Related Experiment Video
Updated: Nov 1, 2025
11:43
Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers
Published on: March 24, 2023
1.6K
Devosia sediminis sp. nov., isolated from subterranean sediment.
1College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
Archives of Microbiology
|June 19, 2021
Summary
A novel bacterium, Devosia sediminis MSA67T, was discovered in Chinese subterranean sediment. This aerobic, Gram-negative organism expands the known diversity within the Devosia genus.
Area of Science:
- Microbiology
- Bacteriology
- Taxonomy
Background:
- Subterranean environments harbor unique microbial communities.
- The genus Devosia comprises Gram-negative bacteria with diverse metabolic capabilities.
Purpose of the Study:
- To characterize a novel bacterium isolated from a subterranean sediment sample.
- To determine the phylogenetic and taxonomic position of the novel isolate.
Main Methods:
- Isolation and cultivation of the bacterial strain MSA67T.
- Physicochemical property analysis (temperature, pH, salinity tolerance).
- Phylogenetic analysis using 16S rRNA gene sequencing.
- Genomic and chemotaxonomic analyses (fatty acid, polar lipid, quinone composition, DNA G+C content).
Main Results:
- Strain MSA67T is a Gram-negative, aerobic, non-motile rod.
- Optimal growth observed at 28–30 °C, pH 7.0, and 2.0–3.0% NaCl.
- Phylogenetic analysis places MSA67T within the genus Devosia, closely related to D. riboflavina and D. chinhatensis.
- Chemotaxonomic data (major fatty acids, polar lipids, Q-10) and genomic size (4.1 MB) and DNA G+C content (63.6%) are consistent with a novel species.
Conclusions:
- Strain MSA67T represents a novel species within the genus Devosia.
- The proposed name for this new species is Devosia sediminis sp. nov.
- The type strain is MSA67T (CGMCC 1.18467T, KCTC 82192T).
Related Concept Videos
01:15Diversity of Protists I
570
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
570
01:29Diversity of Archaea IV
206
Hyperthermophilic archaea are a group of extremophiles thriving at temperatures above 80°C, often in hydrothermal vents and volcanic soils where conditions surpass the boiling point of water. At such temperatures, proteins, membranes, and DNA in most organisms degrade, but hyperthermophiles have evolved remarkable adaptations to maintain stability and function.Unique Cellular FeaturesHyperthermophilic membranes are composed of a monolayer of biphytanyl tetraether lipids, which resist...
206
01:27Diversity of Archaea III
163
Crenarchaeota, a prominent phylum of Archaea, is remarkable for its ability to thrive in extreme environments characterized by high temperatures and acidity. These microorganisms inhabit sulfuric hot springs, volcanic systems, and submarine hydrothermal vents, where temperatures often exceed 100°C. The unique adaptations of Crenarchaeota not only allow survival under such extreme conditions but also provide insights into the mechanisms of life in primordial Earth-like...
163
01:24Diversity of Archaea II
199
Archaea, one of the three domains of life, exhibit remarkable diversity and adaptability, thriving in both extreme and moderate environments. Historically, most identified archaea have been classified into two major phyla: Euryarchaeota and Crenarchaeota. However, recent molecular studies have expanded this classification to include three additional phyla: Thaumarchaeota, Nanoarchaeota, and Korarchaeota, each exhibiting unique characteristics and ecological roles.Thaumarchaeota: Mesophiles...
199
01:27Diversity of Protists IV
523
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
523
00:46Bioremediation
21.5K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
21.5K