Tags » Prokaryotes

Seagrass biofilm communities at a naturally CO2-rich vent

Seagrass meadows are a crucial component of tropical marine reef ecosystems. Seagrass plants are colonized by a multitude of epiphytic organisms that contribute to broadening the ecological role of seagrasses. 184 more words


The effect of CO2 and temperature change on phytoplankton and benthic algae - a mesocosm study

By the end of this century, the expected atmospheric CO2 concentration will reach 800~1000 ppm. Phytoplankton and benthic algae are the primary production in the ocean, but the effects of CO2 and temperature on the algae is inconclusive. 159 more words


Metagenomics reveals planktonic bacterial community shifts across a natural CO2 gradient in the Mediterranean Sea

Bacterial communities at a CO2 vent (pH 6.7) were compared with those at control (pH 8.0) and transition sites (pH 7.6) using 16S rRNA metagenomics. … 68 more words


Warming and acidification promote cyanobacterial dominance in turf algal assemblages

As marine ecosystems are predicted to be facing increases in both temperature and CO2 levels, resulting in increased acidity, scientific research is attempting to predict the effect that the altered environmental conditions will have on species, communities and, ultimately, ecosystems. 233 more words


Rapid response of the active microbial community to CO2 exposure from a controlled sub-seabed CO2 leak in Ardmucknish Bay (Oban, Scotland)

The response of the benthic microbial community to a controlled sub-seabed CO2 leak was assessed using quantitative PCR measurements of benthic bacterial, archaeal and cyanobacteria/chloroplast 16S rRNA genes. 199 more words

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Marine ammonia-oxidizing archaeal isolates display obligate mixotrophy and wide ecotypic variation

Ammonia-oxidizing archaea (AOA) are now implicated in exerting significant control over the form and availability of reactive nitrogen species in marine environments. Detailed studies of specific metabolic traits and physicochemical factors controlling their activities and distribution have not been well constrained in part due to the scarcity of isolated AOA strains. 244 more words


Effect of CO2, nutrients and light on coastal plankton. II. Metabolic rates

We conducted a microcosm experiment aimed at studying the interactive effects of high CO2, nutrient loading and irradiance on the metabolism of a planktonic community sampled in the Western Mediterranean near the coast of Málaga. 273 more words