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  • Title: The abscisic acid influence on the gene expression of pro- and anti-apoptotic proteins in the leaves of cucumber plants at low temperatures.
    Author: Talanova VV, Titov AF, Repkina NS, Ignatenko AA.
    Journal: Dokl Biochem Biophys; 2017 Nov; 477(1):364-367. PubMed ID: 29297123.
    Abstract:
    We studied the effect of abscisic acid (ABA) on the expression of genes encoding the functional homologues of proapoptotic (CsBAX) and antiapoptotic (CsBI-1) proteins in cucumber leaves at low temperatures. The exposure to a hardening temperature of 12°C caused a slight increase in the level of CsBAX gene transcript and a sharp increase in the CsBI-1 gene transcript. At a damaging temperature of 4°C, the content of the CsBAX gene mRNA significantly increased, whereas the content of the CsBI-1 gene mRNA remained virtually unchanged. The treatment of seedlings with ABA reduced the release of electrolytes from cells and both 12 and 4°C, i.e., increased the cold resistance and simultaneously decreased the level of CsBAX gene transcripts, but drastically increased the content of CsBI-1 gene mRNA.
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