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- Title
Ectopic Expression of AtCIPK23 Enhances Tolerance Against Low-K Stress in Transgenic Potato.
- Authors
Wang, Xiyao; Li, Jia; Zou, Xue; Lu, Liming; Li, Liqin; Ni, Su; Liu, Fan
- Abstract
Potato ( Solanum tuberosum L.) has a relatively high requirement for potassium (K). In the face of the declining of potato yield and quality as a result of reduction of soil K content, it is necessary to determine how to improve the tolerance of potatoes to low-K stresses. The protein kinase AtCIPK23 is essential for K uptake, and its overexpression significantly enhances K uptake and tolerance to low-K in Arabidopsis. In this research, AtCIPK23 was transformed into an E3 potato cultivar successfully. In low-K conditions, the transgenic potato lines had lower levels of leaf chlorosis, higher K uptake rate, increased dry weight and K content. The non-transgenic lines displayed reduced stature while the transgenic lines exhibited sustained growth. These results indicate that ectopic expression of AtCIPK23 increases low-K tolerance in potato. This study demonstrated the potential use of the transgenic approach to increase potato production in low-K fields.
- Publication
American Journal of Potato Research, 2011, Vol 88, Issue 2, p153
- ISSN
1099-209X
- Publication type
Article
- DOI
10.1007/s12230-010-9173-0