Ergot alkaloids additional to ergovaline in endophyte-infected perennial ryegrass and tall fescue in New Zealand
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چکیده
منابع مشابه
Liver cytochrome P450 system as affected by endophyte-infected tall fescue seed extracts and ergot alkaloids
Endophyte infected tall fescue (E+) is the base diet for nearly all beef cattle in the southern USA. It has been linked to a variety of toxicological conditions due to the presence of large numbers of ergot alkaloids. This study was designed to investigate the effects of E+ seed extract and selected ergot alkaloids on the detoxification pathway by cytochrome P450 (CYP3A4) enzyme system. Tests w...
متن کاملSoil Carbon, Nitrogen, and Ergot Alkaloids with Short- and Long-Term Exposure to Endophyte-Infected and Endophyte-Free Tall Fescue
on tall fescue pastures (West et al., 1988; Clay, 1993; Siegel and Bush, 1996), as well as controlling plant disTall fescue (Festuca arundinacea Schreb.) is an important cooleases (Latch, 1997). A variety of alkaloids, N-containing season perennial forage naturally infected with an endophyte, Neotyphodium coenophialum Glenn, Bacon, & Hanlin, which produces ring structures, are produced in the t...
متن کاملAnalysis of endophyte toxins: fescue and other grasses toxic to livestock.
Research on livestock toxicoses caused by Acremonium (endophyte)-infected grasses strongly implicate the ergopeptine alkaloids with A. coenophialum-infected fescue and paxilline and the lolitrem alkaloids with A. lolii-infected perennial ryegrass as the causative agents. Isolation, identification, and detection of these toxins involves extraction with appropriate solvents, clean-up procedures, ...
متن کاملNovel Endophyte-Infected Tall Fescue
Tall fescue (Schedonorus phoenix (Scop.) Holub) is a cool season perennial grass that fills a critical forage produc-tion gap in the Southeast and is the predominant forage crop in much of the U.S. In fact, this species is the most widely used grass in improved U.S. pastures, occupying more than 36 million acres. Its popularity is related to establishment ease, drought tolerance, excellent graz...
متن کاملErgot Alkaloids Produced by Endophytic Fungi of the Genus Epichloë
The development of fungal endophytes of the genus Epichloë in grasses results in the production of different groups of alkaloids, whose mechanism and biological spectrum of toxicity can differ considerably. Ergot alkaloids, when present in endophyte-infected tall fescue, are responsible for "fescue toxicosis" in livestock, whereas indole-diterpene alkaloids, when present in endophyte-infected r...
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ژورنال
عنوان ژورنال: NZGA: Research and Practice Series
سال: 1999
ISSN: 2463-4751,0110-8581
DOI: 10.33584/rps.7.1999.3387