Physiological and biochemical changes of CBF3 transgenic oat in response to salinity stress

Détails bibliographiques
Publié dans:	Plant science : an international journal of experimental plant biology. - 1985. - 185-186(2012) vom: 10. Apr., Seite 331-9
Auteur principal:	Oraby, Hesham (Auteur)
Autres auteurs:	Ahmad, Rashid
Format:	Article en ligne
Langue:	English
Publié:	2012
Accès à la collection:	Plant science : an international journal of experimental plant biology
Sujets:	Journal Article Research Support, Non-U.S. Gov't Arabidopsis Proteins DREB1A protein, Arabidopsis Plant Proteins RD29a protein, Arabidopsis Transcription Factors Sodium Chloride 451W47IQ8X

Description
Résumé:	Copyright © 2012 Elsevier Ireland Ltd. All rights reserved. Salinity is a major abiotic constraint affecting oat productivity. Several physiological and biochemical traits have been found to be related to yield maintenance under salinity. The impact of introducing the Arabidopsis CBF3 gene controlled by the rd29A stress-inducible promoter in T(2) transgenic oat on salinity tolerance and associated physiological changes were studied. Compared with the non-transgenic control, transgenic T(2) plants exhibited greater growth and showed significant maintenance of leaf area, relative water content, chlorophyll content, photosynthetic and transpiration rates as well as increased levels of proline and soluble sugars under high salt stress. These physiological changes delayed leaf-wilting symptoms, increased tolerance and reduced yield loss. At a salinity stress level of 100mM, the CBF3-overexpressing transgenic oat showed a yield loss of 4-11% compared with >56% for the non-transgenic control. These results demonstrate that stress-inducible over-expression of CBF3 may have the potential to enhance abiotic stress tolerance in oat
Description:	Date Completed 11.04.2013 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE
ISSN:	1873-2259
DOI:	10.1016/j.plantsci.2012.01.003