Dreyer, Ingo ORCID: 0000-0002-2781-0359, Spitz, Olivia, Kanonenberg, Kerstin, Montag, Karolin, Handrich, Maria R., Ahmad, Sabahuddin ORCID: 0000-0002-8762-4670, Schott-Verdugo, Stephan ORCID: 0000-0003-0735-1404, Navarro-Retamal, Carlos ORCID: 0000-0001-9581-0206, Rubio-Melendez, Maria E., Gomez-Porras, Judith L., Riedelsberger, Janin ORCID: 0000-0002-4687-7495, Molina-Montenegro, Marco A., Succurro, Antonella ORCID: 0000-0003-0227-2803, Zuccaro, Alga ORCID: 0000-0002-8026-0114, Gould, Sven B., Bauer, Petra, Schmitt, Lutz and Gohlke, Holger (2019). Nutrient exchange in arbuscular mycorrhizal symbiosis from a thermodynamic point of view. New Phytol., 222 (2). S. 1043 - 1054. HOBOKEN: WILEY. ISSN 1469-8137

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Abstract

To obtain insights into the dynamics of nutrient exchange in arbuscular mycorrhizal (AM) symbiosis, we modelled mathematically the two-membrane system at the plant-fungus interface and simulated its dynamics. In computational cell biology experiments, the full range of nutrient transport pathways was tested for their ability to exchange phosphorus (P)/carbon (C)/nitrogen (N) sources. As a result, we obtained a thermodynamically justified, independent and comprehensive model of the dynamics of the nutrient exchange at the plant-fungus contact zone. The predicted optimal transporter network coincides with the transporter set independently confirmed in wet-laboratory experiments previously, indicating that all essential transporter types have been discovered. The thermodynamic analyses suggest that phosphate is released from the fungus via proton-coupled phosphate transporters rather than anion channels. Optimal transport pathways, such as cation channels or proton-coupled symporters, shuttle nutrients together with a positive charge across the membranes. Only in exceptional cases does electroneutral transport via diffusion facilitators appear to be plausible. The thermodynamic models presented here can be generalized and adapted to other forms of mycorrhiza and open the door for future studies combining wet-laboratory experiments with computational simulations to obtain a deeper understanding of the investigated phenomena.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Dreyer, IngoUNSPECIFIEDorcid.org/0000-0002-2781-0359UNSPECIFIED
Spitz, OliviaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kanonenberg, KerstinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Montag, KarolinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Handrich, Maria R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ahmad, SabahuddinUNSPECIFIEDorcid.org/0000-0002-8762-4670UNSPECIFIED
Schott-Verdugo, StephanUNSPECIFIEDorcid.org/0000-0003-0735-1404UNSPECIFIED
Navarro-Retamal, CarlosUNSPECIFIEDorcid.org/0000-0001-9581-0206UNSPECIFIED
Rubio-Melendez, Maria E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gomez-Porras, Judith L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Riedelsberger, JaninUNSPECIFIEDorcid.org/0000-0002-4687-7495UNSPECIFIED
Molina-Montenegro, Marco A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Succurro, AntonellaUNSPECIFIEDorcid.org/0000-0003-0227-2803UNSPECIFIED
Zuccaro, AlgaUNSPECIFIEDorcid.org/0000-0002-8026-0114UNSPECIFIED
Gould, Sven B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bauer, PetraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schmitt, LutzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gohlke, HolgerUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-151800
DOI: 10.1111/nph.15646
Journal or Publication Title: New Phytol.
Volume: 222
Number: 2
Page Range: S. 1043 - 1054
Date: 2019
Publisher: WILEY
Place of Publication: HOBOKEN
ISSN: 1469-8137
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
MOBILE ENERGY-SOURCE; PLANT; TRANSPORT; NITROGEN; METABOLISM; NUTRITION; BATTERY; ROLES; ACIDMultiple languages
Plant SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/15180

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