ArticlePlant cell reports2022
ipa1 improves rice drought tolerance at seedling stage mainly through activating abscisic acid pathway.
Article in Plant cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 33 citations in OpenAlex.
- Mutual potentiation of IPA1 and OsNPR1 enhances rice immunity.The Plant cell · 2026Article
- OsSPL14 and OsNF-YB9/YC8-12 subunits cooperate to enhance grain appearance quality by promoting Waxy and PDIL1-1 expression in rice.Plant communications · 2025Article
- OsCactin positively regulates the drought stress response in rice.Plant cell reports · 2024Article
- Molecular Mechanisms and Regulatory Pathways Underlying Drought Stress Response in Rice.International journal of molecular sciences · 2024Review
- OsMAPK6 positively regulates rice cold tolerance at seedling stage via phosphorylating and stabilizing OsICE1 and OsIPA1.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Genome- and Transcriptome-wide Association Studies to Discover Candidate Genes for Diverse Root Phenotypes in Cultivated Rice.Rice (New York, N.Y.) · 2023Article
- Abscisic Acid Regulates Carbohydrate Metabolism, Redox Homeostasis and Hormonal Regulation to Enhance Cold Tolerance in Spring Barley.International journal of molecular sciences · 2023Article
- IPA1 improves drought tolerance by activating SNAC1 in rice.BMC plant biology · 2023Article
- Drought and global hunger: biotechnological interventions in sustainability and management.Planta · 2022Review
- The coordinated regulation mechanism of rice plant architecture and its tolerance to stress.Frontiers in plant science · 2022Review
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Authors and funding
12 authors at 1 institution in 1 country.
Funding
Abstract
key messageipa1 enhances rice drought tolerance mainly through activating the ABA pathway. It endows rice seedlings with a more developed root system, smaller leaf stomata aperture, and enhanced carbon metabolism. Drought is a major abiotic stress to crop production. IPA1 (IDEAL PLANT ARCHITECTURE 1)/OsSPL14 encodes a transcription factor and has been reported to function in both rice ideal plant architecture and biotic resistance. Here, with a pair of IPA1 and ipa1-NILs (Near Iso-genic Lines), we found that ipa1 could significantly improve rice drought tolerance at seedling stage. The ipa1 plants had a better-developed root system and smaller leaf stomatal aperture. Analysis of carbon-nitrogen metabolism-associated enzyme activity, gene expression, and metabolic profile indicated that ipa1 could tip the carbon-nitrogen metabolism balance towards an increased carbon metabolism pattern. In both the control and PEG-treated conditions, ABA content in the ipa1 seedlings was significantly higher than that in the IPA1 seedlings. Expression of the ABA biosynthesis genes was detected to be up-regulated, whereas the expression of ABA catabolism genes was down-regulated in the ipa1 seedlings. In addition, based on yeast one-hybrid assay and dual-luciferase assay, IPA1 was found to directly activate the promoter activity of OsHOX12, a transcription factor promoting ABA biosynthesis, and OsNAC52, a positive regulator of the ABA pathway. The expression of OsHOX12 and OsNAC52 was significantly up-regulated in the ipa1 plants. Combined with the previous studies, our results suggested that ipa1 could improve rice seedling drought tolerance mainly through activating the ABA pathway and that regulation of the ipa1-mediated ABA pathway will be an important strategy for improving drought resistance of rice.
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