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In mycology a tissue or feature is said to be amyloid if it has a positive amyloid reaction when subjected to a crude chemical test using iodine as an ingredient of either Melzer's reagent or Lugol's solution, producing a blue to blue-black staining. The term "amyloid" is derived from the Latin amyloideus ("starch-like"). [1]
A positive reaction of Schaeffer's test, which uses the reaction of aniline and nitric acid on the surface of the mushroom, is indicated by an orange to red color; it is characteristic of species in the section Flavescentes. The compounds responsible for the reaction were named schaefferal A and B to honor Schäffer. [3]
Melzer's reagent is an aqueous solution of chloral hydrate, potassium iodide, and iodine.Depending on the formulation, it consists of approximately 2.50-3.75% potassium iodide and 0.75–1.25% iodine, with the remainder of the solution being 50% water and 50% chloral hydrate.
Spores are amyloid, meaning that they will absorb iodine and become bluish-black when stained with Melzer's reagent, [30] but this staining reaction has been described as "relatively weak". [1] The basidia (the spore-bearing cells) are 15–20 by 2.5–3.5 μm, club-shaped, and clamped at the base. [15]
Researchers have discovered that people who carry the APOE-e4 gene may be at a higher risk of developing a negative reaction to anti-amyloid drugs for Alzheimer's. New test may tell who is prone ...
An amyloid is any of certain insoluble fibrous protein aggregates. Amyloid may also refer to: Amyloid (mycology), a chemical reaction used in characterization of fungi; Amyloid, the Amyloid: the Journal of Protein Folding Disorders peer-reviewed scientific journal
One’s biological age, which measures the body’s physiological state, may help predict who is at risk for developing colon polyps, a known risk factor for colorectal cancer.
Being a husky owner isn't for the weak. It's not that they're bad dogs. It's just that they're HUGE drama queens. There has never been one situation where a Husky has maintained their chill.