湖北农业科学 ›› 2021, Vol. 60 ›› Issue (3): 93-95.doi: 10.14088/j.cnki.issn0439-8114.2021.03.017

• 畜牧·兽医 • 上一篇    下一篇

2,4-表油菜素内酯对紫花苜蓿高温胁迫生理特性的影响

黄一龙, 庞天德, 史静, 韦锦益, 姚娜   

  1. 广西壮族自治区畜牧研究所,南宁 530001
  • 收稿日期:2020-06-22 发布日期:2021-02-25
  • 通讯作者: 姚 娜(1983-),女,研究员,硕士,主要从事热带、亚热带牧草开发与利用的研究工作,(电话)13977122046(电子信箱)yaona0115@sina.com。
  • 作者简介:黄一龙(1988-),男,广西横县人,研究实习员,主要从事热带、亚热带牧草开发与利用的研究工作,(电话)13557588338 (电子信箱)275546415@qq.com
  • 基金资助:
    广西科技攻关计划项目(15248003-21); 广西创新驱动重大专项(桂科AA18118041, 桂科AA18118041-2); 广西农业科技项目(Z202052)

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

HUANG Yi-long, PANG Tian-de, SHI Jing, WEI Jin-yi, YAO Na   

  1. The Animal Husbandry Institute of Guangxi Zhuang Autonomous Region, Nanning 530001, China
  • Received:2020-06-22 Published:2021-02-25

摘要: 为了探究外源激素2, 4-表油菜素内酯(EBR)对紫花苜蓿(Medicago sativa L.)耐热性能的影响,试验以紫花苜蓿WL525为材料,研究高温环境下喷施不同浓度2,4-表油菜素内酯对紫花苜蓿生理特性的影响。结果表明,高温胁迫下,当EBR喷施浓度为0.50 mg/L时,可以明显提高脯氨酸含量,减缓可溶性蛋白质的流失,维持植物较高的抗氧化活性。由此可见,通过施用外源激素2,4-表油菜素内酯,可以在一定程度上缓解高温胁迫对紫花苜蓿的热伤害。

关键词: 高温胁迫, 紫花苜蓿(Medicago sativa L.), 2, 4-表油菜素内酯, 生理特性

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

中图分类号: