Apple stalk-branch junction. Coloured scanning electron micrograph (SEM) of a section through the junction between the stalk of an apple (lower half)

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Apple stalk-branch junction. Coloured scanning electron micrograph (SEM) of a section through the junction between the stalk of an apple (lower half) and where it attaches to the branch (upper half) of a tree. With increasing maturity of the apple, the border area between branch and stem (brown) becomes corked. This cork layer interrupts the water supply of the apple and the result is a predetermined breaking point, which enables the apple to break free and fall to the ground when ripe. Magnification: x13, when printed 10 centimetres wide.

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Size: 5574px × 3136px
Photo credit: © EYE OF SCIENCE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: anatomical, anatomy, angiosperm, angiosperms, apfel, apple, ast, attached, attachment, background, biological, biology, black, botanical, botany, branch, breaking, colored, coloured, cork, corked, domestica, electron, false-colored, false-coloured, flora, frucht, fruit, junction, kork, layer, malus, micrograph, microscope, nature, plant, plants, point, rosaceae, scanning, section, sectioned, sem, sollbruchstelle, stalk, stem, stiel, tissue, transition, tree, verkorken, wildlife