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Proposal for a New Hierarchic Classification System, Actinobacteria classis nov.
TLDR
A classification system in which phylogenetically neighboring taxa at the genus level are clustered into families, suborders, orders, subclasses, and a class irrespective of those phenotypec characteristics on which the delineation of taxa has been based in the past is presented.
Agrococcus jenensis gen. nov., sp. nov., a new genus of actinomycetes with diaminobutyric acid in the cell wall.
TLDR
Two strains of a new gram-positive coryneform bacterium isolated from soil and from a sandstone surface are described and it is revealed that this strain represents a new genus belonging to the group of actinomycetes that have diaminobutyric acid in their peptidoglycans.
Deinococcus geothermalis sp. nov. and Deinococcus murrayi sp. nov., two extremely radiation-resistant and slightly thermophilic species from hot springs.
TLDR
16S rRNA gene sequencing showed that the isolates constitute two species and that these species are distinct from the other species of the genus Deinococcus, and that the fatty acids of these new species are primarily branched-chain fatty acids.
Extensive Diversity of Ionizing-Radiation-Resistant Bacteria Recovered from Sonoran Desert Soil and Description of Nine New Species of the Genus Deinococcus Obtained from a Single Soil Sample
TLDR
The recovery of large numbers of extremely ionizing-radiation-resistant bacteria from an arid soil and not from a nonarid soil provides further ecological support for the hypothesis that the ionizing -radiation resistance phenotype is a consequence of the evolution of other DNA repair systems that protect cells against commonly encountered environmental stressors, such as desiccation.
Effect of genome size and rrn gene copy number on PCR amplification of 16S rRNA genes from a mixture of bacterial species
TLDR
The experimentally determined ratio of PCR products obtained, as determined by image analysis of SYBR-Green I-stained amplification products, corresponded well with the predicted ratio calculated from the number of rrn genes per equimolar amounts of DNA in mixtures of Escherichia coli and "Thermus thermophilus".
The genus Nocardiopsis represents a phylogenetically coherent taxon and a distinct actinomycete lineage: proposal of Nocardiopsaceae fam. nov.
TLDR
The phylogenetic position and the morpho- and chemotaxonomic properties of Nocardiopsis species support the creation of a family for the genus NOCardiopsis, Nocardopsaceae fam.
Demetria terragena gen. nov., sp. nov., a new genus of actinomycetes isolated from compost soil.
TLDR
It is suggested that strain HKI 0089 should be classified in a new genus and species, for which the name Demetria terragena is proposed, on the basis of the results of taxonomically and phylogenetically studied.
Mars-Like Soils in the Atacama Desert, Chile, and the Dry Limit of Microbial Life
TLDR
The presence of Mars-like soils in the extreme arid region of the Atacama Desert is reported and incubation experiments show active decomposition of organic species in these soils by nonbiological processes.
Novel anaerobic ultramicrobacteria belonging to the Verrucomicrobiales lineage of bacterial descent isolated by dilution culture from anoxic rice paddy soil
TLDR
The phylogenetic analysis on the basis of 16S ribosomal DNA (rDNA) sequence comparisons indicates that the new isolates belong to a branch of the Verrucomicrobiales lineage and are closely related to a cloned 16S rDNA sequence (PAD7) recovered from rice paddy field soil from Japan.
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