Corynebacterium renale

{{Short description|Species of bacterium}}

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| image = Corynebacterium renale culture.jpg

| image_caption = Blood agar plate culture of Corynebacterium renale

| taxon = Corynebacterium renale

| authority = (Migula 1900) Ernst 1906 (Approved Lists 1980)

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Corynebacterium renale is a pathogenic bacterium that causes cystitis and pyelonephritis in cattle.{{cite web | title = Bovine Cystitis and Pyelonephritis | work = The Merck Veterinary Manual | date = 2006 | url = http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/130302.htm | access-date = 2007-06-05 }}

C. renale is a facultatively anaerobic Gram-positive organism, characterized by nonencapsulated, nonsporulated, immobile, straight or curved rods with a length of 1 to 8 μm and width of 0.3 to 0.8 μm, which forms ramified aggregations in culture (looking like "Chinese characters").

The bacterium is sensitive to the majority of antibiotics, such as penicillins, ampicillin, cephalosporins, quinolones, chloramphenicol, tetracyclines, cefuroxime, and trimethoprim.

Due to similarities in diagnostic testing procedures Corynebacterium cystiditis may be misdiagnosed as Corynebacterium renale in beef cattle.{{Cite journal|doi=10.1111/jvim.15844|title=Clinical presentations and antimicrobial susceptibilities of Corynebacterium cystitidis associated with renal disease in four beef cattle|year=2020|last1=Smith|first1=Joe S.|last2=Krull|first2=Adam C.|last3=Schleining|first3=Jennifer A.|last4=Derscheid|first4=Rachel J.|last5=Kreuder|first5=Amanda J.|journal=Journal of Veterinary Internal Medicine|volume=34|issue=5|pages=2169–2174|pmid=32830373|pmc=7517842}}