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[1]黄成涛 黄位权 史鼎鼎 徐少慧 黄智刚 蒋代华**.一株耐铅镉真菌(Q7)对香根草吸收累积重金属的效应*[J].应用与环境生物学报,2018,24(04):1-11.[doi:10.3724/SP.J.1145.2017.09030]
 HUANG Chengtao,HUANG Weiquan,SHI Dingding,et al.Effects of a resistant to lead and cadmium fungi on the absorption of heavy metals by Vetiveria zizanioides*[J].Chinese Journal of Applied & Environmental Biology,2018,24(04):1-11.[doi:10.3724/SP.J.1145.2017.09030]
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一株耐铅镉真菌(Q7)对香根草吸收累积重金属的效应*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年04期
页码:
1-11
栏目:
研究论文
出版日期:
2018-08-25

文章信息/Info

Title:
Effects of a resistant to lead and cadmium fungi on the absorption of heavy metals by Vetiveria zizanioides*
文章编号:
201709030
作者:
黄成涛 黄位权 史鼎鼎 徐少慧 黄智刚 蒋代华**
1广西大学农学院 南宁 530004
Author(s):
HUANG Chengtao HUANG Weiquan SHI Dingding XU Shaohui HUANG Zhigang & J IANG Daihua**
Agricultural College, Guangxi university, Nanning 530004, China
关键词:
耐性真菌重金属污染香根草植物—微生物联合修复
Keywords:
resistant fungi heavy metal contaminated Vetiveria zizanioides Plant-microorganism combined remediation
DOI:
10.3724/SP.J.1145.2017.09030
摘要:
探讨耐性真菌联合香根草修复铅镉复合污染土壤效应,采用双因素完全随机区组试验。其中A因素为加菌量,设置4水平:0 g、1 g、3 g、5 g,菌株代号Q7。B因素为铅镉添加量,设置Cd0Pb0、Cd10Pb400、Cd20Pb600、Cd30Pb800、Cd50Pb1200、Cd80Pb1800(单位为mg·kg-1)6种不同铅镉浓度水平。结果表明,添加耐性真菌可显著提高香根草生物量,1 g、3 g和5 g加菌量处理可分别使香根草总干重增加量达到41.9%、74.9%、71.7%。耐性真菌可促进香根草地上部与地下部对铅镉的富集,Cd2+80 mg·Kg-1、Pb2+1800 mg·Kg-1处理下,1 g、3 g和5 g加菌量处理香根草对铅富集量比不加菌处理,地上部分别升高了120.6%、265.4%、242.9%,,地下部分别升高了110.3%、278.2%、266.2%;对镉而言,地上部镉含量分别升高了113.2%、238.3%、217.3%,地下部分别升高了103.1%、298.8%、274.4%。加菌可强化香根草对铅镉污染土壤修复效果,且3 g加菌量强化香根草修复效果要优于1 g和5 g加菌量处理。将耐性真菌与重金属富集植物—香根草在不同铅镉复合污染浓度下构建的联合修复体系,显示出真菌对香根草修复铅镉污染土壤的显著强化效应。图8表2参30
Abstract:
Objectives: To explore plant-microorganism combined remediation effect on the lead ( Pb) and cadmium (Cd) contaminated soil.Methods: w e used two-factor randomized complete block experiment. Factor A was the amount of fungi, at four levels of 0, 1, 3 and 5 g respectively. Factor B was the contamination of lead and cadmium, at six levels of Cd0Pb0, Cd10Pb400, Cd20Pb 600, Cd30Pb800, Cd50Pb1200 and Cd80Pb1800 (data in units of mg·kg-1).Results: The experiment found that the resistant fungi could promote the growth of vetiver. Under the condition of 0, 1, 3 and 5 g resistant fungi, it can increase the vetiver biomass by 41.9%、74.9% and 71.7% respectively. Resistant fungi could stimulate the absorption of Pb and Cd by both aboveground and underground part of Vetiveria zizanioides. W ith 80 mg·Kg-1 of Cd 2+ and 1800 mg·Kg-1 of Pb 2+, it increased the aboveground Pb content in Vetiveria zizanioides by 120. 6% for addition of 1 g fungi, by 265.4% for addition of 3 g fungi, by 242.9% for addition of 5 g fungi, and the underground was increased by 110.3% , 278.2% and 266.2% respectively. For cadmium, the Cd content on the aboveground was increased by 113.2%, 238.3%, 217.3%, and the underground increased by 103.1%, 298.8% and 274.4% respectively. The addition of fungi can Strengthen the effect of vetiver remediation soil contaminated with lead and cadmium, And addition of 3 g fungi to strengthen the remediation effect better than addition of 1 g and 5 g fungi treatment .Conclusions: The combination of resistant fungi and heavy metal enrichment plants - vetiver under different Pb and Cd concentrations , shows that the fungi had a significant effect on the remediation of lead and cadmium contaminated soil.

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备注/Memo

备注/Memo:
收稿日期:2017-09-16 接受日期:2017-10-18
*国家自然科学基金项目(41661076)和广西自然科学基金项目(2014GXNSFAA118287)资助
**通讯作者(E-mail: dhjiang2008@gxu.edu.cn)
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更新日期/Last Update: 2017-11-15