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23 Result(s)

within **ao-** Sun Remove this filter Science, Humanities and Social Sciences, multidisciplinary Remove this filter Earth Sciences, general Remove this filter Life Sciences, general Remove this filter

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  1. No Access

    Article

    Menadione-induced apoptosis and its mechanism in plants

    Menadione can induce apoptosis in tobacco protoplasts. Typical characteristics are detected including the condensation of chromatin, the formation of apoptotic bodies and the degradation of genomic DNA into “D...

    Yingli Sun, Jun Zhou, Yaoren Dai, Zhonghe Zhai in Chinese Science Bulletin (2000)

  2. No Access

    Article

    Os isotopic composition of the earth’s primitive upper mantle

    The osmium isotopic ratio of187Os/188Os ranging from 0.126 to 0.127 for the primitive upper mantle (PUM) is obtained according to the correlation between187Os/188Os and Al2O3 of mantle-derived xenoliths and oroge...

    Weidong Sun, **achen Zhi, Zicheng Peng, Zhaorong Wang… in Chinese Science Bulletin (1998)

  3. No Access

    Article

    Molecular mechanism of the inhibitory effect of methylation outside the recognition sequence of restriction endonuclease Pvu II on its cleavage activity

    In 1991, we found that methylation outside the Pvu II recognition sequence could partially inhibit its cleavage activity. To clarify the molecular mechanism, three plasmids with different methylation states we...

    Defeng Chen, Mei Sun, Yingmiao Liu, Guoli Shi, Yawen Chen in Chinese Science Bulletin (1998)

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