University of Gothenburg, Department of Biological and Environmental Sciences, P.O. Box 461, 40530 Gothenburg, Sweden.
University of Gothenburg, Department of Biological and Environmental Sciences, P.O. Box 461, 40530 Gothenburg, Sweden.
Curr Opin Plant Biol. 2018 Oct;45(Pt B):262-267. doi: 10.1016/j.pbi.2018.06.001. Epub 2018 Jun 26.
Crops grown under elevated CO (eCO) typically exhibit enhanced yields but at the same time decreased nutritional quality. The latter effect has often been explained as a growth dilution phenomenon, but this cannot be the only process involved since crop nutrient concentrations are decreased also when production is unaffected by eCO. We review the current knowledge on eCO effects on crop nutritional quality with focus on the current understanding of the possible mechanisms and processes causing these effects. Emphasis is on crop nitrogen (N) and protein concentrations but effects on other nutrients and how they compare with those on N are also covered.
在高浓度二氧化碳（eCO）环境下生长的作物通常表现出更高的产量，但同时其营养价值降低。这种负面影响通常被解释为生长稀释现象，但这不可能是唯一涉及的过程，因为即使生产不受 eCO 影响，作物的养分浓度也会降低。我们综述了 eCO 对作物营养品质影响的现有知识，重点是当前对可能导致这些影响的机制和过程的理解。强调了作物氮（N）和蛋白质浓度，但也涵盖了其他营养素的影响，以及它们与 N 的影响相比如何。
