منابع مشابه
Eutrophication and Phosphate Detergents
concept argue that from 9 to 23 percent of the cellular metabolic energy is required for the operation of the sodium pump (3). The question is, then, whether the cell can provide the energy necessary to pump potassium, calcium, magnesium, sugars, and amino acids if it takes 10 percent of the energy to run only one pump? Recently, some alternative hypotheses, often referred to, in general, as th...
متن کاملPhosphates from detergents and eutrophication of surface water ecosystem in India
Eutrophication, regarded as the most immediate environmental consequence of extensive phosphorus usage in contemporary societies, has received wide attention. If the current level of human-induced global environmental impacts continues, there is a chance of occurrence of nearly 2.4–2.7-fold increase in nitrogen and phosphorus driven eutrophication of terrestrial, freshwater and marine ecosystem...
متن کاملPeptergents: peptide detergents that improve stability and functionality of a membrane protein, glycerol-3-phosphate dehydrogenase.
Toward enhancing in vitro membrane protein studies, we have utilized small self-assembling peptides with detergent properties ("peptergents") to extract and stabilize the integral membrane flavoenzyme, glycerol-3-phosphate dehydrogenase (GlpD), and the soluble redox flavoenzyme, NADH peroxidase (Npx). GlpD is a six transmembrane spanning redox enzyme that catalyzes the oxidation of glycerol-3-p...
متن کاملProtection of Watersheds, and Control and Responsible use of Fertiliser to Prevent Phosphate Eutrophication of Reservoirs
Because of its unique chemical structure, water dissolves almost any substance and thus is easily polluted. Environmental pollution continues to escalate in emerging economies such as in Sri Lanka. This is aggravated by anthropogenic activities, including deforestation, soil erosion, and irresponsible use of agrochemicals, and overuse of phosphate fertiliser. The latter has led to leaching of l...
متن کاملToxicity of Zeolite Containing Detergents
Introduction – Eutrophication is a serious problem This article compares the toxic effects of detergents of different types on aquatic organisms and is intended to outline the research comparing the toxicity of phosphate detergents with the toxicity of zeolite ones. Particular attention is given to the comparison of zeolitic and phosphate detergents. Phosphates are an important component in syn...
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ژورنال
عنوان ژورنال: Science
سال: 1972
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.177.4051.816