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 …

Glutamine synthetase assimilates ammonium into amino acids, thus it is a key enzyme for
nitrogen metabolism. The cytosolic isoenzymes of glutamine synthetase assimilate …

To enhance crop productivity and minimize the harmful effects of various environmental
stresses, such as salinity and drought, farmers often use mineral fertilizers. However …

Aquaponics combines the hydroponic production of plants and the aquaculture production
of fish into a sustainable agriculture system that uses natural biological cycles to supply …

The effects of silicon (Si) application on plant growth, pigments, photosynthetic parameters,
chlorophyll a (Chl a) fluorescence parameters and nitrogen metabolism were studied in …

Ammonium and nitrate as different forms of nitrogen nutrients impact differently on some
physiological and biochemical processes in higher plants. Compared to nitrate, ammonium …

Despite serving as a major inorganic nitrogen source for plants, ammonium causes toxicity
at elevated concentrations, inhibiting root elongation early on. While previous studies have …

Three greenhouse experiments were carried out to determine the effect of the nitrogen form
and the nutrient solution pH on growth, yield, leaf gas exchange, carbohydrate, N-compound …

We present the first characterization of K+ optimization of N uptake and metabolism in an
NH4+‐tolerant species, tropical lowland rice (cv. IR‐72). 13N radiotracing showed that …

Hyperaccumulators are ideal plant species used for phytoremediation of soils contaminated
by heavy metals. A full understanding of metal tolerance mechanisms of hyperaccumulators …