You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Mesophyll Intrusion Induced by Far-Uv Damage to Leaves of Zebrina pendula
Vol. 139, No. 1 (Mar., 1978), pp. 53-55
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/2474029
Page Count: 3
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Detached leaves of Zebrina pendula, irradiated on their lower surface with UV light and placed in the dark, became waterlogged and necrotic within 5 days. Incubation in the light prevented much of the damage, and the leaves appeared unchanged except for some loss of anthocyanin in the lower epidermis. Microscopic examination, however, revealed that many epidermal cells were killed and that the space previously occupied by epidermal protoplasts was occupied by intruding mesophyll cells within 3-5 days after the exposure.
Botanical Gazette © 1978 The University of Chicago Press