Effect of plant growth regulators on the biosynthesis of vinblastine,vindoline and catharanthine in <Emphasis Type="Italic">Catharanthus roseus</Emphasis> |
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| Authors: | Qifang Pan Yu Chen Quan Wang Fang Yuan Shihai Xing Yuesheng Tian Jingya Zhao Xiaofen Sun Kexuan Tang |
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| Institution: | (1) Plant Biotechnology Research Center, Fudan-SJTU-Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Dongchuan Road 800, Minhang District, Shanghai, 200240, China; |
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| Abstract: | Catharanthuse roseus is a well-known medicinal plant for its two valuable anticancer compounds: vinblastine and vincristine, which belongs to
terpenoid indole alkaloids. Great efforts have been made to study the principles of its secondary metabolic pathways to regulate
the alkaloids biosynthesis. In this article, different plant growth regulators were shortly applied to Catharanthus roseus plants during the blooming period to study their effects on the biosynthesis of vinblastine, vindoline and catharanthine.
Salicylic acid and ethylene (ethephon) treatments resulted in a significant increase of vinblastine, vindoline and catharanthine
while abscisic acid and gibberellic acid had a strongly negative influence on the accumulation of the three important alkaloids.
Methyl jasmonate showed no great effect on the production of these valuable alkaloids. Chlormequat chloride highly enhanced
the accumulation of vinblastine but greatly decreased the contents of vindoline and catharanthine. |
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