Heterotrophic Foraminifera Capable of Inorganic Nitrogen Assimilation
نویسندگان
چکیده
منابع مشابه
Inorganic nitrogen assimilation in Chlamydomonas.
Inorganic nitrogen is an essential nutrient for photosynthetic organisms. Its efficient use in nature involves adaptation of the organisms to the availability of the nitrogen supply, to changing environmental conditions, and to the provision of carbon and other nutrients. The unicellular alga Chlamydomonas provides a useful model to identify not only each of the components participating in the ...
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The photosynthetic bacterium Rhodopseudomonas capsulata lacks glutamate dehydrogenase and normally uses the glutamine synthetase/glutamate synthase sequence of reactions for assimilation of N2 and ammonia. The glutamine synthetase in cell-free extracts of the organism is completely sedimented by centrifugation at 140,000 X g for 2 h, is inhibited by L-alanine but not by adenosine 5'-monophospha...
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A sequencing batch reactor (SBR) supplied with Bacillus subtilis (treatment group) was employed to treat the sludge from a re-circulating aquaculture system (RAS). The crude protein content of bio-flocs from the treatment group increased from 21.52%±1.5% to 29.65%±13.34%, which was 23.97%±11.62% greater than that of the SBRs without B. subtilis (control group). The removal rate of dissolved ino...
متن کاملSubsystem: Inorganic sulfur (sulfate) assimilation
Introduction Sulfur is required for the biosynthesis of several essential compounds like amino acids (cysteine and methionine), vitamins (biotin, thiamin), and prosthetic groups (Fe-S clusters) in all organisms. In order to synthesize these compounds, the sulfur has usually to be in a reduced state, most commonly as (hydrogen) sulfide. In the absence of an environmental supply of reduced sulfur...
متن کاملAssimilation of inorganic nitrogen by marine invertebrates and their chemoautotrophic and methanotrophic symbionts.
Symbioses between marine invertebrates and their chemoautotrophic and methanotrophic symbionts are now known to exist in a variety of habitats where reduced chemical species are present. The utilization of chemical energy and reliance on C(1) compounds by these symbioses are well documented. Much less is known about their metabolism of nitrogen. Earlier work has shown that the tissues of organi...
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ژورنال
عنوان ژورنال: Frontiers in Microbiology
سال: 2020
ISSN: 1664-302X
DOI: 10.3389/fmicb.2020.604979