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Grazing increases the complexity of networks and ecological stochastic processes of mycorrhizal fungi.
J Environ Manage
December 2024
Department of Grassland Science, College of Grassland Science & Technology, Sichuan Agricultural University, No.211 Huimin Road, Wenjiang District, Chengdu, 611130, China.
Arbuscular mycorrhizal fungi (AMF) form extensive symbiotic relationships with plants, which are critical for plant-driven biogeochemical cycles and ecosystem functions. Grazing and mowing, which are common grassland utilization patterns globally, significantly alter plant community characteristics as well as soil nutrients and structure, thereby potentially influencing AMF communities. However, the effects of these grassland managements on AMF community structure and ecological processes remain unclear.
View Article and Find Full Text PDFGreat diverse rhizobial community nodulating in the northeastern region of China.
Front Microbiol
December 2024
College of Life Science and Food Engineering, Inner Mongolia Minzu University, Tongliao, China.
Introduction: Bunge is an important medicinal legume species widely cultivated in northeastern China (NEC) and northwestern China (NWC) and can establish a symbiotic relationship with nitrogen-fixing rhizobial strains. However, there are limited reports comparing the genetic diversity, differentiation, and gene flow of rhizobial strains associated with this plant in different geographic regions.
Methods: We used multilocus sequence analysis (MLSA) to investigate the phylogeny and genetic diversity of rhizobia and to estimate their intra- and inter-regional gene flow and genetic differentiation based on the analysis of concatenated core genes (, , and ) and the critical symbiotic gene .
A novel open-source cultivation system helps establish the first full cycle chemosynthetic symbiosis model system involving the giant ciliate .
Front Microbiol
December 2024
Department of Molecular, Cellular, and Developmental Biology, University of California, Santa Barbara, Santa Barbara, CA, United States.
Symbiotic interactions drive species evolution, with nutritional symbioses playing vital roles across ecosystems. Chemosynthetic symbioses are globally distributed and ecologically significant, yet the lack of model systems has hindered research progress. The giant ciliate and its sulfur-oxidizing symbionts represent the only known chemosynthetic symbiosis with a short life span that has been transiently cultivated in the laboratory.
View Article and Find Full Text PDFEffects of Artificially Modified Microbial Communities on the Root Growth and Development of Tall Fescue in Nutrient-Poor Rubble Soil.
Plants (Basel)
November 2024
Xinjiang Uygur Autonomous Region Geology and Mineral Exploration and Development Bureau, Urumqi 830052, China.
The granite rubble soil produced through excavation during construction is nutrient-poor and has a simplified microbial community, making it difficult for plants to grow and increasing the challenges of ecological restoration. Recent studies have demonstrated that microbial inoculants significantly promote plant growth and are considered a potential factor influencing root development. Microorganisms influence root development either directly or indirectly, forming beneficial symbiotic relationships with plant roots.
View Article and Find Full Text PDFThe Spatial Dynamics of Diazotrophs in the Forefield of Three Tibetan Glaciers.
Microb Ecol
November 2024
Center for Pan-Third Pole Environment, Lanzhou University, No.222, Tianshui South Road, Chengguan District, Lanzhou, Gansu Province, China.
Nitrogen is often a limiting nutrient for microbial communities and plants in glacier forefields. Nitrogen-fixing microorganisms (diazotrophs) play an important role in providing bioavailable nitrogen, with their composition determining the nitrogen-fixating capacities. This study investigates the spatial and temporal dynamics of diazotrophs in the forefields of three Tibetan glaciers: Qiangyong, Kuoqionggangri, and Longxiazailongba.
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