PubMed · 49585
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J Brostoff. 1975-06-28. Letter: Hayfever and corticosteriods.. https://doi.org/10.1016/s0140-6736(75)92634-3
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1. Commercially available [2-14C]pyruvate and [2-14C]malonate were found to contain 3-6% (w/w) of [14C]acetate. 2. The contaminating [14C]acetate was efficiently utilized for fatty acid synthesis by isolated chloroplasts, whereas the parent materials were poorer substrates. 3. Maximum incorporation rates of the different substrates examined were (ng-atoms of C/h per mg of chlorophyll): [1-14C]acetate, 2676; [2-14C]pyruvate, 810; H14CO3-, 355; [2-14C]malonate, 19. 4. Products of CO2 fixation were probably not a significant carbon source for fatty acid synthesis in the presence of exogenous acetate.