Plant and Soil

, Volume 71, Issue 1–3, pp 433–443 | Cite as

The structure and function of mycelial systems of ectomycorrhizal roots with special reference to their role in forming inter-plant connections and providing pathways for assimilate and water transport

  • C. Brownlee
  • J. A. Duddridge
  • A. Malibari
  • D. J. Read


In the past function of mycorrhizas has been examined at the level either of the isolated individual root or of the individual entire plant. It is shown here that ectomycorrhizal mycelial strands can extend from plant to plant, thus initiating infection in seedlings, and that the resulting fungal interconnections provide functional pathways for the transfer of labelled assimilate between individuals. Mycelial strands also provide a pathway for the transport of physiologically significant quantities of water. Strand functions are examined in relation to structure, and their role as morphological and physiological extensions of the root system is emphasized. The significance of the experimental observations is discussed in relation to nutrient cycling processes in natural ecosystems.

Key words

Assimilate transfer Ectomycorrhiza Mycelial strands Pine Pinus sylvestris Suillus bovinus Vessel hyphae Water transport 


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Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1983

Authors and Affiliations

  • C. Brownlee
    • 1
  • J. A. Duddridge
    • 1
  • A. Malibari
    • 1
  • D. J. Read
    • 1
  1. 1.Botany DepartmentThe University of SheffieldSheffieldUK

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