TY - RPRT TI - RhuR, an extracytoplasmic function sigma factor activator, is essential for heme-dependent expression of the outer membrane heme and hemoprotein receptor of Bordetella avium. AU - Amy E Kirby AU - Natalie D King AU - Terry D Connell PY - 2004 DO - 10.1128/iai.72.2.896-907.2004 UR - https://pubmed.ncbi.nlm.nih.gov/14742534/ ID - 14742534 ER -