ArticleJournal of plant research2021
A leucoanthocyanidin dioxygenase gene (RtLDOX2) from the feral forage plant Reaumuria trigyna promotes the accumulation of flavonoids and improves tolerance to abiotic stresses.
Article in Journal of plant research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed, 32 citations in OpenAlex.
- Insights into stress responsiveness of MusaANS promoter- an anthocyanidin synthase gene from banana.Protoplasma · 2026Article
- Genome-wide exploration of 2OGD superfamily in Raphanus sativus: unveiling two ANS genes as key players in anthocyanin biosynthesis.Genetica · 2025Article
- Multi-omics dissection of COBMC plant biology · 2025Article
- The Antarctic moss 2-oxoglutarate/Fe(II)-dependent dioxygenases (Pn2-ODD2) enhanced the tolerance to drought and oxidative stress.BMC plant biology · 2025Article
- Screening of MYB1R1 interaction withPeerJ · 2025Article
- Integrated Analysis of Transcriptome and Metabolome Provides Insights into Flavonoid Biosynthesis of Blueberry Leaves in Response to Drought Stress.International journal of molecular sciences · 2024Article
- RADseq-based population genomic analysis and environmental adaptation of rare and endangered recretohalophyte Reaumuria trigyna.The plant genome · 2024Article
- The Role of Anthocyanins in Plant Tolerance to Drought and Salt Stresses.Plants (Basel, Switzerland) · 2023Review
- Systematic analysis and expression of Gossypium 2ODD superfamily highlight the roles of GhLDOXs responding to alkali and other abiotic stress in cotton.BMC plant biology · 2023Article
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- Diverse Physiological Roles of Flavonoids in Plant Environmental Stress Responses and Tolerance.Plants (Basel, Switzerland) · 2022Review
- Overexpression ofInternational journal of molecular sciences · 2022Article
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- A Mutation in theInternational journal of molecular sciences · 2022Article
- Response of Anthocyanin Accumulation in Pepper (International journal of molecular sciences · 2022Article
- Role ofPlants (Basel, Switzerland) · 2022Article
- A Moss 2-Oxoglutarate/Fe(II)-Dependent Dioxygenases (2-ODD) Gene of Flavonoids Biosynthesis Positively Regulates Plants Abiotic Stress Tolerance.Frontiers in plant science · 2022Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Reaumuria trigyna, a Tamaricaceae archaic recretohalophyte, is an important feral forage plant in the desert steppe of northwestern China. We identified two significantly differentially expressed leucoanthocyanidin dioxygenase genes (RtLDOX/RtLDOX2) and investigated the function and characteristics of RtLDOX2. RtLDOX2 from R. trigyna was rapidly upregulated by salt, drought, and abscisic acid, consistent with the stress-related cis-regulatory elements in the promoter region. Recombinant RtLDOX2 converted dihydrokaempferol to kaempferol in vitro, and was thus interchangeable with flavonol synthase, a dioxygenase in the flavonoid pathway. Transgenic plants overexpressing RtLDOX2 accumulated more anthocyanin and flavonols under abiotic stresses, speculating that RtLDOX2 may act as a multifunctional dioxygenase in the synthesis of anthocyanins and flavonols. Overexpression of RtLDOX2 enhanced the primary root length, biomass accumulation, and chlorophyll content of salt-, drought-, and ultraviolet-B-stressed transgenic Arabidopsis. Antioxidant enzyme activity; proline content; and expression of antioxidant enzyme, proline biosynthesis, and ion-transporter genes were increased in transgenic plants. Therefore, RtLDOX2 confers tolerance to abiotic stress on transgenic Arabidopsis by promoting the accumulation of anthocyanins and flavonols. This in turn increases reactive oxygen species scavenging and activates other stress responses, such as osmotic adjustment and ion transport, and so improves tolerance to abiotic stresses.
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