Journal ArticleDOI
Pathway of ammonia assimilation in illuminated and darkened Chlamydomonas reinhardii
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TLDR
Evidence is presented which shows that NH 3 assimilation in Chlamydomonas occurs exclusively via the glutamate synthase cycle in illuminated and darkened cells and those in which the internal level of NH 3 is elevated, indicating that glutamate dehydrogenase probably plays a catabolic rather than anabolic role in the N nutrition of the alga.About:
This article is published in Phytochemistry.The article was published on 1981-01-01. It has received 89 citations till now. The article focuses on the topics: Glutamate dehydrogenase & Glutamate synthase.read more
Citations
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Journal ArticleDOI
Nitrogen-Sparing Mechanisms in Chlamydomonas Affect the Transcriptome, the Proteome, and Photosynthetic Metabolism
Stefan Schmollinger,Timo Mühlhaus,Nanette R. Boyle,Ian K. Blaby,David Casero,Tabea Mettler,Jeffrey L. Moseley,Janette Kropat,Frederik Sommer,Daniela Strenkert,Dorothea Hemme,Matteo Pellegrini,Arthur R. Grossman,Mark Stitt,Michael Schroda,Sabeeha S. Merchant +15 more
TL;DR: Comparison of the N-replete versus N-deplete proteome indicated that abundant proteins with a high N content are reduced in N-starved cells, while the proteins that are increased have lower than average N contents, suggesting an approach for engineering increased N-use efficiency.
Journal ArticleDOI
Understanding nitrate assimilation and its regulation in microalgae.
TL;DR: The recent findings on nitrate transport, nitrate reduction and the regulation of nitrate assimilation are presented and participation of regulatory genes and proteins in positive and negative signaling of the pathway, as well as those involved in Molybdenum cofactor synthesis required to nitrate Assimilation are critically reviewed.
Journal ArticleDOI
Photosynthesis, photorespiration and nitrogen metabolism
TL;DR: Evidence is presented to suggest that the amino acids essential for human nutrition are all synthesized in the chloroplast and that they may be the sole site of such biosynthetic reactions.
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Revisiting carbon, nitrogen, and phosphorus metabolisms in microalgae for wastewater treatment.
TL;DR: This review aims to summarize C, N, and P metabolisms in microalgae for a better understanding of theMicroalgae-based wastewater treatment from the nutrient uptake pathway, and examine the key physiological factors or the operating conditions related to nutrient metabolisms that may affect the treatment efficiency.
References
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Journal ArticleDOI
Regulation of the assimilation of nitrogen compounds.
TL;DR: The Role o/Glutamate Synthase (GOGAT), Biochemistry oj GaGA T, Physiology of GOGAT production, and Genetics oj GS jormation are revealed.
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The assimilation of nitrate and ammonium by chlamydomonas reinhardi
Ann Thacker,P. J. Syrett +1 more
TL;DR: Experimental evidence indicated that products of ammonium assimilation, rather than ammonium itself, were inhibiting, and it is suggested that light promoted nitrogen assimilation by photophosphorylation.
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An association between photorespiration and protein catabolism: Studies with Chlamydomonas
TL;DR: Evidence is presented which shows that this photorespiratory N cycle in Chlamydomonas derives its N from protein rather than from freshly synthesised glutamate, suggesting that previous estimates of the amount of N recycled in photorespiration may have been too high.
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A comparison of the characteristics of glutamine synthetase and glutamate dehydrogenase from lemna minor l.
G. R. Stewart,David Rhodes +1 more
TL;DR: The characteristics of glutamate dehydrogenase, when contrasted with those of glutamine synthetase, and considered in relation to the concurrent regulation of the two enzymes, support the view that the glutamate pathway may contribute towards ammonia assimilation under conditions of high ammonia availability or low energy charge.
Journal ArticleDOI
Occurrence of two forms of glutamate synthase in Chlamydomonas reinhardii
TL;DR: A simple and rapid radiochemical assay for measuring glutamate synthase activity in permeable cells and cell free extracts of Chlamydomonas revealed a strict coordinate synthesis of the two enzymes.