terclim by ICS banner
IVES 9 IVES Conference Series 9 Open-GPB 9 Open-GPB-2024 9 Flash - New biotechnological tools 9 Exploring the impact of NPR3 gene silencing on the interaction between grapevine and mycorrhizal fungi through genome editing

Exploring the impact of NPR3 gene silencing on the interaction between grapevine and mycorrhizal fungi through genome editing

Abstract

One of the main plant defence mechanisms is the Systemic Acquired Resistance (SAR) mediated by Salicylic Acid (SA). This is a heightened and broad-spectrum immune response initiated by the exposure to pathogens, inducing resistance not only in the infected site, but also throughout the entire plant. It was demonstrated that plant immune system can be regulated by two classes of SA receptors: NONEXPRESSOR OF PR GENES 1 (NPR1) and NPR1-LIKE PROTEIN 3 and 4 (NPR3/NPR4). While NPR1 is required for SA-induction followed by the expression of pathogenesis-related (PR) protein and resistance against pathogens, NPR3/NPR4 serve as transcriptional co-repressors of SA-responsive genes. The aim of this work was to trigger SAR by suppressing NPR3, and to investigate how plant response affects its ability to recruit beneficial microorganisms, specifically arbuscular mycorrhizal fungi (AMF). To this aim, embryogenic calli were obtained from anther and ovaries of grapevine (cultivar Chardonnay) and NPR3 knock out lines were achieved using CRISPR/Cas9 technique. Three regenerated lines, along with a backbone and a wild-type lines, were inoculated in axenic condition with the AMF Rhizophagus irregularis to test their recruitment ability. After the acclimatation, plants were transferred in the greenhouse and forty-five days later both roots and leaves were collected. Root colonization was evaluated using the Trouvelot method and significant differences in colonization level were observed among plants. Consequently, root DNA and RNA were extracted for metabarcoding and RNAseq analysis. Additionally, metabolomic analysis targeting metabolites involved in plant-microorganism interactions are ongoing.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Ivan Bevilacqua1,2, Loredana Moffa1, Serena Varotto2, Raffaella Balestrini3, Walter Chitarra1,3, Luca Nerva1,3

1Council for Agricultural Research and Economics – Research Centre for Viticulture and Enology (CREA-VE). Via XXVIII Aprile, 26, 31015 Conegliano (TV), Italy
2University of Padua, Department of Agronomy, Food, Natural Resources, Animals and Environment, Agripolis, Viale dell’Università 16 – 35020 Legnaro (Pd)
3National Research Council of Italy – Institute for Sustainable Plant Protection (IPSP-CNR). Strada delle Cacce, 73, 10135 Torino (TO), Italy 

Contact the author*

Keywords

CRISPR/Cas9, grapevine, arbuscular mycorrhizal fungi (AMF), Systemic Acquired Resistance (SAR), multi-omics

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Spatial suitability analysis for site selection of vineyards using biophysical models and computational intelligence

Developing a sustainable agricultural production system and acquiring the full potential of land resources requires employing land-use assessment. This entails knowledge of the climate, soil, and topography of the area of interest.

Read More

Atypical aging and hydric stress: insights on an exceptionally dry year

Atypical aging (ATA) is a white wine fault characterized by the appearance of notes of wet rag, acacia blossoms and naphthalene, along with the vanishing of varietal aromas. 2-aminoacetophenone (AAP) – a degradation compound of indole-3-acetic acid (IAA) – is regarded as the main sensorial and chemical marker responsible for this defect. About the origin of ATA, a stress reaction occurring in the vineyard has been looked as the leading cause of this defect. Agronomic, climatic and pedological factors are the main triggers and among them, drought stress seems to play a crucial role.[1]

Read More

OENOLOGICAL POTENTIAL OF AUTOCHTHONOUS SACCHAROMYCES CEREVISIAE STRAINS AND THEIR EFFECT ON THE PRODUCTION OF TYPICAL SAVATIANO WINES

Due to the global demand for terroir wines, the winemaking industry has focused attention on exploiting the local yeast microflora of each wine growing region to express the regional character and enhance the sensory profile of wines such as varietal typicity and aroma complexity. The objective of the present study was to isolate and compare the indigenous strains of Saccharomyces cerevisiae present in different vineyards in the Mesogeia – Attiki wine region (Greece), evaluate their impact on chemical composition and sensory profile of Savatiano wines and select the most suitable ones for winemaking process.

Read More

Investigating biotic and abiotic stress responses in grafted grapevine cultivars: A comparative study of Cabernet-Sauvignon and Cabernet Volos on M4 rootstock

When grapevine plants are transplanted into already established vineyards, they face multiple challenges, including adverse climate, heavy metal accumulation from agronomic practices [1], and pressure from highly adapted pathogens [2].

Read More

Understanding the impact of rising temperatures due to climate change on aromatic compositions in Malbec wines from Mendoza, Argentina

Mendoza is one of Argentina’s most important and outstanding wine regions producing the renowned Malbec wines due to its optimal soil and weather conditions. However, the effects of 21st-century climate change would negatively impact Malbec wines quality. This study investigated the effect of temperature increase and the impact of plant hormone abscisic acid (ABA) used to mitigate the negative effect of temperature increase on Malbec wines aromatic composition through GC-MS. Four treatments were applied on vines at field condition: Control, Control + 3 ºC, ABA and ABA + 3 ºC.

Read More