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Image Title: Removal of vessel end wall with middle part consisting of primary wall material.
Image Credit: Katherine Esau
Intended End User: Teacher, Student
License Details: BSA - Terms for Image Use
Copyright held by: Katherine Esau, BSA
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About the Image

Removal of vessel end wall with middle part consisting of primary wall material. Around the end wall margin, secondary wall material protects unthickened primary wall, which becomes hydrolyzed and disappear. This stage is shown below: the rim now surrounds a perforation. (Phaseolus vulgaris stem)


National Science Foundation  Development Supported by the National Science Foundation