کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2053875 | 1075580 | 2012 | 8 صفحه PDF | دانلود رایگان |

Research on agronomic grasses has shown that Class 1 fungal endophytes (Neotyphodium/Epichloë; Clavicipitaceae) can have profound effects on host plant fitness. However, in natural systems, even basic ecological knowledge of most endophyte symbioses is lacking. Here, I describe the distribution and abundance of endophytes across 36 native (or naturalized) grasses in a previously unsurveyed region, the California Floristic Province. Symbiosis was generally low: 8.33 % of species and 18.75 % of genera hosted endophytes. I then compared the proportions of symbiotic species and genera found in California and other Mediterranean regions to the proportions found in non-Mediterranean regions. Surveys of Mediterranean-influenced regions showed significantly lower proportions of species (∼66 % lower) and genera (∼65 % lower) hosting endophyte than surveys of non-Mediterranean regions. This pattern suggests that selection in Mediterranean climates may not favor endophyte symbioses.
► Knowledge of most fungal endophyte-plant symbioses is lacking.
► I described the distribution/abundance of endophytes across 36 California grasses.
► Endophyte symbioses were rare in California.
► I compared these data with surveys of grasses from around the world.
► Symbioses were less common in regions with Mediterranean-influenced climates.
Journal: Fungal Ecology - Volume 5, Issue 3, June 2012, Pages 345–352