摘要
[Objective] The aim was to optimized and established the regeneration system of Moringa oleifera and provided foundation for its rapid propagation and further research. [Method] Tissue culture techniques and large scale micropropagation of M. oleifera were studied in this paper. By means of a series of experiments, we used the leaf of aseptic seedling from M. oleifera as explants to optimize and establish the regeneration system cultured in vitro by means of direct organogenesis. [Result] It was observed that using the fresh shelled M. oleifera seeds with 0.1% mercuric chloride for 6 minutes could reach the best disinfection effect. The seed germination rate was 85%. The leaf could produce cluster buds well using the medium with MS＋2.0 mg/L 6-BA＋0.05 mg/L NAA, while the best proliferation condition was under MS＋6-BA 1.0 mg/L＋KT 0.1 rag/L＋2, 4-D 2.0 mg/L＋NAA 0.05 mg/L. The best rooting induction culture medium was MS＋0.5 mg/L IBA, with the rooting rate as 100%. [Cenclusien] This protocol might find use in mass production of true- to-type plants and in production of transgenic plants through Agrobacterium/biolisticmediated transformation.
[目的]为辣木组培快繁及规模化育苗提供技术参考。[方法]以优选辣木无菌苗的真叶为材料,采用组织培养技术对其诱导、增殖、生根等问题进行研究。[结果]新鲜种子去壳后用0.1%升汞处理6 min的消毒效果最好,成功率达85%。辣木无菌苗真叶不定芽诱导及增殖最佳培养基分别为:MS+6-BA 1.0 mg/L+KT0.1 mg/L+2,4-D 2.0 mg/L+NAA 0.05 mg/L、MS+0.5 mg/L 6-BA+0.03 mg/L NAA,丛生芽明显。辣木组培苗最佳生根培养基为MS+0.5mg/L IBA,生根率可达100%,炼苗移栽后成活率达98%以上。[结论]辣木外植体的离体培养表明,不同的激素组合及其浓度对辣木外植体诱导效果差别大,各种激素经过优化配合,可以获得更高的诱导率,本研究为辣木的无菌快繁奠定应用基础,并为辣木基因工程育种等研究提供技术参考。
基金
National Natural Science Foundation of China(21165008)~~
