cje ›› 2010, Vol. 29 ›› Issue (12): 2353-2357.
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DONG Xing-cai, WANG Yan-hong, LI Guo-chen, LI Bo, WANG Shi-cheng
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Abstract: By using stable carbon isotope analysis technique, the distribution characteristics of stable carbon isotope composition (δ13C values) in the fruit, peduncle, and leaf of Schisandra chinensis from Liaoning Province were studied, and the correlations between fruit δ13C value and environmental factors were analyzed. It was found that the organ-specific difference in δ13C values was highly significant (P<0.01), with the sequence of fruit (-26.356‰±0.377‰) > peduncle (-26.620‰±0.342‰) > leaf (-28.327‰±0.370‰), which suggested that there was a distinct post-photosynthetic δ13C fractionation between photosynthetic and non-photosynthetic organs. During the growth period of S. chinensis, the δ13C value of fruit remained relatively stable, that of peduncle decreased, and that of leaf decreased significantly (P<0.001). The δ13C value of fruit had a slight increase with increasing latitude, and had an insignificant negative relationship with atmospheric CO2. The variation of fruit δ13C value with latitude could be used as an indicator to distinguish different origins of S. chinensis.
Key words: Liposcelis bostrychophila, Fumigation, DDVP, Lethal reaction
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URL: https://www.cje.net.cn/EN/abstract/abstract16945.shtml
https://www.cje.net.cn/EN/Y2010/V29/I12/2353