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Moderately Elevated Temperature Offsets the Adverse Effects of Waterlogging Stress on Tomato

文献类型： 外文期刊

作者： Wen, Junqin 1 ; Sui, Shumei 1 ; Tian, Jie 1 ; Ji, Yanhai 2 ; Wu, Zhen 3 ; Jiang, Fangling 3 ; Ottosen, Carl-Otto 4 ; Zhong, Qiwen 1 ; Zhou, Rong 1 ;

作者机构： 1.Qinghai Univ, Acad Agr & Forestry Sci, Key Lab Qinghai Tibetan Plateau Biotechnol, Minist Educ, Xining 810016, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Natl Engn Res Ctr Vegetables, Beijing Vegetable Res Ctr, Beijing 100097, Peoples R China

3.Nanjing Agr Univ, Coll Hort, Nanjing 210095, Peoples R China

4.Aarhus Univ, Dept Food Sci, Agro Food Pk 48, DK-8200 Aarhus, Denmark

关键词： tomato; temperature; waterlogging; gas exchange; water-use efficiency

期刊名称：PLANTS-BASEL （ 影响因子：4.0； 五年影响因子：4.4 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 14 期

页码：

收录情况： SCI

摘要： Global warming and waterlogging stress due to climate change are expected to continue influencing agricultural production worldwide. In the field, two or more environmental stresses usually happen simultaneously, inducing more complex responses in plants compared with individual stresses. Our aim was to clarify how the two key factors (temperature and water) interacted and influenced physiological response and plant growth in tomatoes under ambient temperature, moderately elevated temperature, waterlogging stress, and moderately elevated temperature and waterlogging stress. The results showed that leaf photosynthesis was inhibited by waterlogging stress but enhanced by elevated temperature, as shown by both the light- and temperature-response curves. The elevated temperature decreased leaf water-use efficiency, but enhanced plant growth and fresh and dry weights of plants under both normal water supply and waterlogging stress conditions. Elevated temperature generally decreased the anthocyanin and flavonol index in tomato leaves compared with the control temperature, regardless of water status. The increase in the optimal temperature was more pronounced in plants under normal irrigation than under waterlogging stress. Waterlogging stress significantly inhibited the root length, and leaf number and area, while the moderately elevated temperature significantly enhanced the leaf number and area. Overall, the moderately elevated temperature offset the effects of waterlogging stress on tomato plants, as shown by leaf gas exchange, plant size, and dry matter accumulation. Our study will improve the understanding of how tomatoes respond to increasing temperature and excess water.

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