ArticleRice (New York, N.Y.)2023
OsAAI1 Increases Rice Yield and Drought Tolerance Dependent on ABA-Mediated Regulatory and ROS Scavenging Pathway.
Article in Rice (New York, N.Y.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 23 citations in OpenAlex.
- High-density field-based 3D reconstruction of rice architecture across diverse cultivars for genome-wide association studies.Plant methods · 2026Article
- Exogenous regulators enhance strawberry yield under heat stress conditions.Scientific reports · 2026Article
- Stress-tolerance genes in rice: bridging gene discovery, functional validation, and breeding applications.Frontiers in plant science · 2026Review
- Integrated Transcriptome-Metabolome Analysis Reveals the Flavonoids Metabolism Mechanism of Maize Radicle in Response to Low Temperature.Plants (Basel, Switzerland) · 2025Article
- Taming wild genomes: perspectives on mechanisms governing differential introgression in exotic rice germplasm and their applications in breeding.Frontiers in plant science · 2025Article
- Involvement of the Metallothionein gene OsMT2b in Drought and Cadmium Ions Stress in Rice.Rice (New York, N.Y.) · 2024Article
- Enhancing Coleoptile Length of Rice Seeds under Submergence throughPlants (Basel, Switzerland) · 2024Article
- Overexpression ofPlants (Basel, Switzerland) · 2024Article
- Deciphering molecular regulation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) signalling networks in Oryza genus amid environmental stress.Plant cell reports · 2024Review
- Comparative Cytological and Gene Expression Analysis Reveals That a Common Wild Rice Inbred Line Showed Stronger Drought Tolerance Compared with the Cultivar Rice.International journal of molecular sciences · 2024Article
- Rice OsANN9 Enhances Drought Tolerance through Modulating ROS Scavenging Systems.International journal of molecular sciences · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
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Abstract
In this study, we investigated the function of OsAAI1 in yield and drought tolerance by constructing overexpression line OE-OsAAI1 and mutant line osaai1. Bioinformatics analysis showed that the AAI gene-OsAAI1- belongs to the HPS_like subfamily of the AAI_LTSS superfamily, and OsAAI1 was localized in the nucleus. The expression of OsAAI1 was significantly induced by ABA and drought stress. OsAAI1 overexpression (OE19) significantly increased, and gene mutant (osaai1-1) repressed plant height, primary root length, lateral root number, grain size and yield in rice. Moreover, physiological and biochemical analyses showed that osaai1 was sensitive to drought stress, while OE19 enhanced the drought tolerance in rice. DAB and NBT staining revealed that under drought treatment, osaai1 accumulated a large amount of ROS compared with the wild type, while OE19 accumulated the least, and CAT, APX, GPX, GR activities were higher in OE19 and lower in osaai1, suggesting that OE19 improves rice tolerance to drought stress by enhancing ROS scavenging ability. OE19 also induce the expression of ABA-mediated regulatory pathway genes and enhance accumulation of ABA content in rice seedling. Predictably, OE19 displayed enhanced sensitivity to ABA, and ROS accumulation was significantly higher than in wild type and osaai1 under 3 µM ABA treatment. Thus, these results suggest that OsAAI1 is a positive regulator of rice yield and drought tolerance dependent on the ABA-mediated regulatory and ROS scavenging pathway.
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