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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.)
Bacteriophage NCPPB3778 and a type I-E CRISPR drive the evolution of the U.S. biological select agent Rathayibacter toxicus -
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) -
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 -
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 -
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 -
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 -
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 -
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) -
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 -
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 -
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 -
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 -
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 -
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) -
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 -
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 -
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) -
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 -
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 -
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 -
ASSESSMENT OF MULTIPLE DISPLACEMENT AMPLIFICATION FOR INCREASING PCR SENSITIVITY -
GENETIC DIVERSITY AMONG STRAINS OF ACIDOVORAX AVENAE SUBSP. CITRULLI IN CHINA -
RECLASSIFICATION OF XANTHOMONAS SPECIES PATHOGENIC ON CITRUS -
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.