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Nicotianamine is a major player in plant Zn homeostasis

Title data

Clemens, Stephan ; Deinlein, Ulrich ; Ahmadi, Hassan ; Höreth, Stephan ; Uraguchi, Shimpei:
Nicotianamine is a major player in plant Zn homeostasis.
In: Biometals. Vol. 26 (August 2013) Issue 4 . - pp. 623-632.
ISSN 1572-8773
DOI: https://doi.org/10.1007/s10534-013-9643-1

Abstract in another language

Nicotianamine (NA) is among the most studied plant metal chelators. A large body of evidence supports its crucial role for Fe distribution in plants and as a precursor of phytosiderophoresynthesis in grasses. NA forms stable complexes in vitro not only with Fe(II) and Fe(III) but also with various other divalent metal cations including Zn(II).Early observations indicated a possible contribution ofNA to Zn trafficking in plants. Numerous studies on transgenic monocot and dicot plants with modulated NA levels have since then reported Zn accumulationphenotypes. NAS genes were shown to represent promising targets for biofortification efforts. Forinstance, NA was found to bind Zn in rice grains in a form bioavailable for humans. Recently, additional strong support for the existence of Zn–NA complexes in planta has been obtained in rice, Arabidopsis thaliana and the Zn hyperaccumulating plant A. halleri. We review the evidence for a role of NA in the intercellular and long-distance transport of Zn in plants and discuss open questions.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER116653
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Physiology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Physiology > Chair Plant Physiology - Univ.-Prof. Dr. Stephan Clemens
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Date Deposited: 24 Apr 2015 11:56
Last Modified: 10 Jan 2018 10:28
URI: https://eref.uni-bayreuth.de/id/eprint/11391