当前位置: X-MOL 学术Plant Soil › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Bioaugmentation-assisted phytoremediation of manganese and cadmium co-contaminated soil by Polygonaceae plants (Polygonum hydropiper L. and Polygonum lapathifolium L.) and Enterobacter sp. FM-1
Plant and Soil ( IF 4.9 ) Pub Date : 2020-02-13 , DOI: 10.1007/s11104-020-04447-x
Yi Li , Jiamin Lin , Yuanyuan Huang , Yawei Yao , Xueru Wang , Chengzhao Liu , Ying Liang , Kehui Liu , Fangming Yu

Polygonum hydropiper L. and Polygonum lapathifolium L. are two of the well-known indigenous Mn-hyperaccumulators. Enterobacter sp. FM-1 is a plant growth-promoting bacterium (PGPB) that we found in our previous study. We intended to develop a novel strategy to improve Mn and Cd co-contaminated soil phytoremediation by using a Mn and Cd-resistant bacterium for soil bioaugmentation. We carried out this study to investigate the effects of different Enterobacter sp. FM-1 inoculation concentrations (0, 5.0 × 105, 1.0 × 106 and 1.4 × 106 CFU g−1 soil) on the phytoremediation of Mn and Cd by Polygonum hydropiper L. and Polygonum lapathifolium L. in two types of Mn-Cd co-contaminated soil. In both soils, inoculation with Enterobacter sp. FM-1 promoted the growth of both plants. Moreover, inoculation with Enterobacter sp. FM-1 (≥1.0 × 106 CFU g−1 soil) significantly increased soil Mn and Cd bioavailability and decreased the soil pH. Therefore, inoculation with Enterobacter sp. FM-1 (1.4 × 106 CFU g−1 soil) improved Mn and Cd accumulation in both plants. Polygonum hydropiper L. presented excellent Mn accumulation in both soils. Additionally, both plants exhibited strong translocation and excellent phytoextraction and bioaccumulation abilities for Mn and Cd. Our findings indicated that Enterobacter sp. FM-1 is a potent bioaugmentation agent that facilitates Mn and Cd phytoextraction in Polygonum hydropiper L. and Polygonum lapathifolium L.

中文翻译:

蓼科植物(蓼蓼和蓼蓼L.)和肠杆菌属植物对锰和镉共污染土壤的生物强化辅助植物修复。FM-1

Polygonum hydropiper L. 和 Polygonum lapathifolium L. 是两种著名的本土锰超富集植物。肠杆菌属 FM-1 是我们在之前的研究中发现的一种植物生长促进细菌 (PGPB)。我们打算开发一种新策略,通过使用抗锰和镉的细菌进行土壤生物强化来改善锰和镉共污染的土壤植物修复。我们进行这项研究是为了调查不同肠杆菌属的影响。FM-1 接种浓度(0, 5.0 × 105, 1.0 × 106 和 1.4 × 106 CFU g−1 土壤)对蓼蓼和蓼蓼在两种Mn-Cd co 中对Mn 和Cd 的植物修复- 受污染的土壤。在两种土壤中,接种肠杆菌属。FM-1 促进了两种植物的生长。此外,接种肠杆菌属。FM-1 (≥1. 0 × 106 CFU g−1 土壤)显着增加土壤锰和镉的生物有效性并降低土壤 pH 值。因此,接种肠杆菌属。FM-1(1.4 × 106 CFU g−1 土壤)改善了两种植物中锰和镉的积累。蓼蓼在两种土壤中均表现出极好的锰积累。此外,这两种植物都表现出很强的易位性以及对 Mn 和 Cd 的优异植物提取和生物积累能力。我们的研究结果表明肠杆菌属。FM-1 是一种有效的生物强化剂,可促进蓼蓼和蓼蓼中锰和镉的植物提取。在两种土壤中都表现出极好的锰积累。此外,这两种植物都表现出很强的易位性以及对 Mn 和 Cd 的优异植物提取和生物积累能力。我们的研究结果表明肠杆菌属。FM-1 是一种有效的生物强化剂,可促进蓼蓼和蓼蓼中锰和镉的植物提取。在两种土壤中均表现出优异的 Mn 积累。此外,这两种植物都表现出很强的易位性以及对 Mn 和 Cd 的优异植物提取和生物积累能力。我们的研究结果表明肠杆菌属。FM-1 是一种有效的生物强化剂,可促进蓼蓼和蓼蓼中锰和镉的植物提取。
更新日期:2020-02-13
down
wechat
bug