ArticleThe Plant journal : for cell and molecular biology2022
Zaxinone synthase controls arbuscular mycorrhizal colonization level in rice.
Article in The Plant journal : for cell and molecular biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Integrating single-cell omic techniques to resolve the spatio-temporal complexity of arbuscular mycorrhizal symbiosis.Journal of experimental botany · 2026Review
- Review
- LYCOPENE β-CYCLASE overexpression improves growth, modulates hormone content, and affects rhizospheric interactions in tobacco and tomato roots.Plant cell reports · 2025Article
- The metabolic landscape of tomato roots during arbuscular mycorrhizal symbiosis reveals lipid-related metabolic rewiring.Plant cell reports · 2025Article
- Zaxinone Synthase overexpression modulates rice physiology and metabolism, enhancing nutrient uptake, growth and productivity.Plant, cell & environment · 2025Article
- Effect of exogenous treatment with zaxinone and its mimics on rice root microbiota across different growth stages.Scientific reports · 2024Article
- Evolution of small molecule-mediated regulation of arbuscular mycorrhiza symbiosis.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- OsCYP706C2 diverts rice strigolactone biosynthesis to a noncanonical pathway branch.Science advances · 2024Article
- TheFrontiers in microbiology · 2024Article
- Ectopic expression of the GRAS-type transcriptional regulatorFrontiers in plant science · 2024Article
- A Fast and Cost-Effective Genotyping Method for CRISPR-Cas9-Generated Mutant Rice Lines.Plants (Basel, Switzerland) · 2023Article
- ZAXINONE SYNTHASE 2 regulates growth and arbuscular mycorrhizal symbiosis in rice.Plant physiology · 2023Article
- Editorial: Specialized metabolites manipulating organismal behaviors and rhizospheric communications.Frontiers in plant science · 2023Article
- Carotenoid-derived bioactive metabolites shape plant root architecture to adapt to the rhizospheric environments.Frontiers in plant science · 2022Review
- Metabolomics of plant root exudates: From sample preparation to data analysis.Frontiers in plant science · 2022Review
- Carotenoid metabolism: New insights and synthetic approaches.Frontiers in plant science · 2022Review
- Boosting Drought Resilience in Rice: The Priming Effects of Zaxinone and Its Mimics.Physiologia plantarumArticle
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Oryza sativa (rice) carotenoid cleavage dioxygenase OsZAS was described to produce zaxinone, a plant growth-promoting apocarotenoid. A zas mutant line showed reduced arbuscular mycorrhizal (AM) colonization, but the mechanisms underlying this behavior are unknown. Here, we investigated how OsZAS and exogenous zaxinone treatment regulate mycorrhization. Micromolar exogenous supply of zaxinone rescued root growth but not the mycorrhizal defects of the zas mutant, and even reduced mycorrhization in wild-type and zas genotypes. The zas line did not display the increase in the level of strigolactones (SLs) that was observed in wild-type plants at 7 days post-inoculation with AM fungus. Moreover, exogenous treatment with the synthetic SL analog GR24 rescued the zas mutant mycorrhizal phenotype, indicating that the lower AM colonization rate of zas is caused by a deficiency in SLs at the early stages of the interaction, and indicating that during this phase OsZAS activity is required to induce SL production, possibly mediated by the Dwarf14-Like (D14L) signaling pathway. OsZAS is expressed in arbuscule-containing cells, and OsPT11prom::OsZAS transgenic lines, where OsZAS expression is driven by the OsPT11 promoter active in arbusculated cells, exhibit increased mycorrhization compared with the wild type. Overall, our results show that the genetic manipulation of OsZAS activity in planta leads to a different effect on AM symbiosis from that of exogenous zaxinone treatment, and demonstrate that OsZAS influences the extent of AM colonization, acting as a component of a regulatory network that involves SLs.
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