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Pyrrolizidine alkaloidosis is caused by the consumption of one or more of the 200 known plant species containing the toxic pyrrolizine alkaloids found all over the world today. [4] Established as the most common source of this illness are plants such as ragwort (Senecio jacobaea), woolly groundsels (Senecio redellii, Senecio longilobus ...
Phenylglycine is the organic compound with the formula C 6 H 5 CH(NH 2)CO 2 H. It is a non-proteinogenic alpha amino acid related to alanine, but with a phenyl group in place of the methyl group. It is a white solid. The compound exhibits some biological activity. [1]
PAs are a group of naturally occurring compounds found in a wide range of plant species. These alkaloids are secondary metabolites synthesized by plants primarily as a defense mechanism against herbivores, insects, and pathogens. [13] The biosynthesis of PAs was discovered to occur through the first pathway-specific enzyme homospermidine ...
This was seen due to the many experiments realized on rats, pigs, and other animals. [8] Poisoning is typically caused by ingestion of decorative yew shrubs or trimmings thereof. In animals the only sign is often sudden death. Diagnosis is based on knowledge of exposure and foliage found in the digestive tract.
A criticality accident occurred on December 30, 1958, at Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico, in the United States It is one of 60 known criticality events that have occurred globally outside the controlled conditions of a nuclear reactor or test; though it was the third such event that took place in 1958 after events on June 16 [1] at the Y-12 Plant in Oak Ridge ...
Coniine from hemlock consumed by quail has been suggested as the cause of coturnism, [4] though quail resist eating hemlock. [3] Hellebore has also been suggested as the source of the toxin. [ 5 ] It has also been asserted that this evidence points to the seeds of the annual woundwort ( Stachys annua ) being the causal agent. [ 3 ]
[citation needed] Decomposition of dead plant material causes complex organic compounds to be slowly oxidized lignin-like humus or to break down into simpler forms (sugars and amino sugars, aliphatic and phenolic organic acids), which are further transformed into microbial biomass (microbial humus) or are reorganized, and further oxidized, into ...
Particle radiation includes alpha and beta particles and neutrons. [17] When humans and animals are exposed to high radiation levels, they can develop cancer, congenital disabilities, or skin burns. Plants also face problems when exposed to large levels of radiation.