Mycorrhiza

, Volume 6, Issue 2, pp 129–135

Response of 11 eucalyptus species to inoculation with three arbuscular mycorrhizal fungi

Authors

  • D. Adjoud
    • Unité de Recherche en Biologie et Agro-Foresterie, Université de Tizi-Ouzou, Tizi-Ouzou 15000, Algeria
  • C. Plenchette
    • INRA, Station d'Agronomie, 17 Rue Sully, BV 1540, F-21034 Dijon Cedex, France
  • R. Halli-Hargas
    • Unité de Recherche en Biologie et Agro-Foresterie, Université de Tizi-Ouzou, Tizi-Ouzou 15000, Algeria
  • F. Lapeyrie
    • INRA, Centre de Nancy, Laboratoire de Microbiologie Forestière, F-54280 Champenoux, France Fax +33–83 39 40 69; e-mail: lapeyrie@nancy.inra.fr
ORIGINAL PAPER

DOI: 10.1007/s005720050117

Cite this article as:
Adjoud, D., Plenchette, C., Halli-Hargas, R. et al. Mycorrhiza (1996) 6: 129. doi:10.1007/s005720050117

Abstract

 Numerous publications have reported growth stimulation of Eucalyptus following ectomycorrhizal inoculation in nursery or field conditions. Although Eucalyptus species can also form arbuscular mycorrhiza, their dependency on this type of mycorrhiza is still debatable. This paper presents information on the effect of inoculation of arbuscular mycorrhizal fungi on eucalypt growth. Twenty weeks after mycorrhizal inoculation, Eucalyptus seedlings' stem dry weight could be increased up to 49% compared to non-inoculated control plants. Intensity of root colonization by a given fungus depended on the host species, but it was not related to a plant growth response. Leaf phosphorus concentration of non-inoculated Eucalyptus seedlings varied greatly between species. Increases in leaf phosphorus concentration following mycorrhizal infection were not necessarily associated with plant growth stimulation. The most mycorrhiza-dependent Eucalyptus species tended to be those having the highest leaf phosphorus concentration in the absence of a fungal symbiont. These mycorrhiza-dependent Eucalyptus species seem to have greater phosphorus requirements and consequently to rely more on the symbiotic association.

Key words EucalyptusArbuscular mycorrhizaPhosphorusEndomycorrhizal dependency

Copyright information

© Springer-Verlag Berlin Heidelberg 1996