NDLI: Short-term response of wild grapevines (Vitis vinifera L. ssp. sylvestris) to NaCl salinity exposure: changes of some physiological and molecular characteristics

Content Provider	Springer Nature Link
Author	Askri, Hend Daldoul, Samia Ammar, Anis Ben Rejeb, Saloua Jardak, Rahma Rejeb, Mohamed Nejib Mliki, Ahmed Ghorbel, Abdelwahed
Copyright Year	2011
Abstract	The physiological and molecular response to salt stress was studied in two wild grapevine (Vitis vinifera L. ssp. sylvestris or Vitis sylvestris) accessions “Khédhayria” and “Houamdia”, previously identified as salt-tolerant and salt-sensitive pair wise. Plants from both accessions were subjected to a progressive salt stress by the use of a nutritional solution containing up to 150 mM NaCl for 2 weeks. Salt stress adversely affected growth and water potential since the first day of exposure to 150 mM NaCl. However, chlorophyll fluorescence parameters were unchanged until 14 days of salt exposure. At that time point the predawn water potential (Ψ$_{PD}$), the non-photochemical quenching of fluorescence (NPQ) and the coefficient of photochemical quenching (q$_{p}$) were significantly less altered in the tolerant accession. At the molecular level semi-quantitative RT-PCR assays revealed a differential expression of (Vs α-gal/SIP and Vs DHN) genes within these contrasting accessions after exposure to 24 h and 14 days of salt. Comparably, the Vs RD22 gene had increased slightly after only 14 days of treatment in both accessions. These results were the first pieces of information reported on the early and late regulation of salt response genes in wild grapevines. Furthermore, genotype-dependent parameters such as NPQ, q$_{p}$, mRNA levels of Vs α-gal/SIP and Vs DHN could be used to screen salt-tolerant wild grapevine genotypes.
Starting Page	957
Ending Page	968
Page Count	12
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	34
Issue Number	3
e-ISSN	18611664
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-11-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Wild grapevines Salt stress Chlorophyll fluorescence Salt-responsive genes RT-PCR Plant Physiology Plant Biochemistry Plant Pathology Plant Genetics & Genomics Plant Anatomy/Development Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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