Stand persistence of tall fescue pasture cultivars free of or infested with Acremonium coenophialum
نویسندگان
چکیده
منابع مشابه
Effects of feeding Kentucky 31 tall fescue seed infected with acremonium coenophialum to laboratory rats.
An endophytic fungus found in Kentucky 31 (KY-31) tall fescue has been associated with the "summer syndrome" (fescue toxicity) in grazing cattle. Four experiments were conducted to investigate the use of weanling rats as an animal model to study the fescue toxicity syndrome. When graded levels of fungus-infected (INF) or fungus-free (FF) KY-31 seed were fed, feed intake and growth rates were in...
متن کاملConsequences For Captive Zebra Finches of Consuming Tall Fescue Seeds Infected With the Endophytic Fungus Acremonium coenophialum
Tall fescue (Festuca rundinacea) plants can be infected with the endophytic fungus Acremonium coenophialum. This fungus, which grows subcutaneously in leaves, stems, and seeds, does not undergo sexual reproduction or sporulate, and cannot survive outside the plant (Clay 1988). The fungus is passed from one generation to the next through infected seed. A mutualistic relationship exists between t...
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For tall fescue in the southeastern USA, long term persistence, competitiveness, yield, and summer survival are directly related to the presence of a fungal endophyte (Neotyphodium coenophialum; formerly called Acremonium coenophialum) living in the fescue plant. However, cattle grazing forage from the predominant USA tall fescue cultivars infected with their naturally occurring endophyte strai...
متن کاملSelection for Persistence in Endophyte-Free Kentucky 31 Tall Fescue
itiveness of Kentucky 31 tall fescue (Bouton et al., 1993a; Hill et al., 1991; West et al., 1993). However, cattle ‘Kentucky 31’, released in 1943, remains the most widely used tall grazing forage from most E tall fescue cultivars suffer fescue cultivar (Festuca arundinacea Schreb.). The fungal endophyte, Neotyphodium coenophialum (Morgan-Jones & Gams.) Glenn, from fescue toxicity (Buckner, 198...
متن کاملGenetic Transformation of Elite Turf-type Cultivars of Tall Fescue
Biotechnology approaches can supplement conventional breeding efforts for turfgrass improvement. The objective of this study was to develop reliable transformation and selection schemes for elite turf-type tall fescue cultivars. Transgenic tall fescue (Festuca arundinacea Schreb.) plants were obtained by microprojectile bombardment of embryogenic suspension cells of two elite turf-type cultivar...
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ژورنال
عنوان ژورنال: Annales de Zootechnie
سال: 1995
ISSN: 0003-424X
DOI: 10.1051/animres:19950594