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Collembolans maintain a core microbiome responding to diverse soil ecosystems

Soil Ecology Letters 2024年第1期6卷 33-46页

作者： Zhe-Lun Liu Dong Zhu Yi-Fei Wang Yong-Guan Zhu Min Qiao State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China Key Lab of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China

The unique gut habitat led to a core intestinal micro-biome in diverse soil *** collembolan guts may help eliminate soil ***-selection carried more weight on community assembly of gut *** invertebrates are widely distributed in the ecosystem and are essential for soil ecological ***-brate gut microbiome plays an important role in host health and has been considered as a hidden microbial ***,little is known about how gut microbiome in soil invertebrates respond to diverse soil *** on a laboratory microcosm experiment,we characterized the assembling of microbiome of soil collembolans(Folsomia candida)from six representative regions of the soil ecosystem which they *** showed that collembolan gut microbial communities differed significantly from their surrounding soil microbial communities.A dominant core gut microbiome was identified in gut *** analyses indicated that deterministic process dominated in the community assembly of collembolan gut *** results further demonstrate a dominant contribution of host selection in shaping gut *** is also worthy to mention that pathogens,such as common agricultural phytopathogenic fungi Fusarium,were involved in core microbiome,indicating that collembolans could act as vectors of *** results unravelled the existence of gut core microbiome of collembolans in soil ecosystems and provided new insights for under-standing the crucial role of gut microbiome of soil fauna in maintaining microbial biodiversity and stability of soil ecosystems.

关键词： gut microbiome collembolan core microbiome community assembly

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Anaerobic biodegradation of trimethoprim with sulfate as an electron acceptor

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Frontiers of Environmental Science & Engineering 2019年第6期13卷 59-68页

作者： Bin Liang Deyong Kong Mengyuan Qi Hui Yun Zhiling Li Ke Shi E Chen Alisa SVangnai Aijie Wang Shenyang Academy of Environmental Sciences Shenyang 110167China Key Laboratory of Environmental Biotechnology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations School of Life ScienceLanzhou UniversityLanzhou 730000China The Environmental Monitoring Center of Gansu Province Lanzhou 730020China Department of Biochemistry Faculty of ScienceChulalongkorn UniversityBangkok 10330Thailand Center of Excellence on Hazardous Substance Management(HSM) Chulalongkorn UniversityBangkok 10330Thailand

Trimethoprim(TMP)is an antibiotic frequently detected in various *** are the main drivers of emerging antibiotic contaminant degradation in the ***,the feasibility and stability of the anaerobic biodegradation of TMP with sulfate as an electron acceptor remain poorly ***,TMP-degrading microbial consortia were successfully enriched from municipal activated sludge(AS)and river sediment(RS)as the initial *** acclimated consortia were capable of transforming TMP through demethylation,and the hydroxyl-substituted demethylated product(4-desmethyl-TMP)was further *** biodegradation ofTMP followed a 3-parameter sigmoid kinetic *** potential degraders(Acetobacterium,Desulfovibrio,Desulfbbulbus,and unidentified Peptococcaceae)and fermenters(Lentimicrobium and Petrimonas)were significantly enriched in the acclimated *** AS-and RS-acclimated TMP-degrading consortia had similar core *** anaerobic biodegradation ofTMP could be coupled with sulfate respiration,which gives new insights into the antibiotic fate in real environments and provides a new route for the bioremediation of antibiotic-contaminated environments.

关键词： Trimethoprim(TMP)biodegradation Demethylation Sulfate reduction core microbiome Antibiotic fate

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The rhizospheric microbiome becomes more diverse with maize domestication and genetic improvement

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Journal of Integrative Agriculture 2022年第4期21卷 1188-1202页

作者： HUANG Jun LI Yun-feng MA Yuan-ying LI Yan-sheng JIN Jian LIAN Teng-xiang Key Laboratory of Plant Molecular Breeding of Guangdong Province College of AgricultureSouth China Agricultural UniversityGuangzhou 510640P.R.China Centre for Mined Land Rehabilitation Sustainable Minerals InstituteThe University of QueenslandBrisbane Qld 4072Australia Key Laboratory of Mollisols Agroecology Northeast Institute of Geography and AgroecologyChinese Academy of SciencesHarbin 150081P.R.China Department of Animal Plant and Soil SciencesCentre for AgriBioscienceLa Trobe UniversityMelbourne CampusBundoora Vic 3086Australia

Domestication and genetic improvement of maize improve yield and stress tolerance due to changes in morphological and physiological properties, which likely alter rhizosphere microbial diversity. Understanding how the evolution of maize germplasm impacts its rhizobacterial traits during the growth stage is important for optimizing plant-microbe associations and obtaining yield gain in domesticated germplasms. In this study, a total of nine accessions representing domestication and subsequent genetic improvement were selected. We then sequenced the plant DNA and rhizobacterial DNA of teosinte, landraces and inbred lines at the seedling, flowering and maturity stages in a field trial. Moreover, the soil chemical properties were determined at the respective stages to explore the associations of soil characteristics with bacterial community structures. The results showed that domestication and genetic improvement increased the rhizobacterial diversity and substantially altered the rhizobacterial community composition. The core microbiome in the rhizosphere differed among germplasm groups. The co-occurrence network analysis demonstrated that the modularity in the bacterial network of the inbred lines was greater than those of teosinte and the landraces. In conclusion, the increased diversity of the rhizobacterial community with domestication and genetic improvement may improve maize resilience to biotic stresses and soil nutrient availability to plants.

关键词： teosinte landraces inbred lines domestication and improvement core microbiome network

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