Utilization of Trace Elements by Marine Unicellular Algae
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چکیده
منابع مشابه
The cyanate utilization capacity of marine unicellular Cyanobacteria
Cyanate, a by-product of urea decomposition, is a potential nitrogen (N) source in marine environments, but to date it has received scant attention. Cyanobacteria presumably acquire this compound via a substrate-specific ABC-type transporter (cynABD), and they convert it to ammonium and carbon dioxide by cyanase (cynS) activity. Participation of cyanate utilization genes in N-stress responses i...
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*上 田泰司 ,中 原元和,石 井紀明,鈴 木 譲:放 射線医学総合研究所 海洋 放射生 態学研究部,那 珂湊 市 磯崎3609〒311-12 **鈴 木浜治:動 力炉核燃料開発事業団 安全管理部 茨城県那珂郡東海村村松3371 〒319-11 Trace element/Cephalopods/Concentration factor For the estimation of internal radiation to human beings, the amounts of Mn, Fe, Cu, Zn, Co and Cs in 5 species of marine cephalopods were determined by atomic absorption spectro photometry and neutron activation analysis, and ...
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Background: Osteoporosis is a prevalent bone disease caused by an imbalance between bone formation and resorption. Nutritional factors are involved in the prevention of osteoporosis. Several treatments exist for osteoporosis including bisphosphonates, parathyroid hormone, estrogen therapy, and hormone therapy, which have their own side effects. In the quest for an appropriate treatment for os...
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In 1934, the year Harold Urey was awarded a Nobel prize in chemistry for the discovery of deuterium, Alfred Redfield (Fig. 1), a 44-year-old animal physiologist at Harvard University, proposed that marine plankton have relatively constrained elemental ratios (Redfield 1934). The so-called Redfield ratios of 106 C: 16 N: 1 P (by atoms) were subsequently embraced by many biological oceanographers...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1957
ISSN: 0022-1287
DOI: 10.1099/00221287-16-1-282