Skip to main content
ARS Home » Northeast Area » Ithaca, New York » Robert W. Holley Center for Agriculture & Health » Emerging Pests and Pathogens Research » People & Locations » John Ramsey (John)
John Sawyer Ramsey (John)
Emerging Pests and Pathogens Research
Research Molecular Biologist

Phone: (607) 254-6052
Fax:

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Real-time library search (RTLS) triggered MS3 facilitates in-depth cannabinoid profile in different hemp genotypes and identification of novel cannabinoids - (Abstract Only)
Laser capture of tomato pericarp tissues for microscale carotenoid analysis by supercritical fluid chromatography Reprint Icon - (Peer Reviewed Journal)
Ramsey, J.S., Fish, T., Thannhauser, T.W., Giovannoni, J.J. 2022. Laser capture of tomato pericarp tissues for microscale carotenoid analysis by supercritical fluid chromatography. Methods in Enzymology. 670:213-233. https://doi.org/10.1016/bs.mie.2022.01.014.
Quantitative isotope-labeled cross-linker proteomics reveals developmental variation in protein interactions and post-translational modifications in diaphorina citri, the citrus greening insect vector Reprint Icon - (Peer Reviewed Journal)
Ramsey, J.S., Zhong, X., Saha, S., Chavez, J., Johnson, R., Mahoney, J., Keller, A., Moulton, K., Mueller, L., Hall, D.G., Maccoss, M., Bruce, J., Heck, M.L. 2022. Quantitative isotope-labeled cross-linker proteomics reveals developmental variation in protein interactions and post-translational modifications in diaphorina citri, the citrus greening insect vector. ACS Agricultural Science and Technology. 2(3):486-500. https://doi.org/10.1021/acsagscitech.1c00264.
Host plant adaptation drives changes in Diaphorina citri proteome regulation, proteoform expression and transmission of Candidatus Liberibacter asiaticus, the citrus greening pathogen Reprint Icon - (Peer Reviewed Journal)
Ramsey, J.S., Ammar, D., Mahoney, J.E., Rivera, K., Johnson, R., Igwe, D.O., Thannhauser, T.W., Maccoss, M.J., Hall, D.G., Heck, M.L. 2022. Host plant adaptation drives changes in Diaphorina citri proteome regulation, proteoform expression and transmission of Candidatus Liberibacter asiaticus, the citrus greening pathogen. Phytopathology. 112:101-115. https://doi.org/10.1094/phyto-06-21-0275-r.
Proteomic polyphenism in color morphotypes of diaphorina citri, insect vector of citrus greening disease Reprint Icon - (Peer Reviewed Journal)
Hosseinzadeh, S., Higgins, S.A., Ramsey, J.S., Howe, K.J., Griggs, M., Castrillo, L.A., Heck, M.L. 2021. Proteomic polyphenism in color morphotypes of diaphorina citri, insect vector of citrus greening disease. Journal of Proteome Research. 20(5):2851-2866. https://doi.org/10.1021/acs.jproteome.1c00089.
Natural products: potential for HLB control - (Peer Reviewed Journal)
Development on Citrus medica infected with ‘Candidatus Liberibacter asiaticus’ has sex-specific and -nonspecific impacts on adult Diaphorina citri and its endosymbionts Reprint Icon - (Peer Reviewed Journal)
Coates, L.C., Mahoney, J., Ramsey, J.S., Warick, E., Johnson, R., Maccoss, M., Krasnoff, S., Howe, K.J., Moulton, K.M., Saha, S., Mueller, L., Hall, D.G., Shatters, R.G., Heck, M.L., Slupsky, C. 2020. Development on Citrus medica infected with ‘Candidatus Liberibacter asiaticus’ has sex-specific and -nonspecific impacts on adult Diaphorina citri and its endosymbionts. PLOS ONE. 15(1):e0239771. https://doi.org/10.1371/journal.pone.0239771.
Longitudinal transcriptomic, proteomic, and metabolomic analysis of Citrus limon response to graft inoculation by ‘Candidatus Liberibacter asiaticus’ Reprint Icon - (Peer Reviewed Journal)
Ramsey, J.S., Chin, E., Chavez, J., Saha, S., Mischuk, D., Mahoney, J., Mohr, J., Robison, F., Godfrey, K., Levesque, C., Foster, L., Xu, Y., Strickler, S., Fernandez, N., Polek, M., Giovannoni, J.J., Mueller, L., Slupsky, C., Bruce, J., Heck, M.L. 2020. Longitudinal transcriptomic, proteomic, and metabolomic analysis of Citrus limon response to graft inoculation by ‘Candidatus Liberibacter asiaticus’. Journal of Proteome Research. 19:2247-2263. https://doi.org/10.1021/acs.jproteome.9b00802.
Longitudinal transcriptomic, proteomic, and metabolomic analyses of Citrus sinensis (L.) Osbeck graft-inoculated with ‘Candidatus Liberibacter asiaticus’ Reprint Icon - (Peer Reviewed Journal)
Chin, E., Ramsey, J.S., Mishchuk, D.O., Saha, S., Mitrovic, E., Chavez, J.D., Howe, K.J., Zhong, X., Polek, M., Godfrey, K.E., Mueller, L.A., Bruce, J.E., Heck, M.L., Slupsky, C.M. 2019. Longitudinal transcriptomic, proteomic, and metabolomic analyses of Citrus sinensis (L.) Osbeck graft-inoculated with ‘Candidatus Liberibacter asiaticus’. Journal of Proteome Research. 19(2):719-732. https://doi.org/10.1021/acs.jproteome.9b00616.
Color morphology of Diaphorina citri influences interactions with its bacterial endosymbionts and 'Candidatus Liberibacter asiaticus' Reprint Icon - (Peer Reviewed Journal)
Hosseinzadeh, S., Ramsey, J.S., Mann, M., Bennett, L., Hunter, W.B., Shams-Bakhsh, M., Hall, D.G., Heck, M.L. 2019. Hemocyanin protein expression is correlated with color morphology and immunity to ‘Candidatus Liberibacter asiaticus’ in the Huanglongbing insect vector, Diaphorina citri. PLoS One. 14(5):e0216599. https://doi.org/10.1371/journal.pone.0216599.
‘Candidatus Liberibacter asiaticus’ minimally alters expression of immunity and metabolism proteins in the hemolymph of Diaphorina citri, the insect vector of Huanglongbing Reprint Icon - (Peer Reviewed Journal)
Kruse, A., Ramsey, J.S., Johnson, R., Hall, D.G., MacCoss, M., Heck, M.L. 2018. ‘Candidatus Liberibacter asiaticus’ minimally alters expression of immunity and metabolism proteins in the hemolymph of Diaphorina citri, the insect vector of Huanglongbing. Journal of Proteome Research. 17(9):2995-3011. https://doi.org/10.1021/acs.jproteome.8b00183.
Crystal structure of diaphorin methanol monosolvaate isolated from diaphorina citri kuwayama, the insect vector of citrus greening disease Reprint Icon - (Peer Reviewed Journal)
Szebenyi, D., Kriksunov, I., Howe, K.J., Ramsey, J.S., Hall, D.G., Heck, M.L., Krasnoff, S. 2018. Crystal structure of diaphorin methanol monosolvaate isolated from diaphorina citri kuwayama, the insect vector of citrus greening disease. Acta Crystallographica Secion E. 74(Pt 4):445-449. https://doi.org/10.1107/S2056989018002992.
Protein interaction networks at the host-microbe interface in Diaphorina citri, the insect vector of the citrus greening pathogen Reprint Icon - (Proceedings)
Ramsey, J.S., Chavez, J., Johnson, R., Mahoney, J., Mohr, J., Robison, F., Zhong, X., Hall, D.G., Maccoss, M., Bruce, J., Heck, M.L. 2017. Protein interaction networks at the host-microbe interface in Diaphorina citri, the insect vector of the citrus greening pathogen. International Research Conference on Huanglongbing. 4(2):160545. https://doi.org/10.1098/rsos.160545.
Protein interaction networks at the host-microbe interface in Diaphorina citri, the insect vector of the citrus greening pathogen - (Peer Reviewed Journal)
Ramsey, J.S., Chavez, J., Johnson, R., Mahoney, J., Mohr, J., Robison, F., Zhong, X., Hall, D.G., Maccoss, M., Bruce, J., Cilia, M. 2017. Protein interaction networks at the host-microbe interface in Diaphorina citri, the insect vector of the citrus greening pathogen. Royal Society Open Science. https://doi.org/10.1098/rsos.160545.
Visualization of host-polerovirus interaction topologies using Protein Interaction Reporter technology - (Peer Reviewed Journal)
Deblasio, S.L., Chavez, J., Alexander, M., Ramsey, J.S., Eng, J., Mahoney, J., Gray, S.M., Bruce, J., Cilia, M. 2015. Visualization of host-polerovirus interaction topologies using Protein Interaction Reporter technology. Journal of Virology. 90:1973-1987.
Metabolic interplay between the Asian citrus psyllid and its Profftella symbiont: An Achilles’ heel of the citrus greening insect vector - (Peer Reviewed Journal)
Ramsey, J.S., Johnson, R., Hoki, J., Kruse, A., Mahoney, J., Hilf, M.E., Hunter, W.B., Hall, D.G., Shroeder, F., Maccoss, M., Cilia, M. 2015. Metabolic interplay between the Asian citrus psyllid and its Profftella symbiont: An Achilles’ heel of the citrus greening insect vector. PLoS One. DOI: 10.1371/journal.pone.0140826.