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1. The incorporation of (14)CO(2) and dl-[2-(14)C]mevalonic acid into various terpenoids in developing chloroplasts in a number of seedlings has been studied. 2. beta-Carotene and phytol (from chlorophyll) tend to be heavily labelled from (14)CO(2), whereas sterols and beta-amyrin are only slightly labelled; with dl-[2-(14)C]mevalonic acid the situation is reversed. 3. The incorporation of (14)CO(2) into terpenoids is dependent on the stage of chloroplast development, whereas that of mevalonic acid is independent of chloroplast development. 4. The uptake of (14)CO(2) into beta-carotene and phytol in mature chloroplasts is very low in monocotyledons but somewhat greater in dicotyledons. 5. The results are discussed in relation to the view that terpenoid biosynthesis in developing chloroplasts is regulated by a combination of enzyme segregation and specific membrane permeability.
K J Treharne, and
E I Mercer, and
T W Goodwin
November 1961,
The Biochemical journal,
K J Treharne, and
E I Mercer, and
T W Goodwin
October 1967,
The Biochemical journal,
K J Treharne, and
E I Mercer, and
T W Goodwin
December 1959,
Biochimica et biophysica acta,
K J Treharne, and
E I Mercer, and
T W Goodwin
October 1969,
The Biochemical journal,
K J Treharne, and
E I Mercer, and
T W Goodwin
January 1981,
Neuropatologia polska,
K J Treharne, and
E I Mercer, and
T W Goodwin
November 1973,
The Journal of biological chemistry,
K J Treharne, and
E I Mercer, and
T W Goodwin
May 1962,
Biochimica et biophysica acta,
K J Treharne, and
E I Mercer, and
T W Goodwin
November 1973,
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.),
K J Treharne, and
E I Mercer, and
T W Goodwin
November 1957,
Plant physiology,
K J Treharne, and
E I Mercer, and
T W Goodwin
May 1969,
The Biochemical journal,
