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International Journal on Algae

Publicado 4 números por año

ISSN Imprimir: 1521-9429

ISSN En Línea: 1940-4328

SJR: 0.168 SNIP: 0.377 CiteScore™:: 0.6 H-Index: 11

Indexed in

The Influence of High Temperature on Cells of Dunaliella viridis (Teod.) (Chlorophyta) Sensitive and Resistant to Copper Ions

Volumen 13, Edición 3, 2011, pp. 203-222
DOI: 10.1615/InterJAlgae.v13.i3.10
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SINOPSIS

The protein synthesis activity, the content of nucleic acids and lipids in the microalga Dunaliella viridis cells sensitive (CuS-cultures) and resistant (CuR-cultures) to copper ions are studied. It is found that the formation of cell resistance to higher copper concentrations are accompanied by the formation of epigenotype differing from the control culture and characterizing by: a) the decreasing total RNA and ribosomal RNA content; b) the decreasing protein synthesis activity and protein content; c) the decreasing protein 70 kDa fraction and the increasing protein 35 kDa fraction; d) the increasing lipid content in cytosol (3−10 times for different lipid fractions). It has been shown that cells of D. viridis CuR-culture possess higher resistance to the short-term effect of high temperature as compared to CuS-culture. The higher thermal resistance of D. viridis CuR-culture correlated not only with a decrease in the content of ribosomes and protein but also with a high content of copper ions in cells.

CITADO POR
  1. Bozhkov A. I., Kovaleva M. K., Menzyanova N. G., Kuznetsova Y. A., The Rate of Aging of the <i>Dunaliella viridis</i> Teodor. Culture Depends on the Algae Pre-Adaptation to Copper Sulfate Toxic Effect, Advances in Aging Research, 03, 02, 2014. Crossref

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