Results 41 to 50 of about 2,044 (183)

Deep-sea meiofaunal and foraminiferal communities along a gradient of primary productivity in the eastern Mediterranean Sea

Scientia Marina, 2009
Benthic metazoa and stained foraminifera (>32 μm) were studied in relation to prevailing environmental parameters in the Aegean Sea (Sporades Basin and Cretan Sea) and Levantine Basin (Ierapetra Basin) during the METEOR Cruise 40 Leg 3 (December 1997 ...
Nikolaos Lampadariou, Anastasios Tselepides, Eleni Hatziyanni   +2 more
doaj   +1 more source

Influence of Substrate Concentration on the Culturability of Heterotrophic Soil Microbes Isolated by High-Throughput Dilution-to-Extinction Cultivation

mSphere, 2020
The vast majority of microbes inhabiting oligotrophic shallow subsurface soil environments have not been isolated or studied under controlled laboratory conditions. In part, the challenges associated with isolating shallow subsurface microbes may persist
Ryan P. Bartelme, Joy M. Custer, Christopher L. Dupont, Josh L. Espinoza, Manolito Torralba, Banafshe Khalili, Paul Carini   +6 more
doaj   +1 more source

Identification of a transcriptional regulator for oligotrophy-responsive promoter in Rhodococcus erythropolis N9T-4 [PDF]

Bioscience, Biotechnology, and Biochemistry, 2020
ABSTRACT Two genes, aldA, and mnoA, encoding an NAD-dependent aliphatic dehydrogenase and N,N′-dimethyl-4-nitrosoaniline-dependent methanol dehydrogenase, respectively, are strongly expressed when Rhodococcus erythropolis N9T-4 is grown under oligotrophic conditions. In this study, we found a transcriptional regulator required for the
Ryoji, Ikegaya, Masaki, Shintani, Kazuhide, Kimbara, Masao, Fakuda, Nobuyuki, Yoshida   +4 more
openaire   +2 more sources

Gene Expansion and Positive Selection as Bacterial Adaptations to Oligotrophic Conditions

mSphere, 2019
We examined the genomic adaptations of prevalent bacterial taxa in a highly nutrient- and ion-depleted freshwater environment located in the secondary cooling water system of a nuclear research reactor.
Ruben Props, Pieter Monsieurs, Peter Vandamme, Natalie Leys, Vincent J. Denef, Nico Boon   +5 more
doaj   +1 more source

Intermediate water flows in the western South Pacific: as revealed by individual Argo floats trajectories and a model re-analysis [PDF]

Biogeosciences, 2018
Thanks to the autonomous Argo floats of the OUTPACE cruise (Oligotrophy to UlTra-oligotrophy PACific Experiment) and of the THOT (TaHitian Ocean Time series) project, some features of intermediate-flow dynamics, at around 1000 m depth, within the ...
S. Barbot, A. Petrenko, C. Maes
doaj   +1 more source

Spatial Variability and Long‐Term Trends in Winter Phytoplankton of the Warming Eastern Mediterranean Sea

Global Biogeochemical Cycles, Volume 40, Issue 10, October 2026.
Abstract The Eastern Mediterranean Sea (EMS) is among the fastest‐warming ocean regions, but the impacts of this warming on phytoplankton are unclear. Here, wintertime field observations were conducted across the EMS. These observations showed that small photosynthetic eukaryotes (<20 μm) dominated phytoplankton communities, collectively accounting for
Zhongwei Yuan, Alon Blachinsky, Tom Reich, Yoav Lehahn, Ilana Berman‐Frank, Eric P. Achterberg, Thomas J. Browning   +6 more
wiley   +1 more source

Microbial communities in dark oligotrophic volcanic ice cave ecosystems of Mt. Erebus, Antarctica

Frontiers in Microbiology, 2015
The Earth’s crust hosts a subsurface, dark, and oligotrophic biosphere that is poorly understood in terms of the energy supporting its biomass production and impact on food webs at the Earth’s surface.
Bradley M. Tebo, Richard E. Davis, Roberto P. Anitori, Laurie B. Connell, Peter eSchiffman, Hubert eStaudigel   +5 more
doaj   +1 more source

The fate of a southwest Pacific bloom: gauging the impact of submesoscale vs. mesoscale circulation on biological gradients in the subtropics [PDF]

Biogeosciences, 2017
The temporal evolution of a surface chlorophyll a bloom sampled in the western tropical South Pacific during the 2015 Oligotrophy to UlTra-oligotrophy PACific Experiment (OUTPACE) cruise is examined.
A. de Verneil, L. Rousselet, A. M. Doglioli, A. A. Petrenko, T. Moutin   +4 more
doaj   +1 more source

Atmospheric Microbial Transport to Antarctica and Its Ecological Implications: A Systematic Review

Environmental Microbiology, Volume 28, Issue 9, September 2026.
Atmospheric transport to Antarctica operates via long‐range advection, marine aerosolization, and local resuspension, acting as a strict ecological filter. This selective barrier could actively shape local ecosystems by seeding them with functionally distinct, stress‐adapted microbial pioneers capable of surviving extreme conditions.
Rodrigo Goldenberg‐Barbosa, Anna Donato, Dafne Anjos, Letícia Eller, Heitor Evangelista, Cesar Amaral   +5 more
wiley   +1 more source

Coccolithophore calcification response to past ocean acidification and climate change [PDF]

, 2014
Anthropogenic carbon dioxide emissions are forcing rapid ocean chemistry changes and causing ocean acidification (OA), which is of particular significance for calcifying organisms, including planktonic coccolithophores.
Poulton, Alex J.; id_orcid, Gibbs, SJ, Wilson, Paul, Wilson, Paul A., Wilson, Paul A, Wilson, PA, Gibbs, Samantha J, Brown, Paul R., O'Dea, Sarah, Gibbs, Samantha, Newsam, Cherry, Newsam, C, Poulton, Alex J, Bown, PR, Poulton, AJ, Young, JR, O'Dea, SA, Bown, Paul R., O’Dea, Sarah A., Poulton, Alex J., Gibbs, Samantha J., Young, Jeremy R., O'Dea, Sarah A., Bown, Paul R   +23 more
core   +1 more source