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) …

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 accounts for approximately 60% of the fertilizer consumed each year; thus, it
represents one of the major input costs for most nonlegume crops. Nitrate is one of the two …

Nitrogen (N) is an essential macronutrient that affects plant growth and development. N is an
important component of chlorophyll, amino acids, nucleic acids, and secondary metabolites …

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; …

Plant nitrate transporters were first identified and functionally characterized more than 20
years ago. They are encoded at least by four gene families, NRT1 (NPF), NRT2, CLC, and …

Plants need to acquire nitrogen (N) efficiently from the soil for growth. Nitrate is one of the
major N sources for higher plants. Therefore, nitrate uptake and allocation are key factors in …

Plants have developed adaptive responses allowing them to cope with nitrogen (N)
fluctuation in the soil and maintain growth despite changes in external N availability. Nitrate …

Background Nitrogen (N) is one of the key mineral nutrients for plants and its availability has
a major impact on their growth and development. Most often N resources are limiting and …