title: Time Course of Steroid Biosynthesis and Metabolism in Haplopappus heterophyllus.
abstract: A single dose of mevalonic acid-2-(14)C was administered simultaneously to 6 Haplopappus heterophyllus plants. They were harvested at intervals ranging from 3 days to 6 months. Four groups of biosynthetically related sterols were found to be radioactive in each plant, and the changes in radioactivity with time were studied. The most striking finding was a radioactive phenolic material present only in the 6-month plant, which had flowered.
authors.affiliation: Western Regional Research Laboratory, Albany, California.
authors.forename: R D
authors.initials: RD
authors.lastname: Bennett
authors.forename: E R
authors.initials: ER
authors.lastname: Lieber
authors.forename: E
authors.initials: E
authors.lastname: Heftmann