“花魔芋”顶芽组织培养快繁技术研究
2021-08-30李晓亮杨进成马文彬张钟邓成忠张玉荣左丽娟胡新洲廖凯段永华
李晓亮 杨进成 马文彬 张钟 邓成忠 张玉荣 左丽娟 胡新洲 廖凯 段永华



摘要 [目的]通过器官发生直接途径再生植株的方式,研究建立完善的“花魔芋”组织培养快繁技术体系。[方法]以“花魔芋”球茎的顶芽为外植体,研究不同的灭菌方法、培养基、继代周期等因素对“花魔芋”组织培养的影响。[结果]适合“花魔芋”顶芽灭菌的方法是0.20% HgCl 2灭菌10~15 min;适合初代培养的培养基是MS+6-BA 1.0~3.0 mg/L+NAA 0.2~0.5 mg/L;适合增殖培养的培养基是MS+6-BA 1.0~2.0 mg/L+NAA 0.1~0.2 mg/L;适合生根培养的培养基是1/2MS + NAA(或IBA) 0.1~0.2 mg/L+活性炭0.1%。[结论]得出了一套完善的“花魔芋”组织培养快繁技术体系,能育出有较高素质的“花魔芋”种苗,可以推广应用于“花魔芋”的工厂化育苗,同时也为其他品种的魔芋组织培养快繁技术研究提供参考。
关键词 花魔芋;球茎;顶芽;组织培养;快速繁殖;培养基
中图分类号 S 632.3 文獻标识码 A
文章编号 0517-6611(2021)16-0123-03
doi:10.3969/j.issn.0517-6611.2021.16.033 开放科学(资源服务)标识码(OSID):
Study on Rapid Propagation Technology in Tissue Culture of Apical Buds from Amorphophallus konjac
LI Xiao-liang,YANG Jin-cheng,MA Wen-bin et al (Yuxi Academy of Agricultural Sciences,Yuxi,Yunnan 653100)
Abstract [Objective] To study and further establish a perfect technology system of rapid propagation in tissue culture of Amorphophallus konjac, by means of direct organogenesis and plant regeneration.[Method] Apical buds sprouting from the corms of Amorphophallus konjac were used as explants,and effects of different sterilization method,medium and subculture cycle on tissue culture of Amorphophallus konjac were studied.[Result]The results showed that the suitable explants sterilization method was treatment 10-15 min by 0.20% HgCl 2,suitable primary culture medium was MS+6-BA1.0-3.0mg/L+NAA0.2-0.5mg/L,suitable proliferation medium was MS+6-BA 1.0-2.0 mg/L+NAA 0.1-0.2 mg/L,and suitable rooting medium was 1/2MS+NAA(or IBA) 0.1-0.2mg/L+activated carbon 0.1%.[Conclusion]The technology system was acquired in this study,which can produce high quality seedling,promote and apply in the factory seedling production of Amorphophallus konjac, and also provide important reference for study on tissue culture technology of other varieties in Amorphophallus konjac.
Key words Amorphophallus konjac; Corm;Apical bud;Tissue culture;Rapid propagation;Medium
魔芋,又名磨芋或蒟蒻,是天南星科(Araceae)魔芋属 (Amorphophallus Blume)的总称,栽培学上归属于薯芋类作物。魔芋属于多年生宿根草本植物,在我国有2 000余年的栽培历史。魔芋是一种具有较高价值的经济作物,含有丰富的具有独特理化特性的葡甘聚糖,对高血脂、高胆固醇、糖尿病、肥胖病、便秘症等具有防治作用,在食品及食品添加剂上有广泛的应用价值,是化妆品、纺织业印花糊料、建筑业涂料、食用膜、地膜中的绿色无污染原料,在钻探中作护壁剂、压裂剂等效果更佳,具有广阔的开发前景[1]。正因如此,魔芋在各地被广泛种植。
魔芋的常规繁殖主要是采用块茎进行无性繁殖,但存在着用种量大、繁殖系数低、生产成本高、生产周期长、种性易退化等问题,制约着魔芋产业的发展[1-2]。……
