天津农学院学报 ›› 2022, Vol. 29 ›› Issue (3): 9-13.doi: 10.19640/j.cnki.jtau.2022.03.002

• 研究与简报 • 上一篇    下一篇

番茄愈伤组织筛选及抗逆突变体的获得

何远秦1, 许丁帆1, 刘艳军1,通信作者, 季核亮2, 赵丽丽1, 董洪雨1   

  1. 1.天津农学院 园艺园林学院,天津 300392;
    2.天津市耕耘种业股份有限公司,天津 300408
  • 收稿日期:2021-11-08 出版日期:2022-09-30 发布日期:2022-10-10
  • 通讯作者: 刘艳军(1970—),男,高级实验师,硕士,主要从事园艺植物组织培养和分子育种研究。E-mail:liuyanjun00a@126.com。
  • 作者简介:何远秦(1997—),男,硕士在读,主要从事植物组织培养研究。E-mail:18696390919@163.com。
  • 基金资助:
    天津市科技计划项目(18ZXBFNC00370); 河北省产业创新创业团队项目(199A2905H); 河北省创新能力提升计划项目(20566301D); 河北省中央引导地方科技发展资金项目(206Z6303G)

Screening of tomato callus and acquisition of stress resistant mutants

He Yuanqin1, Xu Dingfan1, Liu Yanjun1,Corresponding Author, Ji Heliang2, Zhao Lili1, Dong Hongyu1   

  1. 1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China;
    2. Tianjin Gengyun Seed Co. Ltd., Tianjin 300408, China
  • Received:2021-11-08 Online:2022-09-30 Published:2022-10-10

摘要: 以番茄叶柄为外植体,建立番茄愈伤组织再生体系,并以PEG-8000筛选番茄愈伤组织突变细胞,同时诱导愈伤组织细胞再生,从中筛选生长势强的具有抗逆性的再生植株。结果显示,在MS+1.0 mg/L BA+2.0 mg/L 2,4-D培养基上可诱导出质地较硬、结构松散的胚性愈伤组织;将愈伤组织转接到MS+1.0 mg/L BA培养基上,不定芽分化率达100%;将愈伤组织接种到含有PEG-8000的最佳分化培养基上可筛选获得生长健壮、抗逆性强的突变体,在PEG-8000浓度为5%时筛选效果最理想。本试验通过对愈伤组织突变细胞进行定向筛选获取抗逆性再生植株,可为植物抗性育种提供参考。

关键词: 番茄, 抗逆性, 突变体, PEG-8000, 叶柄

Abstract: Tomato petioles were used as explants to establish tomato callus regeneration system, then the mutant cells of tomato callus were screened by PEG-8000, and the regeneration of callus cells was induced at the same time, so as to screen regenerated plants with strong growth potential and stress resistance. The results showed that the callus with hard texture and loose structure could be induced on the medium of MS + 1.0 mg/L BA + 2.0 mg/L 2,4-D ; and the highest regeneration rate was 100% when the callus was transferred to the medium of MS + 1.0 mg/L BA; the regenerated plantlets with fast growth, robust and stress-resistant characteristics could be obtained by inoculating the callus on the regeneration medium containing PEG-8000, and the ideal screening concentration of PEG-8000 was 5%. In this study, stress-resistant regenerated plants were obtained by directional screening of callus mutant cells, which could provide reference for plant stress-resistant breeding.

Key words: tomato, stress-resistant, mutant, PEG-8000, petiole

中图分类号: