Small heat shock proteins organization

Virtually all organisms respond to a brief exposure to a normally damaging temperature or a more prolonged exposure to elevated but not damaging temperature by synthesizing a small number of highly conserved proteins, the heat-shock proteins (10). In plants, several of these nuclear-encoded heat shock proteins are localized in chloroplasts (11). We have found that a heat-shock pretreatment confers some protection against the heat-induced loss of PSII function. 

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