Results 81 to 90 of about 84,729 (276)

Photosystem II function under extreme low light and low temperatures; polar vs. temperate phytoplankton

Frontiers in Photobiology
Polar phytoplankton achieve slow, but ecologically significant, productivity under exceptionally low light, where the sequential arrivals of photons at Photosystem II complexes are widely spaced in time.
Mackenzie Poirier, Natasha M. Ryan, Pomona Osmers, Arthur Plassart, Arthur Plassart, Sébastien Guérin, Marcel Babin, Maximilian Berthold, Mireille Savoie, Marina Cvetkovska, Douglas A. Campbell   +10 more
doaj   +1 more source

Glycerol Is an Osmoprotectant in Two Antarctic Chlamydomonas Species From an Ice-Covered Saline Lake and Is Synthesized by an Unusual Bidomain Enzyme

Frontiers in Plant Science, 2020
Glycerol, a compatible solute, has previously been found to act as an osmoprotectant in some marine Chlamydomonas species and several species of Dunaliella from hypersaline ponds.
James A. Raymond, Rachael Morgan-Kiss, Sarah Stahl-Rommel   +2 more
doaj   +1 more source

Flagellar Radial Spoke Protein 2 Is a Calmodulin Binding Protein Required for Motility in \u3cem\u3eChlamydomonas reinhardtii\u3c/em\u3e [PDF]

, 2004
Genetic and morphological studies have revealed that the radial spokes regulate ciliary and flagellar bending. Functional and biochemical analysis and the discovery of calmodulin in the radial spokes suggest that the regulatory mechanism involves control
Sale, Winfield S., Yang, Chun, Yang, Pinfen   +2 more
core   +1 more source

Ciliary contact interactions dominate surface scattering of swimming eukaryotes

, 2012
Interactions between swimming cells and surfaces are essential to many microbiological processes, from bacterial biofilm formation to human fertilization.
Dunkel, Jörn, Goldstein, Raymond E., Kantsler, Vasily, Polin, Marco   +3 more
core   +1 more source

Direct measurement of the flow field around swimming microorganisms [PDF]

, 2010
Swimming microorganisms create flows that influence their mutual interactions and modify the rheology of their suspensions. While extensively studied theoretically, these flows have not been measured in detail around any freely-swimming microorganism. We
C. Pozrikidis, C. W. Oseen, D. L. Kirk, E. H. Harris, Idan Tuval, J. S. Guasto, Knut Drescher, Marco Polin, Nicolas Michel, Raymond E. Goldstein   +9 more
core   +2 more sources

Phosphorus Availability Regulates TORC1 Signaling via LST8 in Chlamydomonas[OPEN]

The Plant Cell, 2019
Phosphorus regulates TORC1 signaling in the model green alga Chlamydomonas reinhardtii through the TOR-interacting protein LST8 and the global transcriptional regulator of phosphorus deficiency PSR1.
Inmaculada Couso, M. Pérez-Pérez, M. M. Ford, Enrique Martínez-Force, L. Hicks, J. Umen, J. Crespo   +6 more
semanticscholar   +1 more source

Design of experiments‐driven optimization of Porphyridium marinum cultivation: impact of operational variables on phycoerythrin and exopolysaccharide production

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Among the Porphyridium genus, Porphyridium marinum exhibits the highest phycoerythrin (PE) content. In this study, the metabolic trade‐off between biomass, PE, and sulfated exopolysaccharide (EPS) production was assessed under varying nitrogen and sulfur availability, light intensity, residence time, and cultivation mode.
Rosaria Tizzani, Agnese Torrisi, Fabrizio Bezzo, Eleonora Sforza   +3 more
wiley   +1 more source

The bZIP1 Transcription Factor Regulates Lipid Remodeling and Contributes to ER Stress Management in Chlamydomonas reinhardtii

The Plant Cell, 2019
The mRNA of a Chlamydomonas bZIP transcription factor is spliced by CrIRE1 under ER stress, and the resulting protein protects Chlamydomonas cells from ER stress by modulating lipid remodeling.
Yasuyo Yamaoka, Seungjun Shin, B. Y. Choi, Hanul Kim, Sunghoon Jang, Masataka Kajikawa, T. Yamano, Fantao Kong, B. Légeret, H. Fukuzawa, Y. Li-Beisson, Youngsook Lee   +11 more
semanticscholar   +1 more source

Emergent Run-and-Tumble Behavior in a Simple Model of Chlamydomonas with Intrinsic Noise

, 2012
Recent experiments on the green alga Chlamydomonas that swims using synchronized beating of a pair of flagella have revealed that it exhibits a run-and-tumble behavior similar to that of bacteria such as E. Coli.
Bennett, Rachel R., Golestanian, Ramin
core   +1 more source

TheChlamydomonascell cycle

The Plant Journal, 2015
SummaryThe position ofChlamydomonaswithin the eukaryotic phylogeny makes it a unique model in at least two important ways: as a representative of the critically important, early‐diverging lineage leading to plants; and as a microbe retaining important features of the last eukaryotic common ancestor (LECA) that has been lost in the highly studied yeast ...
Cross, Frederick R., Umen, James G.
openaire   +2 more sources