In order for green microalgae to acquire nitrogen (N), one of their primary processes is called nitrate assimilation. Chlamydomonas reinhardtii, which is a kind of Chlorophyte algae, has proven to be an excellent model system for elucidating crucial aspects of this process, and it has also supplied essential takeaways for plants that are pertinent to agricultural endeavors.
What is nitrate assimilation in biology?
Assimilation of NITRATE is one of the two primary biological processes that are responsible for the conversion of inorganic nitrogen to ammonia and, ultimately, to organic nitrogen. With the probable exception of certain blue-green algae and plants that have a symbiotic connection with rogen-fixing bacteria, photosynthetic organisms obtain the majority of their nitrogen from nitrate 1.
What is nitrogen assimilation in plants?
The process through which plants absorb nitrogen.Nitrogen is taken up by plants from the surrounding soil in the form of nitrate (NO 3) and ammonium (NH 4+), respectively.Nitrate is often the major form of accessible nitrogen that is absorbed in aerobic soils because this process allows for nitrification to take place.On the other hand, this isn’t always the case because ammonia might be more prevalent in grasslands and waterlogged areas.
How is nitrogen absorbed by plants?
The process through which plants absorb nitrogen.The plant’s ammonia transporters are responsible for the absorption of ammonium ions.Several different nitrate transporters, each of which is powered by a proton gradient, are responsible for the uptake of nitrate.Through the xylem, nitrogen travels from the root to the shoot in the form of nitrate, dissolved ammonia, and amino acids.
This process takes place in the plant.
What controls nitrogen uptake and assimilation in nitrate transporters?
The second method that governs nitrogen absorption and assimilation is known as rapid post-translational regulation. This type of regulation can occur through protein modification. It was very recently discovered that phosphorylation may be used to exert post-transcriptional control over nitrate transporters, namely the nitrate transporter NRT11.