scholarly journals Phenotyping for Nitrogen Use Efficiency: Rice Genotypes Differ in N-Responsive Germination, Oxygen Consumption, Seed Urease Activities, Root Growth, Crop Duration, and Yield at Low N

2018 ◽  
Vol 9 ◽  
Author(s):  
Narendra Sharma ◽  
Vimlendu Bhushan Sinha ◽  
Neha Gupta ◽  
Soumya Rajpal ◽  
Surekha Kuchi ◽  
...  
Keyword(s):  
Oxygen Consumption ◽  
Root Growth ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Rice Genotypes

scholarly journals Adaptation Mechanism of Roots to Low and High Nitrogen Revealed by Proteomic Analysis

Rice ◽  
2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Wei Xin ◽  
Lina Zhang ◽  
Jiping Gao ◽  
Wenzhong Zhang ◽  
Jun Yi ◽  
...  
Keyword(s):  
Root Growth ◽  
Nitrogen Use Efficiency ◽  
Root Morphology ◽  
Nitrogen Availability ◽  
Rice Root ◽  
Global Changes ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Rice Roots ◽  
Use Efficiency

Abstract Background Nitrogen-based nutrients are the main factors affecting rice growth and development. Root systems play an important role in helping plants to obtain nutrients from the soil. Root morphology and physiology are often closely related to above-ground plant organs performance. Therefore, it is important to understand the regulatory effects of nitrogen (N) on rice root growth to improve nitrogen use efficiency. Results In this study, changes in the rice root traits under low N (13.33 ppm), normal N (40 ppm) and high N (120 ppm) conditions were performed through root morphology analysis. These results show that, compared with normal N conditions, root growth is promoted under low N conditions, and inhibited under high N conditions. To understand the molecular mechanism underlying the rice root response to low and high N conditions, comparative proteomics analysis was performed using a tandem mass tag (TMT)-based approach, and differentially abundant proteins (DAPs) were further characterized. Compared with normal N conditions, a total of 291 and 211 DAPs were identified under low and high N conditions, respectively. The abundance of proteins involved in cell differentiation, cell wall modification, phenylpropanoid biosynthesis, and protein synthesis was differentially altered, which was an important reason for changes in root morphology. Furthermore, although both low and high N can cause nitrogen stress, rice roots revealed obvious differences in adaptation to low and high N. Conclusions These results provide insights into global changes in the response of rice roots to nitrogen availability and may facilitate the development of rice cultivars with high nitrogen use efficiency through root-based genetic improvements.

Biochemical and physiological characterization for nitrogen use efficiency in aromatic rice genotypes

2015 ◽  
Vol 179 ◽  
pp. 132-143 ◽  
Author(s):  
P. Vijayalakshmi ◽  
T. Vishnukiran ◽  
B. Ramana Kumari ◽  
B. Srikanth ◽  
I. Subhakar Rao ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Aromatic Rice ◽  
Nitrogen Use ◽  
Physiological Characterization ◽  
Use Efficiency ◽  
Rice Genotypes

NITROGEN USE EFFICIENCY IN UPLAND RICE GENOTYPES

2010 ◽  
Vol 33 (11) ◽  
pp. 1696-1711 ◽  
Author(s):  
N. K. Fageria ◽  
O. P. de Morais ◽  
A. B. dos Santos
Keyword(s):  
Nitrogen Use Efficiency ◽  
Upland Rice ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Rice Genotypes

High Nitrogen Use Efficiency in Rice Genotypes is Associated with Higher Net Photosynthetic Rate at Lower Rubisco Content

2003 ◽  
Vol 46 (2) ◽  
pp. 251-256 ◽  
Author(s):  
Debabrata Ray ◽  
M.S. Sheshshayee ◽  
K. Mukhopadhyay ◽  
H. Bindumadhava ◽  
T.G. Prasad ◽  
...  
Keyword(s):  
Net Photosynthetic Rate ◽  
Photosynthetic Rate ◽  
Nitrogen Use Efficiency ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Rice Genotypes

scholarly journals Phenylalanine as a nitrogen source induces root growth and nitrogen-use efficiency in Populus × canescens

2017 ◽  
Vol 38 (1) ◽  
pp. 66-82 ◽  
Author(s):  
Yu Jiao ◽  
Yinghao Chen ◽  
Chaofeng Ma ◽  
Jingjing Qin ◽  
Thi Hong Nhung Nguyen ◽  
...  
Keyword(s):  
Root Growth ◽  
Nitrogen Source ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals Physiological and molecular characterization of three rice genotypes with differential nitrogen use efficiency

2016 ◽  
Vol 11 (1) ◽  
pp. 162-171
Author(s):  
B. Srikanth ◽  
I. Subhakara Rao ◽  
S. Zehra Moiz ◽  
K.N. Swamy ◽  
K. Surekha ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Rice Genotypes
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