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 …

Nitrate is an important macronutrient and also acts as a signal for plant growth; however, its
levels in the soil solution can vary by three to four orders of magnitude. Consequently, plants …

AGPase, ADP glucose pyrophosphorylase GS, glutamine synthetase GOGAT, glutamate:
oxoglutarate amino transferase NADP‐ICDH, NADP‐dependent isocitrate dehydrogenase …

The decade since the publication of the third edition of this volume has been an era of great
progress in biology in general and the plant sciences in particular. This is especially true …

Physiological studies have established that plants acquire their NO− 3 from the soil through
the combined activities of a set of high-and low-affinity NO− 3 transport systems, with the …

Current global nitrogen fertilizer use has reached approximately one hundred billion kg per
annum. In many agricultural systems, a very substantial portion of this applied nitrogen …

Inorganic nitrogen concentrations in soil solutions vary across several orders of magnitude
among different soils and as a result of seasonal changes. In order to respond to this …

The nitrogen compounds nitrate and ammonium are the minerals that plants need in large
quantities and which limit their growth in temperate zones. The nitrate assimilation pathway …

Root NO 3–uptake and expression of two root NO 3–transporter genes (Nrt2; 1 and Nrt1)
were investigated in response to changes in the N‐or C‐status of hydroponically grown …

The availability of mineral nutrients in the soil dramatically fluctuates in both time and space.
In order to optimize their nutrition, plants need efficient sensing systems that rapidly signal …