Biologia Plantarum 63: 33-37, 2019 | DOI: 10.32615/bp.2019.004

Effect of NaCl on the photosynthetic pathways of halophytic leaf succulent Sedum uniflorum

C.E. Martin1,2, J.-M. Chiang1, T.-C. Lin2,*
1 Department of Life Science, Tunghai University, Taichung 40704, Taiwan
2 Department of Life Science, National Taiwan Normal University, Taipei 11677, Taiwan

The effect of NaCl on the photosynthetic pathways of the only halophytic subtropical species Sedum uniflorum was examined in the field in northern Taiwan and in the laboratory. Plants growing in the field exhibited CAM-cycling regardless of salt content in their tissues. In contrast, NaCl treatment in the laboratory induced CAM photosynthesis, while control plants exhibited a C3-CAM intermediacy. This high level of photosynthetic pathway variablility matches that of other Sedum species.

Keywords: CAM, CAM-cycling, C3-CAM intermediate, net CO2 exchange, δ13C
Subjects: C3 and CAM photosynthetic pathways

Accepted: November 13, 2018; Prepublished online: November 14, 2018; Published online: January 19, 2019Show citation

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Martin, C.E., Chiang, J.-M., & Lin, T.-C. (2019). Effect of NaCl on the photosynthetic pathways of halophytic leaf succulent Sedum uniflorum. Biologia plantarum, 63, 33-37. doi: 10.32615/bp.2019.004.
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