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ARS Home » Southeast Area » New Orleans, Louisiana » Southern Regional Research Center » Food and Feed Safety Research » People & Locations » Matthew Lebar

Matthew Lebar
Food and Feed Safety Research
Chemist

Phone: (504) 286-4321
Fax:

1100 ROBERT E. LEE BLVD
NEW ORLEANS , LA 70179
Projects
Genetic and Environmental Factors Controlling Aflatoxin Biosynthesis
In-House Appropriated (D)
  Accession Number: 430859
Molecular and Environmental Factors Controlling Aflatoxin Reduction by Non-Toxigenic Aspergillus Strains
In-House Appropriated (D)
  Accession Number: 430863
Metabolic Profiling of the Aspergillus flavus-Maize Interaction to Identify Fungal Pathogenicity and Host Plant Resistance Factors
Non-Funded Cooperative Agreement (N)
  Accession Number: 435603

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Contribution of maize polyamine and amino acid metabolism toward resistance against Aspergillus flavus infection and aflatoxin production -
Majumdar, R., Minocha, R., Lebar, M.D., Rajasekaran, K., Long, S., Carter-Wientjes, C.H., Minocha, S., Cary, J.W. 2019. Contribution of maize polyamine and amino acid metabolism toward resistance against Aspergillus flavus infection and aflatoxin production. Frontiers in Plant Science. https://doi.org/10.3389/fpls.2019.00692.
Identification of a copper-transporting ATPase involved in biosynthesis of A. flavus conidial pigment -
Chang, P.-K., Scharfenstein, L.L., Mack, B.M., Wei, Q., Gilbert, M.K., Lebar, M.D., Cary, J.W. 2019. Identification of a copper-transporting ATPase involved in biosynthesis of A. flavus conidial pigment. Applied Microbiology and Biotechnology. 103:4889-4897. https://doi.org/10.1007/s00253-019-09820-0.
Targeting polyamine metabolism for control of fungal pathogenesis and increasing host resistance during the maize-Aspergillus flavus interaction -
The aspergillic acid biosynthetic gene cluster predicts neoaspergillic acid production in Aspergillus section Circumdati -
Aspergillus flavus secondary metabolites and their roles in fungal development, survival and virulence -
Host-induced silencing of Aspergillus flavus genes to control preharvest aflatoxin contamination in maize -
The role of extrolites secreted by nonaflatoxigenic Aspergillus flavus in biocontrol efficacy -
Moore, G.G., Lebar, M.D., Carter-Wientjes, C.H. 2018. The role of extrolites secreted by nonaflatoxigenic Aspergillus flavus in biocontrol efficacy. Journal of Applied Microbiology. 126:1257-1264. https://doi.org/10.1111/jam.14175.
Contribution of maize polyamine and amino acid metabolism towards resistance against Aspergillus flavus infection and aflatoxin production -
Whole genome comparison of Aspergillus flavus L-morphotype strain NRRL 3357 (type) and S-morphotype strain AF70 -
Gilbert, M.K., Mack, B.M., Moore, G.G., Downey, D.L., Lebar, M.D., Joarder, V., Losada, L., Yu, J., Nierman, W.C., Bhatnagar, D. 2018. Whole genome comparison of Aspergillus flavus L-morphotype strain NRRL 3357 (type) and S-morphotype strain AF70. PLoS One. 13(7):e0199169. https://doi.org/10.1371/journal.pone.0199169.
Identification and functional analysis of the aspergillic acid gene cluster in Aspergillus flavus -
Lebar, M.D., Cary, J.W., Majumdar, R., Carter-Wientjes, C.H., Mack, B.M., Wei, Q., Uka, V., De Saeger, S., Diana Di Mavungu, J. 2018. Identification and functional analysis of the aspergillic acid gene cluster in Aspergillus flavus. Fungal Genetics and Biology. 116:14-23.
Aspergillus flavus secondary metabolites: more than just aflatoxins -
Cary, J.W., Gilbert, M.K., Lebar, M.D., Majumdar, R., Calvo, A.M. 2018. Aspergillus flavus secondary metabolites: more than just aflatoxins. Food Safety. 6(1):7-32. https://doi.org/10.14252/foodsafetyfscj.2017024.
RNA interference-based silencing of the alpha-amylase (amy1) gene in Aspergillus flavus decreases fungal growth and aflatoxin production in maize kernels -
Gilbert, M.K., Majumdar, R., Rajasekaran, K., Chen, Z.-Y., Wei, Q., Sickler, C.M., Lebar, M.D., Cary, J.W., Frame, B.R., Wang, K. 2018. RNA interference-based silencing of the alpha-amylase (amy1) gene in Aspergillus flavus decreases fungal growth and aflatoxin production in maize kernels. Planta. 247:1465–1473. https://doi.org/10.1007/s00425-018-2875-0.
The Aspergillus flavus spermidine synthase (spds) gene, is required for normal development, aflatoxin production, and pathogenesis during infection of maize kernels -
Majumdar, R., Lebar, M.D., Mack, B.M., Minocha, R., Minocha, S., Carter-Wientjes, C.H., Sickler, C.M., Rajasekaran, K., Cary, J.W. 2018. The Aspergillus flavus spermidine synthase (spds) gene, is required for normal development, aflatoxin production, and pathogenesis during infection of maize kernels. Frontiers in Plant Science. 9:317. https://doi.org/10.3389/fpls.2018.00317.
Carbon dioxide mediates the response to temperature and water activity levels in Aspergillus flavus during infection of maize kernels -
Gilbert, M.K., Medina, A., Mack, B.M., Lebar, M.D., Rodriguez, A., Bhatnagar, D., Magan, N., Obrian, G., Payne, G. 2018. Carbon dioxide mediates the response to temperature and water activity levels in Aspergillus flavus during infection of maize kernels. Toxins. 10(1):5. https://doi.org/10.3390/toxins10010005.
The Aspergillus flavus homeobox gene, hbx1, is required for development and aflatoxin production -
Cary, J.W., Harris-Coward, P.Y., Scharfenstein, L.L., Mack, B.M., Chang, P.-K., Wei, Q., Lebar, M.D., Carter-Wientjes, C.H., Majumdar, R., Mitra, C., Banerjee, S., Chanda, A. 2017. The Aspergillus flavus homeobox gene, hbx1, is required for development and aflatoxin production. Toxins. 9(10):315. https://doi.org/10.3390/toxins9100315.
The pathogenesis-related maize seed (PRms) gene plays a role in resistance to Aspergillus flavus infection and aflatoxin contamination -
Majumdar, R., Rajasekaran, K., Sickler, C.M., Lebar, M.D., Musungu, B.M., Fakhoury, A.M., Payne, G.A., Geisler, M., Carter-Wientjes, C.H., Wei, Q., Bhatnagar, D., Cary, J.W. 2017. The pathogenesis-related maize seed (PRms) gene plays a role in resistance to Aspergillus flavus infection and aflatoxin contamination. Frontiers in Plant Science. 8:1758. https://doi.org/10.3389/fpls.2017.01758.
Effect of water activity, temperature, and carbon dioxide on the Aspergillus flavus transcriptome and aflatoxin B1 production -
Gilbert, M.K., Medina-Vaya, A., Mack, B.M., Lebar, M.D., Rodriguez, A., Bhatnagar, D., Magan, N., Obrian, G., Payne, G. 2017. Effect of water activity, temperature, and carbon dioxide on the Aspergillus flavus transcriptome and aflatoxin B1 production. National Center for Biotechnology Information (NCBI). Accession: PRJNA380582.