1932

Abstract

▪ Abstract 

Grasses (family Poaceae) and fungi of the family Clavicipitaceae have a long history of symbiosis ranging in a continuum from mutualisms to antagonisms. This continuum is particularly evident among symbioses involving the fungal genus (asexual forms = spp.). In the more mutualistic symbiota, the epichloë endophytes are vertically transmitted via host seeds, and in the more antagonistic symbiota they spread contagiously and suppress host seed set. The endophytes gain shelter, nutrition, and dissemination via host propagules, and can contribute an array of host fitness enhancements including protection against insect and vertebrate herbivores and root nematodes, enhancements of drought tolerance and nutrient status, and improved growth particularly of the root. In some systems, such as the tall fescue . symbioses, the plant may depend on the endophyte under many natural conditions. Recent advances in endophyte molecular biology promise to shed light on the mechanisms of the symbioses and host benefits.

Loading

Article metrics loading...

/content/journals/10.1146/annurev.arplant.55.031903.141735
2004-06-02
2024-04-16
Loading full text...

Full text loading...

/content/journals/10.1146/annurev.arplant.55.031903.141735
Loading
/content/journals/10.1146/annurev.arplant.55.031903.141735
Loading

Data & Media loading...

  • Article Type: Review Article
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error