Concurrent Session: Symbiosis and Mutualism (mycorrhiza and N-fixing Rhizobia)

Monday, July 14, 2025

10:30 - 12:00

Location: Confex Hall 1+2

Co-Chair(s)

CG

Caroline Gutjahr

Prof. Dr.
Max-Planck-Institute of Molecular Plant Physiology
Potsdam, Brandenburg, Germany
GH

Georgina Hernandez, PhD (she/her/hers)

Center for Genomic Sciences
Universidad Nacional Autonoma de Mexico (UNAM)
Cuernavaca, Mor., MEXICO

Mutualistic symbioses between plants and fungi or bacteria are based on the exchange of nutrients and are characterized by reciprocal benefits and close physical interaction, including in most cases accommodation of the microbes inside host cells. This requires fine-tuned signaling and cellular remodeling of both partners to reach and maintain compatibility, and to terminate the interaction in a timely manner to prevent parasitism. In this session we highlight recent findings on signaling, development, regulation, functioning, molecular diversity and evolution of mutualistic plant-microbe symbioses.

Presentations:

10:30 - 10:50

The common bean (Phaseolus vulgaris) –Rhizobium etli N-fixing symbiosis: unraveling novel plant regulators through genetic/genomic approach.
Presenting Author: Georgina Hernandez, PhD (she/her/hers) – Universidad Nacional Autonoma de Mexico (UNAM)
Author: Rocio Reyero-Saavedra
Author: Gladys Jimenez-Nopala
Author: Karina San Vicente
Author: Alfonso Leija
Author: Sara Fuentes
Author: Mario Ramirez
Author: Lourdes Girard
Author: Tim Porch
Author: Mishael Sanchez-Perez
Author: Pablo Pelaez
10:50 - 11:10

Regulation of arbuscular mycorrhiza development
Presenting Author: Caroline Gutjahr – Max-Planck-Institute of Molecular Plant Physiology
11:10 - 11:30

The inner workings of the CCaMK/Cyclops complex
Presenting Author: Martin Parniske – University of Munich
11:30 - 11:40

Immune modulation by the host's peptidyl-prolyl cis/trans isomerase in root nodule symbiosis
Presenting Author: Takashi Goto – Aarhus University
Author: Yasuyuki Kawaharada – Iwate University
Author: Kasper Andersen – Department of Molecular Biology and Genetics, Aarhus University
Author: Masayoshi Kawaguchi – National Institute for Basic Biology
Author: Jens Stougaard – Department of Molecular Biology and Genetics, Aarhus University
11:40 - 11:50

Stimulation of arbuscular mycorrhizal symbiosis by a fungal tripeptide
Author: Nathan Pavot – LRSV - Toulouse University
Author: Léa Pedinotti – LRSV - Toulouse University
Author: Eve Coutant – LRSV - Toulouse University
Author: Morgane Le Marquer – LRSV - Toulouse University
Author: Guillaume Bécard – LRSV - Toulouse University
Author: Virginie Puech Pagès – LRSV - Toulouse University
Presenting Author: Nicolas Frei Dit Frey (he/him/his) – LRSV - Toulouse University
11:50 - 12:00

The soil-borne fungus Verticillium dahliae differentially employs molecular tools to establish interactions with phylogenetically distant terrestrial microalgae
Presenting Author: Hanna Rovenich – University of Cologne
Author: Anton Kraege (he/him/his) – University of Cologne
Author: Eva Schnell – University of Cologne
Author: Ana Lopez-Moral – University of Cologne
Author: Heidrun Haeweker – University of Cologne
Author: Ole Nielsen – University of Cologne
Author: Bart Thomma (he/him/his) – CEPLAS/University of Cologne