Integrating genomic evidence for an updated taxonomy of the bacterial genus Spiribacter.

The genus Spiribacter encompasses halophilic bacteria widely distributed in hypersaline environments worldwide. Despite their ecological significance, initially isolating Spiribacter species under laboratory settings was challenging due to the lack of knowledge of their growth and cultivation requirements. However, with improved understanding of their ecological niche and metabolic pathways, additional species of Spiribacter have been successfully isolated and identified from diverse locations around the globe.

Microbial solutions must be deployed against climate catastrophe.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

Microbial solutions must be deployed against climate catastrophe.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

Microbial solutions must be deployed against climate catastrophe.

This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.

Reclassification of Straková . 2024 and Straková . 2024 into the genus , as comb. nov. and comb. nov., respectively.

The haloarchaeal genera and , belonging to the family , order , class , within the phylum , have previously exhibited significant phylogenetic and taxonomic overlaps. This issue was recently resolved by merging the two genera into a single genus, . However, and were described almost simultaneously with the proposal to unify the genera and .

'Altruistic' cooperation among the prokaryotic community of Atlantic salterns assessed by metagenomics.

Hypersaline environments are extreme habitats with a limited prokaryotic diversity, mainly restricted to halophilic or halotolerant archaeal and bacterial taxa adapted to highly saline conditions. This study attempts to analyze the taxonomic and functional diversity of the prokaryotes that inhabit a solar saltern located at the Atlantic Coast, in Isla Cristina (Huelva, Southwest Spain), and the influence of salinity on the diversity and metabolic potential of these prokaryotic communities, as well as the interactions and cooperation among the individuals within that community. Brine samples were obtained from different saltern ponds, with a salinity range between 19.

Metagenomic insights into the prokaryotic communities of heavy metal-contaminated hypersaline soils.

Saline soils and their microbial communities have recently been studied in response to ongoing desertification of agricultural soils caused by anthropogenic impacts and climate change. Here we describe the prokaryotic microbiota of hypersaline soils in the Odiel Saltmarshes Natural Area of Southwest Spain. This region has been strongly affected by mining and industrial activity and feature high levels of certain heavy metals.

Judicial Opinion 130.

Opinion 130 deals with a Request for an Opinion asking the Judicial Commission to clarify whether the genus name Zopf 1891 (Approved Lists 1980) is illegitimate. The Request is approved and an answer is given. The name Zopf 1891 (Approved Lists 1980) is illegitimate because it is a later homonym of the validly published cyanobacterial name Hansgirg 1884.

sp. nov., a moderately halophilic bacterium from Urmia Lake, Iran.

A novel moderately halophilic, Gram-stain-negative and facultatively anaerobic bacterium, designated as strain TBZ242, was isolated from water of Urmia Lake in the Azerbaijan region of Iran. The cells were found to be rod-shaped and motile by a single polar flagellum, producing circular and yellowish colonies. The strain could grow in the presence of 0.

sp. nov., a haloarchaeal species isolated from a bore core drilled in Hubei Province, PR China.

Eight colonies of live microbes were isolated from an extensively surface-sterilized halite sample which had been retrieved from a depth of 2000 m from a salt mine in the Qianjiang Depression, Hubei Province, PR China. The eight colonies, obtained after 4 weeks of incubation, were named JI20-1-JI20-8 and JI20-1 was selected as the type strain. The strains have been previously described, including a genomic analysis based on the complete genome for strain JI20-1 and draft genomes for the other strains.

Proposed minimal standards for description of new taxa of the class .

Halophilic archaea of the class are the most salt-requiring prokaryotes within the domain . In 1997, minimal standards for the description of new taxa in the order were proposed. From then on, the taxonomy of the class provides an excellent example of how changing concepts on prokaryote taxonomy and the development of new methods were implemented.

The Hypersaline Soils of the Odiel Saltmarshes Natural Area as a Source for Uncovering a New Taxon: sp. nov.

The hypersaline soils of the Odiel Saltmarshes Natural Area are an extreme environment with high levels of some heavy metals; however, it is a relevant source of prokaryotic diversity that we aim to explore. In this study, six strains related to the halophilic genus were isolated from this habitat. The phylogenetic study based on the 16S rRNA gene sequence and the fingerprinting analysis suggested that they constituted a single new species within the genus .

Decoding the Genomic Profile of the Genus: Comparative Analysis and Characterization of Two Novel Species.

The genus , classified within the family , presently comprises eight haloarchaeal species isolated from diverse saline habitats, such as solar salterns, hypersaline soils, marine salt, and marine algae. Here, a detailed taxogenomic study and comparative genomic analysis of the genus was carried out. In addition, two strains, designated S1CR25-12 and S3CR25-11, that were isolated from hypersaline soils located in the Odiel Saltmarshes in Huelva (Spain) were included in this study.

The best of both worlds: a proposal for further integration of names into the International Code of Nomenclature of Prokaryotes.

The naming of prokaryotes is governed by the International Code of Nomenclature of Prokaryotes (ICNP) and partially by the International Code of Nomenclature for Algae, Fungi and Plants (ICN). Such codes must be able to determine names of taxa in a universal and unambiguous manner, thus serving as a common language across different fields and activities. This unity is undermined when a new code of nomenclature emerges that overlaps in scope with an established, time-tested code and uses the same format of names but assigns different nomenclatural status values to the names.

A long-awaited taxogenomic investigation of the family .

The family is the largest family composed of halophilic bacteria, with more than 160 species with validly published names as of July 2023. Several classifications to circumscribe this family are available in major resources, such as those provided by the List of Prokaryotic names with Standing in Nomenclature (LPSN), NCBI Taxonomy, Genome Taxonomy Database (GTDB), and Bergey's Manual of Systematics of Archaea and Bacteria (BMSAB), with some degree of disagreement between them. Moreover, regardless of the classification adopted, the genus is not phylogenetically consistent, likely because it has been used as a catch-all for newly described species within the family that could not be clearly accommodated in other genera.

Characterization of sp. nov. and reclassification of a species based on a taxogenomic approach.

An extremely halophilic archaeon, strain S1AR25-5A, was isolated from a hypersaline soil sampled in Odiel Saltmarshes Natural Area (Huelva, Spain). The cells were Gram-stain-negative, motile, pleomorphic rods. Cell growth was observed in the presence of 15-30 % (w/v) NaCl [optimum, 25 % (w/v) NaCl], at pH 6.

sp. nov., a slightly halophilic bacterium from a hypersaline lake.

A novel halophilic bacterium, strain 71-i, was isolated from Inche-Broun hypersaline lake in Golestan province, in the north of Iran. It was a Gram-stain-negative, non-endospore forming, rod-shaped bacterium. It grew at 4-40 °C (optimum 30 °C), pH 6.