ONLINE IMAGE COLLECTION

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Image Title: Tyloses shown in a tangential longitudinal view of a secondary xylem vessel
AJB Editor: Judy Jernstedt, University of California - Davis
Intended End User: Teacher, Student
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About the Image

Tyloses are shown in a tangential longitudinal view of a secondary xylem vessel just under a wounded surface in a current-year stem of grape (Vitis vinifera L. cv Chardonnay). Tyloses are induced outgrowths from paratracheal parenchyma cells that block xylem vessels as a step in wound healing. The image is a bright field digital micrograph of a section cut with a sliding microtome and stained with safranin and fast green.

National Science Foundation  Development Supported by the National Science Foundation