浙江农业科学 ›› 2026, Vol. 67 ›› Issue (3): 591-594.DOI: 10.16178/j.issn.0528-9017.20240513

• 经济作物 • 上一篇    下一篇

甬马1号马铃薯外植体的再生体系优化

王芳1(), 张宇旭2, 朱诗君1, 陈铁锋3, 金树权1, 严成其1()   

  1. 1.宁波市农业科学研究院,浙江 宁波 315040
    2.浙江万里学院,浙江 宁波 315100
    3.慈溪市横河镇龙南股份经济合作社,浙江 宁波 315300
  • 收稿日期:2024-06-24 出版日期:2026-03-11 发布日期:2026-03-30
  • 通讯作者: 严成其
  • 作者简介:严成其,E-mail:yanchengqi@163.com
    王芳,从事薯类育种与推广研究。E-mail:wangfang811028@163.com
  • 基金资助:
    宁波市公益性研究计划项目(2024S014);浙江省农业新品种选育重大科技专项子课题(2021C02064-1-5);慈溪市科技局重大公益项目(CZ2022003)

Optimization of regeneration system for explant from potato Yongma 1

WANG Fang1(), ZHANG Yuxu2, ZHU Shijun1, CHEN Tiefeng3, JIN Shuquan1, YAN Chengqi1()   

  1. 1.Ningbo Academy of Agricultural Sciences,Ningbo 315040,Zhejiang
    2.Zhejiang Wanli University,Ningbo 315100,Zhejiang
    3.Longnan Stock Economic Cooperative in Henghe Town,Cixi City,Ningbo 315300,Zhejiang
  • Received:2024-06-24 Online:2026-03-11 Published:2026-03-30
  • Contact: YAN Chengqi

摘要:

马铃薯外植体再生体系的建立对马铃薯育种、脱毒快繁,以及细胞、组织的代谢生理及生化方面的基础理论研究具有十分重要的作用。本试验以甬马1号为材料,对不同长度的马铃薯芽采用不同的消毒处理方式,以筛选出最适合建立马铃薯外植体再生体系的芽长和消毒时间,进而为形成以组培快繁、温室扦插、网室栽培、原种繁育和合格生产为链条的完整的良种繁育体系打下基础。结果表明,甬马1号马铃薯外植体存活和生长的最适顶芽长度为1.0~1.5 cm,太大或太小的顶芽都不利于外植体再生体系的建立;同时,顶芽在流水冲洗30~35 min、75%乙醇消毒30~50 s、0.1%HgCl2消毒180~300 s 的条件下,马铃薯外植体的成活率最高,污染率和褐化率最低。此外,适合马铃薯外植体生长的最佳光强为3 000~5 000 lx,光照时长为12~18 h。

关键词: 马铃薯, 外植体, 组织培养, 消毒

Abstract:

The establishment of regeneration system for potato explant played a crucial role in the fundamental theoretical research of potato breeding,detoxification and rapid propagation,as well as the metabolic,physiological,and biochemical aspects of cells and tissues. This experiment selected the variety Yongma 1 as the material,and applied different disinfection methods to treat buds of different lengths,so as to select the most suitable bud length and disinfection time for establishing regeneration system for potato explants,laying the foundation for forming a complete high-quality breeding system with tissue culture rapid propagation,greenhouse cutting,net room cultivation,original seed breeding,and qualified production as the chain. The results showed that the optimal apical bud length for the survival and growth of the potato explants of Yongma 1 was 1.0 to 1.5 cm. Apical buds that were too large or too small were not conducive to the establishment of regeneration system for potato explant. At the same time,the explants with apical buds washed in running water for 30-35 minutes,disinfected with 75% ethanol for 30 to 50 seconds, and disinfected with 0.1% HgCl2 for 180 to 300 seconds had the highest survival rate and the lowest contamination rate and browning rate. In addition,the optimal light intensity for the growth of potato explants was 3 000 to 5 000 lx, and the light duration was 12 to 18 hours.

Key words: potato, explant, tissue culture, disinfection

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