罗一然, 韩国伟, 张雪, 李旦, 刘树娜, 赵月明, 和润喜, 何承忠. 小木漆组织培养技术研究[J]. 西南林业大学学报, 2017, 27(3): 32-39. DOI: 10.11929/j.issn.2095-1914.2017.03.006
引用本文: 罗一然, 韩国伟, 张雪, 李旦, 刘树娜, 赵月明, 和润喜, 何承忠. 小木漆组织培养技术研究[J]. 西南林业大学学报, 2017, 27(3): 32-39. DOI: 10.11929/j.issn.2095-1914.2017.03.006
Yiran Luo, Guowei Han, Xue Zhang, Dan Li, Shuna Liu, Yueming Zhao, Runxi He, Chengzhong He. Tissue Culture of Toxicodendron vernicifluum[J]. Journal of Southwest Forestry University, 2017, 27(3): 32-39. DOI: 10.11929/j.issn.2095-1914.2017.03.006
Citation: Yiran Luo, Guowei Han, Xue Zhang, Dan Li, Shuna Liu, Yueming Zhao, Runxi He, Chengzhong He. Tissue Culture of Toxicodendron vernicifluum[J]. Journal of Southwest Forestry University, 2017, 27(3): 32-39. DOI: 10.11929/j.issn.2095-1914.2017.03.006

小木漆组织培养技术研究

Tissue Culture of Toxicodendron vernicifluum

  • 摘要: 以优良小木漆的茎段为外植体材料,建立小木漆组培技术体系,研究茎段消毒方法和茎段褐变防治、腋芽启动、幼苗增殖、幼苗生根培养基以及炼苗移栽的培养条件。结果表明:外植体的消毒以75%乙醇浸泡20 s,0.05%苯扎氯胺浸泡1 min,0.1%升汞浸泡20 min效果最好,外植体无污染;褐变防控的培养基以附加100 mg/L半胱氨酸的White培养基效果最好,褐变率仅为1.15%;腋芽启动培养基以White +半胱氨酸100 mg/L + 6-BA 2.0 mg/L + NAA 0.5 mg/L效果最好,萌发率达91.67%;幼苗增殖培养基以MS +ZT 0.5 mg/L + 6-BA 1.0 mg/L + TDZ 0.1 mg/L效果最好,增殖系数达4.89以上;生根培养基以1/2 MS + IAA 0.05 mg/L + IBA 0.2 mg/L效果最好,生根率达98.89%,平均每株幼苗生根数3.98条。组培苗炼苗后移栽在V (腐殖土) : V (河沙)= 1 : 1的基质中,成活率可达80%以上。

     

    Abstract: The stem segments from elite Toxicodendron vernicifluum tree were used as explants to establish the technical system of tissue culture. The disinfection and browning protection of stem segments, the medium of axillary bud startup, adventitious buds proliferation and seedlings rooting, and the conditions of plantlet transplanting were studied. It was found that the best disinfection method of explants was to be successively soaked in 75% ethanol for 20 s, 0.05% benzalkonium for 1 min, and 0.1% mercuric chloride for 20 min, and the explants was pollution-free. White medium supplemented with 100 mg/L cysteine could reach the lowest browning rate (1.15%). The optimum medium for axillary bud startup was White + 100 mg/L cysteine + 2.0 mg/L 6-BA + 0.5 mg/L NAA, with a germination rate of 91.67%. The optimum medium for seedling proliferation was MS + 0.5 mg/LZT + 1.0 mg/L 6-BA + 0.1 mg/L TDZ, with a multiplication coefficient over 4.89. Culture medium for seedlings rooting was 1/2 MS + 0.05 mg/L IAA + 0.2 mg/L IBA, with a rooting rate of 98.89% and an average root number per plantlet of 3.98. The survival rate of complete plantlets was more than 80% when transplanted into the medium made up 50% humus and 50% river sand.

     

/

返回文章
返回