منابع مشابه
Model for Stress-induced Protein Degradation in Lemna minor.
Transfer of Lemna minor fronds to adverse or stress conditions produces a large increase in the rate of protein degradation. Cycloheximide partially inhibits stress-induced protein degradation and also partially inhibits the protein degradation which occurs in the absence of stress. The increased protein degradation does not appear to be due to an increase in activity of soluble proteolytic enz...
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 کاملThe effect of salinity and osmotic stress on duckweed Lemna minor L
The response of duckweed (Lemna minor L.) to salinity and osmotic stress was evaluated by monitoring growth and peroxidase activity every second day, for a period of 17 days. The nutrient medium was supplemented with isoosmolar concentrations of NaCl and mannitol (50 mM and 100 mM NaCl, 100 mM and 200 mM mannitol). Growth decreased markedly with increasing concentrations of NaCl and mannitol. T...
متن کاملPotential of Lemna minor in Ni and Cr removal from aqueous solution
Duckweeds are of special interest, as they are naturally growing weeds that have the capacity to tolerate and remove toxic pollutants, including heavy metals from the environment. Studies have revealed that duckweed (Lemna minor) can tolerate and remove heavy metals from aqueous solutions. In the present study, the efficiency of L. minor in the removal of Ni and Cr individually from aqueous sol...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1979
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.64.6.1109