Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus indicus Suresh, Prabagaran,
Sengupta and Shivaji 2004.
Description is based on a single isolate.
Gram-positive, nonmotile rods, 0.9-1.2 x 3.3-5.3 µm, producing subterminal,
ellipsoidal endospores in slightly swollen sporangia.
Colonies are yellowish-orange pigmented (carotenoids), raised, smooth, convex and
3.0-4.0 mm in diameter. Grow aerobically (anaerobic growth was not tested). Grow at
pH 6-7 and 15-37 ºC (optimum temperature 30 ºC). Grow in nutrient broth with 2%
NaCl added. Allantoin and urate are not required for growth.
Isolated from sand of an arsenic-contaminated aquifer in West Bengal, India. Resistant to amoxycillin, arsenate and arsenite.
- N.A. Logan and P. De Vos, 2009. Genus I. Bacillus Cohn 1872. 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, Springer, 21-127.
- Suresh K., Prabagaran S.R., Sengupta S. and Shivaji S., 2004. Bacillus indicus sp. nov. an arsenic-resistant bacterium isolated
from an aquifer in West Bengal, India. IJSEM 54, 1369-1375.
Positive results for arginine dihydrolase, hydrolysis of esculin, hydrolysis of gelatin,
catalase, acid production from: D-mannose.
Negative results for hydrolysis of urea, indole production, nitrate reduction, hydrolysis of starch, Voges-Proskauer, citrate utilization,
hydrolysis of Tween 20, acid production from: D-glucose, lactose, D-mannitol & D-xylose.
(c) Costin Stoica