Search results for "prokaryotic community"

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Prokaryotic assemblages within permafrost active layer at Edmonson Point (Northern Victoria Land, Antarctica)

2018

This study was aimed at gaining insights on the prokaryotic community (in terms of both taxonomic composition and activities) inhabiting the active layer at Edmonson Point, an ice-free area on the eastern slope at the foot of Mount Melbourne (Northern Victoria Land, Antarctica). Samples were collected during the thawing period, when microbial physiological activities are restored to utilize previously frozen organic substrates. Despite the very small cell sizes (600 daltons) substrates, as indicated also by the obtained rates of enzymatic hydrolytic activities over proteolytic, glycolitic and phosphoric compounds. Taxonomical composition showed that Proteobacteria, Actinobacteria and Firmic…

0301 basic medicinemetabolic activitiesFirmicutesta1172seasonally thawed active layerSoil ScienceikiroutaAntarctica; Metabolic activities; Prokaryotic community; Seasonally thawed active layer; Microbiology; Soil SciencePermafrostMicrobiologyActinobacteria03 medical and health sciencesAbundance (ecology)Organic mattermikrobitaineenvaihduntaNitrogen cycleAntarctica Metabolic activities Prokaryotic community Seasonally thawed active layer Microbiology Soil Sciencechemistry.chemical_classificationbiologyEcologyta1183prokaryotic communitybiology.organism_classificationmikrobisto030104 developmental biologychemistryHabitatEnvironmental scienceAntarcticaantarktinen alueProteobacteria
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Initial pH Conditions Shape the Microbial Community Structure of Sewage Sludge in Batch Fermentations for the Improvement of Volatile Fatty Acid Prod…

2022

Conversion of wastewater treatment plants into biorefineries is a sustainable alternative for obtaining valuable compounds, thus reducing pollutants and costs and protecting the environment and human health. Under specific operating conditions, microbial fermentative products of sewage sludge are volatile fatty acids (VFA) that can be precursors of polyhydroxyalkanoate thermoplastic polyesters. The role of various operating parameters in VFA production has yet to be elucidated. This study aimed to correlate the levels of VFA yields with prokaryotic microbiota structures of sewage sludge in two sets of batch fermentations with an initial pH of 8 and 10. The sewage sludge used to inoculate th…

microbiota structureMicrobiology (medical)pH influencesewage sludgeVirologyprokaryotic communityvolatile fatty acid production; sewage sludge; microbiota structure; pH influence; prokaryotic communityvolatile fatty acid productionMicrobiologyMicroorganisms; Volume 10; Issue 10; Pages: 2073
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