A comparative anal
A comparative analysis of leaf anatomical and photosynthetic characteristics of Phragmites australis from two different habitations
Liang Chen, Weihua Jiang, Lei Jiang,Ting Chen, Xiaoming Xu
College of Life Sciences and Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, Hubei, China 435002 ch[email protected]
Abstract: To analysis the effect of water perturbation on the leaf anatomical and photosynthetic traits of plant, the reeds (Phragmites australis) from two different habitations were selected. Compared to the terrestrial reed, the aquatic reed had higher stomata density, index, leaf thickness, vascular and xylem diameter. The proline and soluble sugar of the aquatic reed were also 34.7%，63.6%higher than those of the terrestrial reed. Between the two ecotypes, the chlorophyll contents and chlorophyll fluorescence parameters differed considerably. Moreover the analysis of the linear correlation of two ecotypes of reeds showed that leaf stomata density, soluble sugar content and the chlorophyll contents of two ecotypes had significantly linear correlations with relative water content. It can be concluded that there exist remarkable divergences in anatomy and physiology between the natural P australis growing in two different habitats and water is a major factor limiting the productivity of plant.
[Liang Chen, Weihua Jiang, Lei Jiang,Ting Chen, Xiaoming Xu. A comparative analysis of leaf anatomical and photosynthetic characteristics of Phragmites australis from two different habitations. Life Sci J2013;10(1):1022-1029] (ISSN:1097-8135). http://www.lifesciencesite.com. 8
Keywords: water perturbation; two Phragmites australis ecotypes; anatomical trait; photosynthetic trait
