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云南农业大学学报(自然科学) 2017, Vol. 32 Issue (4) :703-711    DOI: 10.16211/j.issn.1004-390X(n).2017.04.020
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不同互作方式对小花南芥和蚕豆Pb累积的效应分析
尹晓青, 李博, 王吉秀, 李元, 祖艳群
云南农业大学 资源与环境学院, 云南 昆明 650201
Effects of Different Interactions between Arabis alpina var. Parviflora Franch and Vicia Faba L. on Pb Accumulation in Plants
YIN Xiaoqing, LI Bo, WANG Jixiu, LI Yuan, ZU Yanqun
College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China

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摘要 

[目的]本研究探讨不同程度的根系互作方式对小花南芥和蚕豆生长、吸收和累积Pb的影响以及小花南芥和蚕豆根际不同互作方式效应分析。[方法]采用原子吸收分光光度法测量土壤和植株中的Pb含量,分析小花南芥和蚕豆根系采用PVC板隔开、尼龙筛布隔开、无隔板3种处理方式对植株吸收累积Pb的影响。[结果](1)不同根系互作下,根系无隔板处理时,小花南芥和蚕豆生物量显著增加。(2)小花南芥Pb的累积量以无隔板较高,PVC板隔开较低;蚕豆Pb累积量以PVC板隔开较高,尼龙筛布隔开较低。(3)根际互作的总效应中,溶液效应占到70%左右,根系效应为30%左右。[结论]无隔板处理条件下,溶液效应(根系分泌物、根部共生菌等)是提高小花南芥Pb累积量,降低蚕豆Pb的累积量的主要原因。

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尹晓青
李博
王吉秀
李元
祖艳群
关键词小花南芥   蚕豆   根际互作   Pb累积     
Abstract

[Purpose] The objective was to explore the correlated influence factors for growth, absorption accumulation of Pb by using different ways of roots interaction of Arabis alpina and Vicia faba.[Method] The content of lead in soil and plant was determined by atomic absorption spectrometry. A. alpina and V. faba roots interaction, including PVC board separated, a nylon mesh cloth separated, non separated. The effects of content of lead of A. alpina and V. faba were analyzed.[Results] (1) With no separated, the total microbial number of Arabis alpina and V. faba was found on variety no separated increased. (2) A high Pb accumulation of A. alpina was found on variety no separated and a low on variety PVC board separated;a high Pb accumulation of V. faba was found on variety PVC board separated and a low on variety a nylon mesh cloth separated. (3) Solution effects accounted for about 70% and root effects about 30%.[Conclusion] The role of the solution (root exudates and root symbiotic bacteria) should be the main reason to improve Pb accumulation of A. alpina and to reduce Pb accumulation of V. faba.

KeywordsArabis alpina var. Parviflora Franch   Vicia faba L.   rhizosphere interactions   Pb accumulation     
Received 2016-05-30;
Fund:

国家自然科学-云南省联合基金项目(U1202236);国家自然科学基金项目(41261096,31560163)。

Corresponding Authors: 祖艳群(1966-),女,湖南沅江人,教授,博士生导师,主要从事土壤重金属污染与修复生态学研究。E-mail:649332092@qq.com     Email: 649332092@qq.com
About author: 尹晓青(1992-),女,云南保山人,在读研究生,主要从事土壤重金属污染与修复生态学研究。E-mail:1156852234@qq.com
引用本文:   
尹晓青, 李博, 王吉秀, 李元, 祖艳群.不同互作方式对小花南芥和蚕豆Pb累积的效应分析[J]  云南农业大学学报(自然科学), 2017,V32(4): 703-711
YIN Xiaoqing, LI Bo, WANG Jixiu, LI Yuan, ZU Yanqun.Effects of Different Interactions between Arabis alpina var. Parviflora Franch and Vicia Faba L. on Pb Accumulation in Plants[J]  Journal of Yunnan Agricultural University, 2017,V32(4): 703-711
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