Short-term changes in polysaccharide utilization mechanisms of marine bacterioplankton during a spring phytoplankton bloom.

Environmental Microbiology
Greta ReintjesCarol Arnosti

Abstract

Spring phytoplankton blooms in temperate environments contribute disproportionately to global marine productivity. Bloom-derived organic matter, much of it occurring as polysaccharides, fuels biogeochemical cycles driven by interacting autotrophic and heterotrophic communities. We tracked changes in the mode of polysaccharide utilization by heterotrophic bacteria during the course of a diatom-dominated bloom in the German Bight, North Sea. Polysaccharides can be taken up in a 'selfish' mode, where initial hydrolysis is coupled to transport into the periplasm, such that little to no low-molecular weight (LMW) products are externally released to the environment. Alternatively, polysaccharides hydrolyzed by cell-surface attached or free extracellular enzymes (external hydrolysis) yield LMW products available to the wider bacterioplankton community. In the early bloom phase, selfish activity was accompanied by low extracellular hydrolysis rates of a few polysaccharides. As the bloom progressed, selfish uptake increased markedly, and external hydrolysis rates increased, but only for a limited range of substrates. The late bloom phase was characterized by high external hydrolysis rates of a broad range of polysaccharides and reduced ...Continue Reading

References

Feb 2, 2000·Applied and Environmental Microbiology·L RiemannF Azam
Jun 1, 2002·Applied and Environmental Microbiology·Annelie PernthalerRudolf Amann
Jul 26, 2003·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·C Arnosti
Jun 26, 2009·The Journal of Biological Chemistry·Eric C MartensJeffrey I Gordon
Apr 17, 2010·Bioinformatics·Steven W KembelCampbell O Webb
Feb 19, 2011·Annual Review of Marine Science·Carol Arnosti
Jul 19, 2011·Advances in Carbohydrate Chemistry and Biochemistry·Anatolii I Usov
Jan 5, 2012·PloS One·Carol ArnostiWade H Jeffrey
May 30, 2012·Environmental Microbiology·Hugo Sarmento, Josep M Gasol
Nov 30, 2012·Nucleic Acids Research·Christian QuastFrank Oliver Glöckner
Jan 11, 2013·The ISME Journal·Amy E ZimmermanSteven D Allison
Aug 20, 2014·Nature Reviews. Microbiology·Alison BuchanJosé M González
Mar 27, 2016·Applied and Environmental Microbiology·Christin M BennkeBernhard M Fuchs
Apr 26, 2016·Nature·Seth Rakoff-NahoumLaurie E Comstock
Dec 3, 2016·Nucleic Acids Research·Ana Luisa ToribioGuy Cochrane
Mar 23, 2017·The ISME Journal·Greta ReintjesRudolf Amann
Nov 20, 2018·Environmental Microbiology·John Paul BalmonteCarol Arnosti
Mar 15, 2020·Proceedings of the National Academy of Sciences of the United States of America·Stefan BeckerJan-Hendrik Hehemann

❮ Previous
Next ❯

Citations

Jul 22, 2020·Systematic and Applied Microbiology·Anissa GriebBernhard M Fuchs

❮ 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.