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Transverse section through a monocot root

Legend:

1  cortex
3  pericycle
4  phloem
5  xylem
2  endodermis
6  pith

English name: Greenbrier
Scientific name: Smilax sp.
Familia: Smilacaceae
Classis: Monocotyledonas
Phylum: Angiospermae
Regnum: Plantae

The walls of the endodermis cells are extremely thick, preventing water transport through this barrier. Only a few endodermal cells lack these wall thickenings: these are the so-called passage cells. Water transport is only possible through the cytoplasm of these cells

http://www.vcbio.science.ru.nl/en/image-gallery/show/print/PL0199/print/

last modified: 5 Jun 2014