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植物研究 ›› 2024, Vol. 44 ›› Issue (6): 945-953.doi: 10.7525/j.issn.1673-5102.2024.06.015

• 植物生殖生物学 • 上一篇    下一篇

Fe元素对半夏试管珠芽形成及试管苗生长的影响

樊慧1,2,3, 郭苏杭1,2,3, 王进秀1,2,3, 张延红1,2,3(), 何春雨1,2,3, 郭清毅1,2,3   

  1. 1.甘肃中医药大学药学院,兰州 730000
    2.天然药用种质资源挖掘与新品种选育协同创新中心,兰州 730000
    3.甘肃中医药大学杏林百草园,兰州 730000
  • 收稿日期:2024-07-24 出版日期:2024-11-20 发布日期:2024-11-22
  • 通讯作者: 张延红 E-mail:zhyh456789@163.com
  • 作者简介:樊慧(1999—),女,硕士研究生,主要从事中药资源学研究。
  • 基金资助:
    甘肃省高等学校产业支撑计划项目(1515C-09);甘肃中医药大学成果转化培育项目(2023CGZH-18);甘肃省民生科技专项(科技特派员专题)(15CX9NA070);中央引导地方科技发展专项资金项目(30440323);现代农业产业技术体系建设专项(CARS-21);第五批省级科技计划(联合科研基金)项目(24JRRA877);第三批省级科技计划(重点研发计划)项目(24YFNA007)

Effect of Fe Element on Bulbil Formation and Tube Seedling Growth of Pinellia ternata

Hui FAN1,2,3, Suhang GUO1,2,3, Jinxiu WANG1,2,3, Yanhong ZHANG1,2,3(), Chunyu HE1,2,3, Qingyi GUO1,2,3   

  1. 1.Pharmacy College of Gansu University of Chinese Medicine,Lanzhou 730000
    2.Collaborative Innovation Center of Natural Medicine Germplasm Resources Discoverying and New Cultivars Breeding,Lanzhou 730000
    3.Xinglin Baicao Garden of Gansu University of Chinese Medicine,Lanzhou 730000
  • Received:2024-07-24 Online:2024-11-20 Published:2024-11-22
  • Contact: Yanhong ZHANG E-mail:zhyh456789@163.com

摘要:

为选出培养半夏试管珠芽的适宜Fe2+浓度,该研究通过梯度改变1/2MS基本培养基中Fe2+浓度,依据试管珠芽的形成时间、诱导率,试管苗地上、地下形态指标,试管珠芽中淀粉粒数量与分布,叶片叶绿素含量及试管珠芽有效成分含量等指标,得出试验结果为9.2×10-5 mol·L-1浓度下各项指标最佳。此外,还发现Fe缺素下无法形成完整试管珠芽,说明Fe是半夏试管珠芽形成过程中必不可少的微量元素,但同时浓度不宜过高,因高浓度Fe2+下,形成的试管珠芽极小且后续无法正常萌发成苗。

关键词: 半夏, 试管珠芽, 试管苗, 淀粉粒, Fe元素

Abstract:

To obtain an optimal Fe2+ concentration for culturing test tube bulbils of Pinellia ternata, the concentrations of Fe2+ in 1/2MS basic medium were changed in gradient; the formation time, induction rate and the above-ground and underground morphological indices of test-tube plantlets were investigated. The number and distribution of starch granules and the content of chlorophyll in leaves and the content of effective components in test tube bulbils were assayed. The results showed that the optimal Fe2+ concentration in 1/2MS basic medium for culturing test tube bulbils was 9.2×10-5 mol?L-1. In addition, the complete bulbils could not be formed under Fe deficiency. This indicated that Fe was an essential trace element in growth of P. ternata. However, the bulbils formed under high concentration of Fe2+ were very small and failed to germinate normally.

Key words: Pinellia ternata(Thunb.)Breit., test tube bulbils, tube seedlings, starch grain, Fe element

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