Diaphragm

Partition or wooden bridge in hollow stems of plants, located at the position of the Nodien (nodes = thickened areas). The nodes divide the einjähriges Holz of the Rebstock into sections, the places between the nodes are called internodes. This partition regulates the flow of certain substances (liquids), allowing it to pass in only one direction. The semipermeable partitions in Osmose are also referred to as Diaphragma. See also under Auge (bud), Morphologie, Triebe and Weinrebe.

Auge (Knospe) - Zeichnung und Foto

1 = Bud scales, 2 = Bud wool, 3 = upper Beiauge, 4 = main bud, 5 = leaf scar, 6 = lower Beiauge, 7 = bark, 8 = phloem, 9 = Kambium, 10 = Holz, 11 = pith, 12 = Diaphragma (wood bridge)

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