接种根瘤菌对紫花苜蓿吸收转运PCB28及抗PCB28污染能力的影响
文献类型:期刊论文
作者 | 骆永明![]() |
刊名 | 河南农业科学
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出版日期 | 2014 |
卷号 | 43期号:3页码:65-69 |
关键词 | 多氯联苯 紫花苜蓿 根瘤菌 吸收转运 |
ISSN号 | 1004-3268 |
其他题名 | Effects of Rhizobia on Absorption and Transportation of PCB28 and PCB28 Tolerance of Alfalfa |
产权排序 | 丽江师范高等专科学校;中国科学院南京土壤研究所土壤环境与污染修复重点实验室;中国科学院烟台海岸带研究所; |
中文摘要 | 为探讨豆科植物-根瘤菌共生体系对多氯联苯(PCBs)污染土壤的生物修复机制,以紫花苜蓿作为供试植物,研究了PCB28(2,4,4′-三氯联苯)胁迫下接种根瘤菌(野生型、突变株)对紫花苜蓿吸收转运PCB28及抗PCB28污染能力的影响。结果表明,PCB28胁迫下,接种根瘤菌可提高紫花苜蓿各部位对PCB28的吸收富集能力,其中4mg/L PCB28处理条件下,与不接种根瘤菌处理(P)相比,接种野生型根瘤菌处理(P+R)和接种根瘤菌突变株处理(P+SMY)紫花苜蓿各部位PCB28含量显著增加,其中茎叶PCB28含量分别增加140.9%和91.6%;根PCB28含量分别增加64.0%和44.4%;根瘤... |
英文摘要 | In order to explore the phytoremediation mechanism of Leguminosae-rhizobia symbiosis in poIychloriated biphenyls(PCBs) contaminated soil,alfalfa(Medicago sativa L. ) was used as the experimental plant,and wild type and mutative rhizobial strains were used to investigate the effects of rhizobia on absorption, transportation of PCB28 and PCB28 tolerance of alfalfa under PCB28 stress. The results showed that the absorption and transportation ability to PCB2 was increased when alfalfa was inoculated with rhizobia. Compared with the alfalfa without rhizobia(P),when the alfalfa was inoculated with wild type rhizobial strains(P+R) and mutative rhizobial strains(P+SMY) ,the concentration of PCB28 was significantly increased by 140.9% and 91.6% in shoots,64.0% and 44.4% in roots,the concentration of PCB28 was highest in root nodules, about 1 362.10 μg/kg and 1 111.34μg/kg respectively. The nitrogen content order in roots and shoots of alfalfa was P+R〉P+SMY)P, the biomass of shoots and roots showed the same trend. In addition,when alfalfa was inoculated with rhizobia especially wild type rhizobial strains, the activities of peroxidase(POD) and superoxide dismutase(SOD) the tolerance and transformation ability of alfalfa to PCBs were enhanced. |
学科主题 | 农业科学 |
收录类别 | CSCD |
语种 | 中文 |
CSCD记录号 | CSCD:5095306 |
源URL | [http://ir.yic.ac.cn/handle/133337/8444] ![]() |
专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
推荐引用方式 GB/T 7714 | 骆永明. 接种根瘤菌对紫花苜蓿吸收转运PCB28及抗PCB28污染能力的影响[J]. 河南农业科学,2014,43(3):65-69. |
APA | 骆永明.(2014).接种根瘤菌对紫花苜蓿吸收转运PCB28及抗PCB28污染能力的影响.河南农业科学,43(3),65-69. |
MLA | 骆永明."接种根瘤菌对紫花苜蓿吸收转运PCB28及抗PCB28污染能力的影响".河南农业科学 43.3(2014):65-69. |
入库方式: OAI收割
来源:烟台海岸带研究所
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