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The Evolution of Mutualism in Grass-Endophyte Associations

  • Heather H. Wilkinson
  • Christopher L. Schardl

Abstract

Mutualisms are interspecific interactions between individuals in which each participant receives a net benefit from the association (Thompson, 1994). The concept of mutualism is broad encompassing a wide variety of non-antagonistic and non-commensal interspecific interactions. Generally, these interactions involve and exchange of goods or services (e.g. nutrition, protection, dispersal of gametes or progeny). By definition the goods or services provided by a partner should be of low cost relative to the benefits it receives from the association. Therefore, to demonstrate that an association is mutualistic it is necessary to show a relative increase in the fitness of each partner.

Keywords

Tall Fescue Perennial Ryegrass Fungal Endophyte Fungal Symbiont Asexual Species 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Heather H. Wilkinson
    • 1
  • Christopher L. Schardl
    • 1
  1. 1.Department of Plant PathologyUniversity of KentuckyLexingtonUSA

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