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Overexpression of rice NAC gene SNAC1 improves drought and salt tolerance by enhancing root development and reducing transpiration rate in transgenic cotton

PloS one, 2014-01, Vol.9 (1), p.e86895 [Peer Reviewed Journal]

COPYRIGHT 2014 Public Library of Science ;COPYRIGHT 2014 Public Library of Science ;2014 Liu et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2014 Liu et al 2014 Liu et al ;ISSN: 1932-6203 ;EISSN: 1932-6203 ;DOI: 10.1371/journal.pone.0086895 ;PMID: 24489802

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Title:
Overexpression of rice NAC gene SNAC1 improves drought and salt tolerance by enhancing root development and reducing transpiration rate in transgenic cotton
Author: Liu, Guanze ; Li, Xuelin ; Jin, Shuangxia ; Liu, Xuyan ; Zhu, Longfu ; Nie, Yichun ; Zhang, Xianlong
Zhang, Jinfa
Subjects: Abiotic stress ; Acetylcysteine ; Agricultural production ; Agriculture ; Agrobacterium tumefaciens ; Arabidopsis ; Biology ; Biomass ; Climate change ; Cotton ; Crops ; DNA binding proteins ; Drought ; Droughts ; Flowering ; Genes ; Genes, Plant ; Genetic engineering ; Genetic transcription ; Genetic Vectors ; Genetically altered foods ; Genetically modified crops ; Gossypium - drug effects ; Gossypium - genetics ; Gossypium - growth & development ; Gossypium - physiology ; Gossypium hirsutum ; Growth conditions ; Hydroponics ; Laboratories ; Oryza ; Oryza - drug effects ; Oryza - genetics ; Phenotype ; Photosynthesis ; Photosynthesis - drug effects ; Plant Proteins - genetics ; Plant Proteins - metabolism ; Plant Roots - drug effects ; Plant Roots - growth & development ; Plant Transpiration - drug effects ; Plant Transpiration - physiology ; Plants, Genetically Modified ; Proline ; Rice ; Root development ; Salinity ; Salt tolerance ; Salt-Tolerance - drug effects ; Salt-Tolerance - genetics ; Salts ; Seedlings ; Seedlings - drug effects ; Seedlings - genetics ; Signal transduction ; Sodium chloride ; Sodium Chloride - pharmacology ; Stress, Physiological - drug effects ; Tobacco ; Transcription (Genetics) ; Transcription factors ; Transformation ; Transformation, Genetic - drug effects ; Transgenic plants ; Transpiration ; Triticum ; Wheat
Is Part Of: PloS one, 2014-01, Vol.9 (1), p.e86895
Description: The SNAC1 gene belongs to the stress-related NAC superfamily of transcription factors. It was identified from rice and overexpressed in cotton cultivar YZ1 by Agrobacterium tumefaciens-mediated transformation. SNAC1-overexpressing cotton plants showed more vigorous growth, especially in terms of root development, than the wild-type plants in the presence of 250 mM NaCl under hydroponic growth conditions. The content of proline was enhanced but the MDA content was decreased in the transgenic cotton seedlings under drought and salt treatments compared to the wild-type. Furthermore, SNAC1-overexpressing cotton plants also displayed significantly improved tolerance to both drought and salt stresses in the greenhouse. The performances of the SNAC1-overexpressing lines under drought and salt stress were significantly better than those of the wild-type in terms of the boll number. During the drought and salt treatments, the transpiration rate of transgenic plants significantly decreased in comparison to the wild-type, but the photosynthesis rate maintained the same at the flowering stage in the transgenic plants. These results suggested that overexpression of SNAC1 improve more tolerance to drought and salt in cotton through enhanced root development and reduced transpiration rates.
Publisher: United States: Public Library of Science
Language: English
Identifier: ISSN: 1932-6203
EISSN: 1932-6203
DOI: 10.1371/journal.pone.0086895
PMID: 24489802
Source: Geneva Foundation Free Medical Journals at publisher websites
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PubMed Central
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Overexpression of rice NAC gene SNAC1 improves drought and salt tolerance by enhancing root development and reducing transpiration rate in transgenic cotton

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