Nitrogen (N) is the driving force for crop yields; however, excessive N application in
agriculture not only increases production cost, but also causes severe environmental …

Contents Summary 35 I. Introduction 35 II. Nitrogen acquisition and assimilation 36 III. Root‐
to‐shoot transport of nitrogen 38 IV. Nitrogen storage pools in vegetative tissues 39 V …

Nitrogen is an essential macronutrient for plant growth and basic metabolic processes. The
application of nitrogen-containing fertilizer increases yield, which has been a substantial …

The plant circadian clock coordinates the responses to multiple and often simultaneous
environmental challenges that the sessile plant cannot avoid. These responses must be …

Ammonium is a major inorganic nitrogen source for plants. At low external supplies,
ammonium promotes plant growth, while at high external supplies it causes toxicity …

Application of chemical fertilizers, especially nitrogen (N), to crops has increased
dramatically in the last half century and therefore developing crop varieties with improved N …

Crop productivity relies heavily on nitrogen (N) fertilization. Production and application of N
fertilizers consume huge amounts of energy, and excess is detrimental to the environment; …

Glutamate (Glu) is a versatile metabolite and a signaling molecule in plants. Glu
biosynthesis is associated with the primary nitrogen assimilation pathway. The conversion …

The evolutionarily conserved target-of-rapamycin (TOR) kinase coordinates cellular and
organismal growth in all eukaryotes. Amino acids (AAs) are key upstream signals for …

Abstract Development of genetic varieties with improved nitrogen use efficiency (NUE) is
essential for sustainable agriculture. Generally, NUE can be divided into two parts. First …