Interplant signalling through hyphal networks

David Johnson (Corresponding Author), Lucy Gilbert

Research output: Contribution to journalArticle

49 Citations (Scopus)
5 Downloads (Pure)

Abstract

I. II. III. IV. V. VI. References SUMMARY: Mycorrhizal fungi can form common mycelial networks (CMNs) that interconnect plants. Here, we provide an insight into recent findings demonstrating that CMNs can be conduits for interplant signalling, influencing defence against insect herbivores and foliar necrotrophic fungi. A likely mechanism is direct transfer of signalling molecules within hyphae. However, electrical signals, which can be induced by wounding, may also enable signalling over relatively long distances, because the biophysical constraints imposed by liquid transport in hyphae and interaction with soil are relieved. We do not yet understand the ecological, evolutionary and agronomic implications of interplant signalling via CMNs. Identifying the mechanism of interplant signalling will help to address these gaps.

Original languageEnglish
Pages (from-to)1448-1453
Number of pages6
JournalNew Phytologist
Volume205
Issue number4
Early online date24 Nov 2014
DOIs
Publication statusPublished - Mar 2015

Keywords

  • aphids
  • communication
  • electrical and chemical signalling
  • evolution
  • fitness
  • herbivory
  • mycorrhiza
  • volatile organic compunds (VOCs)

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