Does manipulation of carbon and nitrogen metabolism in transgenic rice modify flag leaf senescence and grain filling at elevated CO2?

转基因水稻碳氮代谢调控是否改变了CO2浓度升高时旗叶衰老和籽粒灌浆？澳大利亚和日本之间的这一合作项目旨在制定水稻遗传操作战略，以提高在大气二氧化碳（CO2）浓度上升的情况下生长的作物的谷物产量。一个有希望的策略是减缓叶片的老化，叶片为发育中的谷物提供糖和氮，用于淀粉和蛋白质的合成。高二氧化碳改变了供需过程之间的平衡，因此制定战略的第一步是了解这些过程是如何调节的。为了实现这一理解，我们将使用转基因植物与单一的改变，无论是供应或需求功能。

Does manipulation of carbon and nitrogen metabolism in transgenic rice modify flag leaf senescence and grain filling at elevated CO2? This collaborative project between Australia and Japan aims to develop strategies for genetic manipulation of rice to improve grain yield of crops growing under rising atmospheric carbon dioxide (CO2) concentrations. A promising strategy is to slow aging of leaves that supply sugars and nitrogen to the developing grain for synthesis of starch and protein. High CO2 alters the balance between supply and demand processes and consequently the first step in developing a strategy is to understand how these processes are regulated. To achieve this understanding we will use genetically modified plants with single alterations to either supply or demand functions.