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Environmental influences on open stomates of a Crassulacean acid metabolism plant, Agave deserti

Journal Article · · Plant Physiol.; (United States)
DOI:https://doi.org/10.1104/pp.63.1.63· OSTI ID:5578167
The major short term stomatal response of Agave deserti was to temperature; increases in leaf temperature led to decreases in water vapor conductance for stomatal opening during the daytime (C/sub 3/ mode) as well as at night (Crassulacean acid metabolism or CAM mode). Hourly changes in the water vapor concentration drop from leaf to air had no significant stomatal effect in either mode. Stomatal responses to external CO/sub 2/ levels up to 800 microliters per liter were not significant after 15 minutes and only moderate after a few hours, suggesting that CO/sub 2/ effects on open stomates of this succulent were indirect in both CAM and C/sub 3/ modes.
Research Organization:
Univ. of California, Los Angeles
DOE Contract Number:
EY-76-C-03-0012
OSTI ID:
5578167
Journal Information:
Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 63:1; ISSN PLPHA
Country of Publication:
United States
Language:
English