Tcherkez Guillaume, Farquhar Graham D
Plateforme Métabolisme-Métabolome, IFR87, Université Paris-Sud XI, Orsay 91405, France.
Environmental Biology Group, Research School of Biological Sciences, Australian National University, Canberra, ACT 2601, Australia.
Funct Plant Biol. 2007 Dec;34(11):1049-1052. doi: 10.1071/FP07168.
While photosynthetically evolved O has been repeatedly shown to have nearly the same oxygen isotope composition as source water so that there is no corresponding O/O isotope effect, some recent O-enrichment studies suggest that a large isotope effect may occur, thus feeding a debate in the literature. Here, the classical theory of isotope effects was applied to show that a very small isotope effect is indeed expected during O production. Explanations of the conflicting results are briefly discussed.
虽然光合产生的氧已被反复证明其氧同位素组成与源水几乎相同，因此不存在相应的氧/氧同位素效应，但最近的一些氧富集研究表明可能会出现较大的同位素效应，这引发了文献中的一场争论。在此，应用经典的同位素效应理论表明，在氧产生过程中确实预期会有非常小的同位素效应。对相互矛盾的结果的解释也进行了简要讨论。
