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An Alcohol Dehydrogenase Gene from Synechocystis sp Confers Salt Tolerance in Transgenic Tobacco

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Title
An Alcohol Dehydrogenase Gene from Synechocystis sp Confers Salt Tolerance in Transgenic Tobacco
Author(s)
Yi, SY; Ku, SS; Hee-Jung Sim; Sang-Kyu Kim; Park, JH; Il Lyu, J; So, EJ; Choi, SY; Kim, J; Ahn, MS; Kim, SW; Park, H; Jeong, WJ; Lim, YP; Min, SR; Liu, JR
Subject
alcohol dehydrogenase, ; cyanobacteria, ; green leaf volatiles (GLVs), ; Z-3-hexenol, ; priming, ; salt tolerance
Publication Date
2017-11
Journal
FRONTIERS IN PLANT SCIENCE, v.8, pp.1965
Publisher
FRONTIERS MEDIA SA
Abstract
Synechocystis salt-responsive gene 1 (sysr1) was engineered for expression in higher plants, and gene construction was stably incorporated into tobacco plants. We investigated the role of Sysr1 [a member of the alcohol dehydrogenase (ADH) superfamily] by examining the salt tolerance of sysr1-overexpressing (sysr1-OX) tobacco plants using quantitative real-time polymerase chain reactions, gas chromatography-mass spectrometry, and bioassays. The sysr1-OX plants exhibited considerably increased ADH activity and tolerance to salt stress conditions. Additionally, the expression levels of several stress-responsive genes were upregulated. Moreover, airborne signals from salt-stressed sysr1-OX plants triggered salinity tolerance in neighboring wild-type (WT) plants. Therefore, Sysr1 enhanced the interconversion of aldehydes to alcohols, and this occurrence might affect the quality of green leaf volatiles (GLVs) in sysr1-OX plants. Actually, the Z-3-hexenol level was approximately twofold higher in sysr1-OX plants than in WT plants within 1-2 h of wounding. Furthermore, analyses of WT plants treated with vaporized GLVs indicated that Z-3-hexenol was a stronger inducer of stress-related gene expression and salt tolerance than E-2-hexenal. The results of the study suggested that increased C-6 alcohol (Z-3-hexenol) induced the expression of resistance genes, thereby enhancing salt tolerance of transgenic plants. Our results revealed a role for ADH in salinity stress responses, and the results provided a genetic engineering strategy that could improve the salt tolerance of crops. © 2017 Yi, Ku, Sim, Kim, Park, Lyu, So, Choi, Kim, Ahn, Kim, Park, Jeong, Lim, Min and Liu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
URI
https://pr.ibs.re.kr/handle/8788114/5798
DOI
10.3389/fpls.2017.01965
ISSN
1664-462X
Appears in Collections:
Center for Genome Engineering(유전체 교정 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
성과추가_1711_사사X_김상규_fpls-08-01965.pdfDownload

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