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Differences in amino acid transport in isonuclear lines of cytoplasmic male-sterile and male-fertile petunia



Differences in amino acid transport in isonuclear lines of cytoplasmic male-sterile and male-fertile petunia



Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 84(1-2): 92-96



Two pairs of isonuclear lines of cytoplasmic male-sterile (CMS) and fertile (F) petunia cells grown in suspension culture in the presence or absence of amino acid sources were examined for uptake of 11 amino acids and adenosine. Cells from CMS lines exhibited a significant lower rate of uptake than F cells. These differences, for various amino acids, are a result of lower affinity (high Km) values and of lower maximal velocities. Although the uptake of most of the amino acids examined was affected by the availability of energy in the cell, the differences in uptake seem to be less dependent on the energy status of the cell.

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Accession: 002072269

Download citation: RISBibTeXText

PMID: 24203033

DOI: 10.1007/BF00223986


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