278 glutathione and oxidative stress. Plant Cell, Tissue and Organ Culture 43:137–145. Chai, H.B., and N. Doke. 1987. Systemic activation of O2 generating reaction, superoxide dismutase, and peroxidase in potato plants in relation to induction of systemic resistance to Phytophthora infestans. Annals of the Phytophthological Society of Japan 53:585–590. Christiansen, E., P. Karokene, A.A. Berryman, V.R. Franceschi, T. Krekling, F. Lieutier, A. Lonneborg, and H. Solheim. 1999. Mechani- cal injury and fungal infection induce acquired resistance in Norway spruce. Tree Physiology 19:399–403. Dalisay, R.F., and J.A. Kuc. 1995. Persistence of induced resistance and enhanced peroxidase and chitinase activities in cucumber plants. Physiological and Molecular Plant Pathology 47:315–327. Downer, J. 2007. Snake oil, horticultural myths, horticultural urban legends and persuaders in our industry. Arborist News 16:30–34. Enyedi, A.J., and I. Raskin. 1993. Induction of UDP-glucode: Salicylic acid glucosyl-transferase activity in tobacco mosaic virus-inoculated tobacco (nicotiana tabacum) leaves. Plant Physiology 101: 1375–1380. Fletcher, R.A., A. Gilley, N. Sankhla, and T.D. Davis. 2000. Triazoles as plant growth regulators and stress protectants. Horticultural Re- views 24:55–138. Franceschi, V.R., P. Karokene, T. Krekling, and E. Christiansen. 2000. Phloem parenchyma cells are involved in local and distant defense responses to fungal inoculation or bark-beetle attack in Norway spruce (Pinaceae). American Journal of Botany 87:314–326. Friedrich, L., K. Lawton, R. Wilhelm, P. Manser, N. Specker, M. Gut- Rella, B. Meier, S. Dincher, T. Staub, S. Uknes, J.P. Metraux, H. Kessmann, and J. Ryals. 1996. A bendzothiadiazole derivative in- duces systemic acquired resistance in tobacco. The Plant Journal 10:61–70. Gross, G.G. 1979. Recent advances in the chemistry and biochemistry of lignin, pp. 177–220. In: Swain, T., J.B. Harborne, and C.F. Van Sumere (Eds.). Biochemistry of Plant Phenolics, Recent Advances in Phytochemistry. Vol. 12. Plenum Press, New York, NY. Guest, D., and B. Grant. 1991. The complex action of phosphonates as antifungal agents. Biological Review 66:159–187. Hibbard, J.M., P. Richardson, R. Whitbread, and J.F. Farrar. 1996. Ef- fects of leaf age, basal meristem and infection with powdery mildew on photosynthesis in barley grown in 700 mol mol–1 CO2. The New Phytologist 134:317–325. Jackson, T.J., T. Burgess, I. Colquhoun, G.E. St, and J. Hardy. 2000. Action of the fungicide phosphite on Eucalyptus marginata inocu- lated with Phytophthora cinnamomi. Plant Pathology 49:147–154. Kessmann, H., T. Staub, C. Hofmann, T. Maetzke, J. Herzog, E. Ward, S. Uknes, and J. Ryals. 1994. Induction of systemic acquired disease resistance in plants by chemicals. Annual Review of Phytopathology 32:439–459. Kraus, T.E., and R.A. Fletcher. 1994. Paclobutrazol protects wheat seed- lings from heat and paraquat injury. Is detoxification of active oxygen involved? Plant and Cell Physiology 35:45–52. MacHardy, W.E., and M.J. Jeger. 1983. Integrating control measures for the management of primary apple scab. Protection Ecology 5: 103–125. McNeil, S.D., M.L. Nuccio, and A.D. Hanson. 1999. Betaines and re- lated osmoprotectants. Targets for metabolic engineering of stress resistance. Plant Physiology 120:945–949. Miller, J.S., N. Olson, L. Woodell, L.D. Porter, and S. Clayson. 2006. Post-harvest applications of zoxamide and phosphite for control of potato tuber rots caused by oomycetes at harvest. American Journal of Potato Research 83:269–278. Okey, E.N., and T.N. Sreenivan. 1996. Salicylic acid: A factor in sys- temic resistance of Caco to Phytophthora palmivora. Proceedings of the Brighton Crop Protection Conference. pp. 955–960. Percival, G.C. 2001. Induction of systemic acquired disease resistance in plants: Potential implications for disease management in urban for- estry. Journal of Arboriculture 27:181–193. ©2008 International Society of Arboriculture Percival and Haynes: Controlling Oak Powdery Mildew Rasmussen, J.B., R. Hammerschmidt, and M.N. Zook. 1991. Systemic induction of salicylic acid accumulation in cucumber after inoculation with Pseudomonas syringae pv syringae. Plant Physiology 97:1342–1347. Sabri, N., P.J. Dominy, and D.D. Clarke. 1997. The relative tolerances of wild and cultivated oats to infection by Erysiphe graminis f.sp. avanae: II. The effects of infection on photosynthesis and respiration. Physiological and Molecular Plant Pathology 50:321–335. Sparla, F., L. Rotino, M.C. Valgimigli, P. Pupillo, and P. Trost. 2004. Systemic resistance induced by benzothiadiazole in pear inoculated with the agent of fire blight (Erwinia amylovora). Scientia Horticul- turae 101:269–279. Sticher, L., B. Mauch-Mani, and J.P. Metraux. 1997. Systemic acquired resistance. Annual Review of Phytopathology 35:235–270. Van Lelyveld, L.J., and H.T. Brodrick. 1975. Enzymic responses of avocado leaves to Phytophthora root rot. Agroplantae 7:13–16. Van Loon, L.C. 1976. Systemic acquired resistance, peroxidase activity and lesion size in tobacco reacting hypersensitively to TMV. Physi- ological Plant Pathology 8:231–242. Vegetti, G.G., C. Conti, and P. Pesci. 1975. Changes in phenylalanine ammonia lyase, peroxidase and polyphenol oxidase during develop- ment of local necrotic lesions in pinto beans infected by alfalfa mo- saic virus. Phytopathologische Zeitschrift 84:153–171. Wilkinson, C.J., B.L. Shearer, T.J. Jackson, and G.E. St. J. Hardy. 2001. Variation in sensitivity of Western Australian isolates of Phytoph- thora cinnamomi to phosphite in vitro. Plant Pathology 50:83–89. Yancey, P.H. 1994. Compatible and counteracting solutes, pp. 81–109. In: Strange, K. (Ed.). Cellular and Molecular Physiology of Cell Volume Regulation. CRC Press, Boca Raton, FL. Zhang, P.G., J.C. Sutton, and R.A. Fletcher. 1994. Paclobutrazol pro- tects black spruce seedlings against predisposition to gray mold in- duced by high temperature and drought. Canadian Journal of Forest Research 24:1033–1038. Glynn Percival (corresponding author) University of Reading Biological Sciences Bartlett Tree Research Laboratory TOB2, 2 Earley Gate Whiteknights Berkshire Reading RG6 6AU, U.K.
[email protected] Ian Haynes Arboricultural Representative Bartlett Tree Experts Company Ltd. Windmill View Blackchurch, Rathcoole, County Dublin, Ireland
[email protected] Résumé. Un essai sur le terrain durant deux ans a été mené au moyen de chênes anglais (Quercus robur L.) afin d’évaluer l’efficacité de produits systémiques commercialement disponibles qui permettent d’induire une résistance (acide salicylique, phosphite de potassium, pro- téine d’harpine, betaine), et ce en les appliquant par vaporisation en tant que traitement thérapeutique contre la maladie foliaire du blanc des feuilles (Microsphaera alphotoides). La résistance systémique permet d’induire des composés contenant de la betaine et une vaporisation unique de penconazole n’a pas eu d’effet significatif sur la sévérité de la maladie, les émissions de fluorescence de la chlorophylle foliaire, le contenu chlorophyllien foliaire et l’activité spécifique du peroxidase et du superoxide dismutase au cours des essais de 2005 et de 2006. L’acide salicylique et le phosphite de potassium n’ont eu aucun effet significatif à long terme sur la sévérité de la maladie, les émissions Fv/Fm de fluorescence de la chlorophylle foliaire et le contenu en chlorophylle
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