Premium
Conversion of cyclolaudenol to 24α‐ and 24β‐ethylsterols in the cucurbitaceae
Author(s) -
Balliano Gianni,
Caputo Otto,
Viola Franca,
Delprino Laura,
Cattel Luigi
Publication year - 1983
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/bf02534706
Subject(s) - cucurbitaceae , cucurbita , cucurbita maxima , transformation (genetics) , chemistry , botany , enzyme , chromatography , biology , organic chemistry , biochemistry , gene
[2‐ 3 H]Cyclolaudenol was converted into α‐spinasterol, 24β‐ethylcholesta‐7,25‐dien‐3β‐ol and 24β‐ethylcholesta‐7,22,25‐trien‐3β‐ol by seedlings of Cucurbita maxima . As 24‐methylenecycloartanol is the obligatory precursor of 24‐ethylsterols, it can be assumed that the transformation of cyclolaudenol to 24‐methylenecycloartanol must have occurred. These results lead us to postulate the existence, in the Cucurbitaceae family, of an enzymatic system capable of isomerizing Δ 25 alkylsterols into Δ 25(28) sterols.