title: Deuterium isotope effect on carbon isotope fractionation in photosynthesis.
abstract: Plants grown in D(2)O show a decreased tendency to fractionate carbon-13 during photosynthetic incorporation of carbon dioxide. The isotopic ratio C(13)/C(12) of the tissues of deuterated plants appears to be proportional to the deuterium content of the tissue. This effect was found in specimens of the partially deuterated vascular plant Nicotiana tabacum as well as in cultures of the fully deuterated alga Chlorella vulgaris.
authors.forename: R A
authors.initials: RA
authors.lastname: Uphaus
authors.forename: J J
authors.initials: JJ
authors.lastname: Katz