Endomicrobium trichonymphae Stingl et al. 2005 Stingl U. Radek R. Yang H. Brune A. "Endomicrobia": cytoplasmic symbionts of termite gut protozoa form a separate phylum of prokaryotes. 2005 71 3 1473 1479 Applied and Environmental Microbiology Appl Environ Microbiol 0099-2240 1098-5336 10.1128/AEM.71.3.1473-1479.2005 15746350