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In birds, the TRPV1 channel does not respond to capsaicin or related chemicals, but mammalian TRPV1 is very sensitive to it. This is advantageous to the plant, as chili pepper seeds consumed by birds pass through the digestive tract and can germinate later, whereas mammals have molar teeth that destroy such seeds and prevent them from germinating.
Capsaicin is a compound that can be extremely powerful depending on the concentration, and this was used to protect the seeds from predation, and increase their chance of survival. However, birds are not affected by the presence of capsicum and are able to eat the fruits and seeds.
Like capsaicin, it can deter mammals (but not birds or insects) from consuming plants or seeds (e.g. squirrels and bird feeder seeds). [3] This is consistent with nonivamide's role as a TRPV1 ion channel agonist. Mammalian TRPV1 is activated by heat and capsaicin, but the avian form is insensitive to capsaicin. [4]
Commonly known as the bird's nest fungi, their fruiting bodies resemble tiny egg-filled birds' nests. As they are saprobic , feeding on decomposing organic matter , they are often seen growing on decaying wood and in soils enriched with wood chips or bark mulch ; they have a widespread distribution in most ecological regions.
T he ongoing outbreak of bird flu has infected at least one person in the U.S. and has raised questions about how safe poultry and eggs are to eat right now.. So far, there have been no reported ...
A dozen more dairy herds in California have been stricken with bird flu as the virus continues to infect animals and humans around the U.S.. Nearly 700 herds in the state — or 71 percent of all ...
Capsaicin is the major capsaicinoid in chili peppers. [5] The Scoville scale may be used to express the pungency of other, unrelated TRPV1 agonists, sometimes with extrapolation for much hotter compounds. One such substance is resiniferatoxin, an alkaloid present in the sap of some species of euphorbia plants (spurges).
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