Results 21 to 30 of about 1,521 (177)

First report of Protoperidinium steinii (Dinophyceae) bloom from the coastal marine ecosystem – an observation from tropical Indian waters

Oceanologia, 2021
A dense bloom of Protoperidinium steinii was observed in the backwaters adjoining the western Bay of Bengal, Kalpakkam coast, which might be the first report for the world oceans. The brownish-red bloom appeared on 2 October 2019, and it was monitored on
Rengasamy Subramaniyan Sathishkumar, Gouri Sahu, Ajit Kumar Mohanty, Kantha Deivi Arunachalam, Rajagopal Venkatesan   +4 more
doaj   +1 more source

Identification of enriched hyperthermophilic microbial communities from a deep-sea hydrothermal vent chimney under electrolithoautotrophic culture conditions

Scientific Reports, 2021
Deep-sea hydrothermal vents are extreme and complex ecosystems based on a trophic chain. We are still unsure of the identities of the first colonizers of these environments and their metabolism, but they are thought to be (hyper)thermophilic autotrophs ...
Guillaume Pillot, Oulfat Amin Ali, Sylvain Davidson, Laetitia Shintu, Anne Godfroy, Yannick Combet-Blanc, Patricia Bonin, Pierre-Pol Liebgott   +7 more
doaj   +1 more source

Polyhydroxyalkanoate Copolymer Production by Recombinant Ralstonia eutropha Strain 1F2 from Fructose or Carbon Dioxide as Sole Carbon Source

Bioengineering
Ralstonia eutropha strain H16 is a chemoautotrophic bacterium that oxidizes hydrogen and accumulates poly[(R)-3-hydroxybutyrate] [P(3HB)], a prominent polyhydroxyalkanoate (PHA), within its cell. R.
Chih-Ting Wang, Ramamoorthi M Sivashankari, Yuki Miyahara, Takeharu Tsuge   +3 more
doaj   +1 more source

Metagenomic and satellite analyses of red snow in the Russian Arctic [PDF]

PeerJ, 2015
Cryophilic algae thrive in liquid water within snow and ice in alpine and polar regions worldwide. Blooms of these algae lower albedo (reflection of sunlight), thereby altering melting patterns (Kohshima, Seko & Yoshimura, 1993; Lutz et al., 2014; Thomas
Nao Hisakawa, Steven D. Quistad, Eric R. Hester, Daria Martynova, Heather Maughan, Enric Sala, Maria V. Gavrilo, Forest Rohwer   +7 more
doaj   +2 more sources

Acclimation and stress response of Prochlorococcus to low salinity

Frontiers in Microbiology, 2022
Prochlorococcus is an obligate marine microorganism and the dominant autotroph in tropical and subtropical open ocean. However, the salinity range for growing and response to low salinity exposure of Prochlorococcus are still unknown.
Xiayu He, Xiayu He, Huan Liu, Huan Liu, Lijuan Long, Lijuan Long, Junde Dong, Junde Dong, Sijun Huang, Sijun Huang   +9 more
doaj   +1 more source

Development of the trophic part of consortia’s relations of the gossamer-winged butterflies (Lepidoptera, Lycaenidae) with Salvia nutans (Lamiaceae)

Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2008
On the basis of dummy individual consortia of Salvia nutans L. an important component of fertilization mechanism – the dynamics of trophic relations of antophylus agents with an entomophilous angiosperm autotroph was investigated.
K. K. Goloborodko
doaj   +1 more source

Phosphorus Availability Alters the Effects of Silver Nanoparticles on Periphyton Growth and Stoichiometry. [PDF]

PLoS ONE, 2015
Exposure to silver nanoparticles (AgNPs) may alter the structure and function of freshwater ecosystems. However, there remains a paucity of studies investigating the effects of AgNP exposure on freshwater communities in the natural environment where ...
Beth C Norman, Marguerite A Xenopoulos, Daniel Braun, Paul C Frost   +3 more
doaj   +1 more source

A simplified two‐station approach for modeling metabolism in dam tailwaters subject to diel flow variation

Limnology and Oceanography: Methods, EarlyView.
Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop, Bridget R. Deemer, Theodore A. Kennedy, Robert A. Payn, Robert O. Hall Jr., Charles B. Yackulic   +5 more
wiley   +1 more source

What drives growth responses of nitrogen and phosphorus (co-)limited primary producer communities?

Frontiers in Ecology and Evolution
The growth of autotroph communities is frequently (co-)limited by essential nutrients such as nitrogen (N) and phosphorus (P). Several mechanisms have been proposed to explain the observed co-limitation patterns at different levels of biological ...
Andrea Redoglio, Erik Sperfeld, Erik Sperfeld   +2 more
doaj   +1 more source

Metagenome-Based Exploration of Bacterial Communities Associated with Cyanobacteria Strains Isolated from Thermal Muds

Microorganisms, 2022
Cyanobacteria constitute a pioneer colonizer of specific environments for whom settlement in new biotopes precedes the establishment of composite microbial consortia.
Sébastien Halary, Sébastien Duperron, Justine Demay, Charlotte Duval, Sahima Hamlaoui, Bérénice Piquet, Anita Reinhardt, Cécile Bernard, Benjamin Marie   +8 more
doaj   +1 more source