Effects of heat shocks on microbial community structure and microbial activity of a methanogenic enrichment degrading benzoate

2016 ◽  
Vol 63 (5) ◽  
pp. 356-362 ◽  
Author(s):  
R. Mei ◽  
T. Narihiro ◽  
M.K. Nobu ◽  
W.-T. Liu
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Activity ◽  
Microbial Community Structure ◽  
Heat Shocks

scholarly journals Relationship between microbial activity and microbial community structure in six full-scale anaerobic digesters

2012 ◽  
Vol 167 (10) ◽  
pp. 581-589 ◽  
Author(s):  
Leticia Regueiro ◽  
Patricia Veiga ◽  
Mónica Figueroa ◽  
Jorge Alonso-Gutierrez ◽  
Alfons J.M. Stams ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Activity ◽  
Microbial Community Structure ◽  
Full Scale ◽  
Anaerobic Digesters

Increased microbial activity and nitrogen mineralization coupled to changes in microbial community structure in the rhizosphere of Bt corn

2013 ◽  
Vol 68 ◽  
pp. 46-56 ◽  
Author(s):  
A. García-Villaraco Velasco ◽  
G.A. Kowalchuk ◽  
F.J. Gutierrez Mañero ◽  
B. Ramos ◽  
E. Yergeau ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Activity ◽  
Nitrogen Mineralization ◽  
Microbial Community Structure ◽  
Bt Corn

Laboratory- and field-based investigation on macrofaunal control of microbial community structure and activity in intertidal sediment

2020 ◽  
Author(s):  
Longhui Deng ◽  
Annika Fiskal ◽  
Damian Bölsterli ◽  
Mark Lever
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Activity ◽  
Microbial Community Structure ◽  
Amplicon Sequencing ◽  
Intertidal Sediment ◽  
Reverse Transcription Pcr ◽  
Metabolic Versatility ◽  
Structure And Activity

<p>Benthic macrofauna occupy most of the oxygenated seafloor, where they have a strong influence on microbial activity and are major regulators of carbon and other elemental cycles. To explore the yet-elusive relationships between faunal sediment alteration (bioturbation), microbial community structure, and microbial activity, we conducted aquarium incubations of Abarenicola pacifica and Nereis vexillosa in a seawater flow system and field manipulation experiments in a sandy intertidal zone. Microsensor and geochemical profiling show strong impacts of both worms on the pore-water concentrations of electron acceptors (O<sub>2</sub>, NO<sub>3</sub><sup>-</sup>, and SO<sub>4</sub><sup>-</sup>) and metabolites (NH<sub>4</sub><sup>+</sup>, HS<sup>-</sup>, and Fe<sub>2</sub><sup>+</sup>), and suggest the distinctly different advective and diffusive type of bioirrigations generated by A. pacifica and N. vexillosa, respectively, in sediment. Comprehensive analyses on microbial community structure and activity using amplicon sequencing and quantitative-(Reverse Transcription)-PCR of 16S rRNA and functional genes suggest that the metabolically active microbial community structure in intertidal sandy sediments is highly resilient to macrofaunal disturbance. This resilience likely stems from metabolic versatility that enables dominant microorganisms to switch between (micro)aerobic and anaerobic lifestyles under the fluctuating redox conditions in these environments. Significant changes of microbial community structure were only locally observed in the fecal pellet and feeding funnel of A. pacifica and mucus of N. vexillosa, likely due to the distinct organic matter composition and/or higher exposure time to oxygen in these microenvironments. Results from the field-based manipulation experiments further suggest that, in addition to macrofaunal bioturbation, conditions of temperature, tidal movement, and supply of photosynthetic organic matter also play important roles in controlling microbial activity and community structure in intertidal sediment.</p>

The effect of glyphosate on soil microbial activity, microbial community structure, and soil potassium

Pedobiologia ◽  
2012 ◽  
Vol 55 (6) ◽  
pp. 335-342 ◽  
Author(s):  
Matthew Lane ◽  
Nicola Lorenz ◽  
Jyotisna Saxena ◽  
Cliff Ramsier ◽  
Richard P. Dick
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Activity ◽  
Microbial Community Structure ◽  
Soil Microbial Activity ◽  
Soil Microbial ◽  
Soil Potassium

The First Use of Biofilm Microbial Community Structure as an Indicator of Impact of Two Dams on the Elwha River (Washington)

2009 ◽  
Vol 27 (4) ◽  
pp. 385-387
Author(s):  
W. D. Eaton ◽  
B. Wilmot ◽  
E. Epler ◽  
S. Mangiamelli ◽  
D. Barry
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Elwha River
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