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Image Title: Young wall with plasmodesmata sieve plate elements and companion cells.
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

Young wall with plasmodesmata (top); sieve plate elements (left) and companion cells (right). Early stage of callose accumulation visible at ends of a plasmodesma, near differentiating pore site. (Echium angustifolium and E. sabulicola petioles)

National Science Foundation  Development Supported by the National Science Foundation