Increasing CO2 threatens human nutrition.
Increasing CO2 threatens human nutrition.
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DOI：
10.1038/nature13179
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发表时间：
2014-06-05
期刊：
影响因子：
64.8
通讯作者：
Usui Y
中科院分区：
文献类型：
--
作者：
Myers SS;Zanobetti A;Kloog I;Huybers P;Leakey AD;Bloom AJ;Carlisle E;Dietterich LH;Fitzgerald G;Hasegawa T;Holbrook NM;Nelson RL;Ottman MJ;Raboy V;Sakai H;Sartor KA;Schwartz J;Seneweera S;Tausz M;Usui Y
锌和铁的膳食缺乏是一个重大的全球性公共卫生问题。估计有20亿人患有这些缺陷，每年造成6300万生命年的损失。这些人中的大多数依赖于C3谷物和豆类作为其锌和铁的主要膳食来源。在这里，我们报告说，C3谷物和豆类有较低浓度的锌和铁时，在田间条件下生长在升高的大气CO2浓度预测本世纪中期。C3作物的蛋白质浓度也比豆类低，而C4作物似乎受影响较小。单一作物品种之间的差异表明，通过育种降低对大气CO2浓度的敏感性，可以部分解决全球健康面临的这些新挑战。
Dietary deficiencies of zinc and iron are a substantial global public health problem. An estimated two billion people suffer these deficiencies, causing a loss of 63 million life-years annually,. Most of these people depend on C3grains and legumes as their primary dietary source of zinc and iron. Here we report that C3grains and legumes have lower concentrations of zinc and iron when grown under field conditions at the elevated atmospheric CO2concentration predicted for the middle of this century. C3crops other than legumes also have lower concentrations of protein, whereas C4crops seem to be less affected. Differences between cultivars of a single crop suggest that breeding for decreased sensitivity to atmospheric CO2concentration could partly address these new challenges to global health.