期刊
NEW PHYTOLOGIST
卷 217, 期 2, 页码 552-557出版社
WILEY
DOI: 10.1111/nph.14936
关键词
arbuscular mycorrhizal (AM) symbiosis; D14L; lateral root; receptor kinase; Rhizophagus irregularis; rice (Oryza sativa); root system architecture; signalling
资金
- BBSRC Research Experience Placement for undergraduates [BB/M011194/1]
- EMBO Long Term Fellowship Programme [ALTF 117-2014]
- Leverhulme Early Career Fellowship [ECF-2016-392]
- BBSRC grant [BB/N008723/1]
- BBSRC [BB/N008723/1] Funding Source: UKRI
Perception of arbuscular mycorrhizal fungi (AMF) triggers distinct plant signalling responses for parallel establishment of symbiosis and induction of lateral root formation. Rice receptor kinase CHITIN ELICITOR RECEPTOR KINASE 1 (CERK1) and alpha/beta-fold hydrolase DWARF14-LIKE (D14L) are involved in pre-symbiotic fungal perception. After 6wk post-inoculation with Rhizophagus irregularis, root developmental responses, fungal colonization and transcriptional responses were monitored in two independent cerk1 null mutants; a deletion mutant lacking D14L, and with D14L complemented as well as their respective wild-type cultivars (cv Nipponbare and Nihonmasari). Here we show that although essential for symbiosis, D14L is dispensable for AMF-induced root architectural modulation, which conversely relies on CERK1. Our results demonstrate uncoupling of symbiosis and the symbiotic root developmental signalling during pre-symbiosis with CERK1 required for AMF-induced root architectural changes.
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