"Proteobacteria" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.
MeSH information
A phylum of bacteria consisting of the purple bacteria and their relatives which form a branch of the eubacterial tree. This group of predominantly gram-negative bacteria is classified based on homology of equivalent nucleotide sequences of 16S ribosomal RNA or by hybridization of ribosomal RNA or DNA with 16S and 23S ribosomal RNA.

This graph shows the total number of publications written about "Proteobacteria" by people in this website by year, and whether "Proteobacteria" was a major or minor topic of these publications.
Bar chart showing 578 publications over 23 distinct years, with a maximum of 81 publications in 2018
To see the data from this visualization as text, click here.