Molecular Ecology (2007) 16 , 1701–1711 Phylogenetic evidence for an animal pathogen origin of ergot and the grass endophytes. UNIVERSITE DE PRETORIA - 2005 - Ergot alkaloids produced by claviceps cyperi. Plant Protection Science - 2002 - Different Pathogenicity of Ergot Isolates (Claviceps purpurea [Fr.] Tul.) on Kentucky Bluegrass (Poa pratensis L.) AGRICULTURAL RESEARCH INSTITUTE, COIMBATORE 18/10/44 The natural occurence of ergot in South India. Tetrahedron 64 (2008) 2924e2929 New routes to clavine-type ergot alkaloids. Part 2: Synthesis of the last, so far not yet synthe.
Tetrahedron 64 (2008) 2924e2929 New routes to clavine-type ergot alkaloids. Part 2: Synthesis of the last, so far not yet synthesized member of the clavine alkaloid family, (#)-cycloclavine* – guatemalt
ENCYCLOPEDIE EOL - Claviceps purpurea (Fr.) Tul. 1883. ZEMDIRBYSTE AGRICULTURE - 2009 - The spread of ergot (Claviceps purpurea) on Poaceae plants and incidence on cereals in Lithania. ERGONISM_INFO - Présentation : Ergot of Rye Claviceps purpurea. THE AUSTRALIAN SOCIETY OF AGRONOMY - 2003 - Effect of climate variability on frequency of sorghum ergot outbreaks in Australia. Effect of climate variability on frequency of sorghum ergot outbreaks in Australia Enli Wang1, Holger Meinke1, Malcolm Ryley2 Abstract A method was developed to use historical weather data from 53 locations throughout the sorghum growing areas of Australia to analyse likely outbreak events of sorghum ergot with climate variability.
The five SOI phases were used for probabilistic forecasting of the frequency of such events. Results showed that the number of potential events varied strongly depending on time of the year and locations. Key Words Sorghum ergot, event frequency, climate variability, modelling The significant impact of the ovary disease, sorghum ergot caused by Claviceps africana Frederickson, Mantle & deMilliano, on the Australia sorghum industry has led to considerable research on the biology, epidemiology and management of the disease (Wang et al., 2000a; Ryley et al., 2001).
Where Tx and Tm are daily maximum and minimum temperature (°C) respectively. A. B. A. B. C. D. E. WIKIPEDIA - Poisonings mistaken for ergotism. Ergot or ergot fungi refers to a group of fungi of the genus Claviceps. The most prominent member of this group is Claviceps purpurea ("rye ergot fungus").
This fungus grows on rye and related plants, and produces alkaloids that can cause ergotism in humans and other mammals who consume grains contaminated with its fruiting structure (called ergot sclerotium). Claviceps includes about 50 known species, mostly in the tropical regions. Economically significant species include C. purpurea (parasitic on grasses and cereals), C. fusiformis (on pearl millet, buffel grass), C. paspali (on dallis grass), and C. africana (on sorghum). C. purpurea most commonly affects outcrossing species such as rye (its most common host), as well as triticale, wheat and barley. It affects oats only rarely.
C. purpurea has at least three races or varieties, which differ in their host specificity: Life cycle Effects on humans and other mammals Autres publications de l'ARS USDA concernant l'ergot. ARS USDA 31/05/06 MONITORING THE PRESENCE OF ERGOT ALKALOIDS IN FORAGE ANIMAL SAMPLES. ARS USDA 23/03/04 EFFECTS OF THE ERGOT ALKALOIDS DIHYDROERGOTAMINE, ERGONOVINE, AND ERGOTAMINE ON GROWTH OF ESCHERICHIA COLI O15.
ARS USDA 26/08/08 Effects of the ergot alkaloids dihydroergotamine, ergonovine, and ergotamine on growth of Escherichia coli O15. ONTARIO 20/10/06 Establishing Tolerable Ergot Levels for Weaned Pigs. Ergot is a fungal disease that primarily affects wheat, barley, triticale and rye.
It is most often seen in years where wet weather prevails in the spring and early summer or during the flowering stage of cereal crops. An ergot infection may not necessarily reduce grain yield but it will definitely have an impact on grain quality. As a result of the infection, the grain kernels are replaced with poisonous alkaloid-containing ergot sclerotia, hardened bodies that are formed by the fungus. The effect of feeding ergot-contaminated grain to pigs is not consistent, and ultimately depends on both the ergot content and the alkaloid concentration. The Canadian Grain Commission currently allows 0.01% ergot by weight in the highest grade wheat to 0.10% for the lowest grade of most wheat classes. The performance results are summarized in Table 1. The researchers also measured prolactin concentrations from blood samples taken from the pigs. Australian Journal of Agricultural Research, 54 (2). pp. 167-175 2004. Alkaloids of the sorghum ergot pathogen (Claviceps africa.