Table 1.
Overview of the developmental stages of Vitis vinifera cv. Müller Thurgau (MTH) and cv. Blauer Spätburgunder (BSB) berries at the specific sampling dates and the respective fruit diameters [25]; Mean(SD).
Fig 1.
Morphology of grape berries (uppercase) and the respective cryo-scanning electron micrographs (8.000x) of the epicuticular wax crystals (lowercase) of V. vinifera cv. Müller Thurgau (left) and cv. Blauer Spätburgunder (right) during development (category 1–7).
Fig 2.
Surface of a berry in full maturity with epicuticular wax crystals recorded with cryo-scanning electron microscope (8.000x).
A, In the cultivar Müller-Thurgau epicuticular wax appears as membranous platelets with distinct threadlike extensions. B, Cultivar Blauer Spätburgunder (Pinot noir) shows platelets with rounded margins and on the upper side with crenated edges.
Fig 3.
Developmental pattern of different substance classes within the total wax (wax crystals plus remaining wax) of V. vinifera cv. Müller Thurgau (left) and cv. Blauer Spätburgunder (right) berries (N = 5, mean ± SD).
Fig 4.
Amount of epicuticular wax crystals (μg cm-2) and compositional changes concerning different substance classes during berry development of V. vinifera cv. Müller Thurgau (left) and cv. Blauer Spätburgunder (right) (N = 5, mean ± SD).
Fig 5.
Amount (μg cm-2) of remaining wax after mechanical removal of the wax crystals and compositional changes concerning different substance classes during berry development of V. vinifera cv. Müller Thurgau (left) and cv. Blauer Spätburgunder (right) (N = 5, mean ± SD).