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Selective uptake and lack of dealkylation of phytosterols by cactophilic species of Drosophila
Author(s) -
Kircher Henry W.,
Rosenstein Fumiko U.,
Fogleman James C.
Publication year - 1984
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02534804
Subject(s) - campesterol , cactus , drosophila (subgenus) , sterol , phytosterol , alkylation , lipidology , biology , host (biology) , cholesterol , botany , chemistry , biochemistry , ecology , gene , catalysis
The selective absorption of cholesterol and campesterol and discrimination against sitosterol was demonstrated with Drosophila mojavensis and Drosophila nigrospiracula , using a synthetic medium and 2 natural host cacti. Preferential absorption of trace amounts of phytosterols from a large quantity of other lipids occurred when D. arizonensis and D. mojavensis were reared from agria cactus. The absence of dealkylation of sitosterol to cholesterol was demonstrated with D. mojavensis and D. mettleri , reared on a sterol‐deficient medium supplemented with sitosterol.