Zhuohui Zhang, Xuemei Hou, Rong Gao, Yihua Li, Zhiqi Ding, Yi Huang, Kangding Yao, Yandong Yao, Cheng Liang, Weibiao Liao
Salt stress is one of the major factors limiting plant growth and productivity. Many studies have shown that serine hydroxymethyltransferase (SHMT) gene play an important role in growth, development and stress response in plants. However, to date, there have been few studies on whether SHMT3 can enhance salt tolerance in plants. Therefore, the effects of overexpression or silencing of CsSHMT3 gene on cucumber seedling growth under salt stress were investigated in this study. The results showed that overexpression of CsSHMT3 gene in cucumber seedlings resulted in a significant increase in chlorophyll content, photosynthetic rate and proline (Pro) content, and antioxidant enzyme activity under salt stress condition; whereas the content of malondialdehyde (MDA), superoxide anion (H2 O2 ), hydrogen peroxide (O2 ·- ) and relative conductivity were significantly decreased when CsSHMT3 gene was overexpressed...
May 2, 2024: Plant Molecular Biology