Bundle sheath

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Bundle sheaths are tissue structures in plants that cover the vascular bundles in leaves. They consist of parenchymal cells that lie against one another without intercellular spaces , i.e. without gas-filled cavities.

The function of the bundle sheath is to mediate the transport of substances between the mesophyll and vascular bundles. In plants with C 4 photosynthesis, there are chloroplasts in the bundle sheath cells that perform part of this special type of photosynthesis .

Individual evidence

  1. ↑ a b U. Lüttge, M. Kluge, G. Bauer: Botany . 5th edition. Wiley-VCH, Weinheim 2005, ISBN 3-527-31179-3 .