AI Article Synopsis
- Waterlogging stress harms plant growth, but Zanthoxylum armatum's tolerance to it is not well understood.
- A specific gene, alcohol dehydrogenase 1 (ZaADH1), plays a key role in helping this tree species manage waterlogging by influencing various metabolites.
- Overexpressing ZaADH1 in the model plant Arabidopsis thaliana enhanced growth and resistance to waterlogging by boosting carbohydrate production, suggesting strategies for improving waterlogging tolerance in Z. armatum.
Article Abstract
Waterlogging stress negatively affects plant growth and survival. However, the ability of Zanthoxylum armatum, a valuable tree species, to tolerate and adapt to waterlogging stress remains poorly understood. Here we report how alcohol dehydrogenase 1 (ZaADH1) confers waterlogging stress tolerance in Z. armatum. ZaADH1 expression was induced after waterlogging treatment. ZaADH1 overexpression increased waterlogging stress by modulating the metabolite levels of the ADH enzyme, soluble sugar, and trehalose, promoting glycolysis and carbohydrate metabolism. The overexpression of ZaADH1 in Arabidopsis thaliana increased the total plant area and chlorophyll content, thereby increasing resistance to waterlogging stress. Physiological and overexpression transcriptome analyses in A. thaliana indicated that ZaADH1 overexpressing lines generated more carbohydrates to meet energy demands, employing a "static" strategy to increase tolerance to waterlogging stress, which confirms the conservation of the ADH1 response to waterlogging stress and represents a potential crucial measure for improving waterlogging tolerance in Z. armatum.
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| http://dx.doi.org/10.1016/j.plaphy.2024.109133 | DOI Listing |
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