ArticleFrontiers in plant science2025
Exogenous 24-epibrassinolide mitigates damage in grape seedlings under low-temperature stress.
Article in Frontiers in plant science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- Melatonin and Brassinolide Enhance Cold Tolerance inPlants (Basel, Switzerland) · 2026Article
- Identification and Expression Analysis of the Potato (Plants (Basel, Switzerland) · 2026Article
- Brassinolide Improves the Tolerance ofBiology · 2026Article
- Phytohormone-Mediated Regulation of Plant Cold Stress Tolerance: Signaling, Hormonal Crosstalk, and Translational Perspectives.International journal of molecular sciences · 2026Review
- Exogenous 24-epibrassinolide enhances chilling tolerance inFrontiers in plant science · 2026Article
- Comparative transcriptome profiling reveals a role of 24-epibrassinolide in flavonoid biosynthesis in Gleditsia sinensis.BMC plant biology · 2025Article
- Brassinosteroids Enhance Low-Temperature Resistance by Promoting the Formation of Sugars in Maize Mesocotyls.Plants (Basel, Switzerland) · 2025Article
- Screening for cold tolerance resources in maize seedlings and analysis of leaf cell responses.Frontiers in plant science · 2025Article
- Effect of cell wall polysaccharides on the peelability in table grape berries.Frontiers in plant science · 2025Article
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6 authors.
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Abstract
Grapes are cultivated worldwide and have a high economic value as fruit trees. However, winter frost damage and spring cold damage have limited the sustainability of the table grape industry. A novel plant growth regulator, 24-epibrassinolide (EBR), exhibits an essential regulatory function in plant life cycles, especially in its unique mechanism against various environmental stresses. We treated 'Lihongbao' grapes with exogenous EBR (0.2 μM), brassinazole (BRZ, 10 μM), EBR + BRZ (0.2 μM +10 μM), and deionized water (CK). We investigated the effect of exogenous EBR on 'Lihongbao' grape seedlings under low-temperature stress (4°C) at different periods (0 h, 12 h, 24 h, 48 h, and 96 h). We explored physiological mitigation mechanisms of exogenous EBR in grape seedlings with low-temperature injury by observing the impacts of EBR treatment on the physical and biochemical indices such as phenotypes and anatomical structures, photosynthetic characteristics, chlorophyll fluorescence parameters, antioxidant systems, and osmoregulatory substances. Exogenous EBR had an inhibitory effect on cold stress in grape seedlings at different treatment periods compared with the CK group. Based on plant phenotype and anatomical structure, the leaves of the grape seedlings treated with exogenous EBR showed no signs of water loss or wilting. At 96 h under low-temperature stress, the lower epidermal thickness (LET), palisade tissue thickness (PT), palisade-to-sea ratio (P/S), and blade structural compactness (CTR) of the exogenous EBR-treated grape leaves were significantly reduced by 6.71%, 19.59%, 14.52%, and 11.65% compared with the CK group, respectively. Chlorophyll a (Chl a), chlorophyll b (Chl b), total chlorophyll (Chl total), carotenoids (carotenoid), transpiration rate (Tr), and stomatal conductance (Gs) contents of exogenous EBR-treated grape leaves were significantly upregulated by 30.24%, 48.52%, 39.75%, 34.67%, 704.66%, and 277.27%, respectively. The intercellular CO
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