Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics

Christopher Wallis
Crop Diseases, Pests and Genetics
Research Plant Pathologist

Phone: (559) 596-2805
Fax: (559) 596-2921
9611 S. RIVERBEND AVE.
PARLIER, CA, 93648

Projects
Epidemiology and Management of Pierce's Disease and Other Maladies of Grape
Appropriated (D)
  Accession Number: 422946

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Differences between Helianthus winteri and Helianthus annuus are deeper than physiology - (Abstract Only)
Constable, J.V., Stebbins, J., Winchell, C., Wallis, C.M. 2014. Differences between Helianthus winteri and Helianthus annuus are deeper than physiology. Ecological Society of America Abstracts. PS 57-121.
Coming Soon: CADRE (Career Advancement and Development Resources and Education) website for all APS members - (Other)
Wallis, C.M., Ward-Gauthier, N. 2014. Coming Soon: CADRE (Career Advancement and Development Resources and Education) website for all APS members. Phytopathology News. 48:119.
Effects of a selenium-laden soil amendment on grapevine metabolism and progression of Pierce’s disease - (Abstract Only)
Wallis, C.M., Centofanti, T., Banuelos, G.S. 2014. Effects of a selenium-laden soil amendment on grapevine metabolism and progression of Pierce’s disease. American Phytopathological Society Abstracts. 224-P.
Potatoes tolerant of ‘Candidatus Liberibacter solanacearum’ infection do not undergo changes in tuber physiology associated with zebra chip disease - (Abstract Only)
Wallis, C.M., Munyaneza, J.E., Novy, R.G. 2014. Potatoes tolerant of ‘Candidatus Liberibacter solanacearum’ infection do not undergo changes in tuber physiology associated with zebra chip disease. American Phytopathological Society Abstracts. 190-O.
Pyrosequencing analyses of endophytic bacterial populations in tomato leaves infected by ‘Candidatus Liberibacter solanacearum’ - (Abstract Only) - (09-May-14)
Attraction of the egg parasitoid, Gonatocerus ashmeadi Girault (Hymenoptera: Mymaridae) to synthetic formulation of a (E)-ß-ocimene and (E,E)-a-farnesene mixture - (Peer Reviewed Journal)
Krugner, R., Wallis, C.M., Walse, S.S. 2014. Attraction of the egg parasitoid, Gonatocerus ashmeadi Girault (Hymenoptera: Mymaridae) to synthetic formulation of a (E)-ß-ocimene and (E,E)-a-farnesene mixture. Biological Control. 77:23-28.
Structure assignment and H/D-exchange behavior of several Glycosylated Polyphenols - (Peer Reviewed Journal)
Franz, A.H., Serebnitskaya, L., Gudial, G., Wallis, C.M. 2014. Structure assignment and H/D-exchange behavior of several Glycosylated Polyphenols. Archives for Organic Chemistry (ARKIVOC). 2014:94-122.
Examining the role of tuber biochemistry in the development of zebra chip in stored potato tubers - (Proceedings)
Wallis, C.M., Rashed, A., Workneh, F., Rush, C.M. 2014. Examining the role of tuber biochemistry in the development of zebra chip in stored potato tubers. In: Workneh F, Rush CM, eds., Proc. 13th Annu. SCRI Zebra Chip Reporting Session. Fredric Printing, CO. pp. 153-157.
Potato psyllid vector density and zebra chip disease - (Proceedings)
Rashed, A., Wallis, C.M., Workneh, F., Paetzold, L., Rush, C.M. 2014. Potato psyllid vector density and zebra chip disease. In: Workneh F, Rush CM, eds., Proc 13th Annual SCRI Zebra Chip Reporting Session. Fredric Printing, Aurora, CO. pp. 136-140.
Increase of “Candidatus Liberibacter solanacearum” titer in aging tomato leaves and pyrosequencing analyses of endophyte populations - (Proceedings) - (01-Feb-14)
Tri-trophic movement of carotenoid pigments from host plant to the parasitoid of a caterpillar - (Peer Reviewed Journal)
Wang, X., Wallis, C.M., Daane, K.M. 2014. Tri-trophic movement of carotenoid pigments from host plant to the parasitoid of a caterpillar. Journal of Insect Physiology. 61:58-65.
Rootstock effects on progression of Pierce's disease symptom development and possible mechanisms - (Abstract Only)
Wallis, C.M., Wallingford, A.K., Chen, J. 2013. Rootstock effects on progression of Pierce's disease symptom development and possible mechanisms. In: Proceedings of the Pierce's Disease Research Symposium, December 16-18, 2013, Sacramento, California. p. 214.
Grapevine rootstock effects on scion sap phenolic levels, resistance to Xylella fastidiosa infection, and progression of Pierce’s disease - (Peer Reviewed Journal)
Wallis, C.M., Wallingford, A.K., Chen, J. 2013. Grapevine rootstock effects on scion sap phenolic levels, resistance to Xylella fastidiosa infection, and progression of Pierce’s disease. Frontiers in Plant Physiology. 4:502. http://dx.doi.org/10.3389/fpls.2013.00502.
The effects of potato psyllid vector density, movement behavior, and host choice on pathogen spread and zebra chip disease severity - (Abstract Only)
Rashed, A., Wallis, C.M., Paetzold, L., Workneh, F., Rush, C. 2013. The effects of potato psyllid vector density, movement behavior, and host choice on pathogen spread and zebra chip disease severity. Entomological Society of America Annual Meeting. Available: http://esa.confex.com/esa/2013/webprogram/Paper76925.html.
Similarities and differences in physiological responses to ‘Candidatus Liberibacter solanacearum’ infection among different potato cultivars - (Peer Reviewed Journal)
Wallis, C.M., Rashad, A., Wallingford, A.K., Paetzold, L., Workneh, F., Rush, C.M. 2014. Similarities and differences in physiological responses to ‘Candidatus Liberibacter solanacearum’ infection among different potato cultivars. Phytopathology. 104:126-133.
Xylella fastidiosa infection effects on xylem sap and tissue phenolics in different grapevine cultivars - (Peer Reviewed Journal)
Wallis, C.M., Wallingford, A.K., Chen, J. 2013. Xylella fastidiosa infection effects on xylem sap and tissue phenolics in different grapevine cultivars. Physiological and Molecular Plant Pathology. 84:28-35.
2013 Schroth Faces of the Future Symposium to Highlight Early Career Professionals in Mycology - (Trade Journal)
Wallis, C.M. 2013. 2013 Schroth faces of the future symposium to highlight early career professionals in Mycology. Phytopathology News. 47:95.
Effects of grapevine sap phenolics on the in vitro growth of Xylella fastidiosa - (Abstract Only)
Wallis, C.M., Wallingford, A.K. 2013. Effects of grapevine sap phenolics on the in vitro growth of Xylella fastidiosa. American Phytopathological Society Abstracts. 103(S2):154.
Effects of rootstock on Xylella fastidiosa infection and grapevine sap phenolics - (Abstract Only)
Wallingford, A.K., Wallis, C.M., Chen, J. 2013. Effects of rootstock on Xylella fastidiosa infection and grapevine sap phenolics. American Phytopathological Society Abstracts. 103(S2):154-155.
Relationship of potato biochemical responses to ‘Candidatus Liberibacter solanacearum’, causal agent of zebra chip, to disease progression - (Abstract Only)
Wallis, C.M., Rashed, A., Wallingford, A.K., Rush, C.M. 2013. Relationship of potato biochemical responses to ‘Candidatus Liberibacter solanacearum’, causal agent of zebra chip, to disease progression. American Phytopathological Society Abstracts. 103(S2):154.
Scanning electron microscopy and in vitro cultivation of endophytic bacteria from potato tubers related to Zebra Chip disease - (Peer Reviewed Journal)
Liu, Q., Chen, J., Munyaneza, J.E., Civerolo, E.L., Wallis, C.M. 2013. Scanning electron microscopy and in vitro cultivation of endophytic bacteria from potato tubers related to Zebra Chip disease. Canadian Journal of Plant Pathology. 35:192-199.
Different potato cultivars may vary in zebra chip symptoms and associated physiological changes when infected by 'Candidatus Liberibacter solanacearum' - (Proceedings)
Wallis, C.M., Rashed, A., Wallingford, A.K., Rush, C.M. 2013. Different potato cultivars may vary in zebra chip symptoms and associated physiological changes when infected by 'Candidatus Liberibacter solanacearum'. Symposium Proceedings. p. 89-93.
Update on the potato variety screening for zebra chip resistance trial - (Proceedings)
Munyaneza, J.E., Buchman, J.L., Bester, G., Novy, R.G., Miller, C., Van Hest, P., Nordgaard, J., Yilma, S., Wallis, C.M. 2013. Update on the potato variety screening for zebra chip resistance trial. In: Proceedings of the 12th Annual SCRI Zebra Chip Reporting Session, ed. F.Workneh, A.Rashed, and C.M. Rush, San Antonio, TX (October 30-November 2, 2012. pp 122-124.
Zebra Chip disease and potato biochemistry: Tuber physiological changes in response to ‘Candidatus Liberibacter solanacearum’ infection over time - (Peer Reviewed Journal)
Rashed, A., Wallis, C.M., Paetzold, L., Workneh, F., Rush, C.M. 2013. Zebra Chip disease and potato biochemistry: Tuber physiological changes in response to ‘Candidatus Liberibacter solanacearum’ infection over time. Phytopathology. 103:419-426.
Induction of phenolic compounds in response to Xylella fastidiosa infection in five different grapevine cultivars - (Abstract Only)
Wallis, C.M., Wallingford, A.K., Chen, J. 2012. Induction of phenolic compounds in response to Xylella fastidiosa infection in five different grapevine cultivars. In: Esser, T., Randhawa, R. [eds.], Proceedings, 2012 Pierce's Disease Research Symposium. California Department of Food and Agriculture, Sacramento, CA pp. 253.
Evaluation of grapevine as a host for the glassy-winged sharpshooter - (Abstract Only)
Sisterson, M.S., Krugner, R., Wallis, C.M. 2012. Evaluation of grapevine as a host for the glassy-winged sharpshooter. In: Pierce's Disease Research Progress Reports, California Department of Food and Agriculture. pp 12.
Plant defenses and climate change: doom or destiny for the lodgepole pine? - (Trade Journal)
Lewis, K.J., Wallis, C.M. 2012. Plant defenses and climate change: doom or destiny for the lodgepole pine? Trade Journal Publication. 19(4):10-11.
Grapevine phenolics in xylem sap and tissues are significantly altered during infection by Xylella fastidiosa - (Peer Reviewed Journal)
Wallis, C.M., Chen, J. 2012. Grapevine phenolics in xylem sap and tissues are significantly altered during infection by Xylella fastidiosa. Phytopathology. 102:816-826.
Grapevines undergo varying shifts in secondary metabolic profiles when infected with Xylella fastidiosa - (Abstract Only)
Wallis, C.M., Chen, J. 2012. Grapevines undergo varying shifts in secondary metabolic profiles when infected with Xylella fastidiosa. Phytopathology. 102:S4.129.
Large-scale shifts in potato (Solanum tuberosum) tuber physiology occur following infection by ‘Candidatus Liberibacter solanacearum - (Abstract Only)
Wallis, C.M., Rashed, A., Rush, C.M. 2012. Large-scale shifts in potato (Solanum tuberosum) tuber physiology occur following infection by ‘Candidatus Liberibacter solanacearum. Phytopathology. 102:S4.129.
Zebra chip-diseased potato tubers are characterized by increased levels of host secondary metabolites, amino acids, and defense-related proteins - (Peer Reviewed Journal)
Wallis, C.M., Chen, J., Civerolo, E.L. 2012. Zebra chip-diseased potato tubers are characterized by increased levels of host secondary metabolites, amino acids, and defense-related proteins. Physiological and Molecular Plant Pathology. Available: http://dx.doi.org/10.1016/j.pmpp.2012.02.001
Xylella fastidiosa infection of grapevines affects xylem levels of phenolic compounds and pathogenesis-related proteins - (Abstract Only)
Wallis, C.M., Chen, J., Sisterson, M.S. 2011. Xylella fastidiosa infection of grapevines affects xylem levels of phenolic compounds and pathogenesis-related proteins. CDFA Pierce's Disease Control Program Research Symposium. p.22.
Zebra chip symptoms are associated with increased phenolic, pathogenesis-related protein, and amino acid levels - (Proceedings)
Wallis, C.M., Chen, J. 2012. Zebra chip symptoms are associated with increased phenolic, pathogenesis-related protein, and amino acid levels. In: Workneh F. Rashed A. Rush CM (eds). Proceedings of the 11th annual SCRI zebra chip reporting session. Fredric Printing, Aurora, NY. p.159-162.
The effects of Zebra Chip disease development and bacterial titer on biochemical properties in relation to the time of infection - (Proceedings)
Rashed, A., Wallis, C.M., Simmons, A., Paetzold, L., Workneh, F., Rush, C.M. 2012. The effects of Zebra Chip disease development and bacterial titer on biochemical properties in relation to the time of infection. In: Workneh F. Rashed A. Rush CM (eds). Proceedings of the 11th annual SCRI zebra chip reporting session. Fredric Printing, Aurora, NY. p.65-69.
Zebra chip disease severity and ‘Candidatus Liberibacter solanacearum’ titer load of the potato hosts inoculated throughout the field season - (Proceedings)
Rashad, A., Workneh, F., Paetzold, L., Wallis, C.M., Rush, C.M. 2012. Zebra chip disease severity and ‘Candidatus Liberibacter solanacearum’ titer load of the potato hosts inoculated throughout the field season. In: Workneh F. Rashed A. Rush CM (eds). Proceedings of the 11th annual SCRI zebra chip reporting session. Fredric Printing, Aurora, NY. p.27-31.
Glassy-winged sharpshooter excreta production and egg maturation on grapevines - (Abstract Only)
Sisterson, M.S., Wallis, C.M. 2011. Glassy-winged sharpshooter excreta production and egg maturation on grapevines. CDFA Pierce's Disease Control Program Research Symposium, Dec 13-15, 2011, Sacramento, CA. Available: http://www.cdfa.ca.gov/pdcp/Documents/2011_Proc.pdf
Ecosystem, location, and climate effects on foliar secondary metabolites of lodgepole pine populations from central British Columbia. - (Peer Reviewed Journal)
Wallis, C.M., Huber, D.P., Lewis, K.J. 2011. Ecosystem, location, and climate effects on foliar secondary metabolites of lodgepole pine populations from central British Columbia. Journal of Chemical Ecology. 37(6):607-621.
Grape hosts infested with glassy-winged sharpshooters produce volatile compounds which may attract egg parasitoids - (Abstract Only)
Wallis, C.M., Krugner, R., Walse, S.S. 2011. Grape hosts infested with glassy-winged sharpshooters produce volatile compounds which may attract egg parasitoids. Phytopathology 101:S184.
Zebra chip disease symptoms are positively associated with pathogenesis-related protein activity and phenolic compound levels in tubers - (Abstract Only)
Wallis, C.M., Chen, J. 2011. Zebra chip disease symptoms are positively associated with pathogenesis-related protein activity and phenolic compound levels in tubers. Phytopathology. 101:S184.
Xylella fastidiosa infection of grapevines affects host secondary metabolite and defense-related protein levels within xylem - (Abstract Only)
Wallis, C.M., Sisterson, M.S. 2011. Xylella fastidiosa infection of grapevines affects host secondary metabolite and defense-related protein levels within xylem. Phytopathology. 101:S185.
Glassy-winged sharpshooter infestations induce grape hosts to produce volatile compounds which may attract egg parasitoids - (Proceedings)
Wallis, C.M., Krugner, R., Walse, S.S. 2010. Glassy-winged sharpshooter infestations induce grape hosts to produce volatile compounds which may attract egg parasitoids. CDFA Pierce's Disease Control Program Research Symposium, Dec 15-17, 2010, San Diego, California. p.51.
Lodgepole pine provenances differ in chemical defense capacities against foliage and stem diseases Reprint Icon - (Peer Reviewed Journal)
Wallis, C.M., Reich, R., Lewis, K.J., Huber, D.P. 2010. Lodgepole pine provenances differ in chemical defense capacities against foliage and stem diseases. Canadian Journal of Forest Research. 40:2333-2344.
Do climate and outbreak frequency affect levels of foliar phytochemistry in different lodgepole pine (Pinus contorta) stands? Reprint Icon - (Abstract Only)
Wallis, C.M., Huber, D.P., Lewis, K.J. 2010. Do climate and outbreak frequency affect levels of foliar phytochemistry in different lodgepole pine (Pinus contorta) stands?. Phytopathology. 100:S132.
Last Modified: 10/30/2014
Footer Content Back to Top of Page