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Response of Camptotheca acuminata calli stimulated by mechanical vibration

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机构： [a]School of Pharmaceutical Sciences, Sun Yat-sen University, Higher Education Mega Center, 132 Waihuan East Road, Guangzhou 510006, China [b]Guangdong Food and Drug Vocational College, Guangzhou 510520, China [c]Guangdong Research Institute of Traditional Chinese Medicine, Guangzhou 510520, China

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关键词： Biological effect Callus Camptotheca acuminata Mechanical vibration

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Plants in their natural environment are usually affected by mechanical stress because of their sessile growth habit. This work was aimed at determining the effects of mechanical vibration on the growth rate, physiological indexes, and secondary metabolite biosynthesis of Camptotheca acuminata calli. In this study, mechanical vibrations of 1-4 Hz in frequency were applied to stimulate the C. acuminata calli; we found that a mechanical vibration of moderate frequency (2 Hz) can clearly promote the growth rate and increase the soluble protein content and superoxide dismutase (SOD) activity. Under a mechanical vibration of a 2 Hz frequency, camptothecin (CPT), the main secondary metabolite produced by C. acuminata, was increased by about fourfold compared to the control group, In contrast, the increased accumulation disappears at higher frequencies. The optimal vibration time for obtaining the highest levels of biomass and CPT was 60 min. This study showed that there are neutral frequencies and optimal periods of mechanical vibration on C. acuminata calli. © 2010 Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków.

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出版当年[2010]版：

大类 | 4 区生物

小类 | 4 区植物科学

最新[2025]版：

大类 | 4 区生物学

小类 | 3 区植物科学

第一作者：

第一作者机构： [a]School of Pharmaceutical Sciences, Sun Yat-sen University, Higher Education Mega Center, 132 Waihuan East Road, Guangzhou 510006, China [b]Guangdong Food and Drug Vocational College, Guangzhou 510520, China

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