Protoplasma

, Volume 67, Issue 4, pp 307–318 | Cite as

A submicroscopical study of leaves of alfalfa, Basil, and tobacco experimentally infected with lucerne mosaic virus

  • F. M. Gerola
  • Maria Bassi
  • E. Betto
Article
Received:

Summary

The leaves of three species of plants (Medicago sativa L.,Ocymum basilicum L., andNicotiana tabacum L., cv.Samsun), previously infected with lucerne mosaic virus (LMV), were studied in the electron microscope. In the leaves ofM. sativa andO. basilicum the infection was systemic, while in the leaves ofN. tabacum the infection was local. In all the three species LMV particles were always detected only in the cytoplasm. Apart from the presence of virus particles in the cytoplasm, no ultrastructural alterations were found inM. sativa andN. tabacum. InO. basilicum, the green leaf areas did not show any prominent alterations, while the yellow leaf areas showed marked alterations of the chloroplasts. In these, the lamellar system was scarcely developed, and the few thylakoids tended to fragment, curl and disappear. In the chloroplast stroma, there was an abnormal development of filamentous structures, resembling the stromacentre.

Keywords

Electron Microscope Leaf Area Mosaic Virus Virus Particle Green Leaf 
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Copyright information

© Springer-Verlag 1969

Authors and Affiliations

  • F. M. Gerola
    • 1
  • Maria Bassi
    • 2
  • E. Betto
    • 3
  1. 1.Istituto di Scienze BotanicheUniversità di MilanoItaly
  2. 2.Centro di Microscopia ElettronicaPolitecnico di MilanoItaly
  3. 3.Istituto di Patologia VegetaleUniversità di MilanoMilanoItaly

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