terclim by ICS banner
IVES 9 IVES Conference Series 9 Characterization of the adaptive mechanisms of grapevine rootstocks to iron deficiency induced by lime stress

Characterization of the adaptive mechanisms of grapevine rootstocks to iron deficiency induced by lime stress

Abstract

Iron (Fe) deficiency is one of the important nutritional disorders for grapevine growing in alkaline and calcareous soils. Although Fe is an abundant element in soil, several factors limiting its availability, particularly the high levels of calcium carbonate or bicarbonate in soil, leading to a remarkable reduction in grapevine growth and productivity. The use of Fe chlorosis-tolerant rootstocks seems to be a cost-effective and efficient way to maintain Fe balance. Morphological and physiological changes occur in plants to cope with low Fe availability, including enhancement of ferric chelate reductase activity and altering root system by increasing lateral roots and root hairs. However, the mechanisms underlying these responses grapevine rootstocks are still unclear. Our study aimed to decipher the physiological and molecular mechanisms to prevent iron deficiency chlorosis under high lime conditions of different tolerant rootstocks. Our results confirmed different responses related to rootstock genotype (Fercal, 3309C) in root biomass, ferric chelate reductase activity and organic acid contents depending on direct (-Fe) or indirect (+Fe+BiC) Fe deficiency. Currently expression studies are performed to conclude on Fe uptake, transport and relocation, including their regulation signals e.g. transcription factors and phytohormones. Findings of this study will contribute to our knowledge on rootstock traits and optimize our strategy for vine nutrition.  

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Sarhan Khalil1, Arianna Lodovici2, Rebeka Strah3, Astrid Forneck1, Laura Zanin2, Nicola Tomasi2, Maruša Pompe Novak3, Michaela Griesser*1

1 University of Natural Resources and Life Sciences, Vienna (BOKU), Institute of Viticulture and Pomology, Austria
2 University of Udine, Department of Agricultural, Food, Environmental and Animal Sciences, Italy
3 National Institute of Biology, Department of Biotechnology and Systems Biology, Slovenia

Contact the author*

Keywords

Fe deficiency, Chlorosis, Bicarbonate, Ferric chelate reductase, RNA-seq

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

REVEALING THE ORIGIN OF BORDEAUX WINES WITH RAW 1D-CHROMATOGRAMS

Understanding the composition of wine and how it is influenced by climate or wine-making practices is a challenging issue. Two approaches are typically used to explore this issue. The first approach uses chemical
fingerprints, which require advanced tools such as high-resolution mass spectrometry and multidimensional chromatography. The second approach is the targeted method, which relies on the widely available 1-D GC/MS, but involves integrating the areas under a few peaks which ends up using only a small fraction of the chromatogram.

Read More

Biodiversity and biocontrol ability of Trichoderma natural populations in soil vineyards from Castilla y León region (Spain)

Trichoderma is a microorganism present in many agricultural soils and some of its species could be used as natural biological control agents. In this work, the presence of natural populations of Trichoderma was estimated in soil vineyard and its biocontrol capacity against Phaeoacremonium minimum, one of the main agent causals of grapevine trunk diseases instead of using pesticides. Moreover, physicochemical variables in soil such as pH, organic matter and nutrients were evaluated to determine a possible correlation to natural populations of Trichoderma.

Read More

Effects of mulching with municipal solid waste (MSW)-compost on the soil microbiota and decomposition activity in a productive vineyard in Apulia (Italy)

Application of municipal solid waste (MSW)-compost as a mulching material in vineyards supports sustainable practices and aligns with both circular economy and zero-waste principles.

Read More

Characterisation of Sicilian Nero d’Avola grape and wine: A preliminary study

The chemical composition and the sensory characteristics of wine result from dynamic interactions between several factors including grape variety, soil, viticultural techniques, climate conditions, yeasts metabolism, oenological approaches. Recently, Grigg et al.

Read More

Crown procyanidin quantification in red wines, rosé wines and Port wines

Condensed grape tannins play a major role in the organoleptic properties and quality of red wine. Recently, a new sub-family of macrocyclic condensed tannins has been identified in red wine and named “crown tannins”. Indeed, the first compound of the family identified and characterised by NMR was the crown procyanidin tetramer which is composed of a macrocyclic structure composed of four (-)-epicatechins link together by B-type interflavanoid linkage in the following an alternative sequences of C4-C8 and C4-C6 linkage. The 3D structure of this unusual crown procyanidin family reveals a central cavity in the molecule [1].

Read More