Kaolin modulates ABA and IAA dynamics and physiology of grapevine under Mediterranean summer stress

Dinis, Lia-Tânia; Bernardo, Sara; Luzio, Ana; Pinto, Glória; Meijón, Mónica; Pintó‐Marijuan, Marta; Cotado, Alba; Correia, Carlos M.; Moutinho-Pereira, José

doi:10.1016/j.jplph.2017.11.007

Cited by 51 publications

(40 citation statements)

References 56 publications

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“…Increased plant productivity results from insect control with Kl has also been documented [42,43]. This work, as well as a previous one done by our group in red grape cultivars in the Douro valley (NE Portugal) [44] reinforce that the treatment of grapevine leaves with the inert clay mineral kaolin increases also physiological capacity of plants [44]. The clay particles protect leaves from excessive radiation leading to a lower leaf temperature (Fig.…”

Section: Kaolin Modulates Grapevine Plant Physiology and Pests Controlsupporting

confidence: 78%

Overview of Kaolin Outcomes from Vine to Wine: Cerceal White Variety Case Study

Dinis¹,

Bernardo²,

Matos³

et al. 2020

Preprint

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Kaolin protective effect was assessed in a white grapevine cultivar ‘Cerceal’ in ‘Alentejo’ Region (southeast Portugal) where plants face extreme conditions during summer season. We addressed the hypothesis that kaolin effects lead to several changes in leaves, fruits and wine characteristics on the primary and secondary metabolism. Results showed that kaolin reduces leaf temperature which provoke an improvement in physiological parameters such as net photosynthesis and water use efficiency. This protection interferes with berries colour, leaving them more yellowish, and an increase in phenolic compounds were observed in all fruit tissues (skin, seed and pulp). Also, both berry and wine characteristics were strongly affected, with an increase of tartaric and malic acid and consequently high total acidity, while the sugar concentration decreased 8.9% in berries provoking a low wine alcohol level. Results also showed that kaolin induces high potassium, magnesium and iron, and low copper and aluminum concentrations. Moreover, the control wine showed higher content of esters related with hostile notes whereas wine from kaolin treated vines presented higher content of esters associated with fruity notes. Overall, the results strengthen the promising nature of kaolin application as summer stress mitigation strategy protecting grapevine plants and improving fruits quality and more balanced wines.

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Section: Kaolin Modulates Grapevine Plant Physiology and Pests Controlsupporting

confidence: 78%

Overview of Kaolin Outcomes from Vine to Wine: Cerceal White Variety Case Study

Dinis¹,

Bernardo²,

Matos³

et al. 2020

Preprint

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“…Hormones are essential regulators of plant stress responses, with abscisic acid (ABA), ethylene, and auxins, representing the most preponderant for the defense mechanisms acquired by plants (Pieterse et al 2012). Several studies extensively reported the oxidative effects of environmental stresses on plant responses and their interaction with hormones (Spoel and Dong 2008;Cramer et al 2011;Dinis et al 2018). Changes in ABA concentrations are correlated with abiotic stress regulation, while biotic stress responses are in turn mediated by other hormones such as salicylic acid, ethylene, and jasmonic acid (Rejeb et al 2014).…”

Section: Hormonal Balancementioning

confidence: 99%

“…Many authors have focused their research on the development of environmentally friendly practices, like kaolin application, to sustain yield and quality in a challenging climate, through the reduction of leaf and fruit berry surface temperature, thus improving the antioxidant machinery (Glenn 2012;Boari et al 2015;Dinis et al 2015). In fact, foliar application of solar protectants, has already shown promising results regarding grapevine increased yield, physiological performance, and general fruit quality potential, in the context of climate change at a local scale (Coniberti et al 2013;Dinis et al 2016;Bernardo et al 2017;Dinis et al 2017;Conde et al 2018;Dinis et al 2018). Nitrogen composition in must also plays an important role on grape and wine quality potential, affecting yeast metabolism, fermentation kinetics, the amino acid content, and synthesis of volatile fermentative compounds, since the amino acids are precursors of volatile compounds (Bell and Henschke 2005;Arias-Gil et al 2007).…”

Section: Application Of Protective Compoundsmentioning

confidence: 99%

Grapevine abiotic stress assessment and search for sustainable adaptation strategies in Mediterranean-like climates. A review

Bernardo

Dinis

Machado

et al. 2018

Agron. Sustain. Dev.

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Foreseen climate change points to shifts in agricultural production patterns worldwide, which may impact ecosystems directly, as well as the economic and cultural contexts of the wine industry. Moreover, the combined effects of environmental threats (light, temperature, and water relations) at different scales are expected to impair natural grapevine mechanisms, decreasing yield and the quality of grapes. Hence, the interaction between several factors, such as climate, terroir features, grapevine stress responses, site-specific spatial-temporal variability, and the management practices applied, which represents and effective challenge for sustainable Mediterranean viticulture, allowed researchers to develop adaptive strategies to cope with environmental stresses. Here, we review the effects of abiotic stresses on Mediterranean-like climate viticulture and the impacts of summer stress on grapevine growth, yield, and quality potential, as well as the subsequent plant responses and the available adaptation strategies for winegrowers and researchers. Our main findings are as follows: (1) environmental stresses can trigger dynamic responses in grapevines, comprising photosynthesis, phenology, hormonal balance, berry composition, and the antioxidant machinery; (2) field research methodologies, laboratory techniques, and precision viticulture are essential tools to evaluate grapevine performance and the potential quality for wine production; and (3) advances in the existing adaptation strategies are vital to maintain sustainability and regional wine identity in a changing climate. Also, these topics suggest that rational and focused management of grapevines may enlighten grapevine summer stress responses and improve the resilience of agro-ecosystems under harsh conditions. Despite the challenge of developing different strategic responses, winegrowers should clearly define their objectives, so applied research can provide rational technical support for the decision making process towards sustainable viticulture.

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“…Moreover, it has been used in controlling pierce's disease in viticulture [14], interception of sun burn in fruits [15,16], and to control photon flux density in tree species [17,18]. Its use has been demonstrated as an effective short-term climate change mitigation strategy in Mediterranean vineyards, e.g., by reflecting infrared radiation [1,16], reducing heat stress [19][20][21], and by improving qualitative characteristics [20,[22][23][24] in grapevine. Kaolin application has been recently recommended for sustainable viticulture for winegrowers to meet various challenges of changing climatic conditions, especially in Mediterranean-like climates [25].…”

Section: Introductionmentioning

confidence: 99%

Silicates of Potassium and Aluminium (Kaolin); Comparative Foliar Mitigation Treatments and Biochemical Insight on Grape Berry Quality in Vitis vinifera L. (cv. Touriga National and Touriga Franca)

Singh

Afonso

Nogueira

et al. 2020

Biology

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Grapevine physiology is influenced by several environmental factors, such as temperature, precipitation, potential evapotranspiration, and sunshine hours. Due to climatic changes, effects in grapevine physiology and consequently on the grape berry composition and quality have been observed. This work aims to make a comparative study of the effect of foliar mitigation treatment with kaolin (5%) and potassium silicates (0.1% and 0.05%) on the grape berry quality; namely on berry weight, pH, probable alcohol, total phenolics, tannins, total anthocyanins, monomeric anthocyanins, calcium, potassium, and magnesium composition from Portuguese grapevines (Vitis vinifera L. cv. Touriga Nacional and Touriga Franca). The results suggested that the phenolic composition and anthocyanin content differs between treatments while other parameters showed distinct behavior among the different applications. Qualitative parameters observed in the present study suggested non-significant changes upon both the applications.

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Kaolin modulates ABA and IAA dynamics and physiology of grapevine under Mediterranean summer stress

Cited by 51 publications

References 56 publications

Overview of Kaolin Outcomes from Vine to Wine: Cerceal White Variety Case Study

Overview of Kaolin Outcomes from Vine to Wine: Cerceal White Variety Case Study

Grapevine abiotic stress assessment and search for sustainable adaptation strategies in Mediterranean-like climates. A review

Silicates of Potassium and Aluminium (Kaolin); Comparative Foliar Mitigation Treatments and Biochemical Insight on Grape Berry Quality in Vitis vinifera L. (cv. Touriga National and Touriga Franca)

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