School of Life Sciences | Ask A Biologist

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A look inside a leaf...

September/October 1999 Mystery Image

September/October 1999 Mystery Image
Image by Gregory Johnson

Would you believe that it is a cross section of Cyperus alternifolius (umbrella plant) with intense UV-induced blue-green and chlorophyll (red) fluorescence. The cells with intense red fluorescence are mesophyll cells, while the cells which are highly blue fluorescent are part of the leaf's vascular tissue (e.g. xylem and phloem). More info...

ant, photo by Alex Wild

It's like having your own microscope! Visit our Zoom Gallery to explore and have fun zooming in and moving around each image.

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Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.

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ant, photo by Alex Wild

It's like having your own microscope! Visit our Zoom Gallery to explore and have fun zooming in and moving around each image.

Share to Google Classroom

Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.