Multimedia Gallery
Cross section of Mexican Blue Palm
A cross section of a Mexican blue palm (Brahea armata) with intense UV-induced blue-green and chlorophyll (red) fluorescence. The cells with intense red fluorescence are mesophyll cells, which specialize in photosynthesis; the cells that are highly blue fluorescent are part of the leaf's vascular tissue, such as xylem and phloem. The xylem is the transport system for water and minerals from the roots to the rest of the plant, and is a non-living part of the plant.
Restrictions for Use of this Image: Arizona State University (ASU) has allowed the National Science Foundation (NSF) to include this image in the NSF Multimedia Gallery. ASU encourages the use of this image, as well as other material from the ASU Ask a Biologist Web site. Distribution of this image is permitted under the following rules:
-material is not used for commercial or for-profit purposes
-credit for the material is clearly displayed, including copyright and author
-modifications are not made to the original material
-Ask a Biologist and individual authors retain the copyright for this image
-the user agrees to record their use of the image (or other material) via the ASU Ask a Biologist permission form; or by contacting C.J. Kazilek.
(Year of image: 1999)
SORRY: THIS IMAGE IS NOT AVAILABLE IN HIGH-RESOLUTION FORMAT
Credit: Image by Gregory Johnson; from Arizona State University's School of Life Sciences Ask a Biologist website.
Special Restrictions: See specific instructions from Arizona State University regarding use of this image under "Restrictions for use of this Image," in the caption (above).
Images and other media in the National Science Foundation Multimedia Gallery are available for use in print and electronic material by NSF employees, members of the media, university staff, teachers and the general public. All media in the gallery are intended for personal, educational and nonprofit/non-commercial use only.
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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