نتایج جستجو برای: heterotrophic growth
تعداد نتایج: 822145 فیلتر نتایج به سال:
We investigated magnesium (Mg2+) ion uptake by Chlorella vulgaris under mixotrophic growth conditions (10 g/L of glucose) in a stirred photo-bioreactor. The culture nitrate and glucose consumptions were followed and analyzed during the experiments. The cellular chlorophyll α concentration decreased during exponential growth, indicating an adaptation to heterotrophic metabolism. The partition of...
To assess the effects of fluctuating prey availability on predator population dynamics and grazing impact on phytoplankton, we measured growth and grazing rates of three heterotrophic dinoflagellate species-Oxyrrhis marina, Gyrodinium dominans and Gyrodinium spirale-before and after depriving them of phytoplankton prey. All three dinoflagellate species survived long periods (> 10 d) without alg...
Non-photosynthetic, or heterotrophic, tissues in C3 plants tend to be enriched in C compared with the leaves that supply them with photosynthate. This isotopic pattern has been observed for woody stems, roots, seeds and fruits, emerging leaves, and parasitic plants incapable of net CO2 fixation. Unlike in C3 plants, roots of herbaceous C4 plants are generally not C-enriched compared with leaves...
Chlorella pyrenoidosa was cultivated under photoautotrophic, mixotrophic and cyclic light-autotrophic/dark-heterotrophic conditions. The influence of light on the carbon and energy metabolism of microalgae was investigated by the use of metabolic flux analysis. The respiratory activity of microalgae in the light was assessed from the autotrophic flux distribution. Results showed that the glycol...
This study explores the role of transparent exopolymer particles (TEP) as an additional carbon source for heterotrophic microbial activity in the eutrophic Qishon estuary. From the coastal station and upstream the estuary; TEP concentrations, β-glucosidase activity, bacterial production and abundance have gradually increased. TEP were often found as bio-aggregates, scaffolding algae, detritus m...
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