Determination of element composition of three lichens and their distribution in King George Island, Antarctica

Cross-section slices of Usnea antarctica Du Rietz, Usnea aurantiaco-atra (Jacq.) Bory. and Cladonia sp. at upper, middle and basal positions were prepared, respectively. The element composition and relative content were determined by SEM and EDS at the surface, intermediate and inner layers in each...

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Bibliographic Details
Main Authors: Yongliang, Li, Yunlong, Zhao, Zhengwang, Zhang
Format: Article in Journal/Newspaper
Language:English
Published: Polar Research Institute of China - PRIC 2000
Subjects:
King George Island
Bory
Advances in Polar Science
Antarc*
Antarctica
Polar Science
Usnea antarctica
Online Access:http://library.arcticportal.org/2208/
http://library.arcticportal.org/2208/1/A200002007.pdf
Description
Summary:Cross-section slices of Usnea antarctica Du Rietz, Usnea aurantiaco-atra (Jacq.) Bory. and Cladonia sp. at upper, middle and basal positions were prepared, respectively. The element composition and relative content were determined by SEM and EDS at the surface, intermediate and inner layers in each slice, respectively. The result indicated that the composition of element is mostly same in these lichens. The relative content of Al, Si, K and Ca elements is high, and P is close at each position. The result is of benefit to study the structure and physiological characteristics of lichens, and to analyze geological environment in Antarctica.

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