Concomitant Changes in High Temperature Tolerance and Heat-Shock Proteins in Desert Succulents | Zendy

S. Chuan Kee | Zendy; Park S. Nobel | Zendy

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Concomitant Changes in High Temperature Tolerance and Heat-Shock Proteins in Desert Succulents

Author(s) -

S. Chuan Kee,

Park S. Nobel

Publication year - 1986

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.80.2.596

Subject(s) - concomitant , heat shock protein , heat shock , shock (circulatory) , chemistry , biology , microbiology and biotechnology , biochemistry , medicine , gene

Raising the day/night air temperatures from 30 degrees C/20 degrees C to 50 degrees C/40 degrees C increases the high temperature tolerated by Agave deserti, Carnegiea gigantea, and Ferocactus acanthodes by 6 degrees C to 8 degrees C; the increase is about half completed in 3 days and fully completed in 10 days. A 25 to 27 kilodalton protein concomitantly accumulates for all three desert succulents upon transfer to 50 degrees C/40 degrees C, while accumulation of other heat "heat-shock" proteins is species specific. Some of the induced proteins are more abundant at 3 days, while others (including the 25-27 kilodalton protein) remain after completion of high temperature acclimation.

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