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Permafrost environments, which store large quantities of soil organic carbon, are threatened by climate change-induced thaw that would render frozen organic matter bioavailable for microorganisms leading to an increase in greenhouse gases emissions. Hence understanding the response of permafrost microbial communities to thawing is necessary to evaluate the permafrost carbon feedback to global change. Microbial diversity and activity were studied across two thaw stages (intact and degrading permafrost) at different depths in a palsa found in Northern Norway. This study investigated soil microbial community composition by Illumina Miseq sequencing of the 16S rRNA gene while bacterial, archaeal, methanogens and methanotrophs abundance was assessed by qPCR. Microbial heterotrophic activity was evaluated using enzymatic and functional metabolic assays. Microbial communities’ composition and activity were found to differ between the two thaw stages. The intact palsa (IP) presented high richness that decreased with depth while the degrading palsa (DP) exhibited less species-rich communities across depth. Relative abundance of members of the phylum Proteobacteria known to thrive in higher carbon and nutrient availability increased in the DP while members of the phylum AD3, which dominated the deepest part of the IP, almost disappeared in the DP. Bacterial, archaeal, methanogens and methanotrophs were more abundant in the thawing permafrost than in the intact palsa. The DP exhibited high and similar microbial biomass across depths while the IP showed high microbial abundance only in the topsoil layer. In addition, populations of methane-producing microorganisms were found to be strongly positively correlated to methane oxidizers abundance, suggesting a close spatial relationship between these two communities. Heterotrophic prokaryotes found in the DP displayed higher enzymatic and functional metabolic activity across depth than in the IP. Collectively, these results suggest a shift in microbial prokaryotic communities as a result of permafrost thaw characterized by less species-rich populations, by an increasing biomass of greenhouse gases-related microorganisms as well as a higher microbial activity across depth, potentially leading to greater greenhouse gases emissions that would exacerbate the positive feedbacks from permafrost carbon to climate.
permafrost thaw --- microbial diversity --- microbial activity --- palsa --- 16s rRNA --- qPCR --- mcrA --- pmoA --- Biolog --- beta-glucosidase --- climate change --- Norway --- Sciences du vivant > Microbiologie
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'Letters in Applied Microbiology' (LAM) provides for the rapid publication of short, high quality papers in the broad field of applied microbiology, with particular interests in antimicrobials (antibiotics, biocides, natural products, probiotics), rapid diagnosis, bioinformatics, microbial genetics, medical, pharmaceutical and veterinary microbiology. Water, biodegradation and biodeterioration, and microbe-plant interactions are also regular features.
Microbiology --- Microbiology. --- Microbiologie --- Toegepaste microbiologie. --- Microbiologie. --- Biotechnologie. --- Microbial biology --- Infectious Disease Medicine --- Biology --- Microorganisms --- Biological Sciences --- air microbiology --- bacteriology --- industrial microbiology --- microbial activity --- microbial contamination --- microbial load --- microbial physiology --- microorganisms --- predictive microbiology --- virology --- water microbiology --- food microbiology --- food safety --- mycology --- plate count
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Medical microbiology --- Microbiology. --- Microbiology --- Microbiologie --- Protozoologie --- Medical microbiology. --- Microbiologie. --- Medische aspecten. --- Clinical microbiology --- Medical sciences --- Pathogenic microorganisms --- Infectious Disease Medicine --- Periodicals. --- microbiology. --- Biological Sciences --- air microbiology --- bacteriology --- industrial microbiology --- microbial activity --- microbial contamination --- microbial load --- microbial physiology --- microorganisms --- predictive microbiology --- virology --- water microbiology --- food microbiology --- food safety --- mycology --- plate count --- Protozoology --- Microbiologie médicale --- Protozoa --- Zoology --- Microbial biology --- Biology --- Microorganisms --- Protozoology.
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Esoteric sciences --- Agriculture Sciences --- Life Sciences --- Soil Chemistry, Microbiology, Fertility & Fertilizers --- Micro and Molecular Biology --- Microbial biology --- Microbiologie --- Microbiology --- periodicals --- Periodicals --- Périodiques --- EJMEDEC ELSEVIER-E EPUB-ALPHA-A EPUB-PER-FT MDMICROB --- periodicals. --- Microbiology. --- Biology --- Microorganisms --- Infectious Disease Medicine --- microbiology. --- Biological Sciences --- air microbiology --- bacteriology --- industrial microbiology --- microbial activity --- microbial contamination --- microbial load --- microbial physiology --- microorganisms --- predictive microbiology --- virology --- water microbiology --- food microbiology --- food safety --- mycology --- plate count --- Microbiology - periodicals
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"A combined primary and abstract journal covering the fields of biodeterioration and biodegradation-biotechnology."
Biodegradation --- Bioremediation --- Biodegradation, Environmental --- Sanitation --- Technology --- Arts, Industrial --- Industrial Arts --- Natural Attenuation, Pollution --- Phytoremediation --- Environmental Biodegradation --- Pollution Natural Attenuation --- Environmental biotechnology --- Biocorrosion --- Biodecay --- Biodecomposition --- Biodeterioration --- Biological corrosion --- Biological decay --- Biological decomposition --- Biological degradation --- Decay, Biological --- Decomposition (Biology) --- Degradation, Biological --- Cloud Computing --- Pollution --- Biochemistry --- Decomposition (Chemistry) --- Microbiology --- biological degradation --- microbial degradation --- biogeochemical cycles --- degradation --- humification --- bio-packaging --- biodegradable products --- bioremediation --- microbial activity --- white-rot fungi --- Biodegradation, Environmental. --- Sanitation.
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General microbiology --- Bacteriology --- Bactériologie --- Periodicals --- Périodiques --- Microbiology --- Microbiology. --- Serology. --- Microbiologie --- Bacteriology. --- #ANTIL9606 --- 579 --- 57 --- Infectious Disease Medicine --- Biological sciences in general --- Biochemistry --- Chemistry --- Ecosystems & Ecology --- General and Others --- Optics & Opto Electronics --- Allergy and Immunology --- Environmental Sciences --- Life Sciences --- Physics --- Agriculture Sciences --- Soil Chemistry, Microbiology, Fertility & Fertilizers --- Chemistry. --- Optics & Opto Electronics. --- Environmental Sciences. --- Life Sciences. --- Physics. --- 579 Microbiology --- Bactériologie --- Périodiques --- EJBIOMO EJMEDEC EPUB-ALPHA-A EPUB-PER-FT MDMICROB SPRINGER-E --- Microbial biology --- Serology --- Biology --- Microorganisms --- Journal --- microbiology. --- immunology. --- serology. --- immunology --- antibodies --- antibody specificity --- antigen-antibody reactions --- antigen detection --- antigens --- biochemistry --- blood serum --- immunochemistry --- immunologic techniques --- serodiagnosis --- serological surveys --- seroprevalence --- serotypes --- Biological Sciences --- immunity --- immunogenetics --- immunoinformatics --- immunologic factors --- immunophenotype --- serology --- human health and safety --- immune system --- medical sciences --- air microbiology --- bacteriology --- industrial microbiology --- microbial activity --- microbial contamination --- microbial load --- microbial physiology --- microorganisms --- predictive microbiology --- virology --- water microbiology --- food microbiology --- food safety --- mycology --- plate count --- Microbiologie. --- Sérologie. --- Diagnostic microbiology --- Hematology --- Immunology
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General microbiology --- Microbiology --- Microbiologie --- Periodicals --- Périodiques --- periodicals --- Microbiology. --- Microbiologie. --- Mikrobiologie. --- Zeitschrift. --- Online-Publikation. --- 57 --- 579 --- Infectious Disease Medicine --- Biological sciences in general --- Agriculture Sciences --- Chemistry --- Engineering --- Health Sciences --- Life Sciences --- Soil Chemistry, Microbiology, Fertility & Fertilizers --- Biochemistry --- Toxicology --- Biotechnology --- Genetics --- Immunology --- General and Others --- 579 Microbiology --- Périodiques --- EJMEDEC EPUB-ALPHA-M EPUB-PER-FT MDMICROB SOCGENMIC-E --- periodicals. --- Mikrobiologie --- Zeitschrift --- Online-Ressource --- Netzpublikation --- Online-Publikation --- Computerdatei im Fernzugriff --- Online-Dokument --- On-line-Dokument --- On-line-Publikation --- Elektronische Publikation --- Periodikum --- Zeitschriften --- Presse --- Fortlaufendes Sammelwerk --- Biologie --- Microbial biology --- Biology --- Microorganisms --- mikrobiológia --- periodika --- tanszéki --- Journal --- microbiology. --- Biological Sciences --- air microbiology --- bacteriology --- industrial microbiology --- microbial activity --- microbial contamination --- microbial load --- microbial physiology --- microorganisms --- predictive microbiology --- virology --- water microbiology --- food microbiology --- food safety --- mycology --- plate count --- Microbiology - Periodicals --- Microbiology - periodicals
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Natural compounds, from terrestrial and marine sources, are the result of an evolutionary process which originated in compounds with great structural diversity, multiple biological activities and miscellaneous applications. A large and very active research field is dedicated to identifying biosynthesized compounds; to improve/develop new methodologies to produce/reuse natural compounds; to assess their potential; and to understand their mechanism of action. This Special Issue brings together excellent original and review works, focused on the most recent advances related to the secondary metabolites’ composition of natural sources, and the proposal of new applications for their constituents, such as therapeutic agents, and pesticides or food ingredients.
Research & information: general --- Biology, life sciences --- heterologous expression --- Streptomyces --- secondary metabolite --- Garcinia xanthochymus --- growth inhibitory compounds --- allelopathy --- vanillic acid --- methyl phloretate --- allelopathic activity --- growth inhibitor --- phenolic compounds --- bioherbicide --- sustainable agriculture --- pulsed electric fields --- green extraction --- microalgae --- antioxidants --- pigments --- thymoquinone --- UHRF1 --- ubiquitination --- HAUSP --- tumor suppressor genes --- aaptoline B --- pyrroloquinoline --- Ag(I)-catalyzed cycloisomerization --- dopaminergic neuroprotection --- Parkinson’s disease --- bioactive compounds --- cardiovascular --- nanodelivery --- bioavailability --- Ailanthus altissima --- biological properties --- analytical techniques --- potential applications --- propolis contamination --- propolis cytotoxicity --- antimicrobial activity --- antiprotozoal activity --- artepelin C --- formononetin --- pinocembrin --- quercetin --- kaempferol --- propolis extract --- Asparagopsis armata --- Rhodophyta --- GC-MS --- UHPLC-MS --- dibrominated compounds --- 1,4-dibromobuten-1-ol --- palmitic acid --- brominated phenolics --- red seaweed --- invasive seaweed --- invasive species --- flowers --- antioxidant --- microbial activity --- bioactivity --- enzyme inhibitory potential --- acetylcholinesterase --- lipase --- α-glucosidase --- n/a --- Parkinson's disease
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This book emphasizes that soil productivity is considered an important factor for the success of agricultural production. The microbial community’s composition and the diversity of agricultural soils primarily depend on management practices. Exogenous nutritional inputs are inevitable processes in crop production, which can change the structure of soil bacterial communities. The combined application of compost and inorganic fertilizers might be a good way to keep up with agricultural productivity while maintaining the environmental balance. Bacterial communities are also known to differ according to the plant genotypes and hosts. Plant genotypic differences do not always lead to significant differences in microbiomes in the rhizosphere. It was concluded that imaginative research should address the simulation of the soil microenvironment, so as to understand the factors that regulate microbial activities in micro-niches.
Research & information: general --- halophyte --- arbuscular mycorrhizal fungi --- plant growth promoting rhizobacteria --- morphological characteristics --- photosynthesis --- soil enzymes --- microbial interactions --- rhizosphere --- DNA --- proteins --- microbial diversity --- microbial activity --- acidic soil improvement --- liming --- microbial community --- plant residue incorporation --- soil enzyme activity --- subtropical orchard soil --- phosphorus-enriched rhizosphere soils --- phosphate --- phytoremediation --- bacterial communities --- high-throughput sequencing --- Orchidaceae --- soil --- bacteria --- fungi --- microbiome --- heavy metal --- NGS --- azo dye --- textile --- wastewater --- diversity --- xenobiotics --- pollutant --- Nitrogen deposition --- soil biodiversity --- urban --- 16S rRNA --- wild-simulated ginseng --- Panax ginseng C.A. Meyer --- soil bacterial community --- soil property --- correlation analysis --- agricultural practices --- cultivar --- grafting --- interaction rootstock scion --- plant performance --- rhizosphere bacteria --- taxonomic indicators --- viticulture --- long-term fertilization --- next-generation sequencing --- bacterial diversity --- plant growth --- soil microbial community --- environmental factors --- soil contamination --- culture-independent analysis
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This book emphasizes that soil productivity is considered an important factor for the success of agricultural production. The microbial community’s composition and the diversity of agricultural soils primarily depend on management practices. Exogenous nutritional inputs are inevitable processes in crop production, which can change the structure of soil bacterial communities. The combined application of compost and inorganic fertilizers might be a good way to keep up with agricultural productivity while maintaining the environmental balance. Bacterial communities are also known to differ according to the plant genotypes and hosts. Plant genotypic differences do not always lead to significant differences in microbiomes in the rhizosphere. It was concluded that imaginative research should address the simulation of the soil microenvironment, so as to understand the factors that regulate microbial activities in micro-niches.
Research & information: general --- halophyte --- arbuscular mycorrhizal fungi --- plant growth promoting rhizobacteria --- morphological characteristics --- photosynthesis --- soil enzymes --- microbial interactions --- rhizosphere --- DNA --- proteins --- microbial diversity --- microbial activity --- acidic soil improvement --- liming --- microbial community --- plant residue incorporation --- soil enzyme activity --- subtropical orchard soil --- phosphorus-enriched rhizosphere soils --- phosphate --- phytoremediation --- bacterial communities --- high-throughput sequencing --- Orchidaceae --- soil --- bacteria --- fungi --- microbiome --- heavy metal --- NGS --- azo dye --- textile --- wastewater --- diversity --- xenobiotics --- pollutant --- Nitrogen deposition --- soil biodiversity --- urban --- 16S rRNA --- wild-simulated ginseng --- Panax ginseng C.A. Meyer --- soil bacterial community --- soil property --- correlation analysis --- agricultural practices --- cultivar --- grafting --- interaction rootstock scion --- plant performance --- rhizosphere bacteria --- taxonomic indicators --- viticulture --- long-term fertilization --- next-generation sequencing --- bacterial diversity --- plant growth --- soil microbial community --- environmental factors --- soil contamination --- culture-independent analysis
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