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Cytobios. 1997;92(369):91-8.

Heat shock gene expression during recovery after transient cold shock in Drosophila auraria (Diptera: Drosophilidae).

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  • 1Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Science, Aristotle University of Thessaloniki (AUTH), Greece.


Newly synthesized polypeptides during recovery from prolonged cold treatment (0 degree to -1 degree C) of Drosophila auraria, a montium subgroup species, of the melanogaster species group, were analysed in denaturing polyacrylamide gels. In addition, during the cold shock recovery period, Northern analysis of the hsp83 mRNA was performed. A significant induction of two polypeptides, which exhibited electrophoretic mobilities, with the heat inducible 83 and 70 kD hsp83 and hsp70 was detected, but no such induction was evident in the so-called 'small' hsp genes. These results are compared and discussed with those observed in D. melanogaster.

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