Rhizospheric plant-microbe synergistic interactions achieve efficient arsenic phytoextraction by Pteris vittata
Rhizospheric plant-microbe synergistic interactions achieve efficient arsenic phytoextraction by Pteris vittata
复制标题
根际植物-微生物协同相互作用实现凤尾蕨植物高效提取砷
DOI：
10.1016/j.jhazmat.2022.128870
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发表时间：
2022
影响因子：
13.6
通讯作者：
Chien Mei-Fang
中科院分区：
文献类型：
--
作者：
Yang Chongyang;Han Ning;Inoue Chihiro;Yang Yu-Liang;Nojiri Hideaki;Ho Ying-Ning;Chien Mei-Fang
植物提取是一种利用植物和相关微生物从受污染的土壤中去除砷(As)的经济、环保的技术。凤尾草是研究最多的超积累植物，它通过根有效地吸收无机砷。砷的溶解和形态发生在植物根际吸收之前，这在As植物提取BYP中起着关键作用。维塔塔。本研究探讨了FFP与代谢的相关性。植物提取过程中的维生素和相关根际微生物。三个月的盆栽OFP。对污染土壤进行了腐植试验。在第2个月，根际土壤中的水溶态As浓度升高，pH值下降，表明酸性代谢产物可能是As增溶的原因。建立了一个相关网络来阐明OFP根际代谢产物、细菌和真菌之间的相互作用。维塔塔。我们的结果表明，植物是根际微生物区系生成的主要驱动力，根际微生物群落和根际OFP中的代谢产物都是植物。维生素A与生物可利用性砷的增加有关。多组学分析表明，翼蛋白丰富了微生物，这些微生物可能会促进植物提取。本研究拓展了植物-微生物协同超积累植物提取的研究现状，为开发高效的植物修复途径提供线索。
Phytoextraction is a cost-effective and eco-friendly technology to remove arsenic (As) from contaminated soil using plants and associated microorganisms.Pteris vittatais the most studied As hyperaccumulator, which effectively takes up inorganic arsenate via roots. Arsenic solubilization and speciation occur prior to plant absorption in the rhizosphere, which play a key role in As phytoextraction byP. vittata. This study investigated the metabolomic correlation ofP. vittataand associated rhizospheric microorganisms during As phytoextraction. Three-month pot cultivation ofP. vittatain As polluted soil was conducted. In rhizosphere, an increase of water-soluble As concentration and a decrease of pH was observed in the second month, suggesting acidic metabolites as a possible cause of As solubilization. A correlation network was built to elucidate the interactions among metabolites, bacteria and fungi in the rhizosphere ofP. vittata. Our results demonstrate that the plant is the major driving force of rhizospheric microbiota generation, and both microbial community and metabolites in rhizosphere ofP. vittatacorrelate to increased bioavailable As. Multi-omics analysis revealed that pterosins enrich microbes that potentially promote As phytoextraction. This study extends the current view of rhizospheric plant-microbes synergistic effects of hyperaccumulators on phytoextraction, which provides clues for developing efficient As phytoremediation approaches.