Summary
In a glasshouse experiment three potato cultivars were grown to maturity in wet or dry compost. The number of lenticels per tuber was greater with larger tubers but was unaffected by the cultivar or soil moisture regime. The frequency of lenticel penetration by a water soluble stain, safranin O, remained high as tubers developed to maturity in wet soil. In dry soil penetration declined markedly as the tubers matured. When tubers, harvested just before the onset of haulm senescence, were inoculated withErwinia carotovora ssp.atroseptica, the frequency of lenticel rotting was less than the rate of stain penetration, indicating that additional factors were involved in the bacterial infection process. Inoculating mature tubers with bacteria and incubating them in anaerobic conditions frequently resulted in rotting of the lenticels. Comparable tubers incubated in aerobic conditions showed no rotting or invasion by bacteria. The results are discussed in relation to the biological control of blackleg.
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References
Adams, M.J., 1975a. Potato tuber lenticels: development and structure.Annals of Applied Biology 79: 265–273.
Adams, M.J., 1975b. Potato tuber lenticels: susceptibility to infection byErwinia carotovora var.atroseptica andPhytophthora infestans.Annals of Applied Biology 79: 275–282.
Anonymous, 1993. Scotland, the natural home of seed potatoes. The Scottish Seed Potato Development Council, Haddington, East Lothian, Scotland.
Artschwager, E.F., 1927. Wound periderm formation in potato as affected by temperature and humidity.Journal of Agricultural Research 35: 995–1000.
Burton, W.G., 1965. The permeability to oxygen of the periderm of the potato tuber.Journal of Experimental Botany 16: 16–23.
Burton, W.G., 1966. The Potato. H. Veenman & Zonen, Wageningen, The Netherlands.
Chard, J.M., J. van Gardingen & D.C. Graham, 1992. Biological control ofErwinia disease of potato. In: D.F. Jensen, J. Hockenhull & N.J. Fokkema (Eds), New approaches in biological control of soil-borne disease. International Organisation for Biocontrol/West Palaearctic Regional Section Bulletin 1992/XV/1, pp. 133–135.
Diriwachter, G. & D.G. Parberry, 1991. Infection of potato bySpongospora subterranea.Mycological Research 32: 761–762.
Elphinstone, J.G. & M.C.M. Pérombelon, 1986. Contamination of progeny tubers by seed and leaf-borneErwinia carotovora.Potato Research 29: 77–93.
Fellows, H., 1926. Relation of growth in the potato tuber to the potato scab disease.Journal of Agricultural Research 32: 757–781.
Lapwood, D.H. & T.F. Hering, 1968. Infection of potato tubers by common scab (Streptomyces scabies) during brief periods when the soil is drying.European Potato Journal 11: 177–187.
McCarter-Zorner, N.J., M.D. Harrison, C.D. Franc, C.E. Quinn, I.A. Sells & D.C. Graham, 1985. Soft rotErwinia bacteria in the rhizosphere of weeds and crop plants in Colorado, United States and Scotland.Journal of Applied Bacteriology 59: 357–368.
Meinl, G., 1966. Untersuchungen zur sorten- und umweltbedingten Variation der Lentizellenanzahl von Kartoffelknollen.Flora 156: 419–426.
Pérombelon, M.C.M., 1974. The role of the seed tuber in the contamination byErwinia carotovora of potato crops in Scotland.Potato Research 17: 187–191.
Pérombelon, M.C.M., 1992. Potato blackleg: epidemiology, host-pathogen interaction and control.Netherlands Journal of Plant Pathology, Supplement 2: 135–146.
Pérombelon, M.C.M. & L.J. Hyman, 1989. Survival of soft rot coliforms,Erwinia carotovora ssp.atroseptica in soil in Scotland.Journal of Applied Bacteriology 66: 95–106.
Scroth, M.N., 1985. Potential biocontrol of Erwinia disease. In: D.C. Graham & M.D. Harrison (Eds), Report of the International Conference on Potato Blackleg Disease 1984. Potato Marketing Board, Oxford, UK, pp. 71–72.
Silvester, A.B. & S.L. Harris, 1989. Nodule structure and nitrogenase activity ofCoriaria arborea in response to pO2.Plant and Soil 118: 97–109.
Weber, J. & W. Bartel, 1986. Die Lentizellen der Kartoffel-Ausgangspunkt und Eintrittspforte für Nassfäuleinfektionen.Kartoffelforschung-Aktuell 1986: 45–54.
Xu, G.W. & D.C. Gross, 1984. Effect of antagonistic fluorescent pseudomonads on colonization of potato roots byErwinia carotovora and on yield.Phytopathology 74: 805 (Abstract).
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Scott, R.I., Chard, J.M., Hocart, M.J. et al. Penetration of potato tuber lenticels by bacteria in relation to biological control of blackleg disease. Potato Res 39, 333–344 (1996). https://doi.org/10.1007/BF02357937
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DOI: https://doi.org/10.1007/BF02357937