Differences between maize and rice in N-use efficiency for photosynthesis and protein allocation

被引：141

作者：

Makino, A ^{[1
]}

Sakuma, H ^{[1
]}

Sudo, E ^{[1
]}

Mae, T ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Agr Sci, Dept Appl Plant Sci, Aoba Ku, Sendai, Miyagi 9818555, Japan

来源：

PLANT AND CELL PHYSIOLOGY | 2003年 / 44卷 / 09期

关键词：

gas exchange (leaf); N-use efficiency; Oryza saliva L; protein allocation; ribulose-1,5-bisphosphate carboxylase/oxygenase Zea mays L;

D O I：

10.1093/pcp/pcg113

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The N-use efficiency for photosynthesis was higher in a C-4 Plant, maize, than in a C-3 plant, rice, including rbcS antisense rice with optimal ribulose-1,5-bisphosphate carboxylase (Rubisco) content for CO2-saturated photosynthesis, even when photosynthesis was measured under saturating CO2 conditions. The N cost for the C-4 cycle enzymes in maize was not large, and the lower amount of Rubisco allowed a greater N investment in the thylakoid components. This greater content of the thylakoid components as well as the CO2 concentrating mechanism may support higher N-use efficiency for photosynthesis in maize.

引用

页码：952 / 956

页数：5

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