✦ LIBER ✦

Absence of sterol synthesis in larvae of the mud crabRhithropanopeus harrisiiand of the spider crabLibinia emarginata

✍ Scribed by J. O'Connell Whitney

Book ID: 104736329
Publisher: Springer-Verlag
Year: 1969
Tongue: English
Weight: 182 KB
Volume: 3
Category: Article
ISSN: 0025-3162
DOI: 10.1007/bf00353433

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✦ Synopsis

A dietary requirement for stemls in crustacean larvae was established by the use of isotopic tracer techniques. Larvae of the mud crab _RhithropanoTeus harr/8/i and larvae of the spider crab L/b/n/a emarginata were exposed to acetate-l~C or mevalonate-14C. Radioanalysis of the fatty acids of each species indicated sufficient incorporation of acetate for lipid synthesis. No radioactivity was detected in the sterols of animals exposed to either acetate-l~C or mevalonate-x~C. It was concluded that ]~. harri~ii and L. eraarginata larvae axe unable to synthesize sterels from acetate or mevMonate and, therefore, require them in their diet.

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