代雄伟, 瞿鹏, 刁霞, 唐云刚, 陶磅, 乔琴. 黄毛草莓愈伤组织诱导条件优化[J]. 云南大学学报(自然科学版), 2020, 42(2): 393-400. doi: 10.7540/j.ynu.20190454
引用本文: 代雄伟, 瞿鹏, 刁霞, 唐云刚, 陶磅, 乔琴. 黄毛草莓愈伤组织诱导条件优化[J]. 云南大学学报(自然科学版), 2020, 42(2): 393-400. doi: 10.7540/j.ynu.20190454
DAI Xiong-wei, QU Peng, DIAO Xia, TANG Yun-gang, TAO Pang, QIAO Qin. Callus induction of Fragaria nilgerrensis[J]. Journal of Yunnan University: Natural Sciences Edition, 2020, 42(2): 393-400. DOI: 10.7540/j.ynu.20190454
Citation: DAI Xiong-wei, QU Peng, DIAO Xia, TANG Yun-gang, TAO Pang, QIAO Qin. Callus induction of Fragaria nilgerrensis[J]. Journal of Yunnan University: Natural Sciences Edition, 2020, 42(2): 393-400. DOI: 10.7540/j.ynu.20190454

黄毛草莓愈伤组织诱导条件优化

Callus induction of Fragaria nilgerrensis

  • 摘要: 本研究分别以黄毛草莓叶片和茎尖生长点为外植体进行愈伤组织的诱导,并通过比较茎尖愈伤组织在不同培养基以及不同植物激素组合下的生长情况,为建立黄毛草莓高效快速的繁殖体系,筛选愈伤组织诱导的最适培养基奠定基础. 结果表明,与1/2MS培养基相比,MS培养基作为基础培养基(0.4 mg/L TDZ+0.2 mg/L 6-BA条件下)诱导的愈伤组织效果最佳;以MS为基本培养基,通过4因素3水平L9(34)正交实验研究不同浓度组合的4种植物激素对黄毛草莓愈伤组织诱导率的影响. 结果表明2,4-D对黄毛草莓叶片愈伤组织的诱导影响最大. 黄毛草莓叶片愈伤组织诱导的最优培养基为MS+0.4 mg/L TDZ+0.2 mg/L 6-BA+0.15 mg/L 2,4-D+0.2 mg/L NAA;NAA对黄毛草莓茎尖愈伤组织的诱导影响最大,黄毛草莓茎尖愈伤组织诱导的最优培养基为MS+0.2 mg/L TDZ+0.6 mg/L 6-BA+0.15 mg/L 2,4-D+0.6 mg/L NAA.

     

    Abstract: In order to establish an efficient and rapid system of regeneration, the optimal medium for callus induction from leaves and stem tips in Fragaria nilgerrensis were screened. Compared with 1/2 MS medium, MS medium with 0.4 mg/L TDZ+0.2 mg/L 6-BA was more appropriate for callus induction. Then leaves and stem tips were used as explants to compare the different callus induction rate under four kinds of plant hormones with different concentration combinations, which were designed as orthogonal experiment of L9(34). The results showed that 2, 4-D has the greatest effect on callus induction of leaves in F. nilgerrensis and the optimal medium was MS +0.4 mg/L TDZ +0.2 mg/L 6-BA +0.15 mg/L 2, 4-D +0.2 mg/L NAA. While NAA has the greatest effect on callus induced from stem tips and the optimal medium was MS +0.2 mg/L TDZ +0.6 mg/L 6-BA +0.15 mg/L 2, 4-D+0.6 mg/L NAA.

     

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