Identification and expression of the Cucurbita WRKY transcription factors in response to water deficit and salt stress
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Other documents of the author: Bankaji, Insaf; SLEIMI, Noomene; Vives, Vicente; Gomez-Cadenas, Aurelio; Perez-Clemente, Rosa Maria
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comunitat-uji-handle2:10234/2508
comunitat-uji-handle3:10234/6999
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Title
Identification and expression of the Cucurbita WRKY transcription factors in response to water deficit and salt stressAuthor (s)
Date
2019-10-15Publisher
ElsevierISSN
0304-4238Bibliographic citation
BANKAJI, Insaf, et al. Identification and expression of the Cucurbita WRKY transcription factors in response to water deficit and salt stress. Scientia Horticulturae, 2019, vol. 256, p. 108562Type
info:eu-repo/semantics/articlePublisher version
https://www.sciencedirect.com/science/article/pii/S0304423819304510Version
info:eu-repo/semantics/acceptedVersionSubject
Abstract
WRKY transcription factors (TFs) have been reported to play
important roles in plant responses to various stress conditions. Although
several studies on the genomic organization of the WRKY gene family in
various ... [+]
WRKY transcription factors (TFs) have been reported to play
important roles in plant responses to various stress conditions. Although
several studies on the genomic organization of the WRKY gene family in
various species have been reported, the information related to the genus
Cucurbita is scarce, and null in the case of Cucurbita pepo. The present
study aimed to examine the response of Cucurbita pepo to water deficit
and salt stress. Additionally, WRKY gene family has been identified and
characterized in this species. Shoot growth was negatively affected by
both adverse situations. Similarly, both salt and water stress conditions
reduced transpiration and stomatal conductance in C. pepo plants.
However, the quantum efficiency of PSII decreased only in those plants
exposed to salt stress. The increase in proline concentration recorded in
C. pepo plants subjected to salt or drought stress point out the
important role of this amino acid for plant tolerance to both stress
conditions.
Based on the genome sequence, 95 CmWRKY genes were found and classified
into three main groups according to their orthologues in Arabidopsis.
Among these, 24 and 14 CmWRKY genes were responsive to water and salt
stresses, respectively. Three water stress-responsive genes were upregulated
under the adverse condition. The expression of six CmWRKY genes
was induced by NaCl treatment. Therefore, a total of nine up-regulated
genes related to both stresses were identified, suggesting their putative
involvement in the plant response to water deficit and salt stress. [-]
Is part of
Scientia Horticulturae, 2019, vol. 256, p. 108562Investigation project
This work was supported by Ministerio de Economía y Competitividad (MINECO) and Universitat Jaume I through grants No. AGL2016-76574-R and UJI-B2016-23Rights
info:eu-repo/semantics/openAccess
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