Photosynthetica 2001, 39(2):191-195 | DOI: 10.1023/A:1013718806674
The Effect of Leaf Age on Gas Exchange and Malate Accumulation in C3-CAM Plant Marrubium Frivaldszkyanum (Lamiaceae)
- 1 Faculty of Biology, Department of Plant Physiology, Department of Botany, University of Sofia, Sofia, Bulgaria
For the first time the expression of C3 and CAM in the leaves of different age of Marrubium frivaldszkyanum Boiss, is reported. With increasing leaf age a typical C3 photosynthesis pattern and high transpiration rate were found. In older leaves a shift to CAM occurred and the 24-h transpiration water loss decreased. A correlation was established between leaf area and accumulation of malate. Water loss at early stages of leaf expansion may be connected with the shift to CAM and the water economy of the whole plant.
Additional key words: C3-CAM shift; Crassulacean Acid Metabolism; leaf expansion; net photosynthetic rate; transpiration rate; water use efficiency
Published: June 1, 2001 Show citation
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Markovska, Y.K., & Dimitrov, D.S. (2001). The Effect of Leaf Age on Gas Exchange and Malate Accumulation in C3-CAM Plant Marrubium Frivaldszkyanum (Lamiaceae). Photosynthetica, 39(2), 191-195. doi: 10.1023/A:1013718806674
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