We have proposed that rising atmospheric CO2 concentrations inhibit malate production in chloroplasts and thus impede assimilation of nitrate into protein in shoots of C3 plants, a phenomenon that will strongly influence primary productivity and food security under the environmental conditions anticipated during the next few decades. Although hundreds of studies support this proposal, several publications in 2018 and 2019 purport to present counter-evidence. The following evaluates these publications as well as presents new data that elevated CO2 enhances root nitrate assimilation in wheat and Arabidopsis while it inhibits shoot nitrate assimilation. This article is protected by copyright. All rights reserved.

中文翻译：

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大气中CO 2 浓度升高抑制了芽中硝酸盐的同化，但在C 3 植物的根中增强了硝酸盐同化作用

我们提出，大气 CO2 浓度升高会抑制叶绿体中苹果酸的产生，从而阻碍 C3 植物枝条中硝酸盐同化为蛋白质，这种现象将在未来几十年预期的环境条件下强烈影响初级生产力和粮食安全。尽管数百项研究支持这一提议，但 2018 年和 2019 年的几份出版物声称提供了反证。以下内容评估了这些出版物，并提供了新数据，即升高的 CO2 增强了小麦和拟南芥根部硝酸盐的同化，同时抑制了芽部的硝酸盐同化。本文受版权保护。版权所有。