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Effect of coconut water and cytokinins on rapid micropropagation of Ranunculus wallichianus Wight & Arnn—a rare and endemic medicinal plant of the Western Ghats, India
In Vitro Cellular & Developmental Biology - Plant ( IF 2.2 ) Pub Date : 2021-01-08 , DOI: 10.1007/s11627-020-10137-1
P. Srinivasan , H. David Raja , R. Tamilvanan

Ranunculus wallichianus is a rare medicinal plant endemic to Western Ghats, India. Nodal explants were inoculated on MS medium with 1.0 to 5.0 mg L−1 of 6-benzyladenine (BA), kinetin (KIN), or thidiazuron (TDZ) resulting in a low percentage of shoot regeneration. Coconut water (CW) was added to MS medium containing the above mentioned cytokinins to promote in vitro plantlet growth. Multiple shoots were regenerated on half-strength Murashige and Skoog (MS) medium containing 1.0 to 5.0 mg L−1 BA, KIN, or TDZ in combination with 5%, 10%, and 20% CW. The highest percentage of shoot multiplication was observed from cultures incubated on half-strength MS medium supplemented with 3.0 mg L−1 TDZ in combination with 10% CW. The cut ends of well-elongated shoots were transferred to medium containing 0.5 to 3.0 mg L−1 indole-3-acetic acid (IAA) or indole-3-butyric acid (IBA) to induce in vitro root induction. Half-strength MS medium with 2.5 mg L−1 IBA and 250 mg L−1 activated charcoal shows high frequency of root formation. The well-rooted plantlets were transferred to pots for hardening with survival rate of 93% after 30 d. The present work indicates the addition of CW with the cytokinins in half-strength MS medium is suitable for rapid micropropagation of R. wallichianus.



中文翻译:

椰子水和细胞分裂素对毛an毛的快速微繁殖的影响-印度西高止山脉的一种稀有特有药用植物

毛an属Wallichianus是印度西高止山脉特有的稀有药用植物。将结节外植体接种在含有1.0至5.0 mg L -1的6-苄基腺嘌呤(BA),激动素(KIN)或噻二唑酮(TDZ)的MS培养基上,导致芽再生的百分比较低。椰子水(CW)中的溶液加入到含有上述细胞分裂素促进MS培养基体外植株的生长。在含有1.0至5.0 mg L -1 BA,KIN或TDZ以及5%,10%和20%CW的半强度Murashige和Skoog(MS)培养基上再生多个芽。从在补充了3.0 mg L -1的半强度MS培养基上培养的培养物中观察到最高的芽繁殖百分比TDZ与10%的CW结合使用。将充分伸长的芽的切端转移至含有0.5至3.0mg L -1吲哚-3-乙酸(IAA)或吲哚-3-丁酸(IBA)的培养基中以诱导体外根诱导。具有2.5 mg L -1 IBA和250 mg L -1活性炭的半强度MS培养基显示出很高的根形成频率。将根深蒂固的小苗转移到盆中进行硬化,30天后成活率为93%。目前的工作表明在半强度MS培养基中添加细胞分裂素与CW的方法适合于Wallichianus的快速微繁殖

更新日期:2021-01-10
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