ArticlePlant signaling & behavior2015
Characterization of Arabidopsis sterol glycosyltransferase TTG15/UGT80B1 role during freeze and heat stress.
Article in Plant signaling & behavior, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 43 citations in OpenAlex.
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- Advances and Challenges in Plant Sterol Research: Fundamentals, Analysis, Applications and Production.Molecules (Basel, Switzerland) · 2023Review
- Deuterium- and Alkyne-Based Bioorthogonal Raman Probes for In Situ Quantitative Metabolic Imaging of Lipids within Plants.JACS Au · 2023Article
- Drought Stress Stimulates the Terpenoid Backbone and Triterpenoid Biosynthesis Pathway to Promote the Synthesis of Saikosaponin inMolecules (Basel, Switzerland) · 2022Article
- Specific Changes inMetabolites · 2022Article
- UGT72, a Major Glycosyltransferase Family for Flavonoid and Monolignol Homeostasis in Plants.Biology · 2022Review
- Genome-wide identification, evolution and function analysis ofFrontiers in molecular biosciences · 2022Article
- Overexpression of WssgtL3.1 gene from Withania somnifera confers salt stress tolerance in Arabidopsis.Plant cell reports · 2021Article
- Tomato leaves under stress: a comparison of stress response to mild abiotic stress between a cultivated and a wild tomato species.Plant molecular biology · 2021Article
- Leaf Lipid Alterations in Response to Heat Stress ofPlants (Basel, Switzerland) · 2020Article
- Comparative population genomics reveals genetic divergence and selection in lotus, Nelumbo nucifera.BMC genomics · 2020Article
- Inactivation of UDP-Glucose Sterol Glucosyltransferases EnhancesFrontiers in plant science · 2019Article
- RiceFrontiers in plant science · 2018Article
- Article
- Tomato UDP-Glucose Sterol Glycosyltransferases: A Family of Developmental and Stress Regulated Genes that Encode Cytosolic and Membrane-Associated Forms of the Enzyme.Frontiers in plant science · 2017Article
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Authors and funding
6 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Sterol glycosyltransferases regulate the properties of sterols by catalyzing the transfer of carbohydrate molecules to the sterol moiety for the synthesis of steryl glycosides and acyl steryl glycosides. We have analyzed the functional role of TTG15/UGT80B1 gene of Arabidopsis thaliana in freeze/thaw and heat shock stress using T-DNA insertional sgt knockout mutants. Quantitative study of spatial as well as temporal gene expression showed tissue-specific and dynamic expression patterns throughout the growth stages. Comparative responses of Col-0, TTG15/UGT80B1 knockout mutant and p35S:TTG15/UGT80B1 restored lines were analyzed under heat and freeze stress conditions. Heat tolerance was determined by survival of plants at 42°C for 3 h, MDA analysis and chlorophyll fluorescence image (CFI) analysis. Freezing tolerance was determined by survival of the plants at -1°C temperature in non-acclimatized (NA) and cold acclimatized (CA) conditions and also by CFI analysis, which revealed that, p35S:TTG15/UGT80B1 restored plants were more adapted to freeze stress than TTG15/UGT80B1 knockout mutant under CA condition. HPLC analysis of the plants showed reduced sterol glycoside in mutant seedlings as compared to other genotypes. Following CA condition, both β-sitosterol and sitosterol glycoside quantity was more in Col-0 and p35S:TTG15/UGT80B1 restored lines, whereas it was significantly less in TTG15/UGT80B1 knockout mutants. From these results, it may be concluded that due to low content of free sterols and sterol glycosides, the physiology of mutant plants was more affected during both, the chilling and heat stress.
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