Results 31 to 40 of about 4,524 (133)

Amino Acid Catabolism During Nitrogen Limitation in Phaeodactylum tricornutum

Frontiers in Plant Science, 2020
Diatoms can accumulate high levels of triacylglycerols (TAGs) under nitrogen depletion and have attracted increasing attention as a potential system for biofuel production.
Yufang Pan, Fan Hu, Chen Yu, Chen Yu, Chenjie Li, Chenjie Li, Teng Huang, Teng Huang, Hanhua Hu   +8 more
doaj   +1 more source

Evolution and regulation of nitrogen flux through compartmentalized metabolic networks in a marine diatom

Nature Communications, 2019
Here, using the diatom Phaeodactylum tricornutum as a model organism, the authors combine functional genomics, phylogenetics, and metabolic modeling to describe how diatoms might have functionally integrated nitrogen metabolism during evolution and how ...
Sarah R. Smith, Chris L. Dupont, James K. McCarthy, Jared T. Broddrick, Miroslav Oborník, Aleš Horák, Zoltán Füssy, Jaromír Cihlář, Sabrina Kleessen, Hong Zheng, John P. McCrow, Kim K. Hixson, Wagner L. Araújo, Adriano Nunes-Nesi, Alisdair Fernie, Zoran Nikoloski, Bernhard O. Palsson, Andrew E. Allen   +17 more
doaj   +1 more source

Environmental risk assessment of triazine herbicides in the Bohai Sea and the Yellow Sea and their toxicity to phytoplankton at environmental concentrations

Environment International, 2019
Herbicides have been increasingly used worldwide and a large amount of herbicide residue eventually enters the ocean via groundwater or surface run-off every year.
Liqiang Yang, Hongmei Li, Yongyu Zhang, Nianzhi Jiao   +3 more
doaj   +1 more source

Lhcx proteins provide photoprotection via thermal dissipation of absorbed light in the diatom Phaeodactylum tricornutum

Nature Communications, 2019
Photosynthetic organisms can dissipate excess absorbed light energy as heat to avoid photodamage. Here the authors show that induced thermal dissipation in the diatom Phaeodactylum tricornutum Pt4 is Lhcx protein-dependent and correlates with a reduced ...
Jochen M. Buck, Jonathan Sherman, Carolina Río Bártulos, Manuel Serif, Marc Halder, Jan Henkel, Angela Falciatore, Johann Lavaud, Maxim Y. Gorbunov, Peter G. Kroth, Paul G. Falkowski, Bernard Lepetit   +11 more
doaj   +1 more source

Optimizing CRISPR/Cas9 for the Diatom Phaeodactylum tricornutum

Frontiers in Plant Science, 2018
CRISPR/Cas9 is a powerful tool for genome editing. We constructed an easy-to-handle expression vector for application in the model organism Phaeodactylum tricornutum and tested its capabilities in order to apply CRISPR/Cas9 technology for our purpose. In
Daniel Stukenberg, Stefan Zauner, Gianluca Dell’Aquila, Uwe G. Maier, Uwe G. Maier   +4 more
doaj   +1 more source

Mixotrophy in Marine Microalgae to Enhance Their Bioactivity

Microorganisms
Photosynthetic microorganisms, such as microalgae, are remarkable for their ability to harness sunlight, fix carbon dioxide, and produce a variety of bioactive compounds.
Gabriella Licata, Christian Galasso, Fortunato Palma Esposito, Antonio Palumbo Piccionello, Valeria Villanova   +4 more
doaj   +1 more source

The complete mitochondrial genome of the stalk-forming diatom Didymosphenia Geminata

Mitochondrial DNA. Part B. Resources, 2018
The complete mitogenome of the stalk-forming diatom Didymosphenia geminata collected from Mineral County, WV, USA was sequenced on the Ion Torrent PGM and Proton sequencers. The D.
Aaron W. Aunins, Donald Hamilton, Timothy L. King   +2 more
doaj   +1 more source

Comparative Structural and Functional Analyses of the Fusiform, Oval, and Triradiate Morphotypes of Phaeodactylum tricornutum Pt3 Strain

Frontiers in Plant Science, 2021
The diatom Phaeodactylum tricornutum is a marine unicellular microalga that exists under three main morphotypes: oval, fusiform, and triradiate. Previous works have demonstrated that the oval morphotype of P.
Ludovic Galas, Carole Burel, Damien Schapman, Marc Ropitaux, Sophie Bernard, Sophie Bernard, Magalie Bénard, Muriel Bardor, Muriel Bardor   +8 more
doaj   +1 more source

Artemia salina Toxicity Assay: Standardization in a 24‐Well Microplate

Environmental Toxicology, EarlyView.
ABSTRACT Bioassays with Artemia sp. are widely used in aquatic, environmental, and human toxicology as an initial tool to investigate the toxicity of plant extracts, isolated compounds, drugs, and products of natural or synthetic origin. These assays allow for the estimation of the median lethal concentration (LC50) and guide subsequent studies in ...
Matheus Pires Miranda, Natalie Petrovna Semanovschi, Roseane Santos de Souza, Angélica Maria Lucchese, Luzimar Gonzaga Fernandez   +4 more
wiley   +1 more source

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