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Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Corynebacterinae, Family
Corynebacteriaceae, Genus Corynebacterium,
Corynebacterium appendicis Yassin, Steiner and Ludwig 2002.

Description is based on a single isolate.
Thin, pleomorphic coryneform cells. Non-motile. Non-spore-forming.
Colonies are dry, small (< 0.5 mm), slightly greyish after 2 days at 37 ºC on Columbia
blood agar supplemented with 5% sheep blood; the colonies are larger, slightly
creamy on BHI agar and TSA supplemented with 1% Tween 80. Nonhaemolytic.
Facultatively anaerobic.
Isolated from human.
Isolated from a patient with appendicitis accompanied by abscess formation.
  1. Yassin A.F., Steiner U. and Ludwig W., 2002. Corynebacterium appendicis sp. nov. IJSEM 52, 1165-1169.
  2. Funke G ., 2006. Corynebacteria and rare coryneforms. In: Topley & Wilson’s Microbiology & Microbial Infections, 10th Edition,
    Edited by Borriello S.P., Murray P.R. and Funke G.,Edward Arnold (Publishers) Ltd., Bacteriology, volume 2.
Fermentative metabolism. Non-acid-alcohol-fast.

Positive results for alkaline phosphatase, catalase, lipophilism, pyrazinamidase, urease, Voges-Proskauer reaction, acid production
from: glucose (in 7 days in API CORYNE), glycerol & maltose (in 7 days in API CORYNE).

Negative results for acid phosphatase, arginine dihydrolase, esculin hydrolysis, gelatin hydrolysis, hippurate hydrolysis, indole
production, nitrate reduction, starch hydrolysis, acid production from: arabinose, arabitol, cellobiose, glycogen, inulin, lactose,
mannitol, melezitose, melibiose, raffinose, rhamnose, ribose, salicin, sorbitol, sucrose, tagatose, trehalose & xylose.
Corynebacterium appendicis
(c) Costin Stoica
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