Unresponsiveness of Euplotes focardii hsp70 genes to thermal stress

A ciliate, Euplotes focardii, endemic in low-bottom sea waters of Antarctic coasts was shown to possess heat-shock genes of the universally conserved family hsp70 that remain trascriptionally inert in heat-shocked cells. Yet these genes appeared to be represented by thousands of copies in the functi...

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Bibliographic Details
Published in:Italian Journal of Zoology
Main Authors: LA TERZA, Antonietta, PAPA G, MICELI, Cristina, ALIMENTI, Claudio, LUPORINI, Pierangelo
Other Authors: Papa, G, Miceli, Cristina, Alimenti, Claudio, Luporini, Pierangelo
Format: Article in Journal/Newspaper
Language:English
Published: 2000
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Online Access:http://hdl.handle.net/11581/117170
https://doi.org/10.1080/11250000009356364
Description
Summary:A ciliate, Euplotes focardii, endemic in low-bottom sea waters of Antarctic coasts was shown to possess heat-shock genes of the universally conserved family hsp70 that remain trascriptionally inert in heat-shocked cells. Yet these genes appeared to be represented by thousands of copies in the functional genome that is carried in the cell somatic (macro)nucleus, and constitutively expressed in cells growing under standard temperature conditions in a cold room. It was suggested that these findings reflect a long evolutionary existence that E. focardii has spent in an environment unique for its permanent thermal stability at subzero temperature.