terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Plastic debris at vines: carriers of pollutants in the environment?

Plastic debris at vines: carriers of pollutants in the environment?

Abstract

Modern agriculture employs large amounts of plastics, such as mulching and greenhouse films, thermal covers, plant protection tubes and tying tape. The latter two types are very common in viticulture. Guard tubes are employed to protect young vines from mechanic and atmospheric damage, whilst polymeric tying tape has replaced natural-origin materials to hold the canopy of vines. Both materials are made on synthetic polymers, which include a range of additives to improve their environmental stability remaining in the environment of vineyards for years. During this time, they are exposed to the range of pesticides (fungicides, insecticides and in a lesser extend herbicides) applied to vines. Tying tape fits within the category of meso-plastics, difficult to recover due to their abundance and limited size. After pruning, most of the tying tapes end in the soil of vineyards. Both types of materials are potential sources of microplastics during aging.

Depending on the affinity between pesticides and plastics, the latter can act as reservoirs of this kind of pollutants, contributing to their delayed release in the environment of vineyards, and/or serving as carriers of pesticides into the trophic web, and/or into surface waters due to wind and run-off transport. This presentation deals with the characterization of plastic debris collected from vineyards. Thus, the presence of pesticides residues in this matrix were determined, including a comparison with their levels in soil, and the study of the sorption/desorption processes of pesticides in new and aged samples of different types of vineyard plastics.

Residues of pesticides in plastic litter, collected from conventionally managed vineyards, varied from 100 ng g-1 to more than 10000 ng g-1. The range of compounds remaining in this matrix included not only moderately lipophilic pesticides, but also medium polarity species, i.e. metalaxyl, carbendazim and dimethomorph. The strength of interaction between pesticides and the two main types of plastic residues identified in vineyards (PE and PP) was mostly controlled by the degree of polymer weathering, which was characterized by FTIR in the total attenuated reflectance mode (ATR).

Acknowledgements: M.C. acknowledges a FPI contract to the Spanish Ministry of Science and Innovation. Funds received from Xunta de Galicia (project ED431C2021/06) are acknowledged.

DOI:

Publication date: October 5, 2023

Issue: ICGWS 2023

Type: Article

Authors

I. Rodríguez1*, M. Cobo-Golpe1, G.R. Gutierrez1, J. Álvarez1, V. Fernández1, P. Blanco2, M. Ramil1

1 Department of Analytical Chemistry, Nutrition and Food Sciences, IAQBUS – Institute of Research on Chemical and Biological Analysis, Universidade de Santiago de Compostela, R/Constantino Candeira SN, 15782 Santiago de Compostela, Spain
2 Estación de Viticultura e Enoloxía de Galicia (EVEGA-AGACAL), Ponte San Clodio s/n, 32428, Leiro-Ourense

Contact the author*

Keywords

plastic litter, vineyards, pesticides, occurrence, desorption

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Uncovering the interplay between Copper and SO2 tolerance in Saccharomyces cerevisiae

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.20.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...
Read More

The generation of suspended cell wall material may limit the effect of ultrasound in some varieties

The disruptive effect exerted by high-power ultrasound (US) on plant cell walls, natural barriers to the diffusion of compounds of interest during the maceration of red wines, is established as the reason behind the chromatic improvement that its treatment causes. However, sometimes this improvement is not observed, especially with short maceration times. The presence of a high quantity of suspended cell wall material, which formation is favored by the sonication, could be the cause of this lack of positive results since this cell wall material has a high affinity for phenolic compounds.

Read More

Impact of toasting and botanical origin on oak wood (Q. sp.) volatilome using untargeted GCxGC-ToFMS analysis

Many works have been carried out to identify the key aroma volatile compounds of oak wood (e.g., whisky-lactone, furfural, maltol, eugenol, guaiacol, vanillin) using conventional gas chromatography coupled with olfactometry and mass spectrometry (GC-O-MS). Inspired by recent untargeted approaches in the field of food “omics”, this work aims to extend our knowledge on the impact of cooperage process on the volatile composition of oak wood using two-dimensional comprehensive gas chromatography coupled with time of flight mass spectrometry (GCxGC-ToFMS).

Read More

Reduction of the height of the canopy in fruit set and in pea size: vegetative, productive and maturation effects, in cv. Verdejo

Global warming is accelerating the technological ripening of the grape, with a loss of acidity, which requires that vineyard management can delay ripening to avoid it. The source-sink relation is essential for grape ripening, since it affects the distribution of photosynthates and substances derived from plant metabolism. A work is proposed to know the response of the vineyard to the drastic reduction of the foliar surface by trim down the shoots in cv.

Read More

A comprehensive study on the effect of foliar mineral treatments on grapevine microbiota, flavonoid gene expression, and berry composition

Recently, foliar treatments with mineral-based compounds have shown positive effects on grapevine production by protecting grape from thermal excesses and reducing the decoupling between technological and phenolic maturity caused by climate change. Unraveling the effect of mineral particle applications on grape-associated microbes is pivotal for successful wine processing, due to the influence of the microbiota on wine composition and stability. To our knowledge, this is the first work that comprehensively studied the effects of kaolin and chabasite-rich zeolitites treatments on grape-related microorganisms (by real-time PCR quantification of total fungi, Hanseniospora uvarum, Metschnikowia pulcherrima, plant-associated bacteria and lactic acid bacteria), the expression of genes related to the flavonoid biosynthesis (PAL1, CHS1, F3H2, DFR, LDOX, UFGT, MYBA1, GST4, FLS4 genes) and the berry composition (°Brix, pH, acidity and anthocyanin concentrations) in cv. Sangiovese during ripening in two growing seasons (2019 and 2020).

Read More