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Authors Yaish, MW
Author Full Name Yaish, M. W.
Title Proline accumulation is a general response to abiotic stress in the date palm tree (Phoenix dactylifera L.)
Source GENETICS AND MOLECULAR RESEARCH
Language English
Document Type Article
Author Keywords Proline; Salinity; Abiotic stress; Phoenix dactylifera L.
Keywords Plus SALT TOLERANCE; SALINITY TOLERANCE; GROWTH; EXPRESSION; SEEDLINGS
Abstract Plants exposed to certain abiotic stress conditions tend to produce the amino acid proline, which acts as an active osmolyte, a metal chelator, an antioxidant, and a signaling molecule. There is increasing evidence that proline accumulates in plants due to a wide range of abiotic stress, in particular high soil salinity and drought. Therefore, proline content is often used as a marker-assisted breeding tool aimed at improving drought and salinity tolerance. In this study, it was investigated whether proline accumulation in date palm (Phoenix dactylifera L.) seedlings occurs solely due to high salinity and drought stresses or due to other unspecified abiotic stresses, including salinity and salinity shock, drought, extreme temperatures, and abscisic acid. The free proline assays revealed that this amino acid over-accumulated in the roots and leaves of each stress-treated plant, and was remarkably high when leaves were exposed to suboptimum temperatures and salinity stress. These results indicate that the production of proline is a common response to various abiotic stresses and its differential accumulation cannot be used as a molecular marker in date palm breeding programs aimed at improving drought or salinity tolerance traits in date palms. This conclusion is consistent with the theory that the molecular outcomes of abiotic stresses are often non-specific.
Author Address Sultan Qaboos Univ, Coll Sci, Dept Biol, Muscat, Oman
Reprint Address Yaish, MW (corresponding author), Sultan Qaboos Univ, Coll Sci, Dept Biol, Muscat, Oman.
E-mail Address myaish@squ.edu.om
ResearcherID Number Yaish, Mahmoud/F-7168-2014
ORCID Number Yaish, Mahmoud/0000-0002-5171-3014
Funding Agency and Grant Number Research Council of Oman (TRC) [151]
Funding Text Research supported by a generous grant from the Research Council of Oman (TRC) (#151) to M.W. Yaish.
Times Cited 43
Total Times Cited Count (WoS, BCI, and CSCD) 43
Publisher FUNPEC-EDITORA
Publisher City RIBEIRAO PRETO
Publisher Address RUA FLORIANO PEIXOTO 2444, ALTO DA BOA VISTA, RIBEIRAO PRETO, SP 00000, BRAZIL
ISSN 1676-5680
29-Character Source Abbreviation GENET MOL RES
ISO Source Abbreviation Genet. Mol. Res.
Year Published 2015
Volume 14
Issue 3
Beginning Page 9943
Ending Page 9950
Digital Object Identifier (DOI) 10.4238/2015.August.19.30
Page Count 8
Web of Science Category Biochemistry & Molecular Biology; Genetics & Heredity
Subject Category Biochemistry & Molecular Biology; Genetics & Heredity
Document Delivery Number CS9OV
Unique Article Identifier WOS:000362421500141
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