Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/110209
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Expressing Arabidopsis thaliana V-ATPase subunit C in barley (Hordeum vulgare) improves plant performance under saline condition by enabling better osmotic adjustment |
Author: | Adem, G. Roy, S. Huang, Y. Chen, Z.-H. Wang, F. Zhou, M. Bowman, J. Holford, P. Shabala, S. |
Citation: | Functional Plant Biology: an international journal of plant function, 2017; 44(12):1147-1159 |
Publisher: | CSIRO Publishing |
Issue Date: | 2017 |
ISSN: | 1445-4408 1445-4416 |
Statement of Responsibility: | Getnet D. Adem, Stuart J. Roy, Yuqing Huang, Zhong-Hua Chen, Feifei Wang, Meixue Zhou, John P. Bowman, Paul Holford and Sergey Shabala |
Abstract: | Salinity is a global problem affecting agriculture that results in an estimated US$27 billion loss in revenue per year. Overexpression of vacuolar ATPase subunits has been shown to be beneficial in improving plant performance under saline conditions. Most studies, however, have not shown whether overexpression of genes encoding ATPase subunits results in improvements in grain yield, and have not investigated the physiological mechanisms behind the improvement in plant growth. In this study,we constitutively expressed Arabidopsis Vacuolar ATPase subunitC(AtVHA-C) in barley. Transgenic plants were assessed for agronomical and physiological characteristics, such as fresh and dry biomass, leaf pigment content, stomatal conductance, grain yield, and leaf Na+ and K+ concentration, when grown in either 0 or 300mM NaCl. When compared with non-transformed barley, AtVHA-C expressing barley lines had a smaller reduction in both biomass and grain yield under salinity stress. The transgenic lines accumulated Na+ and K+ in leaves for osmotic adjustment. This in turn saves energy consumed in the synthesis of organic osmolytes that otherwise would be needed for osmotic adjustment. |
Keywords: | Organic osmolytes; osmotic adjustment; potassium; salinity stress tolerance; sodium; vacuolar sequestration |
Rights: | Journal compilation © CSIRO 2017 |
DOI: | 10.1071/FP17133 |
Grant ID: | http://purl.org/au-research/grants/arc/DE140101143 |
Published version: | http://dx.doi.org/10.1071/fp17133 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 8 |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.