陕西科技大学学报2024，Vol.42Issue(1)：19-27,44,10.
外源硫对Cd胁迫下番茄植株生长及抗逆代谢的影响
Effects of exogenous sulfur on the growth and resistance metabolism of tomato plants under Cd stress
摘要
Abstract
Sulfur(S),as a necessary macroelement,plays an important role in regulating plant growth and development,responding to abiotic stress.In this study,tomato seedlings were used to explore the effects of different concentrations of S on tomato plant growth and resist-ance metabolism under Cd stress.The results showed that plant growth significantly inhibi-ted and Cd stress effect was more significant under S-deficiency environment.1～4 mmol·L-1 S could significantly promote the biomass accumulation of tomato seedlings and alleviate the growth inhibition caused by Cd stress.Exogenous S significantly increased the contents of proline and soluble protein to alleviate Cd stress.In addition,Cd stress inhibi-ted the metabolism of nitrogen(N)and phosphorus(P)in tomato seedlings,and the occur-rence form and distribution of N and P in plants changed significantly.The addition of exoge-nous S could promote the metabolism of N and P in tomato seedlings by regulating the activi-ties of key enzymes of N metabolism and P metabolism,such as nitrate reductase,glutamine synthetase and acid phosphatase,reduce the toxic effect of Cd on plants.关键词
硫/Cd胁迫/抗逆代谢/番茄幼苗Key words
sulphur/cadmium stress/resistance metabolism/tomato seedlings分类
资源环境引用本文复制引用
贾红磊,王晴,陈翠,魏婷,张春平,吴广放..外源硫对Cd胁迫下番茄植株生长及抗逆代谢的影响[J].陕西科技大学学报,2024,42(1):19-27,44,10.基金项目
陕西省科技厅自然科学基础研究计划项目(2023-JC-YB-265) （2023-JC-YB-265）
