terclim by ICS banner
IVES 9 IVES Conference Series 9 Effects of Silver Thiosulphate and Salicylic Acid on the long-term maintenance of the embryogenic callus of Vitis vinifera

Effects of Silver Thiosulphate and Salicylic Acid on the long-term maintenance of the embryogenic callus of Vitis vinifera

Abstract

New Plant Breeding Techniques (NPBTs) have the potential to revolutionize the genetic improvement of grapevine. However, the practical application of these techniques is limited by several challenges, such as the difficulty in generating embryogenic calluses, maintaining their competence during in vitro cultivation, and regenerating plants without defects. To overcome these challenges, we conducted a study to test the effect of two treatments on callus cultures derived from different grapevine varieties, with and without embryogenic competence. The tested substances were Silver Thiosulphate (STS) an ethylene inhibitor, and Salicylic Acid (SA), an elicitor with different effects depending on the concentration of use beyond the ethylene inhibitor activity. Our observations revealed a differential response to the treatments depending on the tested variety. In some varieties, STS treatment enhanced the embryogenic competence of the calluses, while also having a growth-depressing effect on the non-embryogenic calluses. In contrast, the effect of SA was more dose-dependent and varied across different varieties. In some cases, the highest tested concentration of SA had a growth-depressing effect on both embryogenic and non-embryogenic calluses, while in other cases, it only affected embryogenic calluses. Despite these variations, both STS and SA treatments showed promising results in enhancing embryogenic competence, and we are currently evaluating the regeneration of embryos from callus after these treatments and the combined effects of STS and SA. Our study highlights the importance of testing the efficacy of different treatments on multiple grapevine varieties to identify the most effective strategies for NPBT applications.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Lucia Rosaria Forleo1*, Bruna Suriano1, Flavia Angela Maria Maggiolini1, Margherita D’Amico1, Annalisa Prencipe2, Teodora Basile1, Riccardo Velasco1, Maria Francesca Cardone1, Carlo Bergamini1

1 Council for Agricultural Research and Economics -Research Center Viticulture and Enology (CREA-VE), Via Casamassima 148-70010 Turi (Ba), Italy
2 Department of Biosciences, Biotechnology and Environment, University of Bari “Aldo Moro”, 70125 Bari, Italy

Contact the author*

Keywords

embryogenic callus, ethylene inhibitor, silver thiosulphate, salicylic acid

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Mapping plant water status to indirectly assess variability in grape flavonoids and inform selective harvest decisions

Plant water stress affects grape (Vitis vinifera L.) berry composition and is variable in space due to variations in the physical environment at the growing site. Could we use water status maps as a sensitive tool to discriminate between harvest zones?

Read More

Dynamics of Saccharomyces cerevisiae population in spontaneous fermentations from Granxa D’Outeiro terroir (DOP Ribeiro, NW Spain)

Granxa D’Outeiro is a recovered ancient vineyard located in the heart of DOP Ribeiro, where traditional white grapevine varieties are growing under sustainable management. Spontaneous fermentations using grape must from Treixadura, Albariño, Lado, Godello, and Loureira varieties were carried out at experimental winery of Evega. Yeasts were isolated from must and at different stages of fermentation. Those colonies belonging to Saccharomyces cerevisiae were characterized at strain level by mDNA-RFLPs.

Read More

Stable or dynamic? How phenotypic plasticity could be key to select for grapevine adaptation?

Climate change will require the adaptation of agricultural systems and among the different means of adaptation, changing plant material is a promising strategy. In viticulture, different levels of diversity are currently exploited: clonal and varietal diversity for rootstocks and scions. A huge quantity of research aims to evaluate different genotypes in different environmental conditions to identify which ones are the best adapted and the most tolerant to future environmental conditions.

Read More

LCA: an effective, generalizable method for wine ecodesign? Advantages and limitations

Life cycle assessment (LCA) is an effective and comprehensive method for evaluating the environmental impact of a product, considering its entire life cycle. In the context of wine production, although the use of lca is gaining ground in viticulture, its application is still limited to the fine assessment of winemaking processes.

Read More

Quantification of red wine phenolics using ultraviolet-visible, near and mid-infrared spectroscopy combined with chemometrics

The use of multivariate statistics to correlate chemical data to spectral information seems as a valid alternative for the quantification of red wine phenolics. The advantages of these techniques include simplicity and cost effectiveness together with the limited time of analysis required. Although many
publications on this subject are nowadays available in the literature most of them only reported feasibility
studies. In this study 400 samples from thirteen fermentations including five different cultivars plus 150
wine samples from a varying number of vintages were submitted to spectrophotometric and chromatographic phenolic analysis.

Read More