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Rapid nitrogen transfer in the Sorghum bicolor : glomus mosseae arbuscular mycorrhizal symbiosis
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 2270316
Author(s) Koegel, Sally; Boller, Thomas; Lehmann, Moritz F; Wiemken, Andres; Courty, Pierre-Emmanuel
Author(s) at UniBasel Lehmann, Moritz
Boller, Thomas
Courty, Pierre-Emmanuel
Wiemken, Andres M.
Koegel, Sally
Year 2013
Title Rapid nitrogen transfer in the Sorghum bicolor : glomus mosseae arbuscular mycorrhizal symbiosis
Journal Plant signaling & behavior
Volume 8
Number 8
Pages / Article-Number 25229 1-3
Abstract We have recently identified two genes coding for ammonium transporters (AMT) in Sorghum bicolor that were induced in roots colonized by arbuscular mycorrhizal (AM) fungi. To improve our understanding of the dynamics of ammonium transport in this symbiosis, we studied the transfer of soil-ammonium-derived (15)N to S. bicolor plants via the Glomus mosseae fungal mycelium in compartmented microcosms. The (15)NH (4+)-containing hyphal compartment was inaccessible to the roots in the plant compartment. (15)N label concentrations significantly increased in plant roots and leaves already 48 h after exposure of the AM fungus to the (15)NH (4+) substrate, attesting an efficient symbiotic N transfer between the symbiotic partners and further highlighting that AM symbiosis represents an important component of plant nitrogen nutrition.
Publisher Landes Bioscience
edoc-URL http://edoc.unibas.ch/dok/A6164894
Full Text on edoc No
Digital Object Identifier DOI 10.4161/psb.25229
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/23759552
ISI-Number MEDLINE:23759552
Document type (ISI) Journal Article
 
   

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13/06/2024