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Dominant and Priming Role of Waterlogging in Tomato at e[CO 2 ] by Multivariate Analysis.
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- Author(s): Zhou, Rong; Jiang, Fangling; Yu, Xiaqing; Abdelhakim, Lamis; Li, Xiangnan; Rosenqvist, Eva; Ottosen, Carl-Otto; Wu, Zhen
- Source:
International Journal of Molecular Sciences; Oct2022, Vol. 23 Issue 20, p12121-N.PAG, 18p- Subject Terms:
- Source:
- Additional Information
- Abstract: The frequency of waterlogging episodes has increased due to unpredictable and intense rainfalls. However, less is known about waterlogging memory and its interaction with other climate change events, such as elevated CO
2 concentration (e[CO2 ]). This study investigated the combined effects of e[CO2 ] and two rounds of waterlogging stress on the growth of cultivated tomato (Solanum lycopersicum) and wild tomato (S. pimpinellifolium). The aim is to elucidate the interaction between genotypes and environmental factors and thereby to improve crop resilience to climate change. We found that two rounds of treatments appeared to induce different acclimation strategies of the two tomato genotypes. S. pimpinellifolium responded more negatively to the first-time waterlogging than S. lycopersicum, as indicated by decreased photosynthesis and biomass loss. Nevertheless, the two genotypes respond similarly when waterlogging stress recurred, showing that they could maintain a higher leaf photosynthesis compared to single stress, especially for the wild genotype. This showed that waterlogging priming played a positive role in stress memory in both tomato genotypes. Multivariate analysis showed that waterlogging played a dominant role when combined with [CO2 ] for both the cultivated and wild tomato genotypes. This work will benefit agricultural production strategies by pinpointing the positive effects of e[CO2 ] and waterlogging memory. [ABSTRACT FROM AUTHOR] - Abstract: Copyright of International Journal of Molecular Sciences is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
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