 IVES 9 IVES Conference Series 9 Macrowine 9 Macrowine 2021 9 Grapevine diversity and viticultural practices for sustainable grape growing 9 Methyl jasmonate versus nano methyl jasmonate: effects on anthocyanins mature evolution in monastrell grapes

Methyl jasmonate versus nano methyl jasmonate: effects on anthocyanins mature evolution in monastrell grapes

Abstract

AIM: The climate change is afecting particulary to the South of Spain, with high temperatures. It is important to develop new strategies in order to mantain the quality of wines. One of this strategies is the use of elicitors which increase the defense in plants and also increase the content of secondary metabolites, such as anthocyanins . On the other hand, the use of use of nanoparticules joined to methyl jasmonate could diminish the concentrations applied in plants but obtaining similar effects in Monastrell anthocyanins profile as using only methyl jasmonate.

METHODS: The treatments were carried out in an experimental vineyard of Monastrell located in South East of Spain, foliar application of each treatament, by triplicate, in verasion and a week later. The differents treataments were i) control, ii) methyl jasmonate and iii) nano methyl jasmonate (nanoparticles of hydroxyapatite doped with methyl jasmonate). A study of mature evolution was done, the samples were taken at the previous moment of the firts time treataments and every ten days and finaly in the moment of harvest. The analysis were performance by HPLC following the Gil Muñoz et al. (1) procedure.

RESULTS: The treatment with methyl jasmonate increased the anthocyanins composition in the differents points of maturation and also in the harvest moment. Similar results were obtained in the treatment with methyl jasmonate and hydroxyapatite doped with methyl jasmonate.

CONCLUSIONS

The used of nanotechnology in the treatments with methyl jasmonate would allow to reduce the dose of this elicitor obtaining similar results, in the way to reduce costs and contribute to a sustainable agriculture.

DOI:

Publication date: September 2, 2021

Issue: Macrowine 2021

Type: Article

Authors

María José Giménez Bañón

Murcian Institute of Agricultural and Food Research and Development (IMIDA), D.F Paladines-Quezada (a) J.D Moreno-Olivares (a) B. Parra-Torrejón (b) G.B Ramírez-Rodríguez (b) J.M Delgado-López (b) J.I Fernández-Fernández (a) R. Gil-Muñoz (a) a Murcian Institute of Agricultural and Food Research and Development (IMIDA) b Inorganic Chemistry Department, Science Faculty, Granada University

Contact the author

Keywords

rippening, elicitor, nanotechnology, sustainable agriculture, anthocyanins, grape

Citation

Development of a novel UAV based approach for assessing the severity of spring frost and hail damages in vineyards

A solid feature of climate change is that the frequency and severity of weather extremes are increasing. Ranking European countries for the number of crop failures related to extreme events reports France on top followed by Italy and Spain (COM 2021).

Vitis vinifera ‘Ráthay’ on the rootstocks ‘Kober 5BB’, ‘Fercal’, and ‘3309 C’: results of a long-term field trial

Context and purpose of the study. Ráthay is an Austrian red quality wine variety with increased resistance to fungi.

Matériel végétal et valorisation des terroirs viticoles

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.19.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...

Grapevine xylem embolism resistance spectrum reveals which varieties have a lower mortality risk in a future dry climate

Wine growing regions have recently faced intense and frequent droughts that have led to substantial economical losses, and the maintenance of grapevine productivity under warmer and drier climate will rely notably on planting drought-resistant cultivars. Given that plant growth and yield depend on water transport efficiency and maintenance of photosynthesis, thus on the preservation of the vascular system integrity during drought, a better understanding of drought-related hydraulic traits that have a significant impact on physiological processes is urgently needed. We have worked towards this end by assessing vulnerability to xylem embolism in 30 grapevine commercial varieties encompassing red and white Vitis vinifera varieties, hybrid varieties characterized by a polygenic resistance for powdery and downy mildew, and commonly used rootstocks. These analyses further allowed a global assessment of wine regions with respect to their varietal diversity and resulting vulnerability to stem embolism. Hybrid cultivars displayed the highest vulnerability to embolism, while rootstocks showed the greatest resistance. Significant variability also arose among Vitis vinifera varieties, with Ψ12 and Ψ50 values ranging from -0.4 to -2.7 MPa and from -1.8 to -3.4 MPa, respectively. Cabernet franc, Chardonnay and Ugni blanc featured among the most vulnerable varieties while Pinot noir, Merlot and Cabernet Sauvignon ranked among the most resistant. In consequence, wine regions bearing a significant proportion of vulnerable varieties, such as Poitou-Charentes, France and Marlborough, New Zealand, turned out to be at greater risk under drought. These results highlight that grapevine varieties may not respond equally to warmer and drier conditions, outlining the importance to consider hydraulic traits associated with plant drought tolerance into breeding programmes and modeling simulations of grapevine yield maintenance under severe drought. They finally represent a step forward to advise the wine industry about which varieties and regions would have the lowest risk of drought-induced mortality under climate change.

Polyphenolic profile and dietary fiber content of skins and seeds from unfermented and fermented grape pomace

The valorization of winemaking byproducts is subordinated to the knowledge of their chemical characteristics. This work concerned the determination of the polyphenolic profile and the dietary fiber content of skins and seeds from unfermented and fermented pomace of different cultivars (Moscato bianco, Cortese, Arneis, Pinot Noir, Barbera, Grignolino, Nebbiolo), sampled from some wineries in the Piedmont area (Italy) during the 2020 harvest.