@article{mbs:/content/journal/ijsem/10.1099/00207713-38-3-321, author = "Stackebrandt, E. and Murray, R. G. E. and Trüper, H. G.", title = "Proteobacteria classis nov., a Name for the Phylogenetic Taxon That Includes the “Purple Bacteria and Their Relatives”", journal= "International Journal of Systematic and Evolutionary Microbiology", year = "1988", volume = "38", number = "3", pages = "321-325", doi = "https://doi.org/10.1099/00207713-38-3-321", url = "https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-38-3-321", publisher = "Microbiology Society", issn = "1466-5034", type = "Journal Article", abstract = " Proteobacteria classis nov. is suggested as the name for a new higher taxon to circumscribe the a, β, γ, and δ groups that are included among the phylogenetic relatives of the purple photosynthetic bacteria and as a suitable collective name for reference to that group. The group names (alpha, etc.) remain as vernacular terms at the level of subclass pending further studies and nomenclatural proposals.", }