<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31303675</termId><termName>Proteobacteria</termName><termType>PT</termType><termNote><![CDATA[ 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. ]]></termNote><termCreatedDate>2026-03-30 20:21:40</termCreatedDate><relation><relationType>BT</relationType><termId>31298596</termId><termName>Bacteria</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31316188</termId><termName>Gammaproteobacteria</termName><termType>PT</termType></relation></term>  </Zthes>