利用丛枝菌根真菌增强铜石棉矿废土中紫孢菌根修复潜力：土壤生态系统修复的天然生物促进剂

IF 8 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment Pub Date : 2025-06-12 DOI:10.1016/j.scitotenv.2025.179884

Sonali Banerjee , Saibal Ghosh , Sonam Jha , Sumit Kumar , Dibyendu Sarkar , Rupali Datta , Pradip Bhattacharyya

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引用次数: 0

摘要

近几十年来，土壤有毒元素污染已成为一个严重的环境问题。以生物为基础的方法，特别是“与丛枝菌根真菌（AMF）相关的植物修复”已经成为一种有前途的、环保的和可持续的技术。本研究评估了AMF在含铬石棉矿山废弃物土壤中对香根草生长和TEs积累能力的影响。在4种不同的AMF品种——球囊菌（glomus hoi）、冠状漏斗菌（coroneliformis coronatum）、冠状球囊菌（Claroideoglomus Claroideoglomus Claroideoglomus etunicatum）中，球囊菌（glomus hoi, M1）在改善土壤质量、缓解TEs胁迫和促进植物健康生长方面表现出较高的效率。与未处理AMF的对照植株相比，Glomus hoi处理的植株根系TEs积累量较高（Ni: 27.44%, Cr: 21.74%），且在生物有效期土壤TEs浓度降低。在所有AMF接种体中都发现了微生物酶活性的周期性增加，与对照相比，M1处理（微生物生物量碳：527.66 mg kg−1）表现出最高的微生物活性。AMF侵染使香根草抗氧化活性增强，减轻了te诱导的胁迫。此外，与其他AMF品种相比，接种了Glomus hoi的香根草植株的球囊素产量（TG: 2.59倍）、磷吸收量和定殖率均较高。基于模型的分析（PLS-SEM和sobol模型）也验证了这些发现，表明AMF的存在提高了植物修复效率。综上所述，适宜AMF品种的应用可以增强霉菌修复潜力，为矿山退化土壤的修复提供了一条可行的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Enhancing mycophytoremediation potential of Chrysopogon zizanioides in chromite-asbestos mine waste soil using arbuscular mycorrhizal fungi: A natural bioaccelerator for soil ecosystem rehabilitation

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Enhancing mycophytoremediation potential of Chrysopogon zizanioides in chromite-asbestos mine waste soil using arbuscular mycorrhizal fungi: A natural bioaccelerator for soil ecosystem rehabilitation

Soil contamination with toxic elements (TEs) has become a serious environmental issue in recent decades. Bio-based approaches especially, “phytoremediation-associated with arbuscular mycorrhizal fungi (AMF)” has emerged as a promising, eco-friendly and sustainable technology worldwide. The present investigation assessed the impact of AMF on the growth and TEs accumulation abilities of vetiver (Chrysopogon zizanioides) in a soil containing chromite-asbestos mine wastes. Among the four different AMF species tested—Glomus hoi, Funneliformis coronatum, Claroideoglomus claroideum, and Claroideoglomus etunicatum—Glomus hoi (M1) showed high efficiency in improving soil quality, mitigating TEs stress and promoting healthy plant growth. In comparison with control plant (devoid of AMF), the higher accumulation of TEs in the roots (Ni: 27.44 %, Cr: 21.74 %) was observed in presence of Glomus hoi and TEs concentration in soil was reduced in bioavailable phase. A periodic increase in microbial-enzymatic activity was found across all AMF inoculums, with the M1 treatment (microbial biomass carbon: 527.66 mg kg⁻¹) exhibiting highest microbial activity as compared with control. The AMF infection resulted in heightened antioxidant activity, which mitigated TE-induced stress in vetiver plants. Additionally, glomalin production (TG: 2.59 folds), phosphorus uptake and colonization percentage were higher in the vetiver plant inoculated with Glomus hoi compared to the other AMF species. The model-based analysis (PLS-SEM and sobol model) also validates these findings, showing that the presence of AMF enhances phytoremediation efficiency. Overall, this study highlighted that the application of appropriate AMF species can enhance mycophytoremediation potential and provide a viable approach for the rehabilitation of mine-degraded soils.

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来源期刊

Science of the Total Environment 环境科学-环境科学

CiteScore

17.60

自引率

10.20%

发文量

8726

审稿时长

2.4 months

期刊介绍： The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.