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DISTRIBUTION OF PAHs IN VARIOUS ORGANS OF RICE
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY
- Issue:
- 6
- DOI:
- 10.3321/j.issn:1006-687X.2005.06.001
- Key Word:
- 多环芳烃;水稻;生物有效性;器官
Abstract： 采集了天津东丽区幼穗期、蜡熟期和枯熟期的水稻植株样品,研究了多环芳烃在其不同器官中的分布.研究结果表明,水稻根中PAH15含量在幼穗期之后不断增加,至枯熟期达到土壤浓度的3倍.茎叶中PAH15含量则从幼穗期到枯熟期呈现逐渐下降的一般趋势,且穗梗含量高于稻茎,第一叶含量高于下叶.水稻籽实成熟期间生物量迅速增加,其增速高于PAH15累积,这样的稀释作用造成表观浓度的下降.水稻地上部分各器官PAH15含量与脂含量之间具有显著的正相关关系.图5参12
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