Influence of Nitrogen Availability on Sulfate Assimilation Pathway in Arabidopsis thaliana

Koprivova, Anna; Brunold, Christian; Kopriva, Stanislav (1998). Influence of Nitrogen Availability on Sulfate Assimilation Pathway in Arabidopsis thaliana. In: Garab, G. (ed.) Photosynthesis: Mechanisms and Effects (pp. 3629-3632). Dordrecht: Springer 10.1007/978-94-011-3953-3_847

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Sulfate and nitrate, which contain sulfur and nitrogen in their most highly oxidized form, are the dominant species available to many plants for covering their needs for these elements (1–3). In amino acids, including sulfur containing amino acids cysteine and methionine, both sulfur and nitrogen are present in reduced form, therefore, sulfate and nitrate have to be reduced for their synthesis. The dominant portion of amino acids is used for protein synthesis hence the SIN ratio in plants remains quite stable. Plants appear to possess a mechanism to coordinate assimilatory sulfate and nitrate reduction so that the appropriate proportions of both sulfur containing and other amino acids are available for protein synthesis (4–7). These reports also indicate that the second enzyme of assimilatory sulfate reduction APS reductase is highly regulated by different nutritional conditions. In this study we were particularly interested in the regulation of APS reductase activity, mRNA expression, and protein accumulation under different conditions of nitrogen availability in Arabidopsis thaliana plants.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Stress Physiology (discontinued)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Brunold, Christian

Subjects:

500 Science > 580 Plants (Botany)

ISBN:

978-0-7923-5547-2

Publisher:

Springer

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

25 Jul 2018 08:23

Last Modified:

22 Oct 2019 21:43

Publisher DOI:

10.1007/978-94-011-3953-3_847

Uncontrolled Keywords:

enzymes, gene expression, molecular biology, N metabolism, S metabolism

BORIS DOI:

10.7892/boris.118951

URI:

https://boris.unibe.ch/id/eprint/118951

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