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29 results for “Firmicutes”
Fig. 1 in A report of 35 unreported bacterial species in Korea, belonging to the phylum Firmicutes
Fig. 1. Neighbor-joining tree based on 16S rRNA gene sequences showing the phylogenetic relationships between the strains isolated in this study and their relatives of (A) the order Bacillales and (B) the order Lactobacillales. Filled circles indicate that the corresponding nodes (groupings) were also recovered in the maximum likelihood tree. Bootstrap values (>70%) are shown above nodes. Escherichia coli ATCC 11775T (X80725) was used as an outgroup.
An ancestral dual function of OmpM as outer membrane tether and nutrient uptake channel in diderm Firmicutes
<p>Trajectories, run input files, and custom analysis script for simulations described in the article:<strong> An ancestral dual function of OmpM as outer membrane tether and nutrient uptake channel in diderm Firmicutes</strong> (Silale <em>et al, </em>2023). </p> <p>Preprint: https://doi.org/10.1101/2023.08.14.552755 </p>
Data from: Phylogenomic analysis supports the ancestral presence of LPS-outer membranes in the Firmicutes
One of the major unanswered questions in evolutionary biology is when and how the transition between diderm (two membranes) and monoderm (one membrane) cell envelopes occurred in Bacteria. The Negativicutes and the Halanaerobiales belong to the classically monoderm Firmicutes, but possess outer membranes with lipopolysaccharide (LPS-OM). Here, we show that they form two phylogenetically distinct lineages, each close to different monoderm relatives. In contrast, their core LPS biosynthesis enzymes were inherited vertically, as in the majority of bacterial phyla. Finally, annotation of key OM systems in the Halanaerobiales and the Negativicutes shows a puzzling combination of monoderm and diderm features. Together, these results support the hypothesis that the LPS-OMs of Negativicutes and Halanaerobiales are remnants of an ancient diderm cell envelope that was present in the ancestor of the Firmicutes, and that the monoderm phenotype in this phylum is a derived character that arose multiple times independently through OM loss.
Fig. 2 in A report of 35 unreported bacterial species in Korea, belonging to the phylum Firmicutes
Fig. 2. Transmission electron micrographs or scanning electron micrographs of cells of (A) the order Bacillales and (B) the order Lactobacillales. Strains: 1, HMF5940; 2, GA079; 3, 18JY44-4; 4, LPB0245; 5, CAU 1495; 6, 18S2L7; 7, CAU 1503; 8, HMF7158; 9, 18H7A6; 10, MS18-CY120; 11, HMF7562; 12, GY1; 13, 18JY2-4; 14, CAU 1497; 15, CAU 1499; 16, 18N1A7; 17, CAU1496; 18, 18H3T14; 19, LPB0217; 20, LPB0242; 21, CAU 1515; 22, CAU 1514; 23, LPB0228; 24, LPB0216; 25, LPB0238; 26, LPB0236; 27, LPB0237; 28, LPB0215; 29, LPB0235; 30, LPB0239; 31, LPB0222; 32, LPB0219; 33, LPB0221; 34, LPB0225; 35, LPB0227.
Data from: Phylogenomic analysis supports the ancestral presence of LPS-outer membranes in the Firmicutes
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BamA self-insertion drives inner to outer membrane remodelling in diderm Firmicutes
GEO Series GSE306945. Acetonema longum. 18 samples. Type: Expression profiling by high throughput sequencing.
Dataset - Comparative Genomics of Firmicutes reveals probable adaptations for xylose fermentation in Thermoanaerobacterium saccharolyticum
<p>Files partaining to a comparative genomics analysis of the firmicutes clade, focusing on <em>Thermoanaerobacterium saccharolyticum</em></p>
Isolation of an efficient glycosaminoglycans degrading human gut Firmicutes Hungatella hathewayi and the characterization of its Chondroitin ABC exolyase with high activity and broad substrate specifi
GEO Series GSE211011. Hungatella hathewayi. 6 samples. Type: Expression profiling by high throughput sequencing.
Levels and Characteristics of mRNAs in Dormant Spores of Firmicute Species
GEO Series GSE173854. Bacillus thuringiensis str. Al Hakam; Clostridioides difficile 630; Priestia megaterium QM B1551; Bacillus subtilis; Bacillus atrophaeus ATCC 9372; Geobacillus stearothermophilus ATCC 12980. 12 samples. Type: Expression profiling by high throughput sequencing.
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International Brain Laboratory public data
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OpenNeuro
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