Universität zu Köln

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:	Creators Email ORCID ORCID Put Code Dreyer, Ingo UNSPECIFIED orcid.org/0000-0002-2781-0359 UNSPECIFIED Spitz, Olivia UNSPECIFIED UNSPECIFIED UNSPECIFIED Kanonenberg, Kerstin UNSPECIFIED UNSPECIFIED UNSPECIFIED Montag, Karolin UNSPECIFIED UNSPECIFIED UNSPECIFIED Handrich, Maria R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ahmad, Sabahuddin UNSPECIFIED orcid.org/0000-0002-8762-4670 UNSPECIFIED Schott-Verdugo, Stephan UNSPECIFIED orcid.org/0000-0003-0735-1404 UNSPECIFIED Navarro-Retamal, Carlos UNSPECIFIED orcid.org/0000-0001-9581-0206 UNSPECIFIED Rubio-Melendez, Maria E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gomez-Porras, Judith L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Riedelsberger, Janin UNSPECIFIED orcid.org/0000-0002-4687-7495 UNSPECIFIED Molina-Montenegro, Marco A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Succurro, Antonella UNSPECIFIED orcid.org/0000-0003-0227-2803 UNSPECIFIED Zuccaro, Alga UNSPECIFIED orcid.org/0000-0002-8026-0114 UNSPECIFIED Gould, Sven B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bauer, Petra UNSPECIFIED UNSPECIFIED UNSPECIFIED Schmitt, Lutz UNSPECIFIED UNSPECIFIED UNSPECIFIED Gohlke, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED
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:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MOBILE ENERGY-SOURCE; PLANT; TRANSPORT; NITROGEN; METABOLISM; NUTRITION; BATTERY; ROLES; ACID Multiple languages Plant Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15180