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Now showing items 1-9 of 9
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Carotenoid cleavage dioxygenases (CCDs) of grape
(Stellenbosch : Stellenbosch University, 2012-12)ENGLISH ABSTRACT: Plant carotenoid cleavage dioxygenases (CCD) are a family of enzymes that catalyse the oxidative cleavage of carotenoids and/or apocarotenoids. Carotenoids are synthesised in plastids (primarily chloroplasts ... -
The evaluation of the impact of microclimatic factors on grapevine berries in a vineyard setting through molecular profiling
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH SUMMARY: Grape composition is considered to be the result of the grapevine genotype, the environmental factors the grapes are exposed to and the management practices implemented during their development. ... -
Extraction and bioconversion of aroma impact compounds from Sauvignon Blanc grapes to wine matrices during white wine production
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: The phenotypic response of Sauvignon Blanc grapes grown in high light (HL) conditions has been shown to acclimate to stress conditions via photoprotective responses that includes the upregulation of ... -
Functional analysis of a grapevine carotenoid cleavage dioxygenase (VvCCD1)
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: The Vitis vinifera L. carotenoid cleavage dioxygenase 1 gene (VvCCD1) is a member of a structurally conserved gene family encoding enzymes that cleave multiple carotenoid substrates to form apocarotenoids. ... -
Functional analysis of candidate terpenoid biosynthetic genes isolated from grapevine
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Terpenoids are a group of compounds found in various organisms, with diverse functions, and can be broadly grouped into primary or specialised (secondary) metabolites. This compound diversity is achieved ... -
Grapevine terpenoids and their contribution to the flower volatilome
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Terpenoids represent the largest group of plant natural products and show tremendous diversity in chemical structure and bioactivity. This diversity arises from the action of terpene synthases (TPS), ... -
The impact of UV-light on grapevine berry and wine metabolites.
(Stellenbosch : Stellenbosch University, 2018-12)ENGLISH ABSTRACT: Within their natural environments, plants are constantly challenged by a multitude of stress factors and have therefore evolved different adaptive strategies to mitigate potential damage as well as to ... -
Non-destructive assessment of leaf composition as related to growth of the grapevine (Vitis vinifera L. cv. Shiraz)
(Stellenbosch : Stellenbosch University, 2012-03)ENGLISH ABSTRACT: Field spectroscopy was used to study leaf composition and selected factors (including canopy growth manipulation and water status changes) that may impact on it in a Vitis vinifera cv. Shiraz vineyard, ... -
Sequence-function relationships of the Vitis vinifera L. terpene synthase (VviTPS) family towards understanding the grapevine flower volatilome
(Stellenbosch : Stellenbosch University, 2020-04)ENGLISH ABSTRACT: Terpenes are ubiquitous to plants and represent the most diverse class of natural products. More than 50 000 terpenes have been described in nature with the enzymes involved in their ...