상세 정보

underline
Metadata Downloads : dc(xml) or Excel
Cited 0 time in scopus ci

Title 

Overexpression of CuZnSOD and APX enhance salt stress tolerance in sweet potato

Authors 

H YanQ LiSumg-Chul ParkX WangY J LiuY G ZhangW TangM KouD F Ma

Publisher 

Elsevier

Issue Date 

2016

Citation 

Plant Physiology & Biochemistry, vol. 109, no. 0, pp. 20-27

Keywords 

APXCuZnSODSalt stressSweet potatoTransgenic plants

Abstract 

Abiotic stresses cause accumulation of reactive oxygen species (ROS) in plants, CuZnSOD and APX are first line defenses against ROS caused by oxidative stress. In this study, CuZnSOD and APX were transferred into salt sensitive sweet potato (cv. Xushu 55?2) under control of stress inducible SWPA2 promoter and tolerance to salt stress was evaluated. When 100?mM NaCl was used to treat stem cuttings, transgenic plants showed enhanced tolerance compared to wild type (WT) plants. Rooting was significantly retarded in WT plants whereas all transgenic plants had significantly enhanced root growth under salt stress. Integration of SOD gene was confirmed by southern blot analysis, and the copy number ranged from 1 to 3. The expression levels of CuZnSOD and APX in transgenic plants were significantly increased up to 13.3 and 7.8 folds to WT under salinity conditions, respectively. SOD and APX activity and ROS staining showed enzyme activities of transgenic plants were increased under salt stress. These results show that CuZnSOD and APX have important roles in enhancing the salt tolerance of sweet potato

ISSN 

0981-9428

Link 

http://dx.doi.org/10.1016/j.plaphy.2016.09.003

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


There are no files associated with this item.
qrcode

FusionCharts.
DSpace Software Coptright(c) 2010 MIT and Hewleft-Packard  /  KRIBB-REPOSITORY ( Email:jakim@kribb.re.kr)