Microbial Communities Along 2,3,7,8-tetrachlorodibenzodioxin Concentration Gradient in Soils Polluted with Agent Orange Based on Metagenomic Analyses

2022 ◽  
Author(s):  
Huyen-Trang Tran ◽  
Hung-Minh Nguyen ◽  
Thi-Minh-Hue Nguyen ◽  
Chieh Chang ◽  
Wei-Ling Huang ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Concentration Gradient ◽  
Agent Orange

Response of soil microbial communities to roxarsone pollution along a concentration gradient

2017 ◽  
Vol 52 (9) ◽  
pp. 819-827 ◽  
Author(s):  
Yaci Liu ◽  
Zhaoji Zhang ◽  
Yasong Li ◽  
Yi Wen ◽  
Yuhong Fei
Keyword(s):  
Microbial Communities ◽  
Concentration Gradient ◽  
Soil Microbial Communities ◽  
Soil Microbial

scholarly journals Dynamic Interception Effect of Internal and External Nitrogen and Phosphorus Migration of Ecological Ditches

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2553
Author(s):  
Yuyang Liu ◽  
Songmin Li ◽  
Xiaoling Wang ◽  
Yuchen An ◽  
Ruonan Wang
Keyword(s):  
Microbial Communities ◽  
Concentration Gradient ◽  
Interstitial Water ◽  
Nitrogen And Phosphorus ◽  
Overlying Water ◽  
Absorption Function ◽  
Effective Measure ◽  
Ammonium N ◽  
The Matrix ◽  
Bottom Mud

The “ecological ditch” (eco-ditch) is an effective measure used to alleviate agricultural non-point-source pollution. However, information is lacking about the continuous transport characteristics of internal and external nitrogen and phosphorus in the interstitial water of the bottom mud of these ditches and overlying water under dynamic continuous inflow conditions. Understanding of the effect of matrix dams and microbial communities inside eco-ditches on the continuous transport characteristics of the N and P therein needs to be improved. To determine the interception effects of eco-ditches on the transfer of endogenous and exogenous N and P, an eco-ditch combining plants and a matrix dam was built to explore the transport distribution characteristics of N and P in the intermittent water and overlying water in the bottom of the eco-ditch and in the bottom of the soil ditch. We compared and analyzed the composition characteristics of the microbiological communities along the ecological and soil ditches. The research results showed that: (1) The concentration gradient between the interstitial water and the overlying water in the soil ditch is the main reason for the transport and diffusion of pollutants. However, in eco-ditches, the absorption function of plant roots and the differences between the structures of the microbial communities destroy the correlation of this concentration gradient diffusion, especially the effect on ammonium N; (2) a large number of mycelia adhere to the surface of the matrix dam in an eco-ditch, and are conducive to the adsorption and purification of pollutants in the water; (3) Proteobacteria, Chloroflexi, Actinomycetes, and Acidobacteria were the main bacterial groups in the ditches. The aquatic plants in the eco-ditch changed the microenvironment of the sediment, and both the microbial diversity and abundance along the eco-ditch were higher than in the soil ditch.

A peek in the micro-sized world: a review of design principles, engineering tools, and applications of engineered microbial community

2020 ◽  
Vol 48 (2) ◽  
pp. 399-409
Author(s):  
Baizhen Gao ◽  
Rushant Sabnis ◽  
Tommaso Costantini ◽  
Robert Jinkerson ◽  
Qing Sun
Keyword(s):  
Microbial Community ◽  
Microbial Communities ◽  
Environmental Remediation ◽  
Real Life ◽  
Design Principles ◽  
Microbial Interactions ◽  
Potential Applications ◽  
New Gene ◽  
Global Biogeochemical Cycles ◽  
Synthetic Microbial Communities

Microbial communities drive diverse processes that impact nearly everything on this planet, from global biogeochemical cycles to human health. Harnessing the power of these microorganisms could provide solutions to many of the challenges that face society. However, naturally occurring microbial communities are not optimized for anthropogenic use. An emerging area of research is focusing on engineering synthetic microbial communities to carry out predefined functions. Microbial community engineers are applying design principles like top-down and bottom-up approaches to create synthetic microbial communities having a myriad of real-life applications in health care, disease prevention, and environmental remediation. Multiple genetic engineering tools and delivery approaches can be used to ‘knock-in' new gene functions into microbial communities. A systematic study of the microbial interactions, community assembling principles, and engineering tools are necessary for us to understand the microbial community and to better utilize them. Continued analysis and effort are required to further the current and potential applications of synthetic microbial communities.

T-RFLP – a representative tool to study pulmonary microbial communities

Pneumologie ◽  
2009 ◽  
Vol 63 (S 01) ◽  
Author(s):  
T Zakharkina ◽  
C Herr ◽  
A Yildirim ◽  
M Friedrich ◽  
R Bals
Keyword(s):  
Microbial Communities

Screening bioactive secondary metabolites from Costa Rican enviromental microbial communities

Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
JJ Araya ◽  
M Chavarría ◽  
A Pinto-Tomás ◽  
C Murillo ◽  
L Uribe ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Microbial Communities ◽  
Costa Rican ◽  
Bioactive Secondary Metabolites

Enhanced CO2 concentrations change the structure of Antarctic marine microbial communities

2016 ◽  
Vol 552 ◽  
pp. 93-113 ◽  
Author(s):  
AT Davidson ◽  
J McKinlay ◽  
K Westwood ◽  
PG Thomson ◽  
R van den Enden ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Co2 Concentrations ◽  
Antarctic Marine ◽  
Marine Microbial Communities
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