A Fourier Transform-Raman Spectroscopic Study of Lichen Strategies on Granite Monuments
作者:
B. Prieto, H. G. M. Edwards, M. R. D. Seaward,
期刊:
Geomicrobiology Journal
(Taylor Available online 2000)
卷期:
Volume 17,
issue 1
页码: 55-60
ISSN:0149-0451
年代: 2000
DOI:10.1080/014904500270495
出版商: Informa UK Ltd
关键词: Biodeterioration;Ft-raman Spectroscopy;Granite;Lichens;Monuments
数据来源: Taylor
摘要:
The biodeterioration of granite byLecidea fuscoatra(L.) Ach.,Porpidia cinereoatra(Ach.) Hertel & Knoph, andP. macrocarpa(DC.) Hertel & Schwab growing in the same environmental conditions has been studied by using Fourier transform-Raman spectroscopy. Results were significantly different for the three species, withP. cinereoatrabeing the most active biodeteriorative lichen. This lichen was also the only one in which calcium oxalate and gypsum were identified spectroscopically. Physical disturbances to the substratum were evidenced in all lichens studied by the incoporation of material, such as quartz and feldspar, into their thalli, but this phenomenon varied considerably from species to species. The results indicate that lichen species can adopt different strategies and can have different biodeteriorative effects on granite, independently of environmental conditions and substrate.
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