Vascular transport into the berry and berry cell vitality: impact on fruit size and composition
Fruits, roots and leaves are interconnected by a dynamic vascular system allowing mass transport of essential materials and a means for whole plant communication and integration. Long distance transport via the grapevine’s xylem/phloem network ultimately defines fruit size and composition, impacting yield and wine style.
As the reproductive organ responsible for spreading of seeds, berry development includes the final phase of berry senescence. The change in cell vitality within the berry mesocarp may reflect the progress and the status of berry ripening, and may impact on the connection between the berry and other parts of the grapevine.
The Vascular Transport sub-project will define the mechanisms driving xylem/phloem flow and show how their close connection dictates water, carbohydrate, ion and signal flow to the berry. Metabolomics, transcriptomics and imaging will define the impacts of limitations in vascular transport processes in relation to berry growth, ripening and senescence.
The Cell Vitality sub-project will explore the link between berry cell vitality and potassium, since the potassium ion accumulates into the berry during ripening. The related metabolites and the potential contributors to the change of berry cell vitality will be investigated.
Outputs will help growers improve the quality of grapes and the resulting wines, thereby boosting profitability.
Key outputs from this project
Z Xiao, S Tyerman, T Stait-Gardner, W Price, V Pagay, L Schmidtke, S Rogiers (2022) Characterisation of internal oxygen concentration of strawberry and blueberry. Functional Plant Biology 50(3), 256-265, DOI 10.1071/FP21259
Z Xiao, S Chin, RG White, AM Gourieroux, V Pagay, SD Tyerman, LM Schmidtke, SY Rogiers (2021) Vascular connections into the grape berry: the link of structural investment to seededness. Frontiers in Plant Science, 12, 662433, DOI 10.3389/fpls.2021.662433
Z Xiao, T Stait‐Gardner, SA Willis, WS Price, FJ Moroni, V Pagay, SD Tyerman, LM Schmidtke, SY Rogiers (2021) 3D visualisation of voids in grapevine flowers and berries using X‐ray micro computed tomography. Australian Journal of Grape & Wine Research, 27 (2), 141-148, DOI 10.1111/ajgw.12480
Z Xiao, KA DeGaris, T Baby, SJ McLoughlin, BP Holzapfel, RR Walker, LM Schmidtke, SY Rogiers (2020) Using rootstocks to lower berry potassium concentrations in Cabernet Sauvignon grapevines. VITIS Journal, 59(3), 117-126, DOI 10.5073/vitis.2020.59.117-126
Industry Reports & Articles
Z Xiao, KA DeGaris, T Baby, SJ McLoughlin, BP Holzapfel, RR Walker, LM Schmidtke, SY Rogiers (2020) How rootstock influences grape potassium, in NSW DPI Grapevine management guide 2020 –21, p 53. https://www.dpi.nsw.gov.au/data/assets/pdf_file/0006/1245057/Grapevine-management-guide-2020.pdf
Less K = less acid = less money, Wine Australia RD&E News, 10 Jan 2020. https://www.wineaustralia.com/news/articles/less-k-less-acid-less-money
By Isara Vongluanngam Every two years, wine researchers from around the world come together to exchange their latest findings and knowledge at OenoMacrowine conference. This renowned international congress focuses on macromolecules and secondary Metabolites of vine...
By Andres Zhou Tsang I am sure many of the ARC Training Centre Members have very fond memories of the 13th International Terroir Congress, taking place in Adelaide back in 2020, which connected grape and wine scientists and industry leaders from all over...
Republished with permission from The University of Adelaide Newsroom Researchers from the University of Adelaide have crunched the data on the best methods to delay grapes ripening on the vine, leading to better quality wine. “Our research focused on three...