Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Paenibacillaceae, Genus Paenibacillus, Paenibacillus koreensis Chung,
Kim, Hwang and Chun 2000.
Description is based on a single isolate.
Gram-positive (but with the onset of spore formation, the cells became Gram-
negative), rods, 0.5-0.9 x 2.3-4.5 μm. Motile by peritrichous flagella. Produce
ellipsoidal spores in swollen sporangium.
3 types of colonies are formed on TSA: circular, flat, smooth and opaque; circular,
convex, glistening and translucent; and circular or irregular, wrinkled hollow and
opaque. Grow on soybean meal media.
Aerobic and anaerobic growth. Can grow at 10-50 ºC. Grows optimally on blood agar
at 38-40 ºC. No growth in 7% NaCl media.
Isolated from a compost sample prepared with rice husk and fishery industrial wastes collected from Chinju, Republic of Korea,
using the standard dilution agar plating method with minimal salt agar medium supplemented with 0.2% (w/v) colloidal chitin.
Resistant to lysozyme 0.001%.
Produces an iturin-like antifungal antibiotic; the strain showed strong antifungal activity against Rhizoctonia solani, a plant-pathogenic
fungus, Fusarium oxysporum, Colletotrichum lagenarium, Sclerotinia sclerotiorum and Botrytis cinerea.
- Chung Y.R., Kim C.H., Hwang I. and Chun J., 2000. Paenibacillus koreensis sp. nov., a new species that produces an iturin-like
antifungal compound. IJSEM 50, 1495-1500.
- Priest F.G., 2009. Genus I. Paenibacillus Ash, Priest and Collins 1994. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W.
Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes,
Positive results for arginine dihydrolase, catalase, oxidase, nitrate reduction, hydrolysis of esculin, hydrolysis of starch, hydrolysis of
casein, hydrolysis of chitosan, hydrolysis of chitin, ornithine decarboxylase, acid production from: N-acetylglucosamine, L-arabinose,
arabitol, galactose, D-glucose, inositol, lactose, maltose, D-mannitol, raffinose, sucrose, sorbitol & trehalose.
Negative results for citrate utilization, hydrolysis of urea, indole production, lysine decarboxylase, Voges-Proskauer, acid production
from: adonitol, amygdalin, inulin, ribose, rhamnose, salicin, tagatose & D-xylose.
(c) Costin Stoica