Functional Stomata of the Atmospheric Epiphyte Tillandsia Usneoides L.

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Issue Date
1984Author
Martin, Craig E.
Peters, Eric A.
Publisher
The University of Chicago Press
Type
Article
Article Version
Scholarly/refereed, publisher version
Published Version
http://www.jstor.org/stable/10.2307/2474260Metadata
Show full item recordAbstract
Although stomatal opening in Tillandsia usneoides is not detectable by light microscopy, the guard cells
swell in the dark and in the light in buffers known to stimulate stomatal opening. Abscisic acid or phenylmercuric
acetate substantially reduced subsequent nocturnal C 0 2 uptake. Potassium ions were more concentrated
in the guard cells in the dark than in the light. The stomata of this CAM epiphyte appear functional: open
at night and closed throughout most of the day.
Description
This is the publisher's version, also available electronically from: http://www.jstor.org/stable/10.2307/2474260.
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Citation
Martin, C.E. and E.A. Peters. 1984. Functional stomata of the atmospheric epiphyte Tillandsia usneoides L. Bot. Gaz. 145: 502-507.
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