منابع مشابه
The biosynthesis of D-apiose in Lemna minor.
Lemna minor incorporates radioactivity from n-glucose-l14C, D-glucose-2-*4C, D-glucose-3 ,4-r4c, D-glucose-6-14C, sodium acetate-Z-14C, DL-serine-3-14C, and L-methionine-14CH8 into the n-apiose moiety of cell wall polysaccharide. The mechanism of biosynthesis of this hydroxymethyltetrose was studied by determining the distribution of 14C in n-apiose after feeding various labeled precursors. Lab...
متن کاملThe Turnover of Nucleic Acids in Lemna minor.
A method is described for measuring the rate constants of both synthesis and degradation of nucleic acids in sterile growing cultures of Lemna minor which avoids the difficulties of environmental changes in isotope uptake and precursor pool size. In fast growing cultures the half-life of ribosomal RNA has been estimated to be between 5 and 8 days.This half-life has been shown to consist of two ...
متن کاملThe Phosphorylation of Ribosomal Protein in Lemna minor.
Sterile cultures of Lemna minor have been labeled with (32)P(1), and the ribosomal proteins have been examined for radioactivity. In relatively short term labeling a radioactive protein was found which ran as a single component in both urea/acetic acid and sodium lauryl sulfate gel electrophoresis. Acid hydrolysis of the labeled protein permitted the isolation of serine phosphate. After labelin...
متن کاملsurvey on the rule of the due & hindering relying on the sheikh ansaris ideas
قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...
15 صفحه اولthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1955
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.30.6.535