Research Article | OPEN ACCESS
Using Aflatoxin B1 Regulatory Gene Sequencing to Study Similarity and Difference between Aspergillus flavus Strains, Isolated from Patients with Aspergllosis
Nemat J. Al-judy
Department of Biology, College of Science, University of Baghdad, Jadriyah, Baghdad, Iraq
Current Research Journal of Biological Sciences 2014 6:229-233
Received: August 22, 2014 | Accepted: September 25, 2014 | Published: November 20, 2014
Abstract
Aflatoxins are carcinogenic fungal secondary metabolites produced by Aspergillus flavus and other closely related species, The work in this study presented the first detailed molecular analyses of AFLAR2 gene in the strains of Aspergillus flavus isolated from patient with aspergillosis infections In this study, rapid assessment of 14 isolates of A. flavus was accomplished using an indigenously designed primer pair for the Aflatoxin regulatory gene aflR2 in Polymerase Chain Reaction (PCR). Specificity was assayed in pure culture systems using DNA extracted from 14 different A. flavus straines as PCR template. Positive amplification was achieved only with DNA from 10 A. flavus that produce Aflatoxin B1.
Keywords:
AFLAR2, aspergillosis, Aspergillus flavus,
References
- Chang, P.K., 2003. The Aspergillus parasiticus protein AFLJ interacts with the aflatoxin pathway-specific regulator AFLR. Mol. Genet. Genomics, 268: 711-719.
PMid:12655397
- Chang, P.K., J.W. Bennett and P.J. Cotty, 2002. Association of aflatoxin biosynthesis and sclerotial development in Aspergillus parasiticus. Mycopathologia, 153: 41-48.
CrossRef PMid:11913765
- Cleveland, T.E., J. Yu, N. Fedorova, D. Bhatnagar, G.A. Payne, W.C. Nierman and J.W. Bennett, 2009. Potential of Aspergillus flavus genomics for applications in biotechnology. Trends Biotechnol., 27(3): 151-157.
CrossRef PMid:19195728
-
Clifford, J.I. and K.R. Rees, 1967. The interaction of afiatoxins with purines and purine nucleosides. Biochem. J., 103: 467-471.
CrossRef PMid:6032981 PMCid:PMC1270429
-
Denning, D.W., 1998. Invasive aspergillosis. Clin. Infect. Dis., 26: 781-803.
CrossRef PMid:9564455
- Ehrlich, K.C., J.W. Cary and B.G. Montalbano, 1999. Characterization of the promoter for the gene encoding the aflatoxin biosynthetic pathway regulatory protein AFLR. Biochim. Biophys. Acta, 1444: 412-417.
CrossRef
- Farber, P., R. Geisen and W.H. Holzapfe, 1997. Detection of aflatoxigenic fungi in figs by a PCR reaction. Int. J. Food Microbiol., 36: 215-220.
CrossRef
- Felsenstein, J., 2004. PHYLIP (Phylogeny Inference Package). Version 3.6. Distributed by the Author. Department of Genome Sciences, University of Washington, Seattle, USA.
PMCid:PMC373417
- Fridkin, S.A. and W.R. Jarvis, 1996. Epidemiology of fungal nosocomial infections. Clin. Microbiol. Rev., 9: 499-511.
PMid:8894349 PMCid:PMC172907
- Hedayati, M.T., A.C. Pasqualotto, P.A. Warn, P. Bower and D.W. Denning, 2007. Aspergillus flavus: Human pathogen, allergen and mycotoxin producer. Microbiology, 153: 1677-1692.
CrossRef PMid:17526826
-
Maniatis, T., E.F. Fritch and J. Sambrook, 1982. Molecular Cloning: A Laboratory Manual. Cold Spring Harbor Press, Cold Spring Harbor, New York.
- Nei, M. and W. Li, 1979. Mathematical model for studying genetic variation in terms of restriction endonucleases. P. Natl. Acad. Sci. USA, 76(10): 5269-5273.
CrossRef PMid:291943 PMCid:PMC413122
-
Noorbacash, R., R.B. Ahmed, S.A. Mortazavi, B. Forghani and N. Bahreini, 2009. PCR-based identification of afltoxigenic fungi associated with Iranian saffron. Food Sci. Biotechnol., 18: 1038-1040.
-
Rigo, K., J. Varga, B. Toth, J. Teren, A. Mesterhazy and Z. Kozakiewicz, 2002. Evolutionary relationships within aspergillussection flavi based on sequences of the intergenic transcribed spacer regions and the 5.8S rRNA gene. J. Gen. Appl. Microbiol., 48: 9-16.
CrossRef PMid:12469311
-
Rodrigues, P., A. Venāncio, Z. Kozakiewicz and N. Lima, 2009. A polyphasic approach to the identification of aflatoxigenic anon aflatoxigenic strains of aspergillus section flavi isolated from Portuguese almonds. Int. J. Food Microbiol., 129: 187-193.
CrossRef PMid:19110333
- Rogers, T.R., 1995. Epidemiology and control of nosocomial fungal infections. Curr. Opin. Infect. Dis., 8: 287-290.
CrossRef
- Sambrook, J., E.F. Fritsch and T. Maniatis, 1989. Molecular Cloning: A Laboratory Manual. Cold Spring Harbor Press, Cold Spring Harbor, New York, USA.
- Samson, R.A., 2001. Current fungal taxonomy and mycotoxins. Mycotoxins and phycotoxins in perspective at the turn of the millennium. Proceedings of the 10th International IUPAC Symposium on Mycotoxins and Phycotoxins, Brazil.
-
Shapira, R., N.R. Pasti, O. Fyai, M. Minastherov, A. Mett and R. Salomon, 1996. Detection of aflatoxigenic moulds in grains by PCR. Appl. Environ. Microb., 62: 3270-3273.
PMid:8795215 PMCid:PMC168121
- Sigler, L. and P.E. Verweij, 2003. Aspergillus, Fusarium and other opportunitistic moniliaceous fungi. In: Murray, P.R., E.J. Baron, J.H. Jorgensen, M.A. Pfaller and R.H. Yolken (Ed.), 8th Edn., Manual of Clinical Microbiology. ASM Press, Washington, DC, pp: 1726-1760.
-
Thompson, J.D., T.J. Gibson, F. Plewniak, F. Jeanmougin and D.G. Higgins, 1997. The CLUSTAL X windows interface: Flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucl. Acid. Res., 25: 4876-4882.
CrossRef PMid:9396791 PMCid:PMC147148
- Trail, F., N. Muhami, R. Mehigh, R. Zhou and I. Link, 1995. Physical and transcriptional map of an aflatoxin gene cluster in Aspergillus parasiticus and functional disruption of a gene involved early in aflatoxin pathway. Appl. Environ. Microb., 61: 2665-2673.
PMid:7618880 PMCid:PMC167540
- Wald, A., W. Leisenring, J.A. van Burik and R.A. Bowden, 1997. Epidemiology of Aspergillus infections in a large cohort of patients undergoing bone marrow transplantation. J. Infect. Dis., 175: 1459-1466.
CrossRef PMid:9180187
- WHO, 2008. World Health Statistics. World Health Organization, Geneva.
- Zong Lee, C., G. Yuh Liou and G. Fang Yuan, 2006. Comparison of the aflR gene sequences of strains in Aspergillus section Flavi. Taiwan Microbiol., 152: 161-170.
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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The authors have no competing interests.
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