Fractionation of carbon isotopes in oxygenic photosynthesis the C3 pathway in the daytime and the C4 pathway in the nighttime. At night, when temperature and water loss are lower, the CO diffuses through the stomata and produce malate via phosphenolpyruvate carboxylase. During the following day, stomata are closed, malate is decarboxylated, and CO is fixed by RuBisCO. This process alone is similar to that of C4 plants and yields characteristic C4 fractionation values of approximately -11‰. However, in the afternoon, CAM plants may open their stomata and perform C3 photosynthesis. In daytime alone, CAM plants have approximately -28‰ fractionation, characteristic of C3 plants. These combined effects provide
What I Can Do for You 1996 mini-calendar. In the UK charts, it reached number 84 in its first release on February 19, 1994 and then number 43 on November 11, 1995. The song deals with sexual harassment with which Sheryl says she experienced her share of during her road to fame. What I Can Do for You "What I Can Do for You" is a single by Sheryl Crow from the album "Tuesday Night Music Club" released on A&M Records. It was originally released in 1993 and the single includes a rare speedier version of LP track "The Na-Na Song" (i.e. "Volvo Cowgirl 99"). "What