Improved Drought and Salt Tolerance in Transgenic Nicotiana benthamiana by Overexpressing Sugarcane ScSEC14p Gene

被引：0
作者：
Yongjuan Ren
Huaying Mao
Weihua Su
Yachun Su
Chang Zhang
Mutian Shi
Youxiong Que
机构：
[1] Fujian Agriculture and Forestry University,Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, College of Agriculture
[2] Fujian Agriculture and Forestry University,Key Laboratory of Ministry of Education for Genetic, Breeding and Multiple Utilization of Crops, College of Agriculture
[3] Fujian Agriculture and Forestry University,College of Horticulture
来源：
Sugar Tech | 2021年 / 23卷
关键词：
Phosphatidylinositol transfer proteins (PITPs); Drought tolerance; Salt tolerance; Osmotic stress; Transgenic tobacco;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Plant phosphatidylinositol transfer proteins (PITPs) are involved in several cellular processes such as lipid metabolism, signal transduction, osmotic regulation, protein transport and stress response. In this study, the effects of sugarcane PITP gene ScSEC14p (accession no. MH899751) on drought and salt tolerance of transgenic Nicotiana benthamiana were evaluated along with the underlying mechanisms. The results showed that ScSEC14p gene effectively improved drought and salt tolerance of transgenic lines of N. benthamiana, as indicated by the increased germination rate and superoxide dismutase levels, as well as the decreased malondialdehyde level. In addition, the enhanced tolerance was closely related to the upregulation of stress-related genes and key genes in phosphatidylinositol pathway. It is revealed that the overexpression of ScSEC14p gene resulted in improved drought and salt tolerance of transgenic tobacco and also elucidated the underlying regulation mechanism by ScSEC14p in sugarcane.
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页码：326 / 335
页数：9
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