2018
DOI: 10.3389/fmicb.2018.02775
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Hydrolytic Capabilities as a Key to Environmental Success: Chitinolytic and Cellulolytic Acidobacteria From Acidic Sub-arctic Soils and Boreal Peatlands

Abstract: Members of the Acidobacteria are among the most efficient colonizers of acidic terrestrial habitats but the key traits underlying their environmental fitness remain to be understood. We analyzed indigenous assemblages of Acidobacteria in a lichen-covered acidic (pH 4.1) soil of forested tundra dominated by uncultivated members of subdivision 1. An isolate of these bacteria with cells occurring within saccular chambers, strain SBC82T, was obtained. The genome of strain SBC82T consists of a 7.11-Mb chromosome an… Show more

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Cited by 59 publications
(39 citation statements)
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“…S8), including members from subdivisions 1 (genera Acidipila, Edaphobacter and Granulicella), 2 (MAGs only), 3 (genera Bryobacter, 'Candidatus Solibacter') and 4 (genus Pyrinomonas). The acidobacterial hhyL sequences stemming from pure cultures [56,57,[60][61][62][63], genomes and MAGs originated from soil (Table S4) and formed a distinct cluster (Fig. 3), as also observed with our derived amplicon sequences (Fig.…”
Section: A Cluster Of Acidobacterial High-affinity Hydrogenases Are Asupporting
confidence: 81%
“…S8), including members from subdivisions 1 (genera Acidipila, Edaphobacter and Granulicella), 2 (MAGs only), 3 (genera Bryobacter, 'Candidatus Solibacter') and 4 (genus Pyrinomonas). The acidobacterial hhyL sequences stemming from pure cultures [56,57,[60][61][62][63], genomes and MAGs originated from soil (Table S4) and formed a distinct cluster (Fig. 3), as also observed with our derived amplicon sequences (Fig.…”
Section: A Cluster Of Acidobacterial High-affinity Hydrogenases Are Asupporting
confidence: 81%
“…Thus, most acidobacteria that are commonly detected in bogs are affiliated with one particular class of this phylum, i.e., the Acidobacteriia [36]. The latter accommodates aerobic and facultatively anaerobic, acidophilic or acidotolerant, mesophilic and psychrotolerant, chemoheterotrophic bacteria, which utilize various sugars and polysaccharides, and possess a number of hydrolytic capabilities including the abilities to degrade cellulose and chitin [37,38]. The most abundant bog-specific OTU determined in our study belonged to the as-yet-uncultivated group within the order Acidobacteriales and displayed highest similarity to the environmental clone sequence (GenBank accession No.…”
Section: Discussionmentioning
confidence: 99%
“…Each bacterium carries its enzyme machinery catalyzing the breakdown of diverse carbohydrates and nitrogen-containing compounds, which could be used as an identifying characteristic for differentiating varied bacterial species. Acidobacterial genomes possess genes encoding enzymes for the degradation of complex carbohydrate polymers viz., xylan, cellulose, hemicelluloses, pectin, starch, and chitin; amino acids, alcohols, and metabolic intermediates (Ward et al, 2009;Belova et al, 2018). In addition to these, gene modules for diverse carbohydrate breakdown, utilization, and biosynthesis within carbohydrate-active enzymes (CAZy) family are also present (Männistö et al, 2012;Rawat et al, 2012a), spanning across 131 glycoside hydrolase (GH) families (Gilbert, 2010).…”
Section: Genes For Carbon Metabolismmentioning
confidence: 99%
“…Involvement in carbon cycle King and Weber, 2007;Banerjee et al, 2016;García-Fraile et al, 2016;Belova et al, 2018;Dedysh and Damsté, 2018 Involvement in nitrogen cycle Ward et al, 2009;Rajeev et al, 2015;Eichorst et al, 2018 Involvement in sulfur cycle Wasmund et al, 2017;Hausmann et al, 2018 Involvement in plant growth promotion Kielak et al, 2016b;Kalam et al, 2017a Involvement as "keystone taxa" Banerjee et al, 2016;Jiang et al, 2017;Li et al, 2017;Banerjee et al, 2018 Involvement in soil matrix formation Kielak et al, 2016a;Kielak et al, 2017 Establishment of biofilms Ward et al, 2009;Kielak et al, 2016a;Kielak et al, 2016b Production of exopolysaccharides Ward et al, 2009;Rawat et al, 2012a;Kielak et al, 2017 Biosynthesis of secondary metabolites Ward et al, 2009;Parsley et al, 2011;Hadjithomas et al, 2015;Damsté et al, 2017;Crits-Christoph et al, 2018 Tolerance to stress, starvation, and acidity Ward et al, 2009;Challacombe et al, 2011;Morris and Schmidt, 2013;Greening et al, 2015;Rajeev et al, 2015;Eichorst et al, 2018;Domeignoz-Horta et al, 2019;Pinto et al, 2020 Presence of mobile genetic elements Frost et al, 2005;…”
Section: Salient Features Referencesmentioning
confidence: 99%
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