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Bulletin of Botanical Research ›› 2024, Vol. 44 ›› Issue (6): 945-953.doi: 10.7525/j.issn.1673-5102.2024.06.015

• Plant reproductive biology • Previous Articles     Next Articles

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

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

CLC Number: 

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