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…

Selected-Ion Flow Tube Mass Spectrometry: A high-throughput technology to investigate the impact of climate and harvest date on the volatilome of Grenache berries

Climate change is increasingly affecting wine production, leading to substantial variations in wine composition from one vintage to another.

Read More

Evaluation of two transmittance meters in estimating chlorophyll and nitrogen concentrations in grapevine cultivars

Two transmittance-based chlorophyll meters (SPAD-502 and CCM-200) were evaluated in estimating chlorophyll (Chl) and nitrogen (N) levels in grapevine leaves.

Read More

Identification, distribution, and sensory contribution of (R/S)-abhexone enantiomers to the aroma of old red wines

The evolution of the aroma of red wines during bottle ageing is a complex phenomenon resulting from chemical changes that can, give rise to the characteristic ageing bouquet reminiscent of mint, truffle, empyreumatic or spicy notes.

Read More

The impact of acetaldehyde on phenolic evolution of a free-SO2 red wine

Some wine producers, in good years, can produce free-SO2 red wines and decide to add the minimum amount of sulphur dioxide only at bottling. To manage this addition

Read More

Effect of one-year cover crop and arbuscular mycorrhiza inocululation in the microbial soil community of a vineyard

The microbial composition of the soil is an important factor to consider in viticulture, since its influence on the “terroir” and on the organoleptic properties of the wine have been demonstrated. Different agronomic techniques have the potential to modify the composition and functionality of the soil microbial community. Maintaining green covers is known to increase soil microbial diversity. The direct application of inoculum of beneficial microorganisms to the soil has also been used to increase their abundance. However, the environmental conditions of each site seem to have a determining weight in the result of these practices. In this study, we compared the effect on the microbial community of a cover crop with legumes in autumn and the inoculation of grapevines with commercial inoculum bases on Rhizophagus irregularis and Funeliformis mosseae in the previous spring. The study has been carried out in a vineyard in Binissalem, Mallorca, Spain. After applying the treatments, we will analyze the soil microbial communities using the data obtained from Illumina amplification of soil DNA from the 16S and ITS regions to analyze bacteria and fungi community, respectively. In addition, we will record the physicochemical characteristics of the soil at each sampling point. The result showed that agronomic management, in the short term, has less influence than soil characteristics on the composition of the soil microbiome. With these results, we can conclude that in a vineyard, agricultural techniques should focus on improving the characteristics of the soil to improve the biodiversity of the soil microbiota.

Read More