Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics

Leslie L Scharfenstein (Les)
Food and Feed Safety Research
Molecular Biologist

Phone: (504) 286-4374
Fax: (504) 286-4419
Room 2104

1100 ROBERT E. LEE BLVD.
BLDG 001 SRRC
NEW ORLEANS , LA 70124


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
The effect of 2-phenylethanol treatment on Aspergillus flavus transcriptome -
Chang, P-K., Hua, S.T., Sarreal, S.L., Scharfenstein, L.L., Li, R.W. 2015. The effect of 2-phenylethanol treatment on Aspergillus flavus transcriptome. National Center for Biotechnology Information (NCBI). Accession: SRP056528.
High sequence variations in the region containing genes encoding a cellular morphogenesis protein and the repressor of sexual development help to reveal origins of Aspergillus oryzae Reprint Icon -
Chang, P.-K., Scharfenstein, L.L., Solorzano, C.D., Abbas, H.K., Hua, S.-S. T., Jones, W.A., Zablotowicz, R.M. 2015. High sequence variations in the region containing genes encoding a cellular morphogenesis protein and the repressor of sexual development help to reveal origins of Aspergillus oryzae. International Journal of Food Microbiology. 200:66-71.
Aspergillus flavus Blast2GO gene ontology database: elevated growth temperature alters amino acid metabolism -
Chang, P-K., Scharfenstein, L.L. 2014. Aspergillus flavus Blast2GO gene ontology database: elevated growth temperature alters amino acid metabolism. Journal of Genetics and Genome Research. 1:005.
Lack of aflatoxin production by Aspergillus flavus on a resistant peanut line is associated with delayed expression of aflatoxin genes -
Zhang, H., Scharfenstein, L.L., Carter Wientjes, C.H., Chang, P., Zhang, D., Meng, X., Yu, J. 2015. Lack of aflatoxin production by Aspergillus flavus on a resistant peanut line is associated with delayed expression of aflatoxin genes. World Mycotoxin Journal. 8(3):335-340.
Peanut resistant gene expression in response to Aspergillus flavus infection during seed germination -
Zhang, H., Scharfenstein, L.L., Zhang, D., Chang, P., Montalbano, B.G., Guo, B., Meng, X., Yu, J. 2014. Peanut resistant gene expression in response to Aspergillus flavus infection during seed germination. Journal of Phytopathology. 163(3):212-221.
Transcriptomic profiles of Aspergillus flavus CA42, a strain that produces small sclerotia, by decanal treatment and after recovery -
Chang, P.-K., Scharfenstein, L.L., Mack, B.M., Yu, J., Ehrlich, K. 2014. Transcriptomic profiles of Aspergillus flavus CA42, a strain that produces small sclerotia, by decanal treatment and after recovery. Fungal Genetics and Biology. 68:39-47.
Transcriptomic profiling of decanal effects on Aspergillus flavus gene expression in development and secondary metabolism -
Chang, P-K., Scharfenstein, L.L., Yu, J., Mack, B.M., Ehrlich, K.C., Losada, L., Nierman, W.C., Bhatnagar, D. 2014. Transcriptomic profiling of decanal effects on Aspergillus flavus gene expression in development and secondary metabolism. National Center for Biotechnology Information (NCBI). Accession: SRX471362.
Aspergillus flavus VelB acts distinctly from VeA in conidiation and may coordinate with FluG to modulate sclerotial production -
Chang, P-K., Scharfenstein, L.L., Li, P., Ehrlich, K. 2013. Aspergillus flavus VelB acts distinctly from VeA in conidiation and may coordinate with FluG to modulate sclerotial production. Fungal Genetics and Biology. 58-59:71-79.
Deletion of the Aspergillus flavus orthologue of A. nidulans fluG reduces conidiation and promotes production of sclerotia but does not abolish aflatoxin biosynthesis -
Chang, P-K., Scharfenstein, L.L., Mack, B.M., Ehrlich, K. 2012. Deletion of the Aspergillus flavus orthologue of A. nidulans fluG reduces conidiation and promotes production of sclerotia but does not abolish aflatoxin biosynthesis. Applied and Environmental Microbiology. 78(21):7557-7563.
Identification of genetic defects in the atoxigenic biocontrol strain Aspergillus flavus K49 reveals the presence of a competitive recombinant group in field populations Reprint Icon -
Chang, P.-K., Abbas, H.K., Weaver, M.A., Ehrlich, K., Scharfenstein, L.L., Cotty, P.J. 2012. Identification of genetic defects in the atoxigenic biocontrol strain Aspergillus flavus K49 reveals the presence of a competitive recombinant group in field populations. International Journal of Food Microbiology. 154:192-196.
Effects of laeA deletion on Aspergillus flavus conidial development and hydrophobicity may contribute to loss of aflatoxin production -
Chang, P.-K., Scharfenstein, L.L., Ehrlich, K., Wei, Q., Bhatnagar, D., Ingber, B.F. 2012. Effects of laeA deletion on Aspergillus flavus conidial development and hydrophobicity may contribute to loss of aflatoxin production. Fungal Biology. 116:298-307.
Loss of msnA, a putative stress regulatory gene, in Aspergillus parasiticus and Aspergillus flavus increased production of conidia, aflatoxins and kojic acid -
Chang, P.-K., Scharfenstein, L.L., Luo, M., Mahoney, N.E., Molyneux, R.J., Yu, J., Brown, R.L., Campbell, B.C. 2011. Loss of msnA, a putative stress regulatory gene, in Aspergillus parasiticus and Aspergillus flavus increased production of conidia, aflatoxins and kojic acid. Toxins. 3:82-104.
HypC, the anthrone oxidase involved in aflatoxin biosynthesis -
Ehrlich, K., Li, P., Scharfenstein, L.L., Chang, P.-K. 2010. HypC, the anthrone oxidase involved in aflatoxin biosynthesis. Applied and Environmental Microbiology. 76(10):3374-3377.
Development and refinement of a high-efficiency gene-targeting system for Aspergillus flavus -
Chang, P.-K., Scharfenstein, L.L., Wei, Q., Bhatnagar, D. 2010. Development and refinement of a high-efficiency gene-targeting system for Aspergillus flavus. Journal of Microbiological Methods. 81:240-246.
Absence of the Aflatoxin Biosynthesis Gene, norA, allows accumulation of deoxyaflatoxin B1 in Aspergillus flavus cultures -
Ehrlich, K., Chang, P., Scharfenstein, L.L., Cary, J.W., Crawford, J.M., Townsend, C.A. 2010. Absence of the Aflatoxin Biosynthesis Gene, norA, allows accumulation of deoxyaflatoxin B1 in Aspergillus flavus cultures. FEMS Microbiology Letters. 305:65-70.
Are the Genes nadA and norB Involved in Formation of Aflatoxin G1 -
Ehrlich, K., Scharfenstein, L.L., Montalbano, B.G., Chang, P. 2008. Are the Genes nadA and norB Involved in Formation of Aflatoxin G1. International Journal of Molecular Sciences. 9:1717-1729.
Last Modified: 5/2/2016
Footer Content Back to Top of Page