Overexpressed phosphoenolpyruvate carboxykinase 2 (PCK2) from maize in rice enhances tolerance to low nitrogen stress

被引：0

作者：

Xu, Hui ^{[1
]}

Zhang, Haizi ^{[1
,2
]}

Xu, Yue ^{[1
]}

Li, Chengke ^{[1
]}

Liu, Xiaowan ^{[1
]}

Wu, Tong ^{[1
]}

Zong, Linhao ^{[1
]}

Jiang, Dexing ^{[1
,3
]}

Chen, Guoxiang ^{[1
]}

Gao, Zhiping ^{[1
]}

机构：

[1] Nanjing Normal Univ, Coll Life Sci, Nanjing 210023, Peoples R China

[2] Luming Rd Jr High Sch, Yancheng 224000, Peoples R China

[3] Jiangsu Second Normal Univ, Sch Life Sci & Chem Engn, Nanjing 210013, Peoples R China

来源：

PLANT GROWTH REGULATION | 2025年 / 105卷 / 01期

基金：

中国国家自然科学基金;

关键词：

phosphoenolpyruvate carboxykinase; Low nitrogen; Photosynthesis; Nitrogen absorption and assimilation; The carbon and nitrogen balance; GENE-EXPRESSION; AMINO-ACID; METABOLISM; CARBON; PLANTS; ASSIMILATION; GLUTAMINE; TISSUES; C-4;

D O I：

10.1007/s10725-024-01224-z

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Nitrogen deficiency results in the yellowing of old leaves and premature senescence, ultimately leading to crop yield limitations. In this study, we overexpressed phosphoenolpyruvate 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.

引用

页码：257 / 272

页数：16

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