journal·J Cameron ThrashStephan J Giovannoni
Dec 31, 2014·Applied and Environmental Microbiology·M KorlevićS Orlić
Sep 14, 2018·Annual Review of Marine Science·Alyson E SantoroChristopher L Dupont
Dec 14, 2011·Current Microbiology·Massimiliano Molari, Elena Manini
Apr 30, 2013·FEMS Microbiology Ecology·Itziar LekunberriGerhard J Herndl
Jul 14, 2020·Environmental Microbiology·Maya BritsteinLaura Steindler

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.