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2011 | 33 | 3 |

Tytuł artykułu

Response of Camptotheca acuminata calli stimulated by mechanical vibration

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
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.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

33

Numer

3

Opis fizyczny

p.711-716,fig.,ref.

Twórcy

autor
  • School of Pharmaceutical Sciences, Sun Yat-sen University, 132 Waihuan East Road, Higher Education Mega Center, Guangzhou 510006, China
  • Guangdong Food and Drug Vocational College, Guangzhou 510520, China
autor
  • Guangdong Food and Drug Vocational College, Guangzhou 510520, China
autor
  • Guangdong Research Institute of Traditional Chinese Medicine, Guangzhou 510520, China
autor
  • Guangdong Research Institute of Traditional Chinese Medicine, Guangzhou 510520, China
autor
  • Guangdong Research Institute of Traditional Chinese Medicine, Guangzhou 510520, China
autor
  • School of Pharmaceutical Sciences, Sun Yat-sen University, 132 Waihuan East Road, Higher Education Mega Center, Guangzhou 510006, China

Bibliografia

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  • Giannopolitia CN, Ries SK (1977) Superoxide dismutases. I. Occurrence in higher plants. Plant Physiol 59:309–314
  • Hengel AJV, Harkes MP, Wichers HJ, Hesselink PGM, Buitelaar RM (1992) Characterization of callus formation and camptothecin production by cell lines of Camptotheca acuminata. Plant Cell Tissue Organ Cult 28:11–18
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  • Liu YY, Wang BC, Zhao HC, Duan CR (2000) Studies of mechanical vibration stimulation influencing the growth on Chrysanthemum callus. J Med Biomech 15(4):199–203
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  • Staker BL, Hjerrild K, Feese MD, Behnke CA, Burgin JAB, Stewart L (2002) The mechanism of topoisomerase I poisoning by a camptothecin analog. Proc Natl Acad Sci USA 99:15387–15392. doi:10.1073/pnas.242259599
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  • Yang XC, Wang BC, Liu YY, Duan CR, Dai CY (2002) Biological effects of Actinidia chinensis callus on mechanical vibration. Colloids Surf B Biointerfaces 25:197–203
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Bibliografia

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