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Localisation and expression of zeaxanthin epoxidase mRNA in Arabidopsis in response to drought stress and during seed development

Archive ouverte | Audran, C. | CCSD

Abscisic acid (ABA) is involved in seed development and plant adaptation to environmental stresses. ABA is synthesized from cleaved xanthophylls and zeaxanthin epoxidase (ZEP) is the enzyme responsible for the conversion of zeaxan...

Molecular identification of zeaxanthin epoxidase of Nicotiana plumbaginifolia, a gene involved in abscisic acid biosynthesis and corresponding to the ABA locus of Arabidopsis thaliana

Archive ouverte | Marin, Emmanuelle | CCSD

International audience. Abscisic acid (ABA) is a plant hormone which plays an important role in seed development and dormancy and in plant response to environmental stresses. An ABA-deficient mutant of Nicotiana plu...

N. plumbaginifolia zeaxanthin epoxidase transgenic lines have unaltered baseline ABA acuumulations in roots and xylem sap, but contrasting sensitivities of ABA accumulation to water deficit

Archive ouverte | Borel, C. | CCSD

International audience. A series of transgenic lines of Nicotiana plumbaginifolia with modified expression of zeaxanthin epoxidase gene ( ZEP ) provided contrasting ABA accumulation in roots and xylem sap. For mild ...

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