硫腙生物修复中与根瘤菌相关的微生物群。

IF 3.4 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Esequiel Santos, Fábio Ribeiro Pires, Iasmim Marcella Souza, Tayna Sousa Duque, Irene da Silva Coelho, Karen Caroline Ferreira Santaren, Fernando Barboza Egreja Filho, Robson Bonomo, Amanda Duim Ferreira, Douglas Gomes Viana, José Barbosa Dos Santos
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引用次数: 0

摘要

本研究的目的是利用定量方法(二氧化碳进化、微生物生物量碳和代谢商数)和细菌鉴定(PCR-DGGE 技术)确定微生物根瘤(Canavalia ensiformis)在植物修复腙中的效率。实验采用完全随机设计,2x4 因子方案,四次重复。处理包括根瘤土壤(栽培了箭尾藻的土壤)和非根瘤土壤(未栽培的土壤);以及四种程度的磺胺草酮污染(0、200、400 和 800 g ha-1 a.i.)。利用 PCR-DGGE 技术,可以区分出 C. ensiformis 根圈活动中的两种细菌群。形成的第二种细菌群在净化被磺胺草酮残留物污染的土壤时更有效。在净化含有相当于 200 g ha-1 活性除草剂磺草酮残留物的土壤时,箭毒草根层中的微生物群具有较高的效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Rhizosphere-associated microbiota of Canavalia ensiformis in sulfentrazone bioremediation.

The objective of this study was to determine the efficiency of the microbial rhizosphere (Canavalia ensiformis) in the phytoremediation of sulfentrazone using quantification methods (CO2 evolution, microbial biomass carbon, and metabolic quotient) and identification of bacteria (PCR-DGGE technique). The experiment was conducted in a completely randomized design, in a 2x4 factorial scheme, with four replications. The treatments were composed of rhizospheric soil (cultivated with C. ensiformis) and non-rhizosphere soil (uncultivated soil); and four levels of contamination by sulfentrazone (0, 200, 400, and 800 g ha-1 a.i.). The microbiota associated with the rhizosphere of C. ensiformis efficiently reduced sulfentrazone residues in the soil, with better performance at the dose of 200 g ha-1 a.i. Using the PCR-DGGE technique allowed the distinction of two profiles of bacteria in the rhizospheric activity of C. ensiformis. The second bacterial profile formed was more efficient in decontaminating soil contaminated with sulfentrazone residue. The microbiota associated with the rhizosphere of C. ensiformis has an efficient profile in decontaminating soils with residues equivalent to 200 g ha-1 a.i. the herbicide sulfentrazone.

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来源期刊
International Journal of Phytoremediation
International Journal of Phytoremediation 环境科学-环境科学
CiteScore
7.60
自引率
5.40%
发文量
145
审稿时长
3.4 months
期刊介绍: The International Journal of Phytoremediation (IJP) is the first journal devoted to the publication of laboratory and field research describing the use of plant systems to solve environmental problems by enabling the remediation of soil, water, and air quality and by restoring ecosystem services in managed landscapes. Traditional phytoremediation has largely focused on soil and groundwater clean-up of hazardous contaminants. Phytotechnology expands this umbrella to include many of the natural resource management challenges we face in cities, on farms, and other landscapes more integrated with daily public activities. Wetlands that treat wastewater, rain gardens that treat stormwater, poplar tree plantings that contain pollutants, urban tree canopies that treat air pollution, and specialized plants that treat decommissioned mine sites are just a few examples of phytotechnologies.
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