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Updated: Jul 30, 2026

High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils

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Published on: February 9, 2019

植物内生肠杆菌sp. 在内生植物内生肠杆菌sp. YG-14通过 siderophore 和其在增强植物稳定中的作用中介导动员

Jiawei Chen¹, Xuan Zhang², Min Kuang¹

¹Hunan Provincial Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, Hunan, PR China.

Journal of hazardous materials

|December 22, 2023

概括

植物内细胞如Enterobacter sp. 这样的. YG-14可以通过调动土壤As和促进植物生长来增强 (As) 植物修复. 这项研究表明YG-14是YG-14.

科学领域:

环境微生物学环境微生物学
植物科学植物科学
生物修复是一种生物修复.

背景情况:

(As) 污染对植物健康和土壤生态系统构成重大威胁.
植物吸收效率和毒性限制了As的植物修复.
促进植物生长的微生物为增强As植物修复提供了潜在的解决方案.

研究的目的:

为了研究内菌Enterobacter sp.的作用. 在 (As) 物理修复中YG-14.
阐明YG-14增强亚糖积累和亚糖压力下的植物生长的机制.
评估YG-14作为改进植物修复策略的工具的潜力.

主要方法:

隔离和表征的Enterobacter sp. 这种细菌. 从土壤中发现YG-14.
构建一个 siderophore 合成基因删除突变 (ΔentD) 的 YG-14.
评估YG-14对R. pseudoacacia L.在As压力下的Fe-As调动,As吸收,根植殖和植物生长的影响.

主要成果:

肠道细菌 sp. 肠道细菌 sp. 在采矿土壤中,YG-14通过分泌肠杆菌素,有效地调动了Fe-As复合物.
通过细胞外聚合物吸附和PitA吸收,YG-14增强了宿主植物中的As积累.
由YG-14进行的根植入与As积累正相关,促进了植物生长,同时减轻了氧化损伤.

结论:

植物内 Enterobacter sp. 这种细菌. YG-14在促进As植物修复和在As压力下植物生长方面发挥着至关重要的作用.
内植物的 siderophore 生产是调动土壤 As 和增强植物吸收的关键.
利用高 siderophore 生产内植物是一个可行的策略,以提高植物修复疗效.

关键词:

酸盐和铁的生物积累它们是内植物 (Endophyte).肠道细菌素 (Enterobactin) 是一种细胞内生物.氧化铁-As释放的铁氧化物植物疗法 (Phytoremediation) 是一种植物疗法.

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