向日葵(Helianthus annuus L.)对133Cs、88Sr的吸收和分布

doi:10.7525/j.issn.1673-5102.2009.05.015

植物研究 ›› 2009, Vol. 29 ›› Issue (5): 592-596.doi: 10.7525/j.issn.1673-5102.2009.05.015

向日葵(Helianthus annuus L.)对¹³³Cs、⁸⁸Sr的吸收和分布

闻方平^1,2;王丹^1,2*;徐长合¹;徐凤亭¹;张志伟¹;张晓雪¹

(1.西南科技大学生命科学与工程学院，绵阳621010) (2.核废物与环境安全国防重点学科实验室，绵阳621010)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-09-20 发布日期:2009-09-20
通讯作者: 王丹
基金资助:

Uptake and Distribution of ¹³³Cs and ⁸⁸Sr in sunflower(Helianthus annuus L.)

WEN Fang-Ping;WANG Dan;*;XU Chang-He;XU Feng-Ting;ZHANG Zhi-Wei;ZHANG Xiao-Xue

(1.College of Life Science and Engineering,Southwest University of Science and Technology,Mianyang621010) (2.Defense Key Discipline Laboratory of the Nuclear Waste and Environmental Security,Mianyang621010)

Received:1900-01-01 Revised:1900-01-01 Online:2009-09-20 Published:2009-09-20
Contact: WANG Dan
Supported by:

摘要/Abstract

摘要： 通过盆栽试验研究了向日葵(Helianthus annuus L.)对土壤中不同处理浓度¹³³Cs和⁸⁸Sr的吸收，以及¹³³Cs和⁸⁸Sr在向日葵不同部位的分布。结果表明：随着处理浓度的增加，植物中¹³³Cs或⁸⁸Sr的含量增加。同一处理浓度下，⁸⁸Sr含量约比¹³³Cs含量高一个数量级。¹³³Cs和⁸⁸Sr在植物不同部位分布不同。根部中¹³³Cs含量高于植物的其他部位（茎、叶、花）。不同于¹³³Cs在植物中的分布，⁸⁸Sr除在根中的分布外，主要转运到了叶片。¹³³Cs和⁸⁸Sr在向日葵体内的分布与目前对放射性¹³⁷Cs和⁹⁰Sr的研究结果相似，所以¹³³Cs和⁸⁸Sr可分别预测¹³⁷Cs和⁹⁰Sr的运转。向日葵是治理大面积低放核素污染土壤的较佳植物种类。

关键词: ¹³³Cs, ⁸⁸Sr, Helianthus annuus L., uptake, distribution, phytoremediation

Abstract: The uptake and distribution of stable ¹³³Cs and ⁸⁸Sr in sunflower (Helianthus annuus L.) were studied by pot experiments. The results showed that the content of ¹³³Cs or ⁸⁸Sr in leaf increased with the increasing soil concentration of each element. The ⁸⁸Sr content in sunflower leaf was generally one order of magnitude higher than that of ¹³³Cs in each same treatment level. The ¹³³Cs and ⁸⁸Sr were unevenly distributed in the different organs. The ¹³³Cs concentration was higher in roots than in other plant organs (stems, leaves, flowers). Contrary to the distribution of ¹³³Cs in plant, ⁸⁸Sr, except for roots, were mainly translocated to leaves. The distribution of cesium and strontium are agreed with the results of present research on radioactive ¹³⁷Cs and ⁹⁰Sr, ¹³³Cs and ⁸⁸Sr could be useful to understand and predict the long-term movements of ¹³⁷Cs and ⁹⁰Sr, respectively. Sunflower is the acceptable plants for phytoremediation to the low-level radioactive soil.

Key words: ¹³³Cs, ⁸⁸Sr, Helianthus annuus L., uptake, distribution, phytoremediation

中图分类号:

X591

闻方平;王丹;*;徐长合;徐凤亭;张志伟;张晓雪. 向日葵(Helianthus annuus L.)对¹³³Cs、⁸⁸Sr的吸收和分布[J]. 植物研究, 2009, 29(5): 592-596.

WEN Fang-Ping;WANG Dan;*;XU Chang-He;XU Feng-Ting;ZHANG Zhi-Wei;ZHANG Xiao-Xue. Uptake and Distribution of ¹³³Cs and ⁸⁸Sr in sunflower(Helianthus annuus L.)[J]. Bulletin of Botanical Research, 2009, 29(5): 592-596.

向日葵(Helianthus annuus L.)对¹³³Cs、⁸⁸Sr的吸收和分布

Uptake and Distribution of ¹³³Cs and ⁸⁸Sr in sunflower(Helianthus annuus L.)

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