Effects of Spermidine on Antioxidant Enzyme Activity and Na+ Homeostasis of Seedlings Roots of Huanghuazhan Rice under Salt Stress
Received date: 2022-09-08
Online published: 2023-03-14
The effects of exogenous spermidine （Spd） on rice seedling growth, antioxidant enzyme activity, reactive oxygen species （ROS） metabolism, malonic dialdehyde （MDA） and Na+ homeostasis were studied with rice variety Huanghuazhan as the material. The results showed that the content of ROS、·O2-、H2O2、Na+ and MDA were significantly increased in the root of rice seedlings by treated with 100 mmol·L-1 NaCl, meanwhile, the activities of catalase （CAT） and peroxidase （POD） were remarkably reduced. However, the activities of CAT and POD were significantly enhanced by using 0.1 mmol·L-1 Spd, and the content of ROS、·O2-、H2O2、Na+ and MDA were remarkably decreased. So, the damage of Na+ toxicity and membrane oxidation were alleviated, the stability of biofilm system was protected, and the steady state of cells was maintained with Spd under salt stress condition.
Key words： rice; exogenous spermidine; salt stress; antioxidant defense; Na+
HUANG Tingting, ZHENG Dianfeng, FENG Naijie, ZHAO Liming, ZHOU Hongkai, SHEN Xuefeng . Effects of Spermidine on Antioxidant Enzyme Activity and Na+ Homeostasis of Seedlings Roots of Huanghuazhan Rice under Salt Stress[J]. China Rice, 2023 , 29(2) : 43 -47 . DOI: 10.3969/j.issn.1006-8082.2023.02.009
| [1] | 杨劲松, 姚荣江, 王相平, 等. 中国盐渍土研究:历程、现状与展望[J]. 土壤学报, 2022, 59(1):10-27. |
| [2] | 侯红燕, 董晓亮, 周红, 等. 滨海盐碱地不同氮肥用量对水稻干物质转运及稻米品质的影响[J]. 中国稻米, 2021, 27(1):27-31. |
| [3] | ZHANG X X, SHI Z Q, TIAN Y J, et al. Salt stress increases content and size of glutenin macropolymers in wheat grain[J]. Food Chemistry, 2016, 197: 516-521. |
| [4] | 王洋, 张瑞, 刘永昊, 等. 水稻对盐胁迫的响应及耐盐机理研究进展[J]. 中国水稻科学, 2022, 36(2):105-117. |
| [5] | 王盼盼. NaCl胁迫下海水稻原生境种质HD961苗期生理及代谢组学分析[D]. 湛江: 广东海洋大学, 2021. |
| [6] | 刘玲, 冯乃杰, 郑殿峰, 等. 叶喷海藻酸钠寡糖对盐胁迫下水稻幼苗抗逆性及生理特性的影响[J]. 生态学杂志, 2022,doi: 10.13292/j.1000-4890.202209.013. |
| [7] | 李瑶, 郑殿峰, 冯乃杰, 等. 调环酸钙对盐胁迫下水稻幼苗生长及抗性生理的影响[J]. 植物生理学报, 2021, 57(10):1897-1 906. |
| [8] | 张灵, 陶亚军, 方琳, 等. 植物多胺的代谢与生理研究进展[J]. 植物生理学报, 2020, 56(10):2029-2 039. |
| [9] | 王燕, 刘青, 华春, 等. 外源亚精胺对盐胁迫下水稻根系抗氧化酶活性的影响[J]. 西北农业学报, 2009, 18(6):161-165. |
| [10] | 海霞, 米俊珍, 赵宝平, 等. 外源亚精胺对盐胁迫下燕麦幼苗生长及生理特性的影响[J]. 西北植物学报, 2021, 41(6):1003-1 011. |
| [11] | 侯君杰. 外源亚精胺缓解盐胁迫对水稻光合性能影响的机理研究[D]. 南京: 南京师范大学, 2021. |
| [12] | 邹芳, 王志恒, 杨秀柳, 等. 外源亚精胺对盐胁迫下甜高粱(Sorghum bicolor)幼苗的影响[J]. 分子植物育种, 2020, 18(8):2721-2 727. |
| [13] | CHEN Y, MO H Z, ZHENG M Y, et al. Selenium inhibits root elongation by repressing the generation of endogenous hydrogen sulfide in Brassica rapa[J]. PLoS One, 2014, 9: e110904. |
| [14] | WANG T T, SHI Z Q, HU L B, et al. Thymol ameliorates cadmium-induced phytotoxicity in the root of rice (Oryza sativa) seedling by decreasing endogenous nitric oxide generation[J]. Journal of Agricultural and Food Chemistry, 2017, 65: 7 396-7 405. |
| [15] | 黄洁, 黄晶, 梁青铎, 等. 盐胁迫对粳稻品种生长和生理特性的影响[J]. 中国稻米, 2021, 27(3):37-40. |
| [16] | 刘丹, 刘美艳, 孙健, 等. 亚精胺提高玉米幼苗抗寒性的研究[J]. 玉米科学, 2021, 29(4):56-61. |
| [17] | 徐芬芬, 韦蓉香. NAA对盐胁迫下水稻根系生长的缓解效应[J]. 杂交水稻, 2020, 35(2):75-77. |
| [18] | 姚栋萍, 吴俊, 胡忠孝, 等. 水稻耐盐碱的生理机制及育种策略[J]. 杂交水稻, 2019, 34(4):1-7. |
| [19] | DEINLEIN U, STEPHAN A B, HORIE T, et al. Plant salt-tolerance mechanisms[J]. Trends in Plant Science, 2014, 19: 371-379. |
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