Biotechnology Bulletin ›› 2020, Vol. 36 ›› Issue (8): 162-172.doi: 10.13560/j.cnki.biotech.bull.1985.2020-0141

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Research Progress on Molecular Mechanisms of Nitrate-regulated Plant Flowering and Yield

GONG Wei1, YU Jian-yuan2, ZHANG Xi1, SHAN Xiao-yi1   

  1. 1. College of Biological Sciences and Technology,Beijing Forestry University,Beijing 100083;
    2. Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Beijing 100101
  • Received:2020-02-16 Online:2020-08-26 Published:2020-08-27

Abstract: Developing early-maturation high-yield varieties is one of the most desirable goals for crop breeding. Nitrogen(N),the essential nutrient for plant development and growth,plays a key role in the regulation of flowering and yield productivity. Nitrate(NO3-),the predominant N form in the soil,functions as a nutrient and signal to participate in the regulation of plant flowering and yield via various means such as transport,metabolism and signal transduction. In this review,we focus on the molecular mechanisms underlying nitrate-regulated early-maturity and high-yield in model plant Arabidopsis thaliana and Oryza sativa as well as in staple crops. Through this review,we aim to provide a theoretical reference for rational utilization of nitrogen fertilizer,improvement of nitrogen utilization efficiency and cultivation of new varieties of early-maturing and high-yielding crops.

Key words: nitrate, flowering, yield, molecular mechanism