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Nitrogen and sulfur assimilation in plants and algae
Giordano, M.; Raven, J.A. (2014). Nitrogen and sulfur assimilation in plants and algae. Aquat. Bot. 118: 45-61. https://dx.doi.org/10.1016/j.aquabot.2014.06.012
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770; e-ISSN 1879-1522, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Book/Review
    Marine Sciences
    Marine Sciences > Marine Sciences General
    Scientific Community
    Scientific Publication
    Marien/Kust
Author keywords
    Nutrient; Nitrogen; Sulfur; Uptake; Assimilation; Signaling

Project Top | Auteurs 
  • Association of European marine biological laboratories, meer

Auteurs  Top 
  • Giordano, M.
  • Raven, J.A.

Abstract
    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 phosphorylation. 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.

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