Cell death in grape berries: varietal differences linked to xylem pressure and berry weight loss

Functional Plant Biology : FPB
Joanne Tilbrook, Stephen D Tyerman

Abstract

Some varieties of Vitis vinifera L. can undergo berry weight loss during later stages of ripening. This defines a third phase of development in addition to berry formation and berry expansion. Berry weight loss is due to net water loss, but the component water flows through different pathways have remained obscure. Because of the very negative osmotic potential of the cell sap, the maintenance of semipermeable membranes in the berry is required for the berry to counter xylem and apoplast tensions that may be transferred from the vine. The transfer of tension is determined by the hydraulic connection through the xylem from the berry to the vine, which changes during development. Here we assess the membrane integrity of three varieties of V. vinifera berries (cvv. Shiraz, Chardonnay and Thompson seedless) throughout development using the vitality stains, fluorescein diacetate and propidium iodide, on fresh longitudinal sections of whole berries. We also measured the xylem pressure using a pressure probe connected to the pedicel of detached berries. The wine grapes, Chardonnay and Shiraz, maintained fully vital cells after veraison and during berry expansion, but began to show cell death in the mesocarp and endocarp at or near the...Continue Reading

References

Jan 1, 1985·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·K H Jones, J A Senft
Mar 26, 2003·Journal of Experimental Botany·Howard ThomasAnthony D Stead
Jun 1, 1997·Annual Review of Plant Physiology and Plant Molecular Biology·J. W. Patrick
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Mar 1, 2006·Functional Plant Biology : FPB·David A Brummell

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Citations

Jul 27, 2010·Protoplasma·Maclin DayodMatthew Gilliham
Oct 13, 2017·Frontiers in Plant Science·Suzy Y RogiersStephen D Tyerman
Nov 13, 2010·Journal of Experimental Botany·Geoffrey E HallMarkus Keller
Apr 4, 2019·Functional Plant Biology : FPB·Shifeng CaoStephen D Tyerman
Dec 14, 2011·Journal of Experimental Botany·Michael J ClearwaterT Grant Thorp
Jan 14, 2016·Journal of Agricultural and Food Chemistry·Katja SukljeLeigh M Schmidtke
Jul 3, 2018·Journal of Agricultural and Food Chemistry·Hsiao-Chi ChouJohn W Blackman
Oct 26, 2021·Physical Chemistry Chemical Physics : PCCP·Nuno BasílioFernando Pina

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Methods Mentioned

BETA
flow cytometry

Software Mentioned

Global Laboratory Image / 2
Image Pro Plus

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