Update on novel validly published taxa of bacteria isolated from domestic animals described in 2022

With the proliferation of abundant bacterial genomic data comes the recognition of new organisms as well as a better understanding of the relatedness of known bacteria. Recognizing the associated taxonomic changes enhances communication and understanding about the significance of novel organisms and deeper understanding of known pathogens. This review addresses the addition of multiple gastrointestinal bacteria that form the normal microbiota in a variety of animals including honeybees as well as novel bacteria from domestic animals including an alpha-hemolytic Streptococcus species from guinea pigs, two Moraxella spp. from cows and goats, a new Capnocytophaga species from cats, a thermophilic Campylobacter species from pigs, and the new Exercitatus genus in Family Pasteurellaceae . Several revisions to the nomenclature also appeared in 2023 including the change of Clostridium spiroforme, which causes anorexia and diarrhea in domestic rabbits, to Thomasclavelia spiroformis comb. nov. and Mannheimia ovis to Mannheimia pernigra .

An update on novel taxa and revised taxonomic status of bacteria isolated from domestic companion and agricultural animals described in 2023

Lawhon,

Burbick,

Krueger

et al. 2024

Valid and accepted novel bacterial taxa isolated from non-domestic animals and taxonomic revisions published in 2023

Munson,

Burbick,

Lawhon

et al. 2024

Continued investigation into the bacteria associated with non-domestic animals provides important information for recognizing normal flora, assessing the health status of these unique species of animals, and identifying new or emerging pathogens of concern. In this summary of novel taxa and taxonomic revisions, considerable additions have been made toward understanding fecal and mucosal flora in multiple wild animal species. In addition, novel pathogenic bacteria are discussed, including multiple Chlamydia spp. causing disease in a hawk and crocodile, two Corynebacterium spp. causing oral lesions in penguins and a lesser-known genus, Mergibacter within Family Pasteurellaceae , causing disease in multiple wild bird species. Finally, a few revisions to bacteria isolated from normal non-domestic animal body sites are mentioned.

An update on novel taxa and revised taxonomic status of bacteria isolated from aquatic host species described in 2022–2023

Burbick,

Lawhon,

Bukouras

et al. 2024

The description of new taxa and nomenclature updates to currently known taxa from aquatic animal species continues. After a review of the literature from 2022 and 2023, multiple lists of bacteria, including members of Phylum Planctomycetota , were compiled. As with the previous review, most bacteria are oxidase-positive Gram-negative bacilli with familiar families including new taxa in Aeromonadaceae , Flavobacteriaceae , and Vibrionaceae . A number of Gram-positive bacilli are described including new taxa in the Nocardioides , Paenibacillus , and Streptomyces genera. Two anaerobic species are listed, and one new member of Family Planctomycetaceae is noted. Revised taxa are briefly mentioned. The majority of new and revised taxa are isolated from healthy aquatic animals, and therefore, the role of these new bacteria in health and disease is unknown. Bacteria with pathogenic association and potential production of bioactive substances are highlighted.