The Turnover of Nucleic Acids in Lemna minor

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The 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 کامل

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 کامل

The 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 کامل

Turnover of Nucleic

It was suggested to us by Dr R. B. Loftfield that the most likely explanation for the excess of labelling in the presence of L-[14C]leucine is the presence of small quantities of other amino acids. This point does, however, need further examination. The importance of cell-sap RNA in the specific selection of amino acids before their incorporation into the peptide-chain sequence is further empha...

متن کامل

the effect of the record infancy in crimilly acts of guilties (in karaj city)

چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...

15 صفحه اول

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Plant Physiology

سال: 1970

ISSN: 0032-0889,1532-2548

DOI: 10.1104/pp.45.6.742