Abstract
The degree of stomatal sensitivity to CO2 was positively correlated with the content of abscisic acid of leaves of Xanthium strumarium grown in a greenhouse and then transferred for 24 hours or more to a cold (5/10 C, night/day) or a warm growth chamber (20/23 C). This correlation did not exist in plants kept in the greehouse continuously (high abscisic acid, no CO2 sensitivity), nor in plants transferred from the cold to the warm chamber (low abscisic acid, high CO2 sensitivity). The abscisic acid content of leaves was correlated with water content only within narrow limits, if at all. At equal water contents, prechilled leaves contained more abscisic acid than leaves of plants pretreated in the warm chamber. There appear to be at least two compartments for abscisic acid in the leaf.
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Selected References
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- Drake B., Raschke K. Prechilling of Xanthium strumarium L. Reduces Net Photosynthesis and, Independently, Stomatal Conductance, While Sensitizing the Stomata to CO(2). Plant Physiol. 1974 Jun;53(6):808–812. doi: 10.1104/pp.53.6.808. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kriedemann P. E., Loveys B. R., Fuller G. L., Leopold A. C. Abscisic Acid and stomatal regulation. Plant Physiol. 1972 May;49(5):842–847. doi: 10.1104/pp.49.5.842. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mizrahi Y., Blumenfeld A., Richmond A. E. Abscisic Acid and transpiration in leaves in relation to osmotic root stress. Plant Physiol. 1970 Jul;46(1):169–171. doi: 10.1104/pp.46.1.169. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zeevaart J. A. (+)-abscisic Acid content of spinach in relation to photoperiod and water stress. Plant Physiol. 1971 Jul;48(1):86–90. doi: 10.1104/pp.48.1.86. [DOI] [PMC free article] [PubMed] [Google Scholar]