Results 121 to 130 of about 23,251 (260)

Structural insights into θ‐type carbonic anhydrases 3 and 4: Tuning the directionality of CO2 hydration in a diatom

The FEBS Journal, EarlyView.
θ‐CA3 from a marine diatom has an N‐terminal transmembrane helix and two homologous catalytic domains. The enzyme functions as a dimer, with active sites formed near the dimer interface. A bicarbonate ion binds on the symmetry axis of the dimer and forms hydrogen bonds with both monomers, thereby activating θ‐CA3 and tuning CO2 hydration activity ...
Hiroto Negoro, Atsuki Ohsawa, Ginga Shimakawa, Hideaki Tanaka, Yusuke Matsuda, Genji Kurisu   +5 more
wiley   +1 more source

Intermittent light enhances pigment production in the diatom <i>Phaeodactylum tricornutum</i>: a combined physiological and transcriptomic approach. [PDF]

Microbiol Spectr
Zheng J, Yuan J, Wang X, Zhang D, Lin L, Shi N, Feng Y.   +6 more
europepmc   +1 more source

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

Fisheries Oceanography, EarlyView.
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina, Evgeny A. Pakhomov, Laurie Weitkamp, Brian P. V. Hunt   +3 more
wiley   +1 more source

New climate regime restructures the ecology of Canada's Northern Great Lakes. [PDF]

Proc Natl Acad Sci U S A
Rühland KM, Michelutti N, Evans MS, Howland KL, Smol JP.   +4 more
europepmc   +1 more source

Marine heatwaves shape size‐dependent thermal exposure, habitat use and marine residency in Arctic char (Salvelinus alpinus)

Journal of Fish Biology, EarlyView.
Abstract Marine heatwaves (MHWs) are increasing in high‐latitude oceans, yet behavioural responses of anadromous fishes to these potential stressors during short marine feeding seasons remain poorly understood. We combined acoustic telemetry (internal temperature and depth) with satellite‐derived sea surface temperature data to quantify Arctic char ...
Jessica E. Desforges, David Côté, Joey Angnatok, J. Brian Dempson, Travis E. Van Leeuwen   +4 more
wiley   +1 more source

Abundance and Dynamics of Centric Diatom Coscinodiscus and Pennate Diatom Pluerosigma in Atlantic Ocean (Nigeria), Gulf of Guinea

Journal of Applied Sciences and Environmental Management
Diatoms which are classified into centric diatoms and pPennate diatoms play vital role in themarine food chain. Hence, the objective of this paper is to evaluate the abundance, distribution, dynamics and occurrence of Coscinodiscus and Pluerosigma in ...
O. A. Omoruyi, M. O. Kadiri
doaj  

Seasonal Variation in Diatom Availability and Utilization by Juvenile Japanese Sea Cucumber <i>Apostichopus japonicus</i>. [PDF]

Microorganisms
Matsumoto T, Matsuno K, Anaguchi Y, Inaba N.   +3 more
europepmc   +1 more source

Auxin response and PIN‐mediated transport in chlorophyte algae

Journal of Integrative Plant Biology, EarlyView.
Like multicellular plants, green algae respond to auxin and move it across their cells. However, their PIN‐like proteins do not act like plant auxin exporters, suggesting that basic auxin transport evolved early and specialized directional transport appeared later in plant evolution.
Adrijana Smoljan, Sarah Koutnik‐Abele, Dmitrii Vladimirtsev, Petr Klíma, Anita Bírošíková, Yuzhou Zhang, Jack Merrin, Maximilian Schuster, Katarina Kurtović, Ulrich Z. Hammes, Jan Petrášek, Jiří Friml   +11 more
wiley   +1 more source

A mother's gift: Provisioning of plastid-derived structures into eggs promotes invertebrate development and dispersal. [PDF]

PLoS Biol
Lewis JP, Nyholm SV.
europepmc   +1 more source

Chloroplast and mitochondrial genomes of Sphaerosorus coelastroides Pascher (Xanthophyceae) from Central Appalachia, Clinch River, Virginia, United States

Journal of Phycology, EarlyView.
Abstract This report describes the isolation and culture of Sphaerosorus coelastroides from the plankton of a freshwater river in the central Appalachian mountain chain. This alga was first observed in a dry freshwater riverbed in Central Europe in 1908 and, since then, has been included in Xanthophyceae surveys from nearly all continents with ...
Gavin S. Collins, Robin A. Matthews, A. Bruce Cahoon   +2 more
wiley   +1 more source