Unravelling the biostimulant activity of a protein hydrolysate in lettuce plants under optimal and low N availability: a multi‐omics approach
Rattachement africain : it. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The application of protein hydrolysates (PH) biostimulants is considered a promising approach to promote crop growth and resilience against abiotic stresses. Nevertheless, PHs bioactivity depends on both the raw material used for their preparation and the molecular fraction applied. The present research aimed at investigating the molecular mechanisms triggered by applying a PH and its fractions on plants subjected to nitrogen limitations. To this objective, an integrated transcriptomic-metabolomic approach was used to assess lettuce plants grown under different nitrogen levels and treated with either the commercial PH Vegamin® or its molecular fractions PH1(>10 kDa), PH2 (1-10 kDa) and PH3 (<1 kDa). Regardless of nitrogen provision, biostimulant application enhanced lettuce biomass, likely through a hormone-like activity. This was confirmed by the modulation of genes involved in auxin and cytokinin synthesis, mirrored by an increase in the metabolic levels of these hormones. Consistently, PH and PH3 upregulated genes involved in cell wall growth and plasticity. Furthermore, the accumulation of specific metabolites suggested the activation of a multifaceted antioxidant machinery. Notwithstanding, the modulation of stress-response transcription factors and genes involved in detoxification processes was observed. The coordinated action of these molecular entities might underpin the increased resilience of lettuce plants against nitrogen-limiting conditions. In conclusion, integrating omics techniques allowed the elucidation of mechanistic aspects underlying PH bioactivity in crops. Most importantly, the comparison of PH with its fraction PH3 showed that, except for a few peculiarities, the effects induced were equivalent, suggesting that the highest bioactivity was ascribable to the lightest molecular fraction.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Unravelling the biostimulant activity of a protein hydrolysate in lettuce plants under optimal and low N availability: a multi‐omics approach
- Date Crossref
- 01/05/2024
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Free University of Bozen-Bolzano pays non établi dans la noticeUniversité ou école supérieure
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Università Cattolica del Sacro Cuore pays non établi dans la noticeUniversité ou école supérieure
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Federico II University Hospital pays non établi dans la noticeÉtablissement de santé
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University of Naples Federico II Department of Agricultural Sciences pays non établi dans la noticeUniversité ou école supérieure
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Università degli Studi della Tuscia pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Agricultural pays non établi dans la noticeUniversité ou école supérieure
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These authors contributed equally to the work pays non établi dans la noticeInstitution
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Department of Agriculture and Forest Sciences University of Tuscia Viterbo Italy Department of Agriculture and Forest Sciences pays non établi dans la noticeUniversité ou école supérieure
Free University of Bozen-Bolzano, Università Cattolica del Sacro Cuore et Federico II University Hospital, avec 5 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.