Maoxing Zhang1,2, Yin Wang2,3, Xi Chen4, Feiyun Xu1, Ming Ding1, Wenxiu Ye2,5, Yuya Kawai6, Yosuke Toda2,7, Yuki Hayashi6, Takamasa Suzuki8, Houqing Zeng9, Liang Xiao1, Xin Xiao10, Jin Xu11, Shiwei Guo1, Feng Yan12, Qirong Shen1, Guohua Xu1, Toshinori Kinoshita13,14, Yiyong Zhu15. 1. Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environment Sciences, Nanjing Agricultural University, Nanjing, China. 2. Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan. 3. Institute of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of Ministry of Education, Peking University, Beijing, China. 4. College of Life Sciences, Nanjing Agricultural University, Nanjing, China. 5. School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China. 6. Graduate School of Science, Nagoya University, Nagoya, Japan. 7. Japan Science and Technology Agency (JST), PRESTO, Kawaguchi, Japan. 8. Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi, Japan. 9. College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China. 10. College of Resources and Environment, Anhui Science and Technology University, Fengyang, China. 11. College of Horticulture, Shanxi Agricultural University, Taigu, China. 12. Institute of Agronomy and Plant Breeding, Justus Liebig University, Giessen, Germany. 13. Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan. kinoshita@bio.nagoya-u.ac.jp. 14. Graduate School of Science, Nagoya University, Nagoya, Japan. kinoshita@bio.nagoya-u.ac.jp. 15. Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environment Sciences, Nanjing Agricultural University, Nanjing, China. yiyong1973@njau.edu.cn.
Abstract
Nitrogen (N) and carbon (C) are essential elements for plant growth and crop yield. Thus, improved N and C utilisation contributes to agricultural productivity and reduces the need for fertilisation. In the present study, we find that overexpression of a single rice gene, Oryza sativa plasma membrane (PM) H+-ATPase 1 (OSA1), facilitates ammonium absorption and assimilation in roots and enhanced light-induced stomatal opening with higher photosynthesis rate in leaves. As a result, OSA1 overexpression in rice plants causes a 33% increase in grain yield and a 46% increase in N use efficiency overall. As PM H+-ATPase is highly conserved in plants, these findings indicate that the manipulation of PM H+-ATPase could cooperatively improve N and C utilisation, potentially providing a vital tool for food security and sustainable agriculture.
nclass="Chemical">Nitrogen (N) aclass="Chemical">nd class="Chemical">n class="Chemical">carbon (C) are essential elements for plant growth and crop yield. Thus, improved N and C utilisation contributes to agricultural productivity and reduces the need for fertilisation. In the present study, we find that overexpression of a single rice gene, Oryza sativa plasma membrane (PM) H+-ATPase 1 (OSA1), facilitates ammonium absorption and assimilation in roots and enhanced light-induced stomatal opening with higher photosynthesis rate in leaves. As a result, OSA1 overexpression in rice plants causes a 33% increase in grain yield and a 46% increase in N use efficiency overall. As PM H+-ATPase is highly conserved in plants, these findings indicate that the manipulation of PM H+-ATPase could cooperatively improve N and C utilisation, potentially providing a vital tool for food security and sustainable agriculture.
Authors: Ertao Wang; Nan Yu; S Asma Bano; Chengwu Liu; Anthony J Miller; Donna Cousins; Xiaowei Zhang; Pascal Ratet; Million Tadege; Kirankumar S Mysore; J Allan Downie; Jeremy D Murray; Giles E D Oldroyd; Michael Schultze Journal: Plant Cell Date: 2014-04-29 Impact factor: 11.277