The Green Revolution of the 1960s improved crop yields in part through the widespread
cultivation of semidwarf plant varieties, which resist lodging but require a high-nitrogen (N) …

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 …

Teosinte, the wild ancestor of maize (Zea mays subsp. mays), has three times the seed
protein content of most modern inbreds and hybrids, but the mechanisms that are …

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 …

Highlights•Myriad transporters ensures N uptake and its distribution throughout the
plant.•Distinct glutamine synthetase isoenzymes contribute to meet the N demand under …

Overexpression of the cytosolic enzyme glutamine synthetase 1 (GS1) has been
investigated in numerous cases with the goal of improving crop nitrogen use efficiency …

In agricultural cropping systems, relatively large amounts of nitrogen (N) are applied for
plant growth and development, and to achieve high yields. However, with increasing N …

Leaf senescence can impact crop production by either changing photosynthesis duration, or
by modifying the nutrient remobilization efficiency and harvest index. The doubling of the …

Despite its worldwide economic importance for food (oil, meal) and non-food (green energy
and chemistry) uses, oilseed rape has a low nitrogen (N) use efficiency (NUE), mainly due to …

Inorganic nitrogen in the form of ammonium is assimilated into asparagine via multiple steps
involving glutamine synthetase (GS), glutamate synthase (GOGAT), aspartate …