The role of fruit exposure in the late season decline of grape berry mesocarp cell vitality

dc.contributor.authorClarke, S.J.
dc.contributor.authorRogiers, S.Y.
dc.date.issued2019
dc.descriptionAvailable online 27 November 2018
dc.description.abstractLoss of cell vitality in the mesocarp of grape (Vitis vinifera L.) berries during late ripening is programmed and under genetic control. Environmental factors such as temperature and vine water status, however, have a strong influence on the onset and extent of cell death. Following preliminary observations made on field experiment fruit, the hypothesis that exposure (increased light interception and wind velocity) at the berry level is important to the progression of cell death was tested. Transpiration, mesocarp cell vitality and total soluble solids concentration were compared in exposed and sheltered berries within single Shiraz vines. At oenological maturity (24 °Brix), exposed berries exhibited the same extent of cell death as sheltered berries, and it was not until four weeks later that cell death was more extensive in the exposed treatment. Therefore, under the conditions of this study, increased exposure over the ripening period was not a strong predictor of the extent of cell vitality at maturity. However, the results are consistent with an increase in the importance of environmental effects (including rain and exposure) on mesocarp cell death over the course of berry development, particularly in overripe fruit.
dc.description.statementofresponsibilitySimon J. Clarke, Suzy Y. Rogiers
dc.identifier.citationPlant Physiology and Biochemistry, 2019; 135:69-76
dc.identifier.doi10.1016/j.plaphy.2018.11.025
dc.identifier.issn0981-9428
dc.identifier.issn1873-2690
dc.identifier.urihttp://hdl.handle.net/2440/131620
dc.language.isoen
dc.publisherElsevier
dc.relation.granthttp://purl.org/au-research/grants/arc/IC130100005
dc.rights© 2018 Elsevier Masson SAS. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.plaphy.2018.11.025
dc.subjectFluorescein diacetate; Growing degree days; Syrah; Senescence
dc.titleThe role of fruit exposure in the late season decline of grape berry mesocarp cell vitality
dc.typeJournal article
pubs.publication-statusPublished

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