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Regulatory functions and mechanisms of human microbiota in infectious diseases

hLife 2024年第10期2卷 496-513页

作者： Yingxu Fang Zehui Lei Lingqiang Zhang Cui Hua Liu Qiyao Chai CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijingChina Savaid Medical School University of Chinese Academy of SciencesBeijingChina State Key Laboratory of Medical Proteomics Beijing Proteome Research CenterNational Center for Protein Sciences(Beijing)Beijing Institute of LifeomicsBeijingChina

The human microbiota,a diverse community of microorganisms living on or within their hosts,play an irreplaceable role in maintaining human *** of the microbiota is associated with the pathogenesis of diverse human *** recent years,growing evidence has been presented to support the substantial effect of human microbiota on the progression of infectious *** this review,we describe the functional role of human microbiota in infec-tious diseases by highlighting their Janus-faced effects in the regulation of acute and chronic infections as well as their related ***,we review the latest advances elucidating the mechanisms underlying tri-directional interactions between the microbiota,hosts,and invading pathogens,with a further discussion on external environ-mental factors that shape this interconnected regulatory network.A better understanding of the regulatory functions and mechanisms of human microbiota in infectious diseases will facilitate the development of new diagnostic,preven-tive,and therapeutic approaches for infectious diseases.

关键词： human microbiota infectious diseases co-morbidities microbiota-host-pathogen interactions environ-mental factors

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Water, CO_2 and Energy Exchange at Vegetation-air Interface

引用

Agricultural Science & Technology 2012年第9期13卷 1908-1914页

作者：肖丽哈尔滨商业大学外语学院黑龙江哈尔滨150028

[Objective] The aim was to analyze water and heat fluxes, CO2 fluxes and energy balance in wheat ecosystem in Luancheng County of Hebei Province. [Method] Based on data of water and heat flux, and CO2 fluxes, routine meteorological and biomass data in Luancheng in 2008, water and heat fluxes, CO2 fluxes and energy balance in wheat ecosystem were explored. [Result] The results showed that latent and sensible heat and CO2 fluxes were of obvious daily and seasonal changes; latent and sensible heat fluxes shaped an inverted U in daily change, and CO2 fluxes were of a U-shape; daily flux peak differed significantly. Furthermore, the change of latent heat, sensible heat and CO2 fluxes were closely related to environ- mental factors. Detailedly, the three were sensitive to light intensity and net radiation, and correlation coefficients were 0.92, 0.66, 0.65 and 0.90, 0.69, 0.74, respectively. Besides, the fluxes, sensitive to temperature, proved better in sunny day, especially for latent flux which is more sensitive to water in soils after precipitation. In addition, closure degree of energy balance in wheat fields was 0.91 and non-closure, caused by measurement error and neglection of heat storage, was observed, too. What＇s more. closure degree differed in months and time periods within a day. [Conclusion] The research concluded water and heat fluxes, CO2 fluxes, transport mechanisms and concerning factors, providing scientific reference for revealing mechanism of evapo- ration and heat dissipation of canopy, relationship between photosynthesis and water use efficiencyand energy distribution mechanism.

关键词： Latent heat flux Sensible heat flux CO2 flux Energy balance environ-mental factors

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