华北农学报 ›› 2020, Vol. 35 ›› Issue (3): 184-192. doi: 10.7668/hbnxb.20190650

所属专题: 烟草 薯类作物 植物保护 生物技术

• 资源环境·植物保护 • 上一篇    下一篇

转马铃薯StPR1基因烟草抗病性及生理特性分析

贺付蒙1, 李秀钰1, 赵潇璨1, 武佳文1, 朱元芳1, 周磊1, 石奇海1, 刘娣2, 李凤兰1   

  1. 1. 东北农业大学 生命科学学院, 黑龙江 哈尔滨 150030;
    2. 黑龙江省农业科学院, 黑龙江 哈尔滨 150086
  • 收稿日期:2020-02-10 出版日期:2020-06-28
  • 通讯作者: 李凤兰(1973-),女,黑龙江哈尔滨人,副教授,博士,主要从事植物病理学研究;刘娣(1963-),女,吉林四平人,教授,博士,主要从事生物学研究。
  • 作者简介:贺付蒙(1995-),男,山东菏泽人,在读硕士,主要从事植物病理学研究。
  • 基金资助:
    国家自然基金青年科学基金项目(31201470);国家自然科学基金项目(J1210069);哈尔滨市应用科技研究与开发项目(2015RAQXJ021)

Analysis of Disease Resistance and Physiological Characteristics of Transgenic Tobacco with Solanum tuberosum StPR1 Gene

HE Fumeng1, LI Xiuyu1, ZHAO Xiaocan1, WU Jiawen1, ZHU Yuanfang1, ZHOU Lei1, SHI Qihai1, LIU Di2, LI Fenglan1   

  1. 1. College of Life Science, Northeast Agricultural University, Harbin 150030, China;
    2. Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
  • Received:2020-02-10 Published:2020-06-28

摘要: 为明确马铃薯StPR1基因在抗病中的作用,构建了植物表达载体pBI121-StPR1,并通过农杆菌转化法将StPR1基因导入烟草中,采用不同的致病菌对转基因烟草进行处理,对其抗病性及生理特性进行研究,包括细菌病害软腐病(胡萝卜软腐欧文氏菌、菊欧氏菌和胡萝卜软腐欧文氏菌马铃薯黑胫亚种)和青枯病(茄科雷尔氏菌)、真菌病害干腐病(接骨木镰孢、燕麦镰孢)致病菌。结果表明,接种致病菌后,转基因型烟草和野生型烟草叶片上的病斑直径会随着病菌胁迫时间的延长而增大,并且转基因型烟草病斑直径明显小于野生型烟草;在生理特性分析中,野生型烟草和转基因烟草叶片中生理指标都会随着病菌胁迫时间的延长而呈上升趋势,但转基因烟草SOD、POD和CAT活性较野生型烟草均有不同程度的提高。抗病性及生理特性分析结果均表明,转基因烟草对于致病细菌和真菌均具有更强的抗性,说明StPR1基因在马铃薯植物抗病中起着重要的作用,为PR1基因在植物的抗病方面提供了理论基础。

关键词: 马铃薯, StPR1, 烟草, 遗传转化, 抗病分析

Abstract: A plant expression vector pBI121 -StPR1 was constructed to clarify the role of potato StPR1 gene in disease resistance, and introduce StPR1 gene into tobacco by Agrobacterium transformation method. The disease resistance and physiological characteristics of transgenic tobacco were investigated using different pathogen treatment, including bacterial disease soft rot (E. carotovora subsp. Carotovora Borgey, Ecc; E. chrysanthemi Burkholder. Atroseptica Dye, Ech; E. carotovora subsp. Mc Fadden et Dimock, Eca), bacterial wilt (Ralstonia solanacearum, RS) and fungal disease dry rot (F. sambucinum, F. avenaceum). The results showed that the diameter of lesions leaves increased with the prolongation of stress time in transgenic tobacco and wild type (WT) under the pathogen stress, and the diameter of transgenic tobacco lesions were significantly smaller than WT. In the physiological characteristics analysis, the physiological indexes of leaves increased with the prolongation of stress time in WT and transgenic tobacco, but the activities of SOD, POD and CAT in transgenic tobacco were all increased to different degrees compared WT. The results of disease resistance and physiological characteristics showed that transgenic tobacco had stronger resistance to pathogenic bacteria and fungi, indicating that the StPR1 gene played an important role in the disease resistance of potato, which could provide a theoretical basis for PR1 gene resistance in plants.

Key words: Solanum tuberosum, StPR1, Tobacco, Genetic transformation, Disease resistance analysis

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引用本文

贺付蒙, 李秀钰, 赵潇璨, 武佳文, 朱元芳, 周磊, 石奇海, 刘娣, 李凤兰. 转马铃薯StPR1基因烟草抗病性及生理特性分析[J]. 华北农学报, 2020, 35(3): 184-192. doi: 10.7668/hbnxb.20190650.

HE Fumeng, LI Xiuyu, ZHAO Xiaocan, WU Jiawen, ZHU Yuanfang, ZHOU Lei, SHI Qihai, LIU Di, LI Fenglan. Analysis of Disease Resistance and Physiological Characteristics of Transgenic Tobacco with Solanum tuberosum StPR1 Gene[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(3): 184-192. doi: 10.7668/hbnxb.20190650.

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