ArticlePlant molecular biology2016
Ectopic expression of UGT75D1, a glycosyltransferase preferring indole-3-butyric acid, modulates cotyledon development and stress tolerance in seed germination of Arabidopsis thaliana.
Article in Plant molecular biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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34 citing papers in PubMed, 64 citations in OpenAlex.
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- Integrated 16 S rRNA and transcriptome analysis reveal molecular and microbial mechanisms of cold-tolerant germination in hulless barley.BMC genomics · 2025Article
- Advances in seed hypoxia research.Plant physiology · 2024Article
- Combined BSA-Seq and RNA-Seq to Identify Potential Genes Regulating Fruit Size in Bottle Gourd (Plants (Basel, Switzerland) · 2024Article
- O-Glycosyltransferase GenePlants (Basel, Switzerland) · 2024Article
- Apple Glycosyltransferase MdUGT73AR4 Glycosylates ABA to Regulate Stomatal Movement Involved in Drought Stress.International journal of molecular sciences · 2024Article
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- Al-induced CsUGT84J2 enhances flavonol and auxin accumulation to promote root growth in tea plants.Horticulture research · 2023Article
- UDP-glucosyltransferase OsUGT75A promotes submergence tolerance during rice seed germination.Nature communications · 2023Article
- Comparative transcriptomic analysis of germinating rice seedlings to individual and combined anaerobic and cold stress.BMC genomics · 2023Article
- Transcriptome Dynamics of Rooting Zone and Leaves during In Vitro Adventitious Root Formation inPlants (Basel, Switzerland) · 2022Article
- Genome-Wide Association Study of Salt Tolerance-Related Traits during Germination and Seedling Development in anInternational journal of molecular sciences · 2022Article
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- The Phytotoxin Myrigalone A Triggers a Phased Detoxification Programme and InhibitsInternational journal of molecular sciences · 2022Article
- Glycosyltransferases: Mining, engineering and applications in biosynthesis of glycosylated plant natural products.Synthetic and systems biotechnology · 2022Article
- Genome-wide identification, evolution and function analysis ofFrontiers in molecular biosciences · 2022Article
- Biochemical Characterization of Recombinant UDPG-Dependent IAA Glucosyltransferase from Maize (International journal of molecular sciences · 2021Article
- Overexpression ofInternational journal of molecular sciences · 2020Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The formation of auxin glucose conjugate is proposed to be one of the molecular modifications controlling auxin homeostasis. However, the involved mechanisms and relevant physiological significances are largely unknown or poorly understood. In this study, Arabidopsis UGT75D1 was at the first time identified to be an indole-3-butyric acid (IBA) preferring glycosyltransferase. Assessment of enzyme activity and IBA conjugates in transgenic plants ectopically expressing UGT75D1 indicated that the UGT75D1 catalytic specificity was maintained in planta. It was found that the expression pattern of UGT75D1 was specific in germinating seeds. Consistently, we found that transgenic seedlings with over-produced UGT75D1 exhibited smaller cotyledons and cotyledon epidermal cells than the wild type. In addition, UGT75D1 was found to be up-regulated under mannitol, salt and ABA treatments and the over-expression lines were tolerant to osmotic and salt stresses during germination, resulting in an increased germination rate. Quantitative RT-PCR analysis revealed that the mRNA levels of ABA INSENSITIVE 3 (ABI3) and ABI5 gene in ABA signaling were substantially down-regulated in the transgenic lines under stress treatments. Interestingly, AUXIN RESPONSE FACTOR 16 (ARF16) gene of transgenic lines was also dramatically down-regulated under the same stress conditions. Since ARF16 functions as an activator of ABI3 transcription, we supposed that UGT75D1 might play a role in stress tolerance during germination through modulating ARF16-ABI3 signaling. Taken together, our work indicated that, serving as the IBA preferring glycosyltransferase but distinct from other auxin glycosyltransferases identified so far, UGT75D1 might be a very important player mediating a crosstalk between cotyledon development and stress tolerance of germination at the early stage of plant growth.
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