Academic Journal of Environment & Earth Science, 2025, 7(4); doi: 10.25236/AJEE.2025.070409.
Xi Wang
Huainan Municipal Landscaping Administration, Huainan, China
This study investigates the adaptive strategies of four hydrophilic tree species—Metasequoia glyptostroboides, Taxodium distichum var. imbricatum, Taxodium distichum, and Taxodium 'Zhongshanshan'—under water stress conditions using metabolomics approaches. A pot-based gradient water stress experiment was conducted, followed by sampling at multiple time points to analyze leaf and root metabolites via GC-MS and LC-MS. Physiological indicators such as photosynthetic rate and stomatal conductance were also monitored. The results showed that water stress triggered significant changes in sugar, amino acid, and secondary metabolism, with different response patterns among species. Glycolysis and the TCA cycle were activated to ensure energy supply, while proline and flavonoid accumulation enhanced osmotic adjustment and antioxidant capacity. Taxodium distichum and Taxodium 'Zhongshanshan' exhibited more balanced and robust stress responses. The findings provide a molecular basis for understanding the physiological adaptation of hydrophilic trees to water stress and offer practical insights for species selection and ecological restoration in forestry.
Water Stress; Hydrophilic Tree Species; Metabolomics; Sugar Metabolism; Amino Acid Metabolism; Secondary Metabolites; Stress Resistance; GC-MS; LC-MS
Xi Wang. Adaptive Strategies of Hydrophilic Plants under Water Stress. Academic Journal of Environment & Earth Science (2025), Vol. 7, Issue 4: 73-78. https://doi.org/10.25236/AJEE.2025.070409.
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