A protocol has been developed for in vitro plant regeneration from a nodal explant of Dracaena sanderiana Sander ex Mast. Nodal explant showed high callus induction potentiality on MS medium supplemented with 6.78 μM 2,4-dichlorophenoxyacetic acid (2,4-D) followed by 46.5 μM chlorophenoxy acetic acid (CPA). The highest frequency of shoot regeneration (85%) and number of shoots per explant (5.6) were obtained on medium supplemented with 7.84 μM N(6)-benzylaminopurine (BA). Rooting was high on MS solid compared to liquid medium when added with 7.38 μM indole-3-butyric acid (IBA). Fifty percent of the roots were also directly rooted as microcuttings on soil rite, sand and peat mixture (1:1:1). In vitro and ex vitro raised plantlets were used for acclimatization. More than 90% of the plantlets was successfully acclimatized and established in plastic pots. Ex vitro transferred plantlets were normal without any phenotypic aberrations.

译文

已经开发出一种协议,用于从Dracaena sanderiana Sander ex Mast的节点外植体中进行体外植物再生。节点外植体在补充有6.78 μ m2,4-二氯苯氧基乙酸 (2,4-d) 和46.5 μ m氯苯氧基乙酸 (CPA) 的MS培养基上显示出较高的愈伤组织诱导潜力。在补充有7.84 μ mn (6)-苄基氨基嘌呤 (BA) 的培养基上获得最高的芽再生频率 (85%) 和每个外植体的芽数 (5.6)。当添加7.38 μ m吲哚-3-丁酸 (IBA) 时,与液体培养基相比,MS固体上的生根高。50% 的根也直接作为微屑生根在土壤,沙子和泥炭混合物 (1:1:1) 上。体外和体外培养的小植株用于驯化。超过90% 的小植株已成功适应并建立在塑料盆中。体外转移的小植株正常,没有任何表型畸变。

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