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.  

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…

Exploring the regulatory role of the grapevine MIXTA homologue in cuticle formation and abiotic stress resilience

The outer waxy layer of plant aerial structures, known as the cuticle, represents an important trait that can be targeted to increase plant tolerance against abiotic stresses exacerbated by environmental transition. The MIXTA transcription factor, member of the R2R3-MYB family, is known to affect conical shape of petal epidermal cells in Anthirrinum, cuticular thickness in tomato fruit and trichome formation and morphology in several crops. The aim of this study was to investigate the role of the grapevine MIXTA homologue by phenotypic and molecular characterization of overexpressing and knock-out grapevine lines.

Classification of “Valpolicella Superiore” wines in relation to aromatic composition: influence of geographical origin, vintage and aging

The Valpolicella appellation, mainly known for Amarone and Ripasso, is experiencing growing interest in Valpolicella Superiore (VS), a lighter red wine aligning with consumer demand. However, anecdotal evidence suggests different stylistic interpretations of VS, potentially causing consumer confusion.

Molecularly imprinted polymers: an innovative strategy for harvesting polyphenoles from grape seed extracts

Multiple sclerosis (MS) is a multifactorial autoimmune disease associating demyelination and axonal degeneration developing in young adults and affecting 2–3 million people worldwide. Plant polyphenols endowed with many therapeutic benefits associated with anti-inflammatory and antioxidant properties represent highly interesting new potential therapeutic strategies. We recently showed the safety and high efficiency of grape seed extract (GSE), a complex mixture of polyphenolics compounds comprising notably flavonoids and proanthocyanidins, in an experimental autoimmune encephalomyelitis (EAE) mouse model of MS.

Environmental and yearly influences on four Sicilian grape clones under climate change challenges

By the end of this century, up to 90% of traditional viticulture regions in the Mediterranean, including Sicily, are projected to face extinction due to escalating climate challenges such as severe droughts, heatwaves, and unseasonal rains.

Influence of the irrigation period in Tempranillo grapevine, under the edaphoclimatic conditions of the Duero river valley

Irrigation of vineyards is a matter of controversial arguments at areas of high quality wine production. Besides, the effects of the water in the plant are closer related to the water availability than to the irrigation regime.