Aposematic (warning) coloration is a common defense in plants, although it was largely ignored before 2001. The fact that many aposematic animals use both plant-based pigments and sequestered poisonous molecules to become aposematic emphasizes the absurdity of neglecting the aposematic nature of so many plants. Similar to the situation in animals, aposematic coloration in plants is commonly yel...

This study analyzes the characteristics of accidental poisoning among children and young adolescents (< 15 years) in Londrina, Paraná State, Brazil, in 2001. Data were obtained from patient records in general hospitals, the local Poison Control Center, and the municipal Mortality Information Center. There were 473 cases of poisoning, with an incidence rate of 339.8 per 100,000, 58.5% due to poi...

Poisonous weeds are a serious threat to cattle in countries where animals are fed on natural as well as planted pastures. These may cause slight to severe lesions to different organs and, ultimately, death depending on the toxic principle and amount of ingested plant material. Wedelia glauca (Ort.) Hoffm. ex Hicken (Asteraceae) is a perennial plant from South America present in Southern Brazil,...

Alkaloids, nitrogen-containing secondary plant metabolites, are of major interest to veterinary toxicology because of their occurrence in plant species commonly involved in animal poisoning. Based on epidemiological data, the poisoning of cattle and horses by alkaloid-containing plants is a relatively common occurrence in Europe. Poisoning may occur when the plants contaminate hay or silage or ...

Iost toxic diseases can be divided into those which result from consumption or exposure to toxic chemicals or poisonous plants. They can be prevented by limiting access to these chemicals and plants. Copper Toxicity, Causes— (a) excessive copper ingestion, (b) absence of sufficient molybdenum in diet, (c) injury to liver tissue from plant alkaloids enabling the liver to store excess copper, (d)...