FT-Raman spectroscopy of three foliicolous lichens from Costa Rican rainforests

被引：15

作者：

de Oliveira, LFC

Edwards, HGM

Feo-Manga, JC

Seaward, MRD ^{[1
]}

Lücking, R

机构：

[1] Univ Bradford, Dept Environm Sci, Bradford BD7 1DP, W Yorkshire, England

[2] Univ Bradford, Dept Chem & Forens Sci, Bradford BD7 1DP, W Yorkshire, England

[3] Field Museum Nat Hist, Dept Bot, Chicago, IL 60605 USA

来源：

LICHENOLOGIST | 2002年 / 34卷

关键词：

calcium oxalate; Calenia triseptata; Costa Rica; Echinoplaca strigulacea; foliicolous lichens; FT-Raman spectroscopy; rainforest; Tricharia camea;

D O I：

10.1006/lich.2002.0396

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The first FT-Raman spectroscopic study of folicolous lichens is reported. Detailed spectra obtained by macroscopic and microscopic means for Calenia triseptata Zahlbr., Echinoplaca strigulacea (Mull. Arg.) R.Sant. and Tricharia carnea (Mull. Arg.) R.Sant. collected from Costa Rican rainforests have been interpreted mainly in terms of their oxalate content. The Raman spectra show a significant presence of calcium oxalate monohydrate (whewellite) despite the lack of calcium ions available in the leaf itself. A reasonable explanation for its presence could be the result of the incorporation of calcium ions from airborne dust and/or dissolved in rain falling on the canopy. (C) 2002 The British Lichen Society. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：259 / 266

页数：8

共 37 条

[1] Weathering of rocks and neogenesis of minerals associated with lichen activity [J].