Nitrogen-driven changes in leaf anatomy affect the coupling between leaf mass per area and photosynthesis
文献类型： 外文期刊
作者： Hu, Wenshi 1 ; Zhang, Shanshan 1 ; Huang, Wei 2 ; Chang, Haibin 2 ; Li, Yinshui 1 ; Gu, Chiming 1 ; Dai, Jing 1 ; Yang, Lu 1 ; Liao, Xing 1 ; Qin, Lu 1 ;
作者机构： 1.Chinese Acad Agr Sci, Key Lab Biol & Genet Improvement Oil Crops, Minist Agr, Oil Crops Res Inst, Wuhan 430062, Peoples R China
2.Huanggang Acad Agr Sci, Huanggang 438000, Peoples R China
关键词： Brassica napus; cell wall; leaf mass per area; mesophyll conductance; nitrogen; Rubisco
期刊名称：JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：5.7； 五年影响因子：6.8 ）
ISSN： 0022-0957
年卷期： 2025 年 76 卷 12 期
页码：
收录情况： SCI
摘要： Leaf mass per area (LMA) and photosynthetic rate (A) explain fast-slow growth strategies in the worldwide leaf economic spectrum. Nitrogen (N) promotes A and rapid growth, while LMA responds to N supply in a genotype specific manner. Structural traits affect the relationship between LMA and A, and we hypothesized that N supply would affect structural traits and thus the coupling between LMA and A. We tested this hypothesis by measuring A, LMA, anatomical traits, and N allocation to various leaf components in nine Brassica napus cultivars with two N supply levels. Mesophyll cell density (rho cell) and palisade tissue thickness (Tp) predominantly influence the variability in LMA. Enhanced Tp increased LMA, chloroplast surface area exposed to intercellular airspace, and N allocation into Rubisco (Nrub), thereby positively affecting mesophyll conductance (gm) and A. Conversely, rho cell promoted LMA but negatively affected Nrub under N deficiency. Enhanced LMA promoted N allocation to cell wall (Ncw), causing decreased Nrub fraction and consequently A. This negative effect was relieved by the positive effect of Tp on A, which coupled the variation of LMA and A. The plasticity of Tp and rho cell regulating gm and the trade-off between Nrub and Ncw provides insights for simultaneous increases in LMA and A to promote rapid growth and resistance. Variation in leaf mass per area under varying N supply was associated with mesophyll cell density and palisade tissue thickness, affecting mesophyll conductance and N allocation to cell wall versus Rubisco.
- 相关文献
作者其他论文 更多>>
-
Host lipid metabolism influences the variation in resistance of Pekin ducks to duck hepatitis A virus genotype 3
作者：Liang, Suyun;Lu, Meixi;Guo, Zhanbao;Luo, Dawei;Xing, Guangnan;Xie, Ming;Huang, Wei;Hou, Shuisheng;Chang, Zhuo
关键词：DHAV-3; Lipid metabolism; Pekin duck
-
An Improved Model for Online Detection of Early Lameness in Dairy Cows Using Wearable Sensors: Towards Enhanced Efficiency and Practical Implementation
作者：Dai, Xiaofei;Cheng, Guodong;Yang, Lu;Wang, Yali;Li, Zhongkun;Han, Shuqing;Liu, Jifang;Dai, Xiaofei;Cheng, Guodong;Yang, Lu;Wang, Yali;Li, Zhongkun;Han, Shuqing;Liu, Jifang
关键词：dairy cow lameness; early lameness detection; improved InceptionTime; feature fusion
-
Multiomics Reveals the Mechanism of Natranaerobius thermophilus Adaptation to Combined Hypersaline, Alkaline, and Elevated Temperature Environments
作者：Xing, Qinghua;Tao, Xinyi;Zhang, Shanshan;Guo, Xiaomeng;Wang, Haisheng;Zhao, Baisuo;Zhang, Shanshan;Mesbah, Noha M.;Mao, Xinwei;Guo, Xiaomeng;Hu, Qingping
关键词：polyextremophile; three-extremes; multiomics; hypersaline; alkaline; elevatedtemperature;
Natranaerobius thermophilus -
Proteomic Analysis of the Fusarium graminearum Secretory Proteins in Wheat Apoplast Reveals a Cell-Death-Inducing M43 Peptidase
作者：Li, Pengfeng;Zhao, Ruihua;Fan, Yujin;Hu, Qianyong;Zhang, Cuijun;Li, Pengfeng;Huang, Wei;Zhao, Ruihua;Ma, Wujun;Fang, Ying;Ma, Wujun
关键词：
Fusarium graminearum ; wheat; secretory proteins; M43 peptidase -
Nonlinear microbial thermal response and its implications for abrupt soil organic carbon responses to warming
作者：Yu, Kailiang;Niu, Shuli;Wang, Jinsong;Yu, Kailiang;He, Lei;Dacal, Marina;Dacal, Marina;Averill, Colin;Crowther, Thomas W.;Georgiou, Katerina;Ye, Jian-sheng;Mo, Fei;Yang, Lu
关键词：
-
Effect of energy level on reactive oxygen species metabolism during shade-drying of Thompson seedless grapes and its relation to browning
作者：Wang, Yujing;Zhang, Xuetong;Wang, Yujing;Zhang, Yuchen;Zhang, Miaomiao;Zhang, Xuetong;Wang, Cheng;Liu, Fengjuan;Huang, Wei;Xu, Zhen zhen
关键词：Browning; Reactive oxygen species (ROS) metabolism; Proteome; Thompson seedless grapes
-
Improvement of plant tolerance to salt stress by GhRL192 mRNA through long-distance movement
作者：Zhang, Xinjie;Zhang, Tianen;Li, Jinzhu;He, Jie;Liu, Yuanyuan;Wang, Yuan;Peng, Jun;Li, Zhanshuai;Zhang, Xinjie;Liu, Wenqian;Zhang, Tianen;Li, Jinzhu;He, Jie;Liu, Yuanyuan;Yang, Lu;Wang, Yuan;Peng, Jun;Li, Zhanshuai;Liu, Wenqian;Li, Zhanshuai
关键词：Grafting; Long-distance movement; mRNA; RL192; Salt stress
