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Pathogen profile of Baiyangdian Lake sediments using metagenomic analysis and their correlation with environmental factors.
Xiao, Rong; Hu, Yanping; Wang, Yaping; Li, Junming; Guo, Congling; Bai, Junhong; Zhang, Ling; Zhang, Kegang; Jorquera, Milko A; Acuña, Jacquelinne J; Pan, Wenbin.
Afiliación
  • Xiao R; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China. Electronic address: laorong-20@163.com.
  • Hu Y; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China.
  • Wang Y; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China.
  • Li J; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China.
  • Guo C; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China.
  • Bai J; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
  • Zhang L; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
  • Zhang K; Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China.
  • Jorquera MA; Department of Chemical Sciences and Natural Resources, University of La Frontera, Temuco 01145, Chile.
  • Acuña JJ; Department of Chemical Sciences and Natural Resources, University of La Frontera, Temuco 01145, Chile.
  • Pan W; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China.
Sci Total Environ ; 913: 169628, 2024 Feb 25.
Article en En | MEDLINE | ID: mdl-38159771
ABSTRACT
Increasing concerns about public health and safety after covid-19 have raised pathogen studies, especially in aquatic environments. However, the extent to how different location and human activities affect geographic occurrence and distribution of pathogens in response to agricultural pollution, boat tourism disturbances and municipal wastewater inflow in a degraded lake remains unclear. Since the surrounding residents depend on the lake for their livelihood, understanding the pathogens reserved in lake sediment and the regulation possibility by environmental factors are challenges with far-reaching significance. Results showed that 187 pathogens were concurrently shared by the nine sediment samples, with Salmonella enterica and Pseudomonas aeruginosa being the most abundant. The similar composition of the pathogens suggests that lake sediment may act as reservoirs of generalist pathogens which may pose infection risk to a wide range of host species. Of the four virulence factors (VFs) types analyzed, offensive VFs were dominant (>46 % on average) in all samples, with dominant subtypes including adherence, secretion systems and toxins. Notably, the lake sediments under the impact of agricultural use (g1) showed significantly higher diversity and abundance of pathogen species and VFs than those under the impact of boat tourism (g2) and/or municipal wastewater inflow with reed marshes filtration (g3). From the co-occurrence networks, pathogens and pesticides, aggregate fractions, EC, pH, phosphatase have strong correlations. Strong positive correlations between pathogens and diazinon in g1 and ppDDT in g2 and g3 suggest higher pesticide-pathogen co-exposure risk. These findings highlight the need to explore pathogen - environmental factor interaction mechanisms in the human-impacted water environments where the control of pathogen invasion by environmental factors may accessible.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plaguicidas / Contaminantes Químicos del Agua Límite: Humans País/Región como asunto: Asia Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plaguicidas / Contaminantes Químicos del Agua Límite: Humans País/Región como asunto: Asia Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos