Density‐dependent mechanisms regulate spore formation in the diatom Chaetoceros socialis
نویسندگان
چکیده
منابع مشابه
Biological responses of the marine diatom Chaetoceros socialis to changing environmental conditions: A laboratory experiment
Diatoms constitute a major group of phytoplankton, accounting for ~20% of the world's primary production. It has been shown that iron (Fe) can be the limiting factor for phytoplankton growth, in particular, in the HNLC (High Nutrient Low Chlorophyll) regions. Iron plays thus an essential role in governing the marine primary productivity and the efficiency of biological carbon pump. Oceanic syst...
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Iron availability strongly governs the growth of Southern Ocean phytoplankton. To investigate how iron limitation affects photosynthesis as well as the uptake of carbon and iron in the Antarctic diatom Chaetocerossimplex, a combination of chlorophyll a fluorescence measurements and radiotracer incubations in the presence and absence of chemical inhibitors was conducted. Iron limitation in C. si...
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Genotoxic effects of cadmium on phytoplankton Chaetoceros tenuissimus have been evaluated using DNA damage by Comet assay. Cadmium concentrations ranging from 2.4 to 10 mg/l were used to evaluate the effects. Results showed that as the concentration of Cd increased growth of the diatom decreased. Alkaline single-cell gel electrophoresis (Comet assay) method, which is highly sensitive in detecti...
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Chaetoceros is one of the most species rich, widespread and abundant diatom genera in marine and brackish habitats worldwide. It therefore forms an excellent model for in-depth biodiversity studies, assessing morphological and genetic differentiation among groups of strains. The global Chaetoceros lorenzianus complex presently comprises three species known to science. However, our recent studie...
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The enzyme superoxide dismutase (SOD) holds a key position in the microalgal antioxidant network. The present research focused on oxidative stress responses in the Antarctic diatom Chaetoceros brevis F. Schütt during transition to excess (including ultraviolet radiation [UVR]) and limiting irradiance conditions. Over a 4 d period, cellular responses of thiobarbituric acid reactive substances (T...
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ژورنال
عنوان ژورنال: Limnology and Oceanography Letters
سال: 2020
ISSN: 2378-2242,2378-2242
DOI: 10.1002/lol2.10159