Research

Pruning, training system, canopy management, terroir; are among the main research expertise of Alain.

Alain has conducted collaborative researches in the domain of grapevine physiological responses to abiotic factors (water, light and temperature) within integrated and multi disciplinary approaches from the vineyard to the wine.  These researches have been done in Australia, France and South Africa mainly. 

Alain was project leader and/or chief investigator in various funded project in France, South Africa and Australia.  These projects were mainly related to grapevine physiology and the effect of abiotic factors (water, light and temperature) on grapevine and fruit development and composition. Within integrated approaches from the vineyard to the wine, for most projects wine tasting and sensory analyses were performed with the contribution of expert colleagues.

At INRA Pech Rouge (2017), with two of my former PhD students:  Drs Hernan Ojeda (left) and Flor Etchebarne (middle)

Working on Cabernet Sauvignon ripening with Professor Zhenping Wang (Ningxia University, China, 2018)

Multidisciplinary and integrated R&D projects are needed to answer to wine industry complex questions

The few publications listed below give a flavour of the reserach results obtained through the funded projects and the PhD students main achievements. 

A few scentific publications to share: 

Antalick G., Šuklje K., Blackman J.W., Schmidtke L.M. and Deloire A. 2021. Performing sequential harvests based on berry sugar accumulation (mg/berry) to obtain specific wine sensory profiles, OenoOne, DOI:10.20870/oeno-one.2021.55.2.4527 Anatlick et al., 2021. Sequential Harvest-OENO-ONE..pdf

L. M. Schmidtke, G. Antalick, K. Šuklje, J. W. Blackman, J. Boccard, A. Deloire. 2020. Cultivar, site or harvest date: the gordian knot of wine terroir. Metabolomics (2020) 16:52, https://doi.org/10.1007/s11306-020-01673-3 Schmidtke2020_Article_CultivarSiteOrHarvestDateTheGo.pdf

Erna H. Blancquaert, Anita Oberholster, Jorge M. Ricardo-da-Silva  and Alain J. Deloire, 2019. Grape Flavonoid Evolution and Composition Under Altered Light and Temperature Conditions in Cabernet Sauvignon (Vitis vinifera L.), Frontiers in Plant Sciences, 10, doi: 10.3389/fpls.2019.01062 Blancquaert et al., 2019 - Berry flavonoids and light.pdf

E. H. Blancquaert, A. Oberholster, J. M. Ricardo-da-Silva, A. J. Deloire, 2019. Effect of Light Quality on Fruit Growth, Composition and the Sensory Impact of the Wines, S. Afr. J. Enol. Vitic., Vol. 40, No. 2. DOI: https://doi.org/10.21548/40-2-3058 Blancquaert_SAJEV_3058-13296-1-PB.pdf

Zelmari A. Coetzee, Rob R. Walker, Siyang Liao, Celia Barril, Alain J. Deloire, Simon J. Clarke, Stephen D. Tyerman and Suzy Y. Rogiers, 2019. Expression Patterns of Genes Encoding Sugar and Potassium Transport Proteins Are Simultaneously Upregulated or Downregulated When Carbon and Potassium Availability Is Modified in Shiraz (Vitis vinifera L.) Berries, Plant Cell Physiol. 60(10): 2331–2342 (2019) doi:10.1093/pcp/pcz130 Sugar and Potassium Nexus-Coetzee et al., PCP, 2019.pdf

Katja Šuklje, Silvia Carlin, Guillaume Antalick, John W. Blackman, Alain Deloire, Urska Vrhovsek, and Leigh M. Schmidtke, 2019. Regional Discrimination of Australian Shiraz Wine Volatome by Two-Dimensional Gas Chromatography Coupled to Time-of-Flight Mass Spectrometry. DOI:10.1021/acs.jafc.9b03563,  J. Agric. Food Chem. SUKLJE_et_al_JAFC_2019_in_press_acs.jafc.9b03563.pdf

Katja Šuklje, Silvia Carlin, Jan Stanstrup, Guillaume Antalick, John W. Blackman, Campbell Meeks, Alain Deloire, Leigh M. Schmidtke, Urska Vrhovsek, 2019. Unravelling wine volatile evolution during Shiraz grape ripening by untargeted HS-SPME-GC×GC-TOFMS, Food Chemistry 277 (2019) 753–765. Suklje-2018-wine volatile evolution-Shiraz.pdf

Suklje, K., Antalick, G., Meeks, C., Blackman, J. W., Deloire, A. & Schmidtke, L. M., 2017. Grapes to wine: the nexus between berry ripening, composition and wine style, pp. 43-50. International Society for Horticultural Science (ISHS), Leuven, Belgium. L18_Schmidtke_ACTA_HORT_Author_version_2018.pdf

G.C. Rossouw, Smith J.P., Barril C., Deloire A., Holzapfel B.P., 2017. Carbohydrate distribution during berry ripening of potted grapevines : impact of water availability and leaf-to-fruit ratio, Scientia Horticulturae (216), 215-225. Rossouw et al 2017 scientia horticulturae.pdf 

G.C. Rossouw, B.A. Orchard, K. Suklje, J.P. Smith, C. Barril, A. Deloire, B.P. Holzapfel. 2017. Vitis vinifera root and leaf metabolic composition during fruit maturation: implication of defoliation. Physiologia Plantarum. Doi: 10.111/ppl.12604, ISSN 0031-9317.  Rossouw_et_al-2017-Physiologia_Plantarum.pdf

G.C. Rossouw, J.P. Smith, C. Barril, A. Deloire, B.P. Holzapfel, 2017. Implication of the presence of maturing fruit on carbohydrate and nirogen distribution in grapevine under post-veraison water constraints. J. Amer. Soc. Hort. Sci. 142 (2), 71-84. doi: 10.212731/JASHS 03982-16. Rossouw et al 2017 JASHS.pdf 

S.Y. Rogiers, Z.A. Coetzee, R.R. Walker, A. Deloire, S.D. Tyerman, 2017. Potassium in the grape (Vitis vinifera L.) berry: transport and function. 2017. Frontiers in Plant Sciences. 8 (1629), 1-19. doi: 10.3389/fpls2017.01629. Potassium in Grapevine-A review-Rogiers et al, 2017.pdf

Z.A. Coetzee, R.R. Walker, A. Deloire, S.J. Clarke, C. Barril, S.Y. Rogiers, 2017. Spatiotemporal changes in the accumulation of sugar and potassium within individual Sauvignon Blanc (Vitis vinifera L.) berries. Vitis 56, 189-195. Vitis-2017-Coetzee et al., Potassium.pdf

Šuklje, K., Zhang, X., Antalick, G., Clark, A., Deloire, A.; Schmidtke, L. M. Berry shriveling significantly alters Shiraz (Vitis vinifera L.) grape and wine chemical composition. 2016, J. Agric Food Chem. DOI: 10.1021/acs.jafc.5b05158. Berry Shrivelling-2016-K.SUKLJE.pdf

Antalick, G., Šuklje, K., Blackman, J. B., Meeks, M., Deloire, A., Schmidtke, L. M. Influence of grape composition on red wine ester profile: comparison between Cabernet Sauvignon and Shiraz cultivars from Australian warm climate, 2015. J. Agric Food Chem.  63, 4664-4672.

K. Šuklje, G. Antalick, Z. Coetzee, L. Schmidtke, H. Basa Česnik, J. Brandt, W. J. Du Toit, K. LIisjak and A. Deloire, . 2014. Effect of leaf removal and ultraviolet radiation on the composition and sensory perception of Vitis vinifera L. cv. Sauvignon Blanc wine. Australian Journal of Grape and Wine Research, 20, 223-233. Suklje et al_published.UV-SB-2014.pdf

Šuklje Katja, Basa Česnik Helena, Janes Lucija, Kmecl Veronika, Vanzo Andreja, Deloire Alain, Sivilotti Paolo, Lisjak Klemen,  2013. The effect of leaf area to yield ratio on secondary metabolites in grapes and wines of Vitis vinifera L. cv. Sauvignon Blanc. J. Int. Sci. Vigne et Vin, 47, 2, 83-97. 

2004.  INTERACTION «TRAINING SYSTEM X VIGOUR» ON MERLOT. COMPARISON BETWEEN VERTICAL TRELLIS AND MINIMAL PRUNING. FIRST RESULTS.  Interaction système de conduite x vigueur sur merlot entre TM et autres, Deloire et al.pdf

A pleasure to work with such great colleagues