湖北农业科学 ›› 2024, Vol. 63 ›› Issue (9): 216-220.doi: 10.14088/j.cnki.issn0439-8114.2024.09.036

• 生物工程 • 上一篇    下一篇

多倍体水稻DHF-CBS基因的抗旱性鉴定

葛杰1, 何玉池2, 展帆1, 李之龙1   

  1. 1.新疆农业大学生命科学学院/农业生物技术重点实验室,乌鲁木齐 830052;
    2.湖北大学生命科学学院,武汉 430062
  • 收稿日期:2023-04-17 出版日期:2024-09-25 发布日期:2024-09-30
  • 作者简介:葛 杰(1978-),女,新疆乌鲁木齐人,副教授,博士,主要从事植物抗逆分子生物学研究,(电话)17799659806(电子信箱)29257741@qq.com。
  • 基金资助:
    国家自然科学基金项目(32160494); 新疆农业大学大学生创新创业训练计划项目(dxscx2022068)

Identification of drought resistance of polyploid Oryza sativa L. DHF-CBS gene

GE Jie1, HE Yu-chi2, ZHAN Fan1, LI Zhi-long1   

  1. 1. College of Life Sciences/Key Laboratory of Agricultural Biotechnology, Xinjiang Agricultural University, Urumqi 830052, China;
    2. School of Life Sciences, Hubei University, Wuhan 430062, China
  • Received:2023-04-17 Published:2024-09-25 Online:2024-09-30

摘要: 为探究干旱胁迫下DHF-CBS基因调控多倍体水稻(Oryza sativa L.)的抗旱机制,选取2种水稻品种,分别为多倍体植株中花-11(DHF-CBS基因)、突变体植株UC-32(不表达DHF-CBS基因),对2种水稻的GUS化学染色结果、组织含水量、脱落酸(ABA)含量、硫代巴比妥酸活性物质(TBARS)含量、谷胱甘肽(GSH)含量等进行分析。结果表明,干旱胁迫第7天,中花-11仍有部分叶片保持绿色且坚挺,干旱胁迫第11天时整株叶片变黄,甚至有的叶片变枯,经过干旱胁迫后的表型观察发现,中花-11比UC-32的抗旱能力强;对水稻的含水量、ABA含量、TBARS含量、GSH含量进行分析,表明中花-11的抗旱性优于UC-32,说明DHF-CBS基因增强了水稻的抗旱能力。

关键词: 多倍体, 水稻(Oryza sativa L.), DHF-CBS基因, 抗旱性

Abstract: In order to explore the drought resistance mechanism of DHF-CBS gene regulation in polyploid Oryza sativa L. under drought stress, two varieties of Oryza sativa L. were selected, namely polyploid plant Zhonghua-11 (DHF-CBS gene) and mutant plant UC-32 (non expressing DHF-CBS gene),the GUS chemical staining results, tissue moisture content, abscisic acid (ABA) content, thiobarbituric acid reactive substance (TBARS) content, glutathione (GSH) content, etc. of two types of Oryza sativa L. were analyzed. The results showed that on the 7th day of drought stress, some leaves of Zhonghua-11 remained green and firm. On the 11th day of drought stress, the entire plant's leaves turned yellow, and some leaves even withered,after observing the phenotype under drought stress, it was found that Zhonghua-11 had stronger drought resistance than UC-32. Analysis of the water content, ABA content, TBARS content, and GSH content of Oryza sativa L. showed that the drought resistance of Zhonghua-11 was better than that of UC-32, indicating that the DHF-CBS gene enhanced the drought resistance of Oryza sativa L..

Key words: polyploid, Oryza sativa L., DHF-CBS gene, drought resistance

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