Orobanche cumana KAI2d2 mediates perception of dehydrocostus lactone and strigolactones and is inhibited by triazole ureas
SHORT SUMMARY: Seed germination of the parasitic plant Orobanche cumana is induced by host-derived strigolactones and dehydrocostus lactone. We show that the KAI2d2 receptor perceives both ligands through distinct modes of interaction. Triazole urea compounds covalently inhibit KAI2d receptors, suppressing germination without affecting sunflower growth.
Authors
- Stefan T. Arold (ORCID: https://orcid.org/0000-0001-5278-0668)
- Yoshimoto Saito
- Kawthar Alashoor
- Aparna Balakrishna (ORCID: https://orcid.org/0000-0003-3404-9710)
- Muhammad Jamil
- Umar F. Shahul Hameed
- Salim Al-Babili (ORCID: https://orcid.org/0000-0003-4823-2882)
- Tadao Asami
- Randa Zarban
Institutions
- Shimizu (Japan) (JP)
- King Abdullah University of Science and Technology (SA)
- The University of Tokyo (JP)
Publication Details
- Journal
- Plant Communications
- Published
- 2026-05-01
- DOI
- https://doi.org/10.1016/j.xplc.2026.101889
- Primary Topic
- Plant Parasitism and Resistance
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- King Abdullah University of Science and Technology