链霉菌的抗砷特性及其对蜈蚣草富集砷的作用

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	链霉菌的抗砷特性及其对蜈蚣草富集砷的作用
	文一; 廖晓勇; 阎秀兰
	2013
Source Publication	生态毒理学报
ISSN	1673-5897
Volume	8 Issue:2 Pages:186
Abstract	本文研究了链霉菌Streptomyces sp.的耐砷特性及其对蜈蚣草富集砷的影响。结果表明,Streptomyces sp.可在100mmo·lL~(-1)的砷酸盐溶液中生长,具有较强的抗砷毒害能力,且在48h内对As(Ⅴ)的还原率达96.5%。施用Streptomyces sp.能促进植物对砷的吸收,蜈蚣草地上部砷浓度为930mg·kg~(-1),地上部砷累积量达到对照组的2.09倍。加入Streptomyces sp.后,能促进根际土壤中As(Ⅴ)还原成As(Ⅲ),大幅度降低根际土壤残渣态砷含量,从48.15mg·kg~(-1)下降至28.75mg·kg~(-1)。Streptomyces sp.通过影响蜈蚣草根际环境,提高根际土壤pH,增加DOC含量,促使砷形态变化,从而增加砷生物可利用性。该菌可作为强化蜈蚣草修复砷污染土壤的材料。
Language	英语
Document Type	期刊论文
Identifier	http://ir.igsnrr.ac.cn/handle/311030/82995
Collection	中国科学院地理科学与资源研究所
Affiliation	中国科学院地理科学与资源研究所
First Author Affilication	中国科学院地理科学与资源研究所
Recommended Citation GB/T 7714	文一,廖晓勇,阎秀兰. 链霉菌的抗砷特性及其对蜈蚣草富集砷的作用[J]. 生态毒理学报,2013,8(2):186.
APA	文一,廖晓勇,&阎秀兰.(2013).链霉菌的抗砷特性及其对蜈蚣草富集砷的作用.生态毒理学报,8(2),186.
MLA	文一,et al."链霉菌的抗砷特性及其对蜈蚣草富集砷的作用".生态毒理学报 8.2(2013):186.

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