Journal
HORTICULTURAE
Volume 8, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/horticulturae8030189
Keywords
abiotic stresses; omics; plant extracts; proteomics; seaweeds; metabolomics; transcriptomic
Categories
Funding
- Azione A-Linea 2-Piano di Sostegno alla Ricerca 2019, Universita degli Studi di Milano, MULTI-BIO project
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Biostimulants are agronomic tools that can reduce fertilizer applications and improve crop yield. Molecular studies help understand the mechanisms of biostimulants, and omics studies provide overall evaluation of crop response and performance.
Biostimulants are agronomic tools that have been gaining importance in the reduction of fertilizer applications. They can improve the yield of cropping systems or preventing crop yield losses under abiotic stresses. Biostimulants can be composed of organic and inorganic materials and most of the components are still unknown. The characterization of the molecular mechanism of action of biostimulants can be obtained using the omics approach, which includes the determination of transcriptomic, proteomic, and metabolomic changes in treated plants. This review reports an overview of the biostimulants, taking stock on the recent molecular studies that are contributing to clarify their action mechanisms. The omics studies can provide an overall evaluation of a crop's response, connecting the molecular changes with the physiological pathways activated and the performance with or without stress conditions. The multiple responses of plants treated with biostimulants must be correlated with the phenotype changes. In this context, it is also crucial to design an adequate experimental plan and statistical data analysis, in order to find robust correlations between biostimulant treatments and crop performance.
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