Effects of 2,4-Epibrassinolide on physiological characteristics of alfalfa to high temperature

doi:10.14088/j.cnki.issn0439-8114.2021.03.017

Abstract

Abstract: In order to study the effects of exogenous 2,4-Epibrassinolide（EBR） on the heat tolerance of alfalfa（Medicago sativa L.）, taking alfalfa WL525 as the material, the effects of different concentrations of EBR on physiological characteristics of alfalfa under high temperature were studied. The results showed that under high temperature stress, when the concentration of EBR was 0.50 mg/L, the content of provine could be significantly increased, soluble protein loss could be slowed down, and antioxidant activity of plants could be maintained. Therefore, the heat damage of alfalfa to high temperature stress can be alleviated to a certain extent by applying exogenous EBR.

Key words: high temperature stress, alfalfa（Medicago sativa L.）, 2, 4-Epibrassinolide（EBR）, physiological property

CLC Number:

HUANG Yi-long, PANG Tian-de, SHI Jing, WEI Jin-yi, YAO Na. Effects of 2,4-Epibrassinolide on physiological characteristics of alfalfa to high temperature[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(3): 93-95.

References

[1] 徐海,宋波,顾宗福,等. 植物耐热机理研究进展[J].江苏农业学报,2020, 36(1):243-250.
[2] 周革,倪福太,张丽娟.植物在逆境中的形态结构及生理变化[J].吉林师范大学学报(自然科学版),2004, 5(2):64-67.
[3] 张哲,闵红梅,夏关均,等.高温胁迫对植物生理影响研究进展[J].安徽农业科学,2010,38(16): 8338-8339, 8342.
[4] 蒲珉锴,李英主,张劲,等. 紫花苜蓿耐热性研究进展[J].草学,2019(6):1-7.
[5] 任增斌,陈法志,舒常庆,等. 外源表油菜素内酯对牡丹耐热性的影响[J].江汉大学学报(自然科学版), 2018,46(5):446-453.
[6] 王震,朱磊,宋金亮,等.高温胁迫下2,4-表油菜素内酯对西葫芦幼苗生理及光合特性的影响[J].河南农业大学学报,2016,5(2):198-202.
[7] 李志鑫,李鑫,韩文炎.外源24-表油菜素内酯诱导茶树(Camellia sinensis L.)耐热性的生理机制[J].浙江农业学报,2016,28(6):959-965.
[8] 高健,王亚梁,孙磊,等.2,4-表油菜素内酯缓解水稻花期高温胁迫的生理机制[J].中国稻米,2019,25(3):70-74.
[9] 袁芳,詹玉娟,齐静静,等.高温胁迫下表油菜素内酯对除虫菊相关生理指标的影响[A].张启翔.中国观赏园艺研究进展[M].北京:中国林业出版社,2013.454-458.
[10] 万正林,罗庆熙,李立志.表油菜素内酯诱导番茄幼苗抗高温机理的研究[J].广西农业科学,2009,40(9):1203-1208.
[11] 吴雪霞,查丁石,朱宗文,等.外源24-表油菜素内酯对高温胁迫下茄子幼苗生长和抗氧化系统的影响[J].植物生理学报,2013,49(9):929-934.
[12] 李静,王俏俏,徐年军,等.24-表油菜素内酯对龙须菜抗高温胁迫的研究[J].海洋学报,2014,36(8):82-90.
[13] 陈建勋,王晓峰.植物生理学实验指导[M].广州:华南理工大学出版社,2000.
[14] 韩明鹏,高永革,王成章,等.高温胁迫对紫花苜蓿的影响及其适应机制的相关研究[J].基因组学与应用生物学,2010,29(3):563-569.
[15] 张晓霞,高永革,严学兵,等.紫花苜蓿抗热性鉴定与评价的研究进展[J].草业科学,2010,27(2):113-118.
[16] 张晓霞,高永革,郑春雷,等.紫花苜蓿越夏期的生理生化反应及评价[J].草业科学,2012,29(9):1407-1416.
[17] 袁有波,李继新,丁福章,等.干旱胁迫对烤烟叶片脯氨酸和可溶性蛋白含量的影响[J].安徽农业科学,2008,36(21):8891-8892.
[18] 华智锐,李小玲.EBR对小麦幼苗抗旱性的诱导效应[J].江苏农业科学,2017,45(1):62-65.