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Aaron J Sechler
Foreign Disease-Weed Science Research
Biologist

Phone: (301) 619-2232
Fax: (301) 619-2880
Room 221

1301 DITTO AVENUE
BLDG 1301
FORT DETRICK, MD 217025023

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Immunoreagents for development of a diagnostic assay specific for Rathayibacter toxicus Reprint Icon - (Peer Reviewed Journal)
Luster, D.G., Mcmahon, M.B., Carter, M.L., Sechler, A.J., Rogers, E.E., Schroeder, B.K., Murray, T.D. 2020. Immunoreagents for development of a diagnostic assay specific for Rathayibacter toxicus. Food and Agricultural Immunology. 31(1):231-242. https://doi.org/10.1080/09540105.2020.1714554.
The identification and conservation of tunicaminyluracil-related biosynthetic gene clusters in several Rathayibacter species collected from Australia, Africa, Eurasia and North America Reprint Icon - (Peer Reviewed Journal)
Tancos, M.A., Sechler, A.J., Davis, E.W., Chang, J.H., Schroeder, B.K., Murray, T.D., Rogers, E.E. 2020. The identification and conservation of tunicaminyluracil-related biosynthetic gene clusters in several Rathayibacter species collected from Australia, Africa, Eurasia and North America. Frontiers in Microbiology. 10:2914. https://doi.org/10.3389/fmicb.2019.02914.
Discovery of tunicamycin-related biosynthetic gene clusters in three Rathayibacter species, including one endemic to the Northwest U.S. (R. agropyri) - (Abstract Only)
Dual RNA-seq analyses of Rathayibacter toxicus and bacteriophage NCPPB3778 over a time course following infection - (Abstract Only)
Evolution of the U.S. biological select agent Rathayibacter toxicus - (Peer Reviewed Journal)
Davis, E.W., Tabima, J.F., Weisberg, A.J., Lopes, L.D., Wiseman, M.S., Wiseman, M.S., Pupko, T., Belcher, M.S., Sechler, A.J., Tancos, M.A., Schroeder, B.K., Murray, T.D., Luster, D.G., Schneider, W.L., Rogers, E.E., Andreote, F., Grunwald, N.J., Putman, M.L., Chang, J.H. 2018. Bacteriophage NCPPB3778 and a type I-E CRISPR drive the evolution of the U.S. biological select agent Rathayibacter toxicus. mBio. 9:e01280-18.
Rathayibacter agropyri (non O’Gara 1916) comb. nov., nom. rev., isolated from western wheatgrass (Pascopyrum smithii) Reprint Icon - (Peer Reviewed Journal)
Schroeder, B.K., Schneider, W.L., Luster, D.G., Sechler, A.J. 2018. Rathayibacter agropyri (non O’Gara 1916) comb. nov., nom. rev., isolated from western wheatgrass (Pascopyrum smithii). International Journal of Systematic and Evolutionary Microbiology. 68:1519–1525. https://doi.org/10.1099/ijsem.0.002708.
Partial proteome of the corynetoxin-producing Gram-positive bacterium, Rathayibacter toxicus Reprint Icon - (Peer Reviewed Journal)
Fennessey, C.M., McMahon, M.B., Sechler, A.J., Kaiser, J., Garrett, W.M., Tancos, M.A., Luster, D.G., Rogers, E.E., Schneider, W.L. 2018. Partial proteome of the corynetoxin-producing Gram-positive bacterium, Rathayibacter toxicus. Proteomics. 18:1700350. https://doi.org/10.1002/pmic.201700350.
Complete genome sequence of the Rathayibacter toxicus phage NCPPB3778 - (Peer Reviewed Journal)
Schneider, W.L., Sechler, A.J., Rogers, E.E. 2017. Complete genome sequence of the Rathayibacter toxicus phage NCPPB3778. Genome Announcements. 5(42):e00671-17. https://doi.org/10.1128/genomeA.00671-17.
Whole genome sequence of two Rathayibacter toxicus strains reveals a tunicamycin biosynthetic cluster similar to Streptomyces chartreusis - (Peer Reviewed Journal)
Sechler, A.J., Tancos, M.A., Schneider, D.J., King, J.G., Fennesey, C.M., Schroeder, B.K., Luster, D.G., Schneider, W.L., Rogers, E.E. 2017. Whole genome sequence of two Rathayibacter toxicus strains reveals a tunicamycin biosynthetic cluster similar to Streptomyces chartreusis. PLoS One. 12(8):e0183005.
Rathayibacter toxicus and bacterial head blight diseases of grasses ()
Murray, T.D., Schroeder, B.K., Schneider, W.L., Luster, D.G., Sechler, A.J., Rogers, E.E., Subbotin, S.A. 2017. Rathayibacter toxicus and bacterial head blight diseases of grasses. Phytopathology. 107:804-815.
Protein expression profiling of Rathayibacter toxicus using mass spectrometry - (Abstract Only)
Fennessey, C.M., Blanc, J., Sechler, A.J., Mcmahon, M.B., Garrett, W.M., Luster, D.G., Schneider, W.L. 2015. Protein expression profiling of Rathayibacter toxicus using mass spectrometry. Phytopathology. 105:S4:43.
Real-time PCR detection of sorghum ergot pathogens Claviceps africana, C. sorghi, and C. sorghicola - (Peer Reviewed Journal)
Tooley, P.W., Carras, M.M., Sechler, A.J., Rajasab, A.H. 2010. Real-time PCR detection of sorghum ergot pathogens Claviceps africana, C. sorghi, and C. sorghicola. Journal of Phytopathology. doi: 10.1111/j.1439-0434.2010.01683.x
The relevance of Murraya paniculata and related species as potential hosts and inoculum reservoirs of Candidatus Liberibacter asiaticus, causal agent of Huanglongbing (HLB) - (Peer Reviewed Journal)
Damsteegt, V.D., Postnikova, E.N., Stone, A.L., Kuhlmann, M., Wilson, C., Sechler, A.J., Schaad, N.W., Brlansky, R.H., Schneider, W.L. 2010. The relevance of Murraya paniculata and related species as potential hosts and inoculum reservoirs of Candidatus Liberibacter asiaticus, causal agent of Huanglongbing (HLB). Plant Disease. 94:528-533.
An improved method of DNA extraction from Diaphorina citri for HLB detection - (Abstract Only)
Postnikova, E.N., Stone, A.L., Wilson, C.M., Sherman, D.J., Sechler, A.J., Schuenzel, E., Schaad, N.W., Schneider, W.L., Damsteegt, V.D. 2009. An improved method of DNA extraction from Diaphorina citri for HLB detection. Phytopathology. 99:S104.
Preliminary evidence for mixed populations of Ca. Liberibacter species in Huanglongbing infections - (Abstract Only)
Postnikova, E.N., Stone, A.L., Wilson, C.M., Sherman, D.J., Sechler, A.J., Schuenzel, E., Schaad, N.W., Schneider, W.L., Damsteegt, V.D. 2009. Preliminary evidence for mixed populations of Ca. Liberibacter species in Huanglongbing infections. Phytopathology. 99:S205.
Rathayibacter iranicus isolated from asymptomatic wheat seeds in Turkey - (Peer Reviewed Journal)
Postnikova, E.N., Agarkova, I., Altundag, S., Eskandari, F., Sechler, A.J., Karahan, A., Vidaver, A.K., Schneider, W.L., Ozakman, M., Schaad, N.W. 2009. Rathayibacter iranicus isolated from asymptomatic wheat seeds in Turkey. Plant Pathology. 58:796.
Cultivation of Candidatus Liberibacter asiaticus and Ca. L. americanus associated with Huanglongbing - (Peer Reviewed Journal)
Sechler, A.J., Schuenzel, E., Cooke, P.H., Donnua, S., Thaveechai, N., Postnikova, E.N., Stone, A.L., Schneider, W.L., Damsteegt, V.D., Schaad, N.W. 2009. Cultivation of Candidatus Liberibacter asiaticus and Ca. L. americanus associated with Huanglongbing. Phytopathology. 99:480-486.
TRANSFER OF ACIDOVORAX AVENAE SUBSPECIES TO MESOTHERMOPHILUS AVENAE - (Peer Reviewed Journal)
Schaad, N.W., Postnikova, E.N., Claflin, L.E., Vidaver, A.K., Agarkova, I., Sechler, A.J., Ignatov, A., Ramundo, B.A. 2008. Transfer of acidovorax avenae subspecies to mesothermophilus avenae. Systematic and Applied Microbiology. 31:434-446.
Identification of bacterial plant pathogens using multilocus PCR and electrospray ionization-mass spectrometry (PCR/ESI-MS) - (Peer Reviewed Journal)
Postnikova, E.N., Baldwin, C., Whitehouse, C., Sechler, A.J., Schaad, N.W., Sampath, R., Harpin, V., Li, F., Melton, R., Blynn, L., Drader, J., Hofstadler, S., Schneider, W.L. 2008. Identification of bacterial plant pathogens using multilocus PCR and electrospray ionization-mass spectrometry (PCR/ESI-MS). Phytopathology. 98-11-1156-1164
First report of citrus canker caused by Xanthomonas citri in Somalia - (Peer Reviewed Journal)
Balestra, G.M., Sechler, A.J., Schuenzel, E., Schaad, N.W. 2008. First report of citrus canker caused by Xanthomonas citri in Somalia. Plant Disease. 92:981.
An improved assay for detection of Acidovorax avenae subsp. citrulli in watermelon and melon seed - (Peer Reviewed Journal)
Zhao, T., Feng, J., Sechler, A.J., Randhawa, P., Schaad, N.W. 2009. An improved assay for detection of Acidovorax avenae subsp. citrulli in watermelon and melon seed. Seed Science and Technology. 37:337-347.
First Report of Crown Gall Caused by Agrobacterium sp. on Diffuse Knapweed (Centaurea diffusa) - (Peer Reviewed Journal)
Eskandari, F., Bruckart, W.L., Schaad, N.W., Sechler, A.J., Postnikova, E.N., Caesar, A.J., Coombs, E. 2008. First Report of Crown Gall Caused by Agrobacterium sp. on Diffuse Knapweed (Centaurea diffusa). Plant Disease. 92:487.
Real-time PCR detection of sorghum ergot pathogens Claviceps africana, C. sorghi, and C. sorghicola - (Abstract Only)
Tooley, P.W., Carras, M.M., Sechler, A.J. 2008. Real-time PCR detection of sorghum ergot pathogens Claviceps africana, C. sorghi, and C. sorghicola. International Congress of Plant Pathology Abstracts and Proceedings. Journal of Plant Pathology. Vol. 90 (2, Supplement). 52.312.2008
Genetic diversity in populations of Xanthomonas campestris pv. camestris in cruciferous weeds in central coastal California - (Peer Reviewed Journal)
Ignatov, A., Sechler, A.J., Schuenzel, E., Agarkova, I.V., Vidaver, A.K., Oliver, B., Schaad, N.W. 2007. Genetic diversity in populations of Xanthomonas campestris pv. camestris in cruciferous weeds in central coastal California. Phytopathology. 97:803-812
GENETIC RELATEDNESS AMOUNG STRAINS OF ACIDOVORAX AVENAE SUBSPECIES AVENAE, CITRULLI AND CATTLEYAE - (Abstract Only)
ASSESSMENT OF MULTIPLE DISPLACEMENT AMPLIFICATION FOR INCREASING PCR SENSITIVITY - (Abstract Only)
GENETIC DIVERSITY AMONG STRAINS OF ACIDOVORAX AVENAE SUBSP. CITRULLI IN CHINA - (Abstract Only)
RECLASSIFICATION OF XANTHOMONAS SPECIES PATHOGENIC ON CITRUS - (Peer Reviewed Journal)
Schaad, N.W., Postnikova, E., Lacy, G., Sechler, A.J., Agarkova, I., Stromberg, P., Strombuer, V., Vidaver, A. 2005. Reclassification of xanthomonas species pathogenic on citrus. Systematic and Applied Microbiology. v. 28. p.494-518.