Issue 12, 2021

Nanoelicitors with prolonged retention and sustained release to produce beneficial compounds in wines

Abstract

Methyl jasmonate (MeJ), an elicitor able to trigger plant defence responses, is a natural and clean alternative to the use of hazardous pesticides. However, the efficient application of MeJ in fields is very limited due to its poor water solubility, thermal stability and phytotoxicity at the high dose required to produce beneficial effects in plants. Here, a novel nanoelicitor (nano-MeJ) was prepared through the functionalization of biocompatible calcium phosphate nanoparticles. The resulting nanocomposite produced a significant increase of beneficial compounds (phytoalexins) in grapes and wines at low MeJ dosage. Indeed, results from in vivo field experiments on Monastrell vineyards (Vitis vinifera L.) revealed that grapes treated with nano-MeJ provided red wines with high content of beneficial stilbenes, similar to the levels obtained with conventional treatments but applying 10 times higher MeJ dosage. We demonstrated that the nanoparticles protect and retain MeJ on the surface of the leaves over long periods of time. This protective action along with the slow release provides a prolonged supply of the resistance-inductor elicitor through the leaves, resulting in a significant efficiency increase. Additionally, the nanocomposite was stable for long periods of time (more than 175 days) and exhibited lower cytotoxicity compared to MeJ, which are important features for its efficient and safe use in agriculture.

Graphical abstract: Nanoelicitors with prolonged retention and sustained release to produce beneficial compounds in wines

Supplementary files

Article information

Article type
Paper
Submitted
02 juin 2021
Accepted
06 oct. 2021
First published
07 oct. 2021
This article is Open Access
Creative Commons BY-NC license

Environ. Sci.: Nano, 2021,8, 3524-3535

Nanoelicitors with prolonged retention and sustained release to produce beneficial compounds in wines

B. Parra-Torrejón, G. B. Ramírez-Rodríguez, M. J. Giménez-Bañón, J. D. Moreno-Olivares, D. F. Paladines-Quezada, R. Gil-Muñoz and J. M. Delgado-López, Environ. Sci.: Nano, 2021, 8, 3524 DOI: 10.1039/D1EN00504A

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