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Effects of antibiotic treatments on Azolla-Anabaena and Arthrobacter

  • C. Forni
  • E. Tel-Or
  • E. Bar
  • M. Grilli Caiola
Part of the Developments in Plant and Soil Sciences book series (DPSS, volume 48)

Abstract

The leaf cavities and the sporocarps of the water fern Azolla contain bacteria belonging to the genus Arthrobacter Conn and Dimmick. The number of these bacteria can be decreased by treating the plants with novobiocin and erythromycin. The latter antibiotic kills the Anabaena, so Anabaena free plants can be obtained. In these plants the bacteria disappear almost completely. The novobiocin does not affect the heterocyst differentiation, but it decreases the N2-fixation activity by affecting the synthesis of the dinitrogenase reducíase.

Key words

Anabaena Arthrobacter Azolla Erythromycin novobiocin 

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Copyright information

© Springer Science+Business Media Dordrecht 1991

Authors and Affiliations

  • C. Forni
    • 1
  • E. Tel-Or
    • 2
  • E. Bar
    • 2
  • M. Grilli Caiola
    • 1
  1. 1.Department of BiologyII University of RomeRomeItaly
  2. 2.Department of Agricultural BotanyHebrew University of Jerusalem, Faculty AgricultureRehovotIsrael

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