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Updated: Mar 28, 2026

Investigation of Plant Interactions Across Common Mycorrhizal Networks Using Rotated Cores
Published on: March 26, 2019
Rice perception of symbiotic arbuscular mycorrhizal fungi requires the karrikin receptor complex
Caroline Gutjahr1, Enrico Gobbato2, Jeongmin Choi2
1Department of Plant Molecular Biology, University of Lausanne, Biophore Building, 1015 Lausanne, Switzerland. Faculty of Biology, Genetics, University of Munich, Biocenter Martinsried, Grosshaderner Straße 2-4, 82152 Martinsried, Germany.
Abstract:
In terrestrial ecosystems, plants take up phosphate predominantly via association with arbuscular mycorrhizal fungi (AMF). We identified loss of responsiveness to AMF in the rice (Oryza sativa) mutant hebiba, reflected by the absence of physical contact and of characteristic transcriptional responses to fungal signals. Among the 26 genes deleted in hebiba, DWARF 14 LIKE is, the one responsible for loss of symbiosis . It encodes an alpha/beta-fold hydrolase, that is a component of an intracellular receptor complex involved in the detection of the smoke compound karrikin. Our finding reveals an unexpected plant recognition strategy for AMF and a previously unknown signaling link between symbiosis and plant development.
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