Pedosphere最新文献

{"title":"Integrative multi-omics approaches reveal that Asian cultivated rice domestication influences its symbiotic relationship with arbuscular mycorrhizal fungi","authors":"Lei TIAN ,&nbsp;Jilin WANG ,&nbsp;Hongping CHEN ,&nbsp;Weiqiang LI ,&nbsp;Lam-Son Phan TRAN ,&nbsp;Chunjie TIAN","doi":"10.1016/j.pedsph.2023.09.007","DOIUrl":"10.1016/j.pedsph.2023.09.007","url":null,"abstract":"<div><p>Potential changes in the symbiotic relationship between rice (<em>Oryza sativa</em>) and microorganisms have occurred during the domestication of Asian cultivated rice (<em>O. sativa</em>) from common wild rice (<em>Oryza rufipogon</em>) and in response to global climate change, along with evolving adaptations to the environment. The potential genes may express differently or dominate the symbiotic relationships between arbuscular mycorrhizal fungi (AMF) and plants, which may be beneficial to rice breeding. To date, research on this important topic has been limited. In this study, we aimed to examine the symbiotic relationships of Asian common wild and cultivated rice species with AMF. By conducting a comparative metagenomic analysis of the rhizospheres of wild and cultivated rice species, we identified differences in <em>Rhizophagus intraradices</em>-related genes associated with wild and cultivated rice, as well as functional genes of AMF. Furthermore, we obtained root-related genes associated with AMF from transcriptome data of rice roots. Our results collectively suggest that <em>R. intraradices</em>-related genes in the rhizosphere of wild rice may be more conducive to its colonization. Additionally, bacteria from the Nitrosomonadaceae and Nitrospiraceae families identified in the rhizosphere of wild rice exhibited positive correlations with <em>R. intraradices</em>-related genes with protein identifiers 1480749 and 1871253, which may indicate that nitrobacteria can enhance the functions of <em>R. intraradices</em> in association with wild rice. Next, in a case study using comparative transcriptome analysis of root samples obtained from <em>R. intraradices</em>-inoculated wild and cultivated rice plants, we found significantly higher expression levels of the strigolactone pathway-related genes <em>DWARF3</em> (<em>D3</em>) and <em>DWARF14</em> (<em>D14</em>) in <em>R. intraradices</em>-inoculated common wild rice than in <em>R. intraradices</em>-inoculated cultivated rice. This study provides a theoretical basis for identifying the effects of domestication on mycorrhizal symbiosis-related genes, which could be promoted in wild rice in the future.},</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 315-327"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135638296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Career opportunities in Institute of Soil Science, CAS, Nanjing, China","authors":"","doi":"10.1016/S1002-0160(24)00024-9","DOIUrl":"https://doi.org/10.1016/S1002-0160(24)00024-9","url":null,"abstract":"","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Page 524"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140646045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arbuscular mycorrhizal fungi inoculation and exogenous indole-3-acetic acid application induce antioxidant defense response to alleviate cadmium toxicity in Broussonetia papyrifera","authors":"Xue LI,&nbsp;Jingwei LIANG,&nbsp;Hongjian WEI,&nbsp;Yuxuan KUANG,&nbsp;Hui CHEN,&nbsp;Ming TANG,&nbsp;Wentao HU","doi":"10.1016/j.pedsph.2023.10.004","DOIUrl":"10.1016/j.pedsph.2023.10.004","url":null,"abstract":"<div><p>Cadmium (Cd) contamination in soil poses a huge threat to plants even at low concentrations; <em>Broussonetia papyrifera</em> 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 <em>B. papyrifera</em> remains unclear. To investigate the effects of AMF inoculation and IAA application on the tolerance of <em>B. papyrifera</em> to Cd stress, two experiments were conducted: the first to investigate the effect of AMF (<em>Rhizophagus irregularis</em>) inoculation on the tolerance of <em>B. papyrifera</em> to Cd stress and the second to investigate the combined effects of AMF inoculation and IAA application on the tolerance of <em>B. papyrifera</em> 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 <em>B. papyrifera</em> 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 <em>B. papyrifera</em> to Cd stress through upregulating <em>BpAUX1</em> and <em>BpAUX2</em>, which might contribute to root growth and root xylem synthesis, and by upregulating <em>BpSOD2</em> and <em>BpPOD34</em> 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.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 447-459"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135849548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mycorrhizae and sustainable soil solutions","authors":"Junli HU,&nbsp;Fayuan WANG,&nbsp;Junling ZHANG,&nbsp;Liangdong GUO,&nbsp;Marcel G.A. VAN DER HEIJDEN","doi":"10.1016/j.pedsph.2024.02.003","DOIUrl":"10.1016/j.pedsph.2024.02.003","url":null,"abstract":"","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 267-268"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139878975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of interactions between arbuscular mycorrhizal fungi and bacteria on the growth of Lotus corniculatus L.: From the perspective of regulating rhizosphere fungal community","authors":"Qing ZHANG ,&nbsp;Jin CHEN ,&nbsp;Yingyue LI ,&nbsp;Tao HUANG ,&nbsp;Kailing XIE ,&nbsp;Jing ZHOU ,&nbsp;Xiaoyu LI","doi":"10.1016/j.pedsph.2023.12.003","DOIUrl":"10.1016/j.pedsph.2023.12.003","url":null,"abstract":"<div><p>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 <em>Lotus corniculatus</em> L. Specifically, the role of rhizosphere fungal community in the growth of <em>Lotus corniculatus</em> 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 <em>Chaetomium</em> and <em>Humicola</em> 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.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 411-423"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138623504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Responses of arbuscular mycorrhizal fungi to straw return and nitrogen fertilizer reduction in a rainfed maize field","authors":"Zhenling PENG ,&nbsp;Hao XI ,&nbsp;Lin MAO ,&nbsp;Huyuan FENG ,&nbsp;Jianjun ZHANG ,&nbsp;Yongjun LIU","doi":"10.1016/j.pedsph.2023.03.012","DOIUrl":"10.1016/j.pedsph.2023.03.012","url":null,"abstract":"<div><p>Straw return can be used to reduce fertilizer input and improve agricultural sustainability and soil health. However, how straw return and reduced fertilizer application affect beneficial soil microbes, particularly arbuscular mycorrhizal fungi (AMF), remains poorly understood. Here, we conducted a five-year field experiment in a rainfed maize field on the Loess Plateau of northwestern China. We tested four treatments with straw return combined with four nitrogen (N) application rates, <em>i.e</em>., 100%, 80%, 60%, and 0% of the common N application rate (225 kg N ha^-1 year^-1) in this region, and two reference treatments (full or no N application), with three replicates for each treatment. Mycorrhizal colonization was quantified and AMF communities colonizing maize roots were characterized using Illumina sequencing. Forty virtual taxa (VTs) of AMF were identified in root samples, among which VT113 (related to <em>Rhizophagus fasciculatus</em>) and VT156 (related to <em>Dominikia gansuensis</em>) were the predominant taxa. Both root length colonization and AMF VT richness were sensitive to N fertilization, but not to straw return; furthermore, both gradually increased with decreasing N application rate. The VT composition of the AMF community was also affected by N fertilization, but not by straw return, and the community variation could be well explained by soil available N and phosphorus concentrations. Additionally, 60%, 80%, and full N fertilization produced similar maize yields. Thus, our study revealed the response patterns of AMF to straw return and N fertilizer reduction and showed that straw return combined with N fertilizer reduction may be a promising practice to maintain mycorrhizal symbiosis concomitantly with crop productivity.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 351-360"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41366357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occurrence of dark septate endophytes in Phragmites australis in the Baiyang Lake and their resistance to Cd stress","authors":"Minghui XU ,&nbsp;Xia LI ,&nbsp;Qiannan YE ,&nbsp;Feng GONG ,&nbsp;Xueli HE","doi":"10.1016/j.pedsph.2023.07.009","DOIUrl":"10.1016/j.pedsph.2023.07.009","url":null,"abstract":"<div><p>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, <em>Phragmites australis</em>, a common remediation plant in the Baiyang Lake in North China, was investigated. Soils and roots of <em>P. australis</em> were collected in typical heavy metal-contaminated sites, and the species diversity and community structure of DSEs in <em>P. australis</em> 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 <em>P. australis</em> roots, forming typical dark septate hyphae, with a total colonization rate of 19.7%--83.1%. 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 <em>Poaceascoma helicoides</em>, <em>Alternaria doliconidium</em>, and <em>Acrocalymma vagum</em> 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.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 484-496"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42440748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arbuscular mycorrhizal fungi reduce ammonia emissions under different land-use types in agro-pastoral areas","authors":"Huaisong WANG ,&nbsp;Rui GUO ,&nbsp;Yibo TIAN ,&nbsp;Nan CUI ,&nbsp;Xinxin WANG ,&nbsp;Lei WANG ,&nbsp;Zhongbao YANG ,&nbsp;Shuying LI ,&nbsp;Jixun GUO ,&nbsp;Lianxuan SHI ,&nbsp;Tao ZHANG","doi":"10.1016/j.pedsph.2023.05.006","DOIUrl":"10.1016/j.pedsph.2023.05.006","url":null,"abstract":"<div><p>Ammonia (NH₃) emissions, the most important nitrogen (N) loss form, always induce a series of environmental problems such as increased frequency of regional haze pollution, accelerated N deposition, and N eutrophication. Arbuscular mycorrhizal (AM) fungi play key roles in N cycling. However, it is still unclear whether AM fungi can alleviate N losses by reducing NH₃ emissions. The potential mechanisms by which AM fungi reduce NH₃ emissions in five land-use types (grazed grassland, mowed grassland, fenced grassland, artificial alfalfa grassland, and cropland) were explored in this study. Results showed that AM fungal inoculation significantly reduced NH₃ emissions, and the mycorrhizal responses of NH₃ emissions were determined by land-use type. Structural equation modeling (SEM) showed that AM fungi and land-use type directly affected NH₃ emissions. In addition, the reduction in NH₃ emissions was largely driven by the decline in soil\u0000<span><math><mrow><msubsup><mrow><mtext>NH</mtext></mrow><mn>4</mn><mo>+</mo></msubsup></mrow></math></span>-N and pH and the increases in abundances of ammonia-oxidizing archaea (AOA) <em>amoA</em> and bacteria (AOB) <em>amoB</em> genes, urease activity, and plant N uptake induced by AM fungal inoculation and land-use type. The present results highlight that reducing the negative influence of agricultural intensification caused by land-use type changes on AM fungi should be considered to reduce N losses in agriculture and grassland ecosystems.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 497-507"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44712304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential of arbuscular mycorrhizal fungi for soil health: A review","authors":"Junling ZHANG ,&nbsp;Ruotong ZHAO ,&nbsp;Xia LI ,&nbsp;Jiangzhou ZHANG","doi":"10.1016/j.pedsph.2024.02.002","DOIUrl":"10.1016/j.pedsph.2024.02.002","url":null,"abstract":"<div><p>Soil health is an important component of “One Health”. Soils provide habitat to diverse and abundant organisms. Understanding microbial diversity and functions is essential for building healthy soils towards sustainable agriculture. Arbuscular mycorrhizal fungi (AMF) form potentially symbiotic associations with approximately 80% of land plant species that are well recognized for carbon flux and nutrient cycling. In addition to disentangling the signaling pathways and regulatory mechanisms between the two partners, recent advances in hyphosphere research highlight some emerging roles of AMF and associated microbes in the delivery of soil functions. This paper reviews the contribution of AMF to soil health in agroecosystems, with a major focus on recent progress in the contribution of hyphosphere microbiome to nutrient cycling, carbon sequestration, and soil aggregation. The hyphosphere microbiome and fungal stimulants open avenues for developing new fertilizer formulas to promote AMF benefits. In practice, developing AMF-friendly management strategies will have long-term positive effects on sustainable agriculture aiming at simultaneously providing food security, increasing resource use efficiency, and maintaining environment integrity.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 279-288"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139830995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intensive management enhances mycorrhizal respiration but decreases free-living microbial respiration by affecting microbial abundance and community structure in Moso bamboo forest soils","authors":"Wenhao JIN ,&nbsp;Jiangfei GE ,&nbsp;Shuai SHAO ,&nbsp;Liyuan PENG ,&nbsp;Jiajia XING ,&nbsp;Chenfei LIANG ,&nbsp;Junhui CHEN ,&nbsp;Qiufang XU ,&nbsp;Hua QIN","doi":"10.1016/j.pedsph.2022.10.002","DOIUrl":"10.1016/j.pedsph.2022.10.002","url":null,"abstract":"<div><p>Intensive management is known to markedly alter soil carbon (C) storage and turnover in Moso bamboo forests compared with extensive management. However, the effects of intensive management on soil respiration (R_S) components remain unclear. This study aimed to evaluate the changes in different R_S components (root, mycorrhizal, and free-living microorganism respiration) in Moso bamboo forests under extensive and intensive management practices. A 1-year <em>in</em>-<em>situ</em> microcosm experiment was conducted to quantify the R_S components in Moso bamboo forests under the two management practices using mesh screens of varying sizes. The results showed that the total R_S and its components exhibited similar seasonal variability between the two management practices. Compared with extensive management, intensive management significantly increased cumulative respiration from mycorrhizal fungi by 36.73%, while decreased cumulative respiration from free-living soil microorganisms by 8.97%. Moreover, the abundance of arbuscular mycorrhizal fungi (AMF) increased by 43.38%, but bacterial and fungal abundances decreased by 21.65% and 33.30%, respectively, under intensive management. Both management practices significantly changed the bacterial community composition, which could be mainly explained by soil pH and available potassium. Mycorrhizal fungi and intensive management affected the interrelationships between bacterial members. Structural equation modeling indicated that intensive management changed the cumulative R_S by elevating AMF abundance and lowering bacterial abundance. We concluded that intensive management reduced the microbial respiration-derived C loss, but increased mycorrhizal respiration-derived C loss.</p></div>","PeriodicalId":49709,"journal":{"name":"Pedosphere","volume":"34 2","pages":"Pages 508-519"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44536234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}