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土壤圈（英文版）
土壤圈（英文版）

周健民

双月刊

1002-0160

eopedos@issas.ac.cn； pedosphere@issas.ac.cn； rmdu@issas.ac.cn eopedo@issas.ac.cn

025-86881235、86881359

210008

南京市北京东路71号中国科学院南京土壤研究所

土壤圈（英文版）/Journal An International Journal PedosphereCSCDCSTPCD北大核心SCI
查看更多>>《PEDOSPHERE》（土壤圈）是中国出版的土壤学科唯一外文版国际性学术期刊，也是我国土壤学领域唯一的SCI源刊。 主要刊登土壤学领域国内外未曾公开发表的具有坚实科学理论和实验基础与创新的最新高水平科研成果，内容包括土壤化学、土壤物理学、土壤生物与生物化学、土壤肥力与植物营养、土壤环境与生态学、土壤微生物学、土壤地理、水土保持、土壤信息与遥感技术、土壤质量与土壤修复等与生物圈、岩石圈、水圈和大气圈密切关联的土壤科学理论、实验技术及应用的学术研究论文、专题综述、研究简报、书评等。旨在及时传播国内外土壤科学最新成果，促进国际学术交流与合作，推动中国和世界土壤科学事业的发展。
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    Effects of arbuscular mycorrhizal fungi on zinc uptake,translocation and accumulation in winter wheat during whole plant growth stages

    Jing YANGChuangye ZHANGYifan LIUYuanzhe MA...
    374-384页
    查看更多>>摘要：Although arbuscular mycorrhizal fungi(AMF)could play important roles in zinc(Zn)uptake in host plants,the effects of AMF on Zn uptake and transport in winter wheat during the whole growth stages remain unclear.A pot experiment was conducted to investigate the effects of Funneliformis mosseae(Fm)and Claroideoglomus etunicatum(Ce)on Zn absorption,transport,and accumulation in winter wheat growing in soils spiked with different Zn levels(0,2.5,and 25 mg kg-1).The results showed that there was a significant correlation between mycorrhizal colonization rate and Zn absorption efficiency in winter wheat roots during the post-anthesis period,but there was no significant correlation during the pre-anthesis period.Arbuscular mycorrhizal fungi significantly increased Zn concentrations(0.56-1.58 times)in wheat grains under 0 mg kg-1 Zn level,but decreased Zn concentrations in wheat grains under 25 mg kg-1 Zn level.Additionally,at the filling and maturity stages,AMF increased Zn absorption rate and the contribution of root Zn uptake to grain Zn by 3-14 and 0.36-0.64 times,respectively,under 0 mg kg-1 Zn level and 0.21-1.02 and 0.27-0.37 times,respectively,under 2.5 mg kg-1 Zn level.However,AMF decreased root Zn absorption rate(0.32-0.61 times)and increased the contribution of Zn remobilization in vegetative tissues to grain Zn(1.69-2.01 times)under 25 mg kg-1 Zn level.This study would complement the mechanisms and effects of AMF on Zn absorption and transport in winter wheat and provide a potential method for the application of AMF to enrich wheat grain Zn.
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    Arbuscular mycorrhizal fungi regulate plant mineral nutrient uptake and partitioning in iron ore tailings undergoing eco-engineered pedogenesis

    Zhen LISonglin WUYunjia LIUQing YI...
    385-398页
    查看更多>>摘要：Excess available K and Fe in Fe ore tailings with organic matter amendment and water-deficiencies may restrain plant colonization and growth,which hinders the formation of eco-engineered soil from these tailings for sustainable and cost-effective mine site rehabilitation.Arbuscular mycorrhizal(AM)fungi are widely demonstrated to assist plant growth under various unfavorable environments.However,it is still unclear whether AM symbiosis in tailings amended with different types of plant biomass and under different water conditions could overcome the surplus K and Fe stress for plants in Fe ore tailings,and if so,by what mechanisms.Here,host plants(Sorghum sp.Hybrid cv.Silk),either colonized or noncolonized by the AM fungi(Glomus spp.),were cultivated in lucerne hay(LH,C∶N ratio of 18)-or sugarcane mulch(SM,C∶N ratio of 78)-amended Fe ore tailings under well-watered(55％water-holding capacity(WHC)of tailings)or water-deficient(30％WHC of tailings)conditions.Root mycorrhizal colonization,plant growth,and mineral elemental uptake and partitioning were examined.Results indicated that AM fungal colonization improved plant growth in tailings amended with plant biomass under water-deficient conditions.Arbuscular mycorrhizal fungal colonization enhanced plant mineral element uptake,especially P,both in the LH-and SM-amended tailings regardless of water condition.Additionally,AM symbiosis development restrained the translocation of excess elements(i.e.,K and Fe)from plant roots to shoots,thereby relieving their phytotoxicity.The AM fungal roles in P uptake and excess elemental partitioning were greater in LH-amended tailings than in SM-amended tailings.Water deficiency weakened AM fungal colonization and functions in terms of mineral element uptake and partitioning.These findings highlighted the vital role AM fungi played in regulating plant growth and nutrition status in Fe ore tailings technosol,providing an important basis for involvement of AM fungi in the eco-engineered pedogenesis of Fe ore tailings.
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    Mycorrhizal fungi mitigate nitrogen losses of an experimental grassland by facilitating plant uptake and soil microbial immobilization

    Yangyang JIAMarcel G.A.VAN DER HEIJDENAlain Y.VALZANO-HELDMarkus JOCHER...
    399-410页
    查看更多>>摘要：Nitrogen(N)is one of the most limited nutrients of terrestrial ecosystems,whose losses are prevented in tightly coupled cycles in finely tuned systems.Global change-induced N enrichment through atmospheric deposition and application of vast amounts of fertilizer are now challenging the terrestrial N cycle.Arbuscular mycorrhizal fungi(AMF)are known drivers of plant-soil nutrient fluxes,but a comprehensive assessment of AMF involvement in N cycling under global change is still lacking.Here,we simulated N enrichment by fertilization(low/high)in experimental grassland microcosms under greenhouse conditions in the presence or absence of AMF and continuously monitored different N pathways over nine months.We found that high N enrichment by fertilization decreased the relative abundance of legumes and the plant species dominating the plant community changed from grasses to forbs in the presence of AMF,based on aboveground biomass.The presence of AMF always maintained plant N:phosphorus(P)ratios between 14 and 16,no matter how the soil N availability changed.Shifts in plant N∶P ratios due to the increased plant N and P uptake might thus be a primary pathway of AMF altering plant community composition.Furthermore,we constructed a comprehensive picture of AMF's role in N cycling,highlighting that AMF reduced N losses primarily by mitigating N leaching,while N2O emissions played a marginal role.Arbuscular mycorrhizal fungi reduced N2O emissions directly through the promotion of N2O-consuming denitrifiers.The underlying mechanism for reducing N leaching is mainly the AMF-mediated improved nutrient uptake and AMF-associated microbial immobilization.Our results indicate that synergies between AMF and other soil microorganisms cannot be ignored in N cycling and that the integral role of AMF in N cycling terrestrial ecosystems can buffer the upcoming global changes.
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    Effects of interactions between arbuscular mycorrhizal fungi and bacteria on the growth of Lotus corniculatus L.:From the perspective of regulating rhizosphere fungal community

    Qing ZHANGJin CHENYingyue LITao HUANG...
    411-423页
    查看更多>>摘要：Arbuscular mycorrhizal fungi(AMF)provide essential nutrients to crops and are affected by fertilizers.Phosphate-solubilizing bacteria(PSB),nitrogen-fixing bacteria(NFB),and AMF have mutually beneficial relationships with plants,but the effects of their interactions on plant growth by regulating rhizosphere fungal community have not been sufficiently studied.In this study,a greenhouse pot experiment was conducted to investigate the interactions between AMF and bacteria(PSB and NFB)on the growth of Lotus corniculatus L.Specifically,the role of rhizosphere fungal community in the growth of Lotus corniculatus L.was explored using Illumina MiSeq high-throughput sequencing.The results showed that combined inoculation of AMF with PSB and NFB increased plant biomass,plant height,and fungal colonization rate.The richness,complexity,and stability of rhizosphere fungal community also increased after combined inoculation of AMF with PSB and/or NFB,particularly with PSB.In addition,combined inoculation of AMF with PSB and NFB enriched the abundance of beneficial microorganisms,with Chaetomium and Humicola showing the greatest alterations.The structural equation model showed that the interactions of AMF with PSB and NFB promoted plant growth by affecting fungal network structure and soil enzyme activities involved in carbon,nitrogen,and phosphorus cycling.These findings provide evidence for the effects of interactions of AMF with PSB and NFB on rhizosphere fungal community and plant growth.
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    Effects of microplastic polystyrene,simulated acid rain and arbuscular mycorrhizal fungi on Trifolium repens growth and soil microbial community composition

    Wanlin LIYan XIAO
    424-437页
    查看更多>>摘要：Microplastic pollution is a global and ubiquitous environmental problem in the oceans as well as in the terrestrial environment.We examined the fate of microplastic polystyrene(MPS)beads in experimental soil in the presence and absence of symbiotic arbuscular mycorrhizal fungi(AMF)and simulated acid rain(SAR)to determine whether the combinations of these three factors altered the growth of white clover Trifolium repens.We found that MPS,SAR,or AMF added singly to soil did not alter T.repens growth or yields.In contrast,MPS and AMF together significantly reduced shoot biomass,while SAR and MPS together significantly reduced soil available phosphorus independent of AMF presence.Microplastic polystyrene,AMF,and SAR together significantly reduced soil NO3--N.Arbuscular mycorrhizal fungi added singly also enriched the beneficial soil bacteria(genus Solirubrobacter),while MPS combined with AMF significantly enriched the potential plant pathogenic fungus Spiromastix.Arbuscular mycorrhizal fungi inoculation with MPS increased the abundance of soil hydrocarbon degraders independent of the presence of SAR.In addition,the abundance of soil nitrate reducers was increased by MPS,especially in the presence of AMF and SAR.Moreover,SAR alone increased the abundance of soil pathogens within the fungal community including antibiotic producers.These findings indicate that the coexistence of MPS,SAR,and AMF may exacerbate the adverse effects of MPS on soil and plant health.
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    Screening of Streptomyces strains helping arbuscular mycorrhizal symbiosis against pepper(Capsicum annuum L.)Phytophthora blight

    Xin WANGYifan LIUBaiping HEMinghui LI...
    438-446页
    查看更多>>摘要：Mycorrhiza helper bacteria(MHB)can promote the formation and functioning of arbuscular mycorrhizal(AM)symbiosis,but their role and application potential in coping with soil-borne diseases are still unclear.A 14-week greenhouse pot experiment was conducted to obtain several actinomycete strains helping AM symbiosis in suppressing the Phytophthora blight of pepper(Capsicum annuum L.),using a soil inoculated with Phytophthora capsici after sterilization.Five Streptomyces strains,including S.pseudogriseolus,S.albogriseolus,S.griseoaurantiacus,S.tricolor,and S.tendae,as well as the AM fungus(Funneliformis caledonium)were tested.The Phytophthora blight severity reached 66％at full productive stage in the uninoculated control,and inoculation of F.caledonium,S.griseoaurantiacus,and S.tricolor alone significantly decreased(P＜0.05)it to 47％,40％,and 35％,respectively.Compared to F.caledonium alone,additional inoculation of S.tricolor or S.tendae,which were isolated from the rhizosphere of a healthy individual in an infected field,significantly elevated(P＜0.05)root mycorrhizal colonization,root biomass,fruit yield,and total K acquisitions of pepper and further significantly decreased(P＜0.05)blight severity.According to the feature of enhancing disease-suppression by AM symbiosis,both S.tricolor and S.tendae were confirmed as MHB strains here.Specifically,S.tendae had a stronger performance in directly accelerating mycorrhization,while S.tricolor was also an antagonist to the pathogenic P.capsici.Furthermore,S.griseoaurantiacus with the independent disease-suppression function was not an MHB strain here.The redundancy analyses demonstrated that when AM fungus was present,root mycorrhizal colonization replaced soil pH becoming the main factor affecting pepper Phytophthora blight.Thus,S.tricolor and S.tendae seemed to have the value of preparation and application in the future to help AM symbiosis against pepper Phytophthora blight.
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    Arbuscular mycorrhizal fungi inoculation and exogenous indole-3-acetic acid application induce antioxidant defense response to alleviate cadmium toxicity in Broussonetia papyrifera

    Xue LIJingwei LIANGHongjian WEIYuxuan KUANG...
    447-459页
    查看更多>>摘要：Cadmium(Cd)contamination in soil poses a huge threat to plants even at low concentrations;Broussonetia papyrifera has great potential in remediation of soil heavy metal contamination.However,whether exogenous indole-3-acetic acid(IAA)application and arbuscular mycorrhizal fungi(AMF)have synergistic effects on Cd tolerance of B.papyrifera remains unclear.To investigate the effects of AMF inoculation and IAA application on the tolerance of B.papyrifera to Cd stress,two experiments were conducted:the first to investigate the effect of AMF(Rhizophagus irregularis)inoculation on the tolerance of B.papyrifera to Cd stress and the second to investigate the combined effects of AMF inoculation and IAA application on the tolerance of B.papyrifera to Cd stress.Parameters including endogenous hormone concentration,antioxidant defense response,malondialdehyde(MDA)content,and gene expression related to antioxidant enzyme system and hormone were measured.The results indicated that AMF alleviated Cd toxicity of B.papyrifera by reducing MDA content and improving antioxidant enzyme activities and Cd absorption capacity.Furthermore,the combination of AMF inoculation and IAA application had a synergetic effect on the tolerance of B.papyrifera to Cd stress through upregulating BpAUX1 and BpAUX2,which might contribute to root growth and root xylem synthesis,and by upregulating BpSOD2 and BpPOD34 to enhance the antioxidant enzyme system.This work provides a new insight into the application of IAA in the remediation of soil Cd pollution by mycorrhizal plants.
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    Arbuscular mycorrhizal fungi and endophytic fungi differentially modulate polyamines or proline of peach in response to soil flooding

    Shengmin LIANGYingning ZOUBo SHUQiangsheng WU...
    460-472页
    查看更多>>摘要：Symbiotic fungi are involved in plant flooding tolerance,while the underlying mechanism is not yet known.Since polyamines(PAs)and proline are also associated with stress tolerance,it is hypothesized that the enhancement of stress resistance by symbiotic fungi is associated with changes in PAs and/or proline.The aim of this study was to analyze the effect of inoculation with Funneliformis mosseae and Serendipita indica on plant growth,PAs,and proline and the metabolisms in peach(Prunus persica)under flooding.Two-week flooding did not affect root colonization frequence of F.mosseae,while it promoted root colonization frequence of S.indica.Under flooding,plants inoculated with F.mosseae and S.indica maintained relatively higher growth rates than uninoculated plants.Funnelifoormis mosseae promoted root ornithine(Orn)contentration and arginine(Arg)and Orn decarboxylase activities under flooding,which promoted putrescine(Put),cadaverine(Cad),and spermidine(Spd)contentrations.Conversely,S.indica decreased contentrations of Arg,Orn,and agmatine and Arg decarboxylase activities,thus decreasing PA contentrations under flooding.Polyamines were negatively correlated with the expression of PA uptake transporter genes,PpPUT1 and PpPUT2,in peach.Polyamine transporter genes of F.mosseae(FmTPO)and S.indica(SiTPO)were regulated by flooding,of which FmTPO1 was positively correlated with Put,Cad,and Spd,along with positive correlations of Spd with SiTPO1,SiTPO2,and SiTPO4.Under flooding,F.mosseae decreased proline concentration,while S.indica increased proline concentration and correlated with expression of aΔ1-pyrroline-5-carboxylate synthetase gene,PpP5CS2.It was thus concluded that F.mosseae modulated polyamine accumulation,while S.indica induced proline accumulation to tolerate flooding.
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    Ectomycorrhizal fungi and dark septate endophyte inoculation improve growth and tolerance of Pinus tabulaeformis under cadmium stress

    Yong ZHOUYanyan ZHENGPengwei LILingjie XU...
    473-483页
    查看更多>>摘要：Forest trees can establish symbiotic associations with dark septate endophytes(DSEs)and ectomycorrhizal fungi(ECMF)simultaneously.However,the combined effects of these two fungi on the growth and cadmium(Cd)tolerance of host plants remain largely unexplored.To address this knowledge gap,a pot experiment was conducted to examine the effects of the interaction between an ECMF strain(Suillus granulatus)and a DSE strain(Pseudopyrenochaeta sp.)on Pinus tabulaeformis under Cd stress,by assessing plant growth and physiological parameters,nutrient uptake,and soil properties.Notably,the colonization rates of both fungal strains were found to increase in response to Cd stress,with the extent of this increase being influenced by the specific fungal species and the Cd level in the soil.Compared to the non-inoculation treatment,single inoculation with fungal strain resulted in enhanced biomass,root development,and nutrient contents in P.tabulaeformis seedlings under Cd stress.Furthermore,a synergistic effect was observed when these seedlings were co-inoculated with S.granulatus and Pseudopyrenochaeta sp.,as indicated by significantly greater measurements in various indicators compared to both the single and non-inoculation treatments.Fungal inoculation effectively regulated the antioxidant defense responses and photosynthesis of P.tabulaeformis seedlings subjected to Cd stress,particularly in the co-inoculation treatment.In addition,fungal inoculation facilitated the Cd accumulation in P.tabulaeformis,suggesting a promising potential for the implementation of bioremediation strategies in the areas contaminated with heavy metals.The findings from this study indicate that the utilization of root symbiotic fungi obtained from stress environments could potentially enhance the growth performance and tolerance of P.tabulaeformis towards heavy metals,and co-inoculation of both fungal groups may result in even more pronounced synergistic effects on the overall fitness of the plant.
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    Occurrence of dark septate endophytes in Phragmites australis in the Baiyang Lake and their resistance to Cd stress

    Minghui XUXia LIQiannan YEFeng GONG...
    484-496页
    查看更多>>摘要：Heavy metal pollution poses a serious hazard to human health,and microbial remediation of heavy metals in soil has been widely studied.A group of ascomycetes classified as dark septate endophytes(DSEs)colonize plant roots and benefit host plants under abiotic stress conditions.In this study,Phragmites australis,a common remediation plant in the Baiyang Lake in North China,was investigated.Soils and roots of P.australis were collected in typical heavy metal-contaminated sites,and the species diversity and community structure of DSEs in P.australis roots were studied.In addition,DSE strains were isolated,cultured,and tested for their tolerance to Cd stress.The results showed that DSEs occurred extensively in P.australis roots,forming typical dark septate hyphae,with a total colonization rate of 19.7％-83.1％o.Morphological and internal transcribed spacer sequencing analyses were used to identify 10 species within 9 genera of DSE fungi.Among these fungi,6 strains with considerable resistance to Cd stress were identified.The biomasses of Poaceascoma helicoides,Alternaria doliconidium,and Acrocalymma vagum strains increased as the Cd levels increased.These results can not only help to understand plant-DSE interactions in wetland environments,but also provide a theoretical basis for making full use of DSE fungi to alleviate heavy metal contamination in soil.
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