Effect of Time of the Day on the Susceptibility of Plants

  • Jeanne Dijkstra
  • Cees P. de Jager
Part of the Springer Lab Manual book series (SLM)


A diurnal effect on the susceptibility of plants has been established with a number of plant-virus combinations. In general, the susceptibility of plants is low in the early morning (at 6 h) and steadily rises until it reaches a maximum in the afternoon (between 14 and 16 h). This variation is not influenced by environmental conditions. In this exercise, the effect of the time of day on the susceptibility of leaves of the cultivar Pinto of French bean (Phaseolus vulgaris) to tobacco mosaic Tobamovirus (TMV) is studied.


Plant Material Mosaic Virus Early Morning Tobacco Mosaic Virus Plant Virus 
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  1. Lindner RC, Kirkpatrick HC, Weeks TE (1959) Some factors affecting the susceptibility of cucumber cotyledons to infection by tobacco mosaic virus. Phytopathology 49: 78–88Google Scholar
  2. Matthews REF (1991) Plant virology. Academic Press, LondonGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • Jeanne Dijkstra
    • 1
  • Cees P. de Jager
    • 1
  1. 1.Department of VirologyWageningen Agricultural UniversityWageningenThe Netherlands

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