Abstract
1. 1. The accumulation and excretion of free, soluble-bound, and insoluble-bound β-alanine during the pupal and adult stages of P. xuthus were investigated. 2. 2. Free β-alanine increases from the middle pupal stage, reaches a maximum at the time of red-spot appearance, and then decreases down to the time of emergence. 3. 3. The soluble-bound β-alanine sharply increases shortly before emergence and accumulates in the pale yellow scales of adult. 4. 4. The insoluble-bound β-alanine rapidly increases in the late pupal stage and accumulates in the wing-membrane and body wall of adult. 5. 5. The meconium contains a small amount of soluble-bound β-alanine, while the exuviae contain only a trace of β-alanine.
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More From: Comparative Biochemistry and Physiology -- Part B: Biochemistry and Molecular Biology
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