Ziegler H, Batanouny K H, Sankhla N, Vyas O P, Stichler W
Botanisches Institut der Technischen Universität, D-8000, München, Germany.
Institut für Radiohydrometrie der Gesellschaft fü Strahlen-und Umweltforschung mbH, D-8000, München, Germany.
Oecologia. 1981 Feb;48(1):93-99. doi: 10.1007/BF00346993.
Plants collected from different habitats in the deserts of India, Saudi Arabia, Egypt, and Iraq were screened for their photosynthetic CO-fixation pathways using δC and δD values. The analyses comprised 128 species belonging to 108 genera and 46 families. Neither the C nor the CAM pathway was prevalent in the plant families analyzed except in Poaceae, where C metabolism absolutely dominated. Of 93 dicotyledonous plants, only 10 exhibited a C pathway and only 2 were CAM plants. The study shows that some species reported by other workers as C plants are clearly C ones.
对从印度、沙特阿拉伯、埃及和伊拉克沙漠不同栖息地采集的植物，利用δC和δD值筛选其光合碳固定途径。分析涵盖了46科108属的128个物种。在所分析的植物科中，除禾本科中C代谢绝对占主导外，C4或景天酸代谢（CAM）途径均不普遍。在93种双子叶植物中，只有10种表现出C4途径，只有2种是CAM植物。该研究表明，其他研究者报道的一些C4植物实际上明显是C3植物。
