Transcriptomic and physiological approaches to decipher cold stress mitigation exerted by brown-seaweed extract application in tomato

Frontiers in Plant Science

Plant Science

Christian Hermans¹  Andrea Monti²  Elena Pagani²  Ali Baghdadi²  Walter Zegada-Lizarazu²  Andrea Baglieri³  Matteo Borella⁴  Serenella Nardi⁴  Claudia Chiodi⁴  Piergiorgio Stevanato⁴  Giovanni Bertoldo⁴  Saptarathi Deb⁴  Maria Cristina Della Lucia⁴  Silvia Celletti⁵  Francesco Magro⁶  Francesca Mangione⁶ 

[1] Crop Production and Biostimulation Laboratory (CPBL), Brussels Bioengineering School, Universitè libre de Bruxelles, Brussels, Belgium;Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Bologna, Italy;Department of Agriculture Food Environment (Di3A), University of Catania, Catania, Italy;Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padua, Padua, Italy;Department of Life Sciences (DSV), University of Siena, Siena, Italy;Sipcam Italia S.p.A. Belonging Together with Sofbey SA to the Sipcam Oxon S.p.A. Group, Pero, Italy;

关键词: biostimulant;    brown seaweed extract;    cold stress;    transcriptome;    plant physiology;    antioxidant molecules;    tomato;   

DOI  :  10.3389/fpls.2023.1232421

 received in 2023-05-31, accepted in 2023-07-26,  发布年份 2023

来源: Frontiers

【 摘 要 】

Chilling temperatures represent a challenge for crop species originating from warm geographical areas. In this situation, biostimulants serve as an eco-friendly resource to mitigate cold stress in crops. Tomato (Solanum lycopersicum L.) is an economically important vegetable crop, but quite sensitive to cold stress, which it encounters in both open field and greenhouse settings. In this study, the biostimulant effect of a brown-seaweed extract (BSE) has been evaluated in tomato exposed to low temperature. To assess the product effects, physiological and molecular characterizations were conducted. Under cold stress conditions, stomatal conductance, net photosynthesis, and yield were significantly (p ≤ 0.05) higher in BSE-treated plants compared to the untreated ones. A global transcriptomic survey after BSE application revealed the impact of the BSE treatment on genes leading to key responses to cold stress. This was highlighted by the significantly enriched GO categories relative to proline (GO:0006560), flavonoids (GO:0009812, GO:0009813), and chlorophyll (GO:0015994). Molecular data were integrated by biochemical analysis showing that the BSE treatment causes greater proline, polyphenols, flavonoids, tannins, and carotenoids contents.The study highlighted the role of antioxidant molecules to enhance tomato tolerance to low temperature mediated by BSE-based biostimulant.

【 授权许可】

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Copyright © 2023 Borella, Baghdadi, Bertoldo, Della Lucia, Chiodi, Celletti, Deb, Baglieri, Zegada-Lizarazu, Pagani, Monti, Mangione, Magro, Hermans, Stevanato and Nardi