Fractionation of carbon isotopes in oxygenic photosynthesis product 3-phosphoglycerate is depleted in C due to the kinetic isotope effect of the above reaction. The overall C fractionation for C3 photosynthesis ranges between -20 to -37‰. The wide range of variation in delta values expressed in C3 plants is modulated by the stomatal conductance, or the rate of CO entering, or water vapor exiting, the small pores in the epidermis of a leaf. The δC of C3 plants depends on the relationship between stomatal conductance and photosynthetic rate, which is a good proxy of water use efficiency in the leaf. C3 plants with high water-use efficiency tend to
What More Do I Need? finds out through his phone records that there is a number that he calls repeatedly every month. They discover that particular number belongs to Dr. Heller, a criminal psychologist. They attempt to call Dr. Heller posing as an insurance company, planning to get any information from Dr. Heller but failed. However, Dr. Heller is shocked to learn that Dave is currently in Fairview, and decides to book a plane there in the end of the episode. What More Do I Need? "What More Do I Need?" is the 94th episode of the ABC television series, "Desperate Housewives". It is the