Nitrogen and sulfur assimilation in plants and algae

0440722 - MBÚ 2015 RIV NL eng J - Článek v odborném periodiku
Giordano, Mario - Raven, John A.
Nitrogen and sulfur assimilation in plants and algae.
Aquatic Botany. Roč. 118, č. 2 (2014), s. 45-61. ISSN 0304-3770. E-ISSN 1879-1522
Grant ostatní: University of Dundee(GB) SC 015096; Italian Ministry for Agriculture(IT) MIPAF, Bioforme project; Italian Ministry of Foreign Affairs(IT) MAE. Joint Italian-Israel Cooperation Program
Institucionální podpora: RVO:61388971
Klíčová slova: nitrogen * sulfur * assimilation * algae
Kód oboru RIV: EE - Mikrobiologie, virologie
Impakt faktor: 1.608, rok: 2014

Nitrogen and sulfur are abundant constituents of plant and algal cells that are assimilated at the lowest oxidation number, as NH4+ and S2-, although they can (in the case of sulfur, usually must) be acquired with their highest oxidation number, as NO3- and SO42-. Some occasional differences and variants exists for transport and assimilation systems; the greatest differences in the way vascular plants and algae use N and S, however, most probably resides in regulation. For instance, nitrate assimilation in plants is strongly regulated by phospholylation. In algae, redox regulation appears to be more important. Similarly, sulfate reduction has its main control step at the level of APS reductase in higher plants, whereas in algae a redox regulation has been recently been hypothesized for ATP sulfurylase, the first step in sulfate assimilation. Unfortunately, the information on the regulation of N and S acquisition and assimilation is limited to very few species (e.g. Chlamydomonas reinhardtii, Arabidopsis thaliana) this is especially true in the case of sulfur. This review attempts to highlight the points of divergence in N and S utilization by plants and algae, leaving aside the biochemical details and the features that do not show any obvious difference.
Trvalý link: http://hdl.handle.net/11104/0243838