Title : Differential expression of two P5CS genes controlling proline accumulation during salt-stress requires ABA and is regulated by ABA1, ABI1 and AXR2 in Arabidopsis.

Pub. Date : 1997 Sep

PMID : 9351242






3 Functional Relationships(s)
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1 Differential expression of two P5CS genes controlling proline accumulation during salt-stress requires ABA and is regulated by ABA1, ABI1 and AXR2 in Arabidopsis. Salts delta1-pyrroline-5-carboxylate synthase 1 Arabidopsis thaliana
2 Induction of AtP5CS1 mRNA accumulation in salt-treated seedlings involves an immediate early transcriptional response regulated by ABA signalling that is not inhibited by cycloheximide, but abolished by the deficiency of ABA biosynthesis in the aba1 Arabidopsis mutant. Salts delta1-pyrroline-5-carboxylate synthase 1 Arabidopsis thaliana
3 Mutations abi1 and axr2, affecting ABA-perception in Arabidopsis, reduce the accumulation of both AtP5CS mRNAs during salt-stress, whereas ABA-signalling functions defined by the abi2 and abi3 mutations have no effect on salt-induction of the AtP5CS genes. Salts delta1-pyrroline-5-carboxylate synthase 1 Arabidopsis thaliana