Zobrazeno 1 - 10
of 229
pro vyhledávání: '"François M M, Morel"'
Publikováno v:
Annual Review of Earth and Planetary Sciences. 48:491-517
The sinking of organic matter to the deep ocean leaves extremely low concentrations of major and trace nutrients for photosynthetic organisms at the sunlit surface. As a result, marine phytoplankton make use of alternative sources of essential elemen
Publikováno v:
Metallomics. 11:201-212
To increase iron (Fe) bioavailability in surface soils, microbes secrete siderophores, chelators with widely varying Fe affinities. Strains of the soil bacterium Azotobacter chroococcum (AC), plant-growth promoting rhizobacteria used as agricultural
Autor:
A. Lee, Anne M. L. Kraepiel, Darcy L. McRose, Sebastian H. Kopf, François M. M. Morel, Xinning Zhang, Daniel M. Sigman, Oliver Baars
Publikováno v:
Geochimica et Cosmochimica Acta. 244:12-23
Most biological nitrogen transformations have characteristic kinetic isotope effects used to track these processes in modern and past environments. The isotopic fractionation associated with nitrogen fixation, the only biological source of fixed nitr
Publikováno v:
Environmental Science & Technology, 55 (21)
James (Jim) Morgan was a leading figure in the field of environmental science and engineering. He championed the application of chemistry in the study of the environment and the design and optimization of environmental treatment processes. Jim influe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64cac1f715972bb9750f563aa22b2363
Publikováno v:
Environmental Microbiology. 20:1667-1676
Many bacteria produce siderophores to bind and take up Fe(III), an essential trace metal with extremely low solubility in oxygenated environments at circumneutral pH. The purple non-sulfur bacterium Rhodopseudomonas palustris str. CGA009 is a metabol
Autor:
Alan T. Stone, Oliver Baars, Mohammad R. Seyedsayamdost, Xinning Zhang, Marcus I. Gibson, François M. M. Morel
Publikováno v:
Angewandte Chemie International Edition. 57:536-541
Microbes utilize siderophores to access essential iron resources. Over 500 siderophores are known, but they utilize a small set of common moieties to bind iron. Azotobacter chroococcum expresses iron-rich nitrogenases with which it reduces N2. Though
The complex effects of ocean acidification on the prominent N 2 -fixing cyanobacterium Trichodesmium
Autor:
Zuozhu Wen, Dalin Shi, Haizheng Hong, Wenfang Lin, Shuh-Ji Kao, François M. M. Morel, Siwei Chang, Ya-Wei Luo, Futing Zhang, Rong Shen, Sven A. Kranz
Publikováno v:
Science. 356:527-531
Acidification of seawater caused by anthropogenic carbon dioxide (CO 2 ) is anticipated to influence the growth of dinitrogen (N 2 )–fixing phytoplankton, which contribute a large fraction of primary production in the tropical and subtropical ocean
The effects of pH and pCO2 on photosynthesis and respiration in the diatom Thalassiosira weissflogii
Publikováno v:
Photosynthesis Research. 132:83-93
The response of marine phytoplankton to the ongoing increase in atmospheric pCO2 reflects the consequences of both increased CO2 concentration and decreased pH in surface seawater. In the model diatom Thalassiosira weissflogii, we explored the effect
Publikováno v:
Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine. 32(6)
A variety of trace metals, including prominently iron (Fe) are necessary for marine microorganisms. Chemically defined medium recipes have been used for several decades to study phytoplankton, but similar methods have not been adopted as widely in st
Autor:
Romain Darnajoux, Xinning Zhang, Darcy L. McRose, Jean-Philippe Bellenger, François M. M. Morel, Anne M. L. Kraepiel
Publikováno v:
Biogeochemistry. 127:189-198
Biological nitrogen fixation, the main natural input of fixed nitrogen into the biosphere, is catalyzed by Mo-, V-, or Fe-only nitrogenase metalloenzymes. Although “alternative” V- and Fe-only nitrogenase genes are found in many environments, the