Grapevine adaptation to drought: New candidate genes for the genotype-dependent response

Cardone, Maria Francesca; Perniola, Rocco; Catacchio, Claudia Rita; Alagna, Fiammetta; Rotunno, Silvia; Crupi, Pasquale; Antonacci, Donato; Velasco, Riccardo; Ventura, Mario; Bergamini, Carlo

doi:10.1051/bioconf/20191501016

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Vitis vinifera is a relatively drought-tolerant plant species (Cardone et al, 2019), but one of the few crop species considered to be sensitive to Cl -, along with citrus (Citrus ssp. L.), avocado (Persea americana L.), soybean (Glycine max L.) and faba bean (Vicia faba L.) (Li et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Is foliar Cl- concentration the cause of photosynthetic decline in grapevine during mild salinity?

et al. 2021

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Moderate levels of Cl- have been associated with grapevine salt tolerance. The hypothesis to be tested in this work is: photosynthesis in grapevine is negatively correlated with foliar Cl- concentration. To further test this hypothesis, multiple mild salinity experiments on four different Vitis genotypes (Cabernet-Sauvignon, Riparia Gloire, Ramsey and SC2) were conducted and photosynthesis, ion concentrations and gene expression responses were quantified. The salt-tolerant rootstock Ramsey had greater Cl- exclusion capabilities than V. vinifera cultivars both during rooted cutting greenhouse experiments and three years of field-grafted experiments; SC2 also excluded Cl-. Differential gene expression indicated that salinity affected transcript abundance more in salt-sensitive genotypes (97.7 % of DEGs in the dataset), especially chloroplast-related transcripts. The transcript abundances of known anion transporters were determined and a family of putative B transporters was associated with the Cl- exclusion phenotype. Photosynthesis and growth were maintained in Ramsey and SC2 under mild salinity. However, photosynthesis declined in Cabernet-Sauvignon with isosmotic 20 mM salt concentrations of NaCl, KCl or NaNO3, independent of the salt type. While foliar Cl- concentrations did correlate with salt tolerance during control and NaCl conditions, it was not found to be the cause of photosynthetic decline in Vitis during mild salinity.

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Section: Introductionmentioning

confidence: 99%

Is foliar Cl- concentration the cause of photosynthetic decline in grapevine during mild salinity?

et al. 2021

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“…Studies modulated for 'Chardonnay's drought sensitivity characterized this variety as "anisohydric". At the physiological level, stomata closure is one of the first response to water stress, in order to prevent the hydraulic failure (Charrier et al, 2018;Cardone et al, 2019). Intrinsic OA closely expressed by the mean values of 0.932 ± 0.157 in 'Chardonnay' 15 Şt., 0.885 ± 0.152 in 'Fetească albă' 97 Şt., 0.818 ± 0.090 in 'Italian Riesling' and 0.816 ± 0.051 in 'Şarbă' 2 Şt.…”

Section: Expression Of Intrinsic Oamentioning

confidence: 99%

Pollen grain expression of osmotic adjustment as a screening method on drought tolerance in several wine and table grape genotypes (Vitis vinifera L.)

et al. 2020

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Osmotic adjustment is one of the important mechanisms to adapt to drought and it is the only one which is activated under any level of water stress in the plant cells. Grapevine pollen grains response was tested to osmotic stress in fourteen genotypes, initiated by immersion in 55% or 65% polyethylene glycol solutions without and with addition of potassium chloride, to estimate the expressions of osmotic adjustment. The pollen grain test found differences both in the measurements of projected area cytoplasm and expressions of osmotic adjustment present in the cells. Italian Riesling increased pollen grains cytoplasm in PEG solutions with added KCl much more than other genotypes and had the high values for both expressions of induced and overall osmotic adjustment. The results obtained for expression of induced osmotic adjustment underlined the high K+ accumulation capacity of ‘Italian Riesling’, ‘Burgund mare’ 86 Şt., ‘Muscat d’Adda’ 22 Şt., ‘Muscat Ottonel’ 16 Şt., ‘Pinot gris’ 14 Şt. and ‘Argessis’. The lack of correlation between expressions of induced and intrinsic osmotic adjustment indicated that induced osmotic adjustment expressed by K+ might use different mechanisms that are activated at the time of water stress with different levels of solute accumulation. Because the accumulation of K+ in the cells is important in all developmental stages and, in grape yield and quality, pollen responses to induced osmotic adjustment expressed by K+ could be used as a screening method, for establishing the level of drought sensitivity in the grape varieties under water stress.

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Epigenomics: a new tool for the generation of climate resilient grapevines

Tan¹,

López²

2023

Front. Hortic.

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Climate change is expected to increase the occurrence of extreme environmental conditions. Viticulture, as agriculture in general, is highly dependent on climatic conditions, not only for yield but also for fruit quality, which is the most important factor affecting produce value at the farm-gate. This demands the development of novel plant breeding techniques that will lead to the accelerated production of more resilient grape varieties, as conventional breeding programs for perennials are often prolonged. Recent research has suggested that environmental conditions can activate a memory of stress that could result in a primed response to subsequent stress events. This is a process capable of increasing plant’s resilience to abiotic stimuli, allowing plants to better adapt to extreme environmental conditions. While the effect of priming has been observed in many plants, the underlying mechanisms are puzzling and seldom studied in perennial crops. A large body of research has been developed in the last decade linking response to stress, stress priming, and memory of stress with epigenetic mechanisms. This understanding of plant epigenetics has opened the door to the application of epigenetics to crop improvement, such as the use of epigenetic breeding for the generation of more resilient crops. Perennial crop agriculture in general, and viticulture in particular, would benefit from more in-depth knowledge on epigenetic memory of stress.

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Grapevine adaptation to drought: New candidate genes for the genotype-dependent response

Cited by 4 publications

References 21 publications

Is foliar Cl- concentration the cause of photosynthetic decline in grapevine during mild salinity?

Is foliar Cl- concentration the cause of photosynthetic decline in grapevine during mild salinity?

Pollen grain expression of osmotic adjustment as a screening method on drought tolerance in several wine and table grape genotypes (Vitis vinifera L.)

Epigenomics: a new tool for the generation of climate resilient grapevines

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