Biologia plantarum 2012, 56:145-148 | DOI: 10.1007/s10535-012-0031-4

Leaf anatomy and C4 photosynthetic enzymes in three reed ecotypes

X. -Y. Zhu1,*, W. -X. Xia1, L. -J. Chen1
1 School of Life Sciences, Xiamen University, Xiamen, P.R. China

Differences in leaf interveinal distances, chloroplasts distribution in bundle sheath cells (BSC) and activities of C4 photosynthetic enzymes in the leaves of three ecotypes of Phragmites communis Trinius, namely swamp reed (SR), heavy salt meadow reed (HSMR) and dune reed (DR), occurring in the desert region of northwest China were investigated. The two terrestrial ecotypes, DR and HSMR, had denser vascular system, more and longer BSC chloroplasts and higher capacity of CO2 concentrating mechanism of NAD-ME subtype as compared with the SR ecotype. The enhanced NADP-ME pathway in the HSMR might contribute to its adaptation to the salinity habitat.

Keywords: chloroplasts; drought; leaf vein frequency; Phragmites communis; salinity
Subjects: chloroplasts; leaf vein frequency; salinity; anatomy - leaf; water stress; C4 photosynthetic enzymes; malic enzyme; phosphoenolpyruvate carboxylase; malate; aspartate; pyruvate; vascular bundles
Species: Phragmites communis

Received: May 17, 2010; Accepted: October 25, 2010; Published: March 1, 2012Show citation

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Zhu, X.-Y., Xia, W.-X., & Chen, L.-J. (2012). Leaf anatomy and C4 photosynthetic enzymes in three reed ecotypes. Biologia plantarum56(1), 145-148. doi: 10.1007/s10535-012-0031-4.
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