Notification that new names and new combinations have appeared in volume 52, part 5, of the IJSEM

This article is a notification listing new bacterial names and combinations published in volume 52, part 5 of the International Journal of Systematic and Evolutionary Microbiology (IJSEM). Following a procedure established by the Judicial Commission, the document catalogs newly validated bacterial species and genera, including their priority order based on publication page numbers. The list includes numerous newly described species such as Plantibacter flavus, Psychromonas marina, and Clostridium thiosulfatireducens, along with reclassifications and taxonomic amendments. Notable taxonomic reorganizations include the reclassification of multiple Sphingomonas species into new genera (Sphingobium, Novosphingobium, and Sphingopyxis). Additionally, the list documents emendations of existing genera and species, as well as new combinations establishing different nomenclatural relationships. The notification serves as an administrative reference tool for the bacteriological community to track newly validated names and maintain accurate taxonomic records.

Key findings

• Multiple new bacterial genera and species were validly published in IJSEM volume 52, part 5, including Plantibacter, Shuttleworthia, Aequorivita, and Thermanaeromonas
• Significant taxonomic reorganization occurred within the Sphingomonas group, with species reclassified into three new genera: Sphingobium, Novosphingobium, and Sphingopyxis
• The list includes cyanobacterial taxa noted as not validly described under the Bacteriological Code, requiring clarification of their taxonomic status
• Various bacterial taxa underwent emendations and new combinations, reflecting refinements in taxonomic classification