Arbuscular mycorrhizal symbiosis in cereals

Plant Molecular Genetics

The arbuscular mycorrhizal (AM) symbiosis is the most widespread plant-fungal interaction between roots of terrestrial plants and Glomeromycotan fungi. This association has received considerable attention because of (a) the nutritional benefit it confers on hosts by improving access to otherwise limiting sources of nutrients, (b) its widespread occurrence among extant plants due to the extraordinarily high degree of promiscuity of AM fungi and (c) its relative antiquity and putative ancestral relationship to other plant-microbe interactions. 

Our research focuses on the discovery of molecular mechanisms underlying the AM symbiosis in cereals. Unique resources available for maize and rice as hosts of AM fungi provide powerful tools for molecular genetics studies of AM symbiosis in general and in these economically important crop plants in particular. Our results may have a direct impact on plant pest and nutrition management strategies important for the optimization of agricultural systems.

Research topics

  • Cloning genes from maize and rice mutants

  • Novel mycorrhiza-factors in rice

  • Molecular genetics of symbiotic phosphate acquisition&

  • The arbusculome

  • Proteomics of the periarbuscular membrane

  • Genetic diversity of mycorrhizal responsiveness in maize

Interdisciplinary

  • SystemsX CINA: 3D-EM reconstruction of an arbuscule (Engel/Stahlberg, UniBasel) 

Contact Person

Prof. Dr. Uta Paszkowski

University of Lausanne
Department of Plant Molecular Biology
Website
uta.paszkowski-at-unil.ch
+41 (0)21 692 42 10


Recent publications

  • Title: The half-size ABC transporters STR1 and STR2 are indispensable for mycorrhizal arbuscule formation in rice
    Author(s): Gutjahr, Caroline; Radovanovic, Dragica; Geoffroy, Jessika; et al.
    Source: PLANT JOURNAL, 69 (5): 906-920 MAR 2012
    Document type: Article (Details)
  • Title: The transcriptome of the arbuscular mycorrhizal fungus Glomus intraradices (DAOM 197198) reveals functional tradeoffs in an obligate symbiont
    Author(s): Tisserant, E.; Kohler, A.; Dozolme-Seddas, P.; et al.
    Source: NEW PHYTOLOGIST, 193 (3): 755-769 FEB 2012
    Document type: Article (Details)
  • Title: Phosphate Import at the Arbuscule: Just a Nutrient?
    Author(s): Yang, Shu-Yi; Paszkowski, Uta
    Source: MOLECULAR PLANT-MICROBE INTERACTIONS, 24 (11): 1296-1299 NOV 2011
    Document type: Review (Details)
  • Tissue-Adapted Invasion Strategies of the Rice Blast Fungus Magnaporthe oryzae
    Marcel, S; Sawers, R; Oakeley, E; et al.
    PLANT CELL 22 (9): 3177-3187 SEP 2010 (Details)