Fractionation of carbon isotopes in oxygenic photosynthesis values more similar to C3 plants. In contrast to terrestrial plants, where CO diffusion in air is relatively fast and typically not limiting, diffusion of dissolved CO in water is considerably slower and can often limit carbon fixation in phytoplankton. As gaseous CO is dissolved into aqueous CO, it is fractionated by both kinetic and equilibrium effects that are temperature-dependent. Relative to plants, the dissolved CO source for phytoplankton can be enriched in C by about 8‰ from atmospheric CO. Isotope fractionation of C by phytoplankton photosynthesis is affected by the diffusion of extracellular aqueous CO into the cell, the
What Can You Do for Me What Can You Do for Me "What Can You Do For Me" is the debut single by English electronic group Utah Saints. The song was released on 12 August 1991 and reached a peak position of number 10 in the UK Singles Chart. The song uses samples from "There Must Be an Angel (Playing with My Heart)" by Eurythmics and "Ain't Nothin' Goin' on But the Rent" by Gwen Guthrie. The single was released in August 1991 and entered the UK Singles Chart on 18 August at number 26. The song steadily rose up the chart and peaked at number