scholarly journals Evaluation of Extracellular Organic Matter from Micrococcus luteus Effects on Hydrocarbon-Degrading Bacterial Communities

2020 ◽  
Author(s):  
Naila Bounedjoum Bounedjoum ◽  
Attila Bodor ◽  
György Erik Vincze ◽  
Krisztián Laczi ◽  
Katalin Perei ◽  
...  
Keyword(s):  
Organic Matter ◽  
Bacterial Communities ◽  
Micrococcus Luteus ◽  
Extracellular Organic Matter

scholarly journals Extracellular Organic Matter from Micrococcus luteus Enhances the Bioconversion of Used Lubricants in Polluted Soil

2020 ◽  
Author(s):  
Attila Bodor ◽  
Péter Petrovszki ◽  
György Erik Vincze ◽  
Naila Bounedjoum ◽  
Krisztián Laczi ◽  
...  
Keyword(s):  
Organic Matter ◽  
Micrococcus Luteus ◽  
Polluted Soil ◽  
Extracellular Organic Matter

Nitrogen Availability and the Nature of Extracellular Organic Matter of Microalgae

2020 ◽  
Vol 59 (15) ◽  
pp. 6795-6805 ◽  
Author(s):  
Érico Baroni ◽  
Bingdi Cao ◽  
Paul A. Webley ◽  
Peter J. Scales ◽  
Gregory J. O. Martin
Keyword(s):  
Organic Matter ◽  
Nitrogen Availability ◽  
Extracellular Organic Matter

scholarly journals Genome Sequences and Metagenome-Assembled Genome Sequences of Microbial Communities Enriched on Phytoplankton Exometabolites

2020 ◽  
Vol 9 (30) ◽  
Author(s):  
He Fu ◽  
Christa B. Smith ◽  
Shalabh Sharma ◽  
Mary Ann Moran
Keyword(s):  
Organic Matter ◽  
Microbial Communities ◽  
Marine Bacteria ◽  
Bacterial Communities ◽  
Draft Genome ◽  
Marine Phytoplankton ◽  
Genome Sequences ◽  
Phytoplankton Cells

ABSTRACT We report 11 bacterial draft genome sequences and 38 metagenome-assembled genomes (MAGs) from marine phytoplankton exometabolite enrichments. The genomes and MAGs represent marine bacteria adapted to the metabolite environment of phycospheres, organic matter-rich regions surrounding phytoplankton cells, and are useful for exploring functional and taxonomic attributes of phytoplankton-associated bacterial communities.

scholarly journals Fast response of fungal and prokaryotic communities to climate change manipulation in two contrasting tundra soils

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Jana Voříšková ◽  
Bo Elberling ◽  
Anders Priemé
Keyword(s):  
Organic Matter ◽  
Seasonal Variation ◽  
Snow Cover ◽  
Bacterial Communities ◽  
Winter Precipitation ◽  
Fungal Communities ◽  
Tundra Soils ◽  
Short Term ◽  
Fungal Community Composition ◽  
Climate Manipulation

Abstract Background Climate models predict substantial changes in temperature and precipitation patterns across Arctic regions, including increased winter precipitation as snow in the near future. Soil microorganisms are considered key players in organic matter decomposition and regulation of biogeochemical cycles. However, current knowledge regarding their response to future climate changes is limited. Here, we explore the short-term effect of increased snow cover on soil fungal, bacterial and archaeal communities in two tundra sites with contrasting water regimes in Greenland. In order to assess seasonal variation of microbial communities, we collected soil samples four times during the plant-growing season. Results The analysis revealed that soil microbial communities from two tundra sites differed from each other due to contrasting soil chemical properties. Fungal communities showed higher richness at the dry site whereas richness of prokaryotes was higher at the wet tundra site. We demonstrated that fungal and bacterial communities at both sites were significantly affected by short-term increased snow cover manipulation. Our results showed that fungal community composition was more affected by deeper snow cover compared to prokaryotes. The fungal communities showed changes in both taxonomic and ecological groups in response to climate manipulation. However, the changes were not pronounced at all sampling times which points to the need of multiple sampling in ecosystems where environmental factors show seasonal variation. Further, we showed that effects of increased snow cover were manifested after snow had melted. Conclusions We demonstrated rapid response of soil fungal and bacterial communities to short-term climate manipulation simulating increased winter precipitation at two tundra sites. In particular, we provide evidence that fungal community composition was more affected by increased snow cover compared to prokaryotes indicating fast adaptability to changing environmental conditions. Since fungi are considered the main decomposers of complex organic matter in terrestrial ecosystems, the stronger response of fungal communities may have implications for organic matter turnover in tundra soils under future climate.

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