LSB Data Paper

The grapevine is one of the most widely grown perennial crops worldwide. As for other species displaying clusters of small fruits, the development of single berries within a bunch is asynchronous and heterogeneous. Because of this, the study of water and solute accumulation kinetics and balance at the organ level cannot be directly extrapolated from samples of populations of fruits. In order to have an original and reliable dataset on the accumulation kinetics of the main solutes (primary and secondary metabolites and cations) and water, we analyzed fruit populations sorted according to their density and also individual berries from the onset of sugar importation to the end of phloem unloading. The studies were performed on a panel of varieties representing different metabolic contexts for the relationship between the import of organic and inorganic solutes and fruit growth, including genotypes able to import water at low fruit osmotic potential. These original data sets are suitable to revisit some aspects of the accumulation of main solutes and water in grapevine fruit and/or to perform comparative studies with other fleshy fruits.

葡萄是全球种植最广泛的多年生作物之一。与其他结聚生小果簇的物种类似，葡萄果穗内单颗浆果的发育呈现异步性与异质性。正因如此，无法直接通过果实群体样本外推得到器官层面水分与溶质积累动力学及平衡的相关研究结论。为获取涵盖主要溶质（初生代谢物、次生代谢物与阳离子）与水分积累动力学的原创可靠数据集，本研究按密度对果实群体进行分选，并分析了从糖分导入(sugar importation)起始阶段至韧皮部卸载(phloem unloading)结束阶段的单颗浆果样本。本研究以一组供试品种为材料，这些品种的有机与无机溶质导入与果实生长的关系存在各异的代谢背景，其中包含可在果实渗透势(osmotic potential)较低时完成水分导入的基因型。本原创数据集可用于重新探讨葡萄果实主要溶质与水分积累的相关问题，或用于与其他肉质果实开展比较研究。