Direct transfer of zinc between plants is channelled by common mycorrhizal network of arbuscular mycorrhizal fungi and evidenced by changes in expression of zinc transporter genes in fungus and plant
| Autor: | Maryline Calonne-Salmon, Stéphane Declerck, Elisa Pellegrino, Barbara Mazzolai, Alessio Cardini, Laura Ercoli |
|---|---|
| Přispěvatelé: | UCL - SST/ELI/ELIM - Applied Microbiology |
| Rok vydání: | 2021 |
| Předmět: |
Special Issue Articles
Rhizophagus irregularis Mutant chemistry.chemical_element Fungus Zinc Plant Roots Microbiology 03 medical and health sciences Mycorrhizae Medicago truncatula Botany Autotroph Mycorrhizal network Symbiosis Ecology Evolution Behavior and Systematics 030304 developmental biology 0303 health sciences biology 030306 microbiology fungi Special Issue Article food and beverages biology.organism_classification chemistry Shoot Carrier Proteins |
| Zdroj: | Environmental Microbiology, Vol. 23, no.10, p. 5883-5900 (2021) Environmental Microbiology |
| ISSN: | 1462-2920 1462-2912 |
| Popis: | Summary The role that common mycorrhizal networks (CMNs) play in plant‐to‐plant transfer of zinc (Zn) has not yet been investigated, despite the proved functions of arbuscular mycorrhizal fungi (AMF) in crop Zn acquisition. Here, two autotrophic Medicago truncatula plants were linked by a CMN formed by Rhizophagus irregularis. Plants were grown in vitro in physically separated compartments (Donor‐C and Receiver‐C) and their connection ensured only by CMN. A symbiosis‐defective mutant of M. truncatula was used as control in Receiver‐C. Plants in both compartments were grown on Zn‐free medium, and only the leaves of the donor plants were Zn fertilized. A direct transfer of Zn was demonstrated from donor leaves to receiver shoots mediated by CMN. Direct transfer of Zn was supported by changes in the expression of fungal genes, RiZRT1 and RiZnT1, and plant gene MtZIP2 in roots and MtNAS1 in roots and shoots of the receiver plants. Moreover, Zn transfer was supported by the change in expression of MtZIP14 gene in AM fungal colonized roots. This work is the first evidence of a direct Zn transfer from a donor to a receiver plant via CMN, and of a triggering of transcriptional regulation of fungal‐plant genes involved in Zn transport‐related processes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text