Chlamydomonas reinhardtii, an Algal Model in the Nitrogen Cycle.

ABSTRACT: Nitrogen (N) is an essential constituent of all living organisms and the main limiting macronutrient. Even when dinitrogen gas is the most abundant form of N, it can only be used by fixing bacteria but is inaccessible to most organisms, algae among them. Algae preferentially use ammonium (NH₄⁺) and nitrate (NO₃^-) for growth, and the reactions for their conversion into amino acids (N assimilation) constitute an important part of the nitrogen cycle by primary producers. Recently, it was claimed that algae are also involved in denitrification, because of the production of nitric oxide (NO), a signal molecule, which is also a substrate of NO reductases to produce nitrous oxide (N₂O), a potent greenhouse gas. This review is focused on the m

SUBMITTER: Bellido-Pedraza CM 

PROVIDER: S-EPMC7412212 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature