Pedosphere最新文献

英文中文

Nematode-fungus interactions in agriculture: Elucidating the dynamics of pathogenic and biocontrol relationships and their prospects 线虫-真菌在农业中的相互作用：阐明病原和生物防治关系的动态及其前景

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2026-02-01 DOI: 10.1016/j.pedsph.2025.06.004

Lukman AHAMAD , Sudeepta PATTANAYAK , Arshad KHAN , Aasha RANA , Syeda N. BEGUM , Sanwei YANG , Xin XIE

Plant-parasitic nematodes (PPNs) (Meloidogyne sp., Globodera sp., and Pratylenchus sp.) and fungi are two of the most economically important groups of organisms affecting agricultural productivity worldwide. The interactions among PPNs, biocontrol fungi, and soil ecosystem can significantly impact plant health, disease management, and ecosystem functioning. We aimed to provide a comprehensive overview of the complex relationships between PPNs and biocontrol fungi, including pathogenic and biocontrol interactions. We summarized the molecular and ecological mechanisms underlying these interactions, highlighting the key players, signaling pathways, and environmental factors that influence the interactions. We also reviewed current knowledge on fungus-based biocontrol strategies against PPNs, including the development of novel management approaches. Furthermore, we explored the prospects of nematode-fungus interactions in agriculture, including the potential applications and technologies, precision agriculture, and integrated pest management approaches. This review highlights the need for further research on nematode-fungus interactions and their impact on plant infection and productivity, with an emphasis on the development of sustainable and effective strategies for managing PPNs and enhancing plant health in agricultural ecosystems.

植物寄生线虫（Meloidogyne sp., Globodera sp.和Pratylenchus sp.）和真菌是影响全球农业生产力的两个最重要的经济生物类群。ppn、生物防治真菌和土壤生态系统之间的相互作用对植物健康、病害管理和生态系统功能具有重要影响。我们旨在全面概述ppn与生物防治真菌之间的复杂关系，包括致病和生物防治相互作用。我们总结了这些相互作用的分子和生态机制，强调了影响相互作用的关键参与者、信号通路和环境因素。我们还回顾了目前针对PPNs的真菌生物防治策略，包括新管理方法的发展。此外，我们还探讨了线虫-真菌相互作用在农业中的应用前景，包括潜在的应用和技术、精准农业和害虫综合治理方法。这篇综述强调需要进一步研究线虫-真菌相互作用及其对植物感染和生产力的影响，重点是制定可持续和有效的策略来管理ppn和增强农业生态系统中的植物健康。

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引用次数: 0

Soil organic matter revisited: Why humic substances still matter? 土壤有机质重访：为什么腐殖质仍然很重要？

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2026-02-01 DOI: 10.1016/j.pedsph.2025.11.006

Sen DOU , Yifeng ZHANG , Jun SHAN , Meng WU , Rui MA , Song GUAN , Zhongjun JIA

Soil organic matter (SOM) is crucial for ecosystem carbon cycling, soil fertility, and environmental quality. As the main component of SOM, humic substances (HS) are considered a unique category of nonuniformly assembled substances. It is widely accepted that HS are originated from small molecules produced during the decomposition of plant and animal residues or from residual macromolecules. These molecules can be recombined or condensed via enzymatic and mineral catalysis into quasi-macromolecular compounds or compound groups with high condensation (elevated C/H molar ratio) and relatively large molecular weight and are further stabilized by mineral association. Although HS can be regarded as an extension or a narrow definition of SOM, their properties are inherently more complex, and their chemical composition, structure, and formation processes remain controversial. Here, we examine the formation theories, compositional structure, stabilization mechanisms, and functional roles of SOM and HS. We propose that HS indeed differ from non-HS, with HS consisting of both residual and synthetic quasi-macromolecular substance components, which collectively form unique compounds or compound groups with independent characteristics. Consequently, HS remain fundamental to soil science and continue to be widely utilized through various HS-based technologies and products in agriculture and environmental fields.

土壤有机质对生态系统碳循环、土壤肥力和环境质量至关重要。腐植酸物质（HS）作为SOM的主要成分，被认为是一类独特的非均匀组装物质。人们普遍认为HS来源于动植物残体分解过程中产生的小分子或残体大分子。这些分子可以通过酶和矿物催化重组或缩合成高缩合（C/H摩尔比升高）和相对大分子量的准大分子化合物或化合物基团，并通过矿物结合进一步稳定。虽然HS可以被视为SOM的延伸或狭义定义，但其性质本身更为复杂，其化学成分、结构和形成过程仍存在争议。在此，我们研究了SOM和HS的形成理论、组成结构、稳定机制和功能作用。我们认为HS确实不同于非HS， HS由残余和合成的准大分子物质组分组成，它们共同形成具有独立特征的独特化合物或化合物基团。因此，HS仍然是土壤科学的基础，并通过各种基于HS的技术和产品继续在农业和环境领域得到广泛应用。

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引用次数: 0

Occurrence of microplastics in terrestrial habitats: Hazards and pollution abatement 微塑料在陆地栖息地的发生：危害和污染的减少

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2026-02-01 DOI: 10.1016/j.pedsph.2025.01.010

Babalola Aisosa ONI , Kingsley Chukwunonso AGU , Samuel Eshorame SANNI

Microplastics (MPs) are ubiquitous and pose an environmental risk. This review examined MP pollution in terrestrial ecosystems from a myriad of poorly understood sources. Knowledge regarding the occurrence sources, migration behaviors, ecotoxicology, absorption mechanisms, and effects of MPs has also been fully summarized. Microplastics interact with contaminants, such as antibiotics, pesticides, heavy metals, etc., and may act as vectors for contaminant transfer in terrestrial ecosystems. The transportation and retention of MPs in soil are governed by interactions among their inherent properties, such as size, shape, surface charge, and density. Interestingly, MP migration into soil is lacking research. The MPs and nanoplastics were also found in edible fruits and vegetables. The MP contamination in soil affects ecosystems, causing soil structure changes, fertility reduction, and pollutant leaching into groundwater. The MP concentration lies in the range of 43–2 443 and 40–43 000 items kg^-1 in agricultural and urban soils, respectively. This review provides a comprehensive roadmap for future research and a framework for soil MP risk assessment. Future studies on the uptake, accumulation, and translocation of MPs and their associated toxins by plants are essential for evaluating their risks to food security and human health. Research on MPs in terrestrial habitats lacks comprehensive data on their long-term persistence, degradation pathways, and interactions with soil components under varying environmental conditions. Additionally, limited understanding exists regarding MP impacts on soil biodiversity, pollutant mobility, and plant uptake, highlighting the need for innovative detection methods and effective pollution abatement strategies.

微塑料（MPs）无处不在，对环境构成威胁。这篇综述研究了陆地生态系统中无数鲜为人知的MP污染来源。对MPs的发生来源、迁移行为、生态毒理学、吸收机制和影响等方面的知识也进行了全面的总结。微塑料与抗生素、农药、重金属等污染物相互作用，并可能成为陆地生态系统中污染物转移的媒介。MPs在土壤中的运移和滞留受其固有特性（如大小、形状、表面电荷和密度）之间的相互作用所控制。有趣的是，MP进入土壤的迁移缺乏研究。可食用水果和蔬菜中也发现了MPs和纳米塑料。土壤中MP污染影响生态系统，导致土壤结构改变、肥力降低、污染物渗入地下水。在农业土壤和城市土壤中，MP的浓度分别在43-2 ~ 443和40-43 000项kg-1之间。这篇综述为未来的研究提供了一个全面的路线图和土壤MP风险评估框架。未来对植物对MPs及其相关毒素的吸收、积累和转运的研究对于评估其对粮食安全和人类健康的风险至关重要。对陆地生境中MPs的研究缺乏关于其长期持久性、降解途径以及在不同环境条件下与土壤组分相互作用的全面数据。此外，MP对土壤生物多样性、污染物流动性和植物吸收的影响了解有限，因此需要创新的检测方法和有效的污染减排策略。

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引用次数: 0

Unraveling the potential of soil microorganisms for nutrient solubilization and simultaneous pesticide degradation toward sustainable agriculture 揭示土壤微生物在养分增溶和农药降解方面的潜力，以实现可持续农业

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2026-02-01 DOI: 10.1016/j.pedsph.2025.02.001

Shalni SATYA, Milap DASHORA, Preksha PALSANIA, Mohd Ashraf DAR, Garima KAUSHIK

With the changing climate and escalating population, there will be extreme pressure on agricultural food production to ensure global food security. Traditional agricultural practices have relied heavily on hazardous pesticides and chemical fertilizers to boost crop yields. However, their continuous and excessive use has caused significant harm to non-target organisms, including humans, while also leading to a severe decline in soil health due to their indiscriminate and unbalanced application. Hence, serious efforts are needed to control this mounting problem of soil and environmental pollution. One effective strategy involves using microorganisms capable of solubilizing nutrients and breaking down pesticides. These microorganisms improve crop nutrient absorption by solubilizing essential nutrients and simultaneously degrade pesticide residues in soil. Utilizing this ability of microorganisms to degrade agrochemicals, microbial remediation offers a dependable and economical method for reducing the effects of such unwarranted contaminants. This review presents an extensive overview of pesticide use as well as microorganisms in soil as pesticide degraders, nutrient mobilizers (phosphate (PO₄^3--P), potassium (K), and zinc (Zn)), and plant growth promoters for preventing the unsustainable exploitation of natural reserves. This review aims to highlight the diverse benefits these microorganisms offer across various domains while presenting an exciting opportunity to advance sustainable agriculture and firstly establishes a connection between nutrient solubilization and pesticide degradation mediated by microorganisms. It also offers a comprehensive bibliographic review of the application of plant growth-promoting microorganisms for solubilizing nutrients, such as P, K, and Zn, and degrading pesticides as well.

随着气候变化和人口不断增加，农业粮食生产将面临巨大压力，以确保全球粮食安全。传统的农业实践严重依赖有害的农药和化肥来提高作物产量。然而，它们的持续和过度使用对包括人类在内的非目标生物造成了重大伤害，同时由于它们的滥用和不平衡使用也导致土壤健康严重下降。因此，需要认真努力来控制日益严重的土壤和环境污染问题。一个有效的策略是利用能够溶解养分和分解农药的微生物。这些微生物通过溶解必需养分来改善作物的养分吸收，同时降解土壤中的农药残留。利用微生物的这种能力来降解农药，微生物修复提供了一种可靠和经济的方法来减少这些不必要的污染物的影响。本文综述了农药的使用以及土壤中微生物作为农药降解剂、养分动员剂(磷酸盐（PO43—P）、钾（K)和锌（Zn））和植物生长促进剂以防止自然保护区的不可持续开发的广泛概况。本综述旨在强调这些微生物在各个领域提供的各种益处，同时为推进可持续农业提供了令人兴奋的机会，并首次建立了微生物介导的养分增溶和农药降解之间的联系。它还提供了一个全面的文献综述应用的植物生长促进微生物在溶解营养物质，如磷，钾，锌和降解农药以及。

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引用次数: 0

An index for characterizing bioavailability and risk of metals in soil-vegetable systems 表征土壤-蔬菜系统中金属的生物有效性和风险的指标

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2026-02-01 DOI: 10.1016/j.pedsph.2025.07.012

Lanqin YANG , Yuechen YU , Yuanming WANG , Biao HUANG , Wenyou HU

引用次数: 0

Acknowledgment to reviewers 感谢审稿人

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2025-11-20 DOI: 10.1016/S1002-0160(25)00134-1

引用次数: 0

Information for contributors to PEDOSPHERE PEDOSPHERE贡献者的信息

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2025-11-20 DOI: 10.1016/S1002-0160(25)00135-3

引用次数: 0

Impacts of geography, climate, soil properties and vegetation characteristics on soil C:N and N:P stoichiometry across the Qinghai-Tibetan Plateau

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2025-11-20 DOI: 10.1016/S1002-0160(25)00137-7

Wenlan FENG, Pierre MARIOTTE, Jun GU, Xiaodong SONG, Jinling YANG, Fei YANG, Yuguo ZHAO, Ganlin ZHANG

引用次数: 0

Index to Volume 35, 2025 索引到第35卷，2025年

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2025-11-20 DOI: 10.1016/S1002-0160(25)00136-5

引用次数: 0

Cadmium detoxification by Stenotrophomonas sp. via cell wall exfoliation and regeneration mediated by mtgA mtgA介导的窄养单胞菌细胞壁脱落和再生对镉的解毒作用

IF 7.3 2区农林科学 Q1 SOIL SCIENCE

Pedosphere

Pub Date : 2025-06-23 DOI: 10.1016/j.pedsph.2025.06.015

Jianming XU , Tong WANG , Jiawen ZHANG , Haoran GUAN , Zhenmei LÜ , Xin YAN , Randy A. DAHLGREN , Jizheng HE , Xingmei LIU

Understanding bacterial strategies for coping with heavy metal stress is essential for elucidating their resilience in contaminated environments. However, whether cell wall exfoliation contributes to bacterial tolerance under heavy metal stress, such as cadmium (Cd) exposure, remains unclear and requires further investigation. In this study, we reveal a novel self-protective mechanism in Stenotrophomonas sp. H225 isolated from a Cd-contaminated farmland soil, which underwent controlled cell wall exfoliation and regeneration in response to Cd stress up to 200 mg L^-1. Transmission electron microscopy and energy-dispersive X-ray spectroscopy analyses revealed that the exfoliated cell wall fragments served as extracellular Cd sinks, thereby reducing intracellular Cd accumulation. Fourier-transform infrared spectroscopy and enzyme-linked immunosorbent assay indicated progressive peptidoglycan (PG) degradation, with exfoliated PG concentration in solution increasing from 148 ng mL^-1 at 0 mg L^-1 Cd to 240 ng mL^-1 at 200 mg L^-1 Cd. This degradation was counteracted by the compensatory upregulation of PG biosynthesis genes, with the enrichment ratio reaching up to 0.83, facilitating cell wall reconstruction. Transcriptomic analysis and gene knockout experiments identified mtgA (encoding a monofunctional transglycosylase) as a key determinant in cell wall repair and Cd resistance. To our knowledge, this is the first mechanistic evidence that bacteria can mitigate heavy metal toxicity through dynamic cell wall remodeling involving exfoliation and regeneration. This finding enhances our understanding of microbial survival strategies under environmental stress and highlights potential targets for engineering metal-tolerant strains for bioremediation applications.

了解细菌应对重金属胁迫的策略对于阐明它们在污染环境中的恢复能力至关重要。然而，细胞壁脱落是否有助于细菌在重金属胁迫下的耐受性，如镉（Cd）暴露，尚不清楚，需要进一步研究。在这项研究中，我们揭示了从Cd污染的农田土壤中分离的窄养单胞菌sp. H225的一种新的自我保护机制，该细胞在高达200 mg L-1的Cd胁迫下进行了控制的细胞壁脱落和再生。透射电镜和能量色散x射线能谱分析表明，脱落的细胞壁碎片起到了细胞外Cd汇的作用，从而减少了细胞内Cd的积累。傅里叶变换红外光谱和酶联免疫吸附实验表明，多糖（PG）的降解是渐进式的，脱落的PG在溶液中的浓度从0 mg L-1 Cd时的148 ng mL-1增加到200 mg L-1 Cd时的240 ng mL-1。这种降解被PG生物合成基因的代偿性上调所抵消，富集比达到0.83，有利于细胞壁的重建。转录组学分析和基因敲除实验发现，mtgA（编码单功能转糖基化酶）是细胞壁修复和抗Cd的关键决定因素。据我们所知，这是第一个机制证据，表明细菌可以通过包括脱落和再生在内的动态细胞壁重塑来减轻重金属毒性。这一发现增强了我们对环境胁迫下微生物生存策略的理解，并突出了工程耐金属菌株用于生物修复应用的潜在目标。

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