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Title: The structural difference of bacterial communities between anthropic and natural lakes
Authors: Radulescu, Dragos 
Vaideanu, Monica 
Banciu, Alina 
Stoica, Catalina 
Nita-Lazar, Mihai 
Affiliations: National Research and Development Institute for Industrial Ecology, ECOIND 
Keywords: Bacteria;Freshwater ecosystems;Antibiotic resistant bacteria;DNA
Issue Date: Oct-2020
Publisher: National Research and Development Institute for Industrial Ecology, INCD-ECOIND
The hydrosphere represents about 71% of the total surface of the planet of which only 2.8% is represented by freshwater ecosystems. The ecosystem maintains a state of balance between the component populations, throughout its self-control function, maintaining the numerical variations of these populations within certain limits of sustainability. The exceeding of these limits could cause the balance disturbance by changing the structure and functioning of the ecosystem. The complex human activities influence the structure and functioning of ecosystems, transforming the environment and adapting it to its purposes. Microorganisms are present in all types of ecosystems, being endogenous, exogenous or transient due to contamination with
various sources of pollution. Water is an essential natural factor of ecological balance increasingly exposed to microbial pollution. Indicators of fecal pollution are used to assess the degree of water contamination and to locate its origin. The continuous and uncontrolled usage of antibacterial agents that contributed to bacterial resistance determined/ caused pollution of aquatic ecosystems with antibiotic resistant microorganisms. The emergence of antibiotic resistant bacteria is predictable in any environment given that the use of antibacterial substances is constantly growing worldwide. Thus, antibiotic resistance induced in the aquatic environment can have an effect both on bacterial populations in the ecosystem and on human health. Aquatic environments are recognized as one of the reservoirs for the transmission and dissemination of antibiotic resistance. The main goal of this paper is to highlight the differences of bacterial communities from anthropogenic and natural aquatic ecosystems and to assess the potential impact they have on the environment and human health.
Book of Abstracts, 23rd International Symposium The Environment and the Industry, E-SIMI 2020, 24-25 September 2020, pp. 71-72
Appears in Collections:SIMI 2020

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