Ocean acidification (OA), caused by seawater CO2 uptake, has significant impacts on marine calcifying organisms and phototrophs. However, the response of bacterial communities, who play a crucial role in marine biogeochemical cycling, to OA is still not well understood. 194 more words
Tags » Prokaryotes
Strains of the harmful cCyanobacterium Microcystis aeruginosa differ in gene expression and activity of inorganic carbon uptake systems at elevated CO2 levels
Cyanobacteria are generally assumed to be effective competitors at low CO2 levels because of their efficient CO2-concentrating mechanism (CCM), and yet how bloom-forming cyanobacteria respond to rising CO2 concentrations is less clear. 236 more words
Climate change stressors destabilize the microbiome of the Caribbean barrel sponge, Xestospongia muta
The effect of climate change, both thermal stress and ocean acidification, on coral reefs is of increasing concern with the effects on calcification at the organismal level, and changes in the ratio of accretion to erosion on larger spatial scales of particular interest. 204 more words
Introductions: the Prokaryotes and the Eukaryotes
There are different kinds of cells: eukaryotic and prokaryotic.
Bacterial or archaeal cells are prokaryotic.
As I mentioned in my last science-y post, eukaryotic cells are the kinds of cells that we have. 1,038 more words
No observed effect of ocean acidification on nitrogen biogeochemistry in a summer Baltic Sea plankton community
Nitrogen fixation by filamentous cyanobacteria supplies significant amounts of new nitrogen (N) to the Baltic Sea. This balances N loss processes such as denitrification and anammox and forms an important N source supporting primary and secondary production in N-limited post-spring bloom plankton communities. 296 more words
Carbonate chemistry dynamics and biological processes along a river-sea gradient (Gulf of Trieste, northern Adriatic Sea)
In this paper we investigated, for two years and with a bi-monthly frequency, how physical, chemical, and biological processes affect the marine carbonate system in a coastal area characterized by high alkalinity riverine discharge (Gulf of Trieste, northern Adriatic Sea, NE Mediterranean Sea). 317 more words
Impact of CO2 leakage from sub-seabed carbon dioxide capture and storage (CCS) reservoirs on benthic virus–prokaryote interactions and functions
Atmospheric CO2 emissions are a global concern due to their predicted impact on biodiversity, ecosystems functioning, and human life. Among the proposed mitigation strategies, CO2 capture and storage, primarily the injection of CO2 into marine deep geological formations has been suggested as a technically practical option for reducing emissions. 233 more words