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Article

Isolation and Molecular Characterization of Cellulolytic Bacillus Isolates from Soil and Compost

1Department of Botany and Agric. Biotechnology, Faculty of Agriculture, University of Khartoum, 13314 Shambat, Sudan

2Department of Botany, Faculty of Science, University of Khartoum, Sudan


American Journal of Microbiological Research. 2015, Vol. 3 No. 2, 55-58
DOI: 10.12691/ajmr-3-2-2
Copyright © 2015 Science and Education Publishing

Cite this paper:
Elhadi A. I. Elkhalil, Fatima Y. Gaffar, Marmar A. El Siddig, Huda A. H. Osman. Isolation and Molecular Characterization of Cellulolytic Bacillus Isolates from Soil and Compost. American Journal of Microbiological Research. 2015; 3(2):55-58. doi: 10.12691/ajmr-3-2-2.

Correspondence to: Elhadi  A. I. Elkhalil, Department of Botany and Agric. Biotechnology, Faculty of Agriculture, University of Khartoum, 13314 Shambat, Sudan. Email: eaikhalil@yahoo.com

Abstract

Fifty five Bacillus isolates were isolated from compost, and alkaline silty clay soil (rhizosphere of potato plant) in Shambat, Khartoum North, Sudan, and screened using morphological tests, biochemical and molecular characterization using 16s rDNA analysis., Screening of cellulase producing isolates was done using carboxyl methyl cellulose (CMC) as a substrate at 25°C. Twenty six isolates were found to be cellulase producers. Among the isolates, four isolates, 9+, 23, 20 and 13 showed high potential in producing extracellular cellulase and had an average cellulase activity of 2.89, 3.12, 3.48 and 3.53 Unit/ml, respectively. Genetic distance between the four isolates with high cellulase activity was determined with RAPD analysis based on OPC-3 primer.

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