一种以紫皮石斛茎段为起始材料的组培快繁的方法

The rapid propagation technology of Dendrobium officinale stem segments through tissue culture has solved the problems of low propagation coefficient and long cycle of traditional propagation methods, and achieved efficient and stable propagation of excellent traits, shortened the industrialization cycle, and met the market's rapid demand for high-quality seedlings.

CN121867100BActive Publication Date: 2026-07-17SOUTHWEST FORESTRY UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEST FORESTRY UNIVERSITY
Filing Date
2026-03-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The seeds of Dendrobium nobile are tiny and difficult to germinate, making reproduction difficult under natural conditions. Traditional asexual reproduction methods have a low reproduction coefficient and a long cycle, which cannot meet the industry's rapid demand for high-quality seedlings.

Method used

Using stem segments of Dendrobium nobile as explants, rapid propagation was achieved through tissue culture techniques, including axillary bud explant preparation, explant disinfection, primary culture, proliferation culture, and seedling rooting culture. Hydrogen peroxide silver ion disinfectant solution was used to promote axillary bud germination, and potassium sorbate was used to rescue the culture medium in case of contamination, thus achieving efficient and stable rapid propagation.

Benefits of technology

The large-scale supply of superior single-plant seedlings was achieved in about two years, shortening the industrialization cycle of traditional methods by 75%, preserving the superior traits of the maternal parent, improving the survival rate and utilization rate of explants, and reducing costs.

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Abstract

本发明公开了一种以紫皮石斛茎段为起始材料的组培快繁方法,属于植物组织培养技术领域。所述方法包括:于冬季采集枝条阴干后,定期喷施特定浓度的过氧化氢银离子消毒剂以诱导腋芽萌发;以萌发腋芽为外植体,经消毒后接种于预培养基;若发生污染,采用原消毒剂浸泡并转入含山梨酸钾的挽救培养基进行挽救;将无菌材料接种至启动培养基,一步诱导形成带根丛生芽;继而通过增殖培养基快速扩繁,最后经壮苗生根培养获得健壮组培苗。本发明通过独特的外植体预处理和诱导、高效的污染挽救机制以及优化的培养基体系,实现了紫皮石斛优良性状的稳定、高效快繁,大幅缩短了繁殖周期,为产业化提供了可靠的技术支撑。
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