ArticleRice (New York, N.Y.)2019
OsIAGT1 Is a Glucosyltransferase Gene Involved in the Glucose Conjugation of Auxins in Rice.
Article in Rice (New York, N.Y.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 42 citations in OpenAlex.
- PgUGT84K2, a Panax ginseng glycosyltransferase, catalyses IBA glycosylation and enhances abiotic stress tolerance in transgenic Arabidopsis.Plant biology (Stuttgart, Germany) · 2026Article
- Dehydrogenase WRD1 regulates plant growth by modulating cell wall formation, ROS homeostasis, and auxin signaling in rice.The Plant journal : for cell and molecular biology · 2026Article
- Identification and fine mapping of a locus controlling multi-main-stem trait in Brassica napus.BMC plant biology · 2026Article
- Identification of a UDP-glucuronosyl/UDP-glucosyltransferase involved in rice seedling height regulation.BMC plant biology · 2026Article
- Identification and Functional Characterization of Anthocyanidin 3-O-Glucosyltransferases OsA3GT1 and OsA3GT2 in Black Rice.Rice (New York, N.Y.) · 2026Article
- Upregulation of an IAA-GlucosyltransferasePlants (Basel, Switzerland) · 2025Article
- Overexpression ofPlants (Basel, Switzerland) · 2025Article
- Transcriptomic analysis reveals cloquintocet-mexyl-inducible genes in hexaploid wheat (Triticum aestivum L.).PloS one · 2025Article
- An auxin research odyssey: 1989-2023.The Plant cell · 2024Review
- THOUSAND-GRAIN WEIGHT 6, which is an IAA-glucose hydrolase, preferentially recognizes the structure of the indole ring.Scientific reports · 2024Article
- Advances in auxin synthesis, transport, and signaling in rice: implications for stress resilience and crop improvement.Frontiers in plant science · 2024Review
- Deficiency of Auxin Efflux CarrierPlants (Basel, Switzerland) · 2023Article
- Article
- Disruption of the riceProceedings of the National Academy of Sciences of the United States of America · 2023Article
- Al-induced CsUGT84J2 enhances flavonol and auxin accumulation to promote root growth in tea plants.Horticulture research · 2023Article
- Chemical genetic screening identifies nalacin as an inhibitor of GH3 amido synthetase for auxin conjugation.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Genome-wide identification, evolution and function analysis ofFrontiers in molecular biosciences · 2022Article
- N-glucosyltransferase GbNGT1 from ginkgo complements the auxin metabolic pathway.Horticulture research · 2021Article
- Identification of Candidate Genes for Root Traits Using Genotype-Phenotype Association Analysis of Near-Isogenic Lines in Hexaploid Wheat (International journal of molecular sciences · 2021Article
- Biochemical Characterization of Recombinant UDPG-Dependent IAA Glucosyltransferase from Maize (International journal of molecular sciences · 2021Article
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Authors and funding
8 authors at 1 institution in 2 countries.
Funding
Abstract
backgroundIn cereal crop rice, auxin is known as an important class of plant hormone that regulates a plethora of plant growth and development. Glycosylation of auxin is known to be one of the important mechanisms mediating auxin homeostasis. However, the relevant auxin glucosyltransferase (GT) in rice still remains largely unknown.
resultsIn this study, using known auxin glucosyltransferases from other species as queries, twelve putative auxin UDP-glycosyltransferase (UGT) genes were cloned from rice and the one showing highest sequence similarity, named as OsIAGT1, was expressed as recombinant protein. In vitro enzymatic analysis showed that recombinant OsIAGT1 was capable of catalyzing glucosylation of IAA, IBA and other auxin analogs, and that OsIAGT1 is quite tolerant to a broad range of reaction conditions with peak activity at 30 °С and pH 8.0. OsIAGT1 showed favorite activity towards native auxins over artificially synthesized ones. Further study indicated that expression of OsIAGT1 can be upregulated by auxin in rice, and with OsIAGT1 overexpressing lines we confirmed that OsIAGT1 is indeed able to glucosylate IAA in vivo. Consistently, ectopic expression of OsIAGT1 leads to declined endogenous IAA content, as well as upregulated auxin synthesis genes and reduced expression of auxin-responsive genes, which likely leads to the reduced plant stature and root length in OsIAGT1 overexpression lines.
conclusionOur result indicated that OsIAGT1 plays an important role in mediating auxin homeostasis by catalyzing auxin glucosylation, and by which OsIAGT1 regulates growth and development in rice.
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