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Overexpressed phosphoenolpyruvate carboxykinase 2 (PCK2) from maize in rice enhances tolerance to low nitrogen stress
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Overexpressed phosphoenolpyruvate carboxykinase 2 (PCK2) from maize in rice enhances tolerance to low nitrogen stress
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Journal Article
Overexpressed phosphoenolpyruvate carboxykinase 2 (PCK2) from maize in rice enhances tolerance to low nitrogen stress
2025
Overview
Nitrogen deficiency results in the yellowing of old leaves and premature senescence, ultimately leading to crop yield limitations. In this study, we overexpressed phospho
enol
pyruvate carboxykinase 2 (
PCK2
) from maize in rice (OE) and observed that OE outperformed the wild type under low nitrogen stress conditions, with relatively higher biomass and photosynthetic pigment contents compared with the wild type. Additionally, OE enhances nitrogen absorption and assimilation. Therefore, the photosynthesis is enhanced and the sensitivity to changes in carbon-nitrogen balance is reduced compared with the wide type. Overall, the over-expression of
ZmPCK2
in rice could enhance its tolerance to low nitrogen stress.
