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…

Zoning methods in relation to the plant

The characterization of the plant is the obliged pathway between the environment and the product. The responses of the plant amplify or reduce the variations of the environment, while determining directly the type and the quality of the products. These results are inscribed inside the Viticultural Terroir Unit (VTU). VTU is the complex interaction between the Basic Terroir Unit or BTU (interaction mesoclimate x soil/subsoil), the genotype (variety x rootstock), the management system, the oenological technologies. Thus, at the most complex level, a global biological triptych is found again : environment (source) x plant (structure) = produced and exchanged substances.

Read More

Terroir effects on the response of Tempranillo grapevines to irrigation in four locations of Spain: grape and must composition

This work discusses the effects of soil and weather conditions on the grape composition of cv. Tempranillo in four different locations of Spain, during the 2008-2011 seasons.

Read More

Identification of riboflavin low producer yeasts to prevent the light-struck taste in white wines

Wine quality maintenance during the storage is a fundamental aspect for both wine producers and consumers. Nowadays, great attention has been given to the light effect

Read More

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.

Read More

Exogenous dsRNA applications to identify novel candidate susceptibility genes to downy mildew

One of the major threats to viticulture is represented by fungal pathogens. Plasmopara viticola, an oomycete causing grapevine downy mildew, is one of the principal causes of grape production losses. The most efficient management strategies are represented by a combination of agronomical practices, fungicides’ applications, and use of resistant varieties. Plant resistance is conferred by the presence of resistance (R) genes. Opposed to them, susceptibility (S) genes are encoded by plants and exploited by pathogens to promote infection. Loss or mutation of S genes can limit the ability of pathogens to infect the host. By exploiting post-transcriptional gene silencing, known as RNA intereference (RNAi), it is possible to knock-down the expression of S genes, promoting plant resistance.

Read More