Enumeration of Sulfur-Oxidizing Microorganisms on Deteriorating Stone of the Angkor Monuments, Cambodia
Enumeration of Sulfur-Oxidizing Microorganisms on Deteriorating Stone of the Angkor Monuments, Cambodia
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DOI：
10.1264/jsme2.me08521
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发表时间：
2008-01-01
影响因子：
2.2
通讯作者：
Katayama, Yoko
中科院分区：
文献类型：
--
作者：
Li, Xianshu;Arai, Hideo;Katayama, Yoko
列举了砂岩上硫氧化微生物密度的年度变化，以了解对柬埔寨石材或吴哥古迹变质的影响。1998年至2007年期间，从吴哥窟、巴戎寺和Phnom Krom寺庙共12个站点获得了样本。在补充元素硫作为唯一能源的矿物盐培养基中计数的硫氧化微生物的密度为10（1）10（5）MPN（g样品）（-1）。自2002年以来，在吴哥窟采集的样品中的硫氧化微生物的密度有下降的趋势;另一方面，在巴戎和金边的样品中记录了相对恒定的值，这些结果表明，石头上的硫氧化微生物通过分泌硫酸在建筑砌块的腐烂中发挥了重要作用。
Annual change in the density of sulfur-oxidizing microorganisms on sandstone was enumerated to know the effects on the deterioration of stone materials or the Angkor monuments in Cambodia. Samples were obtained from total 12 stations at the Angkor Wat, Bayon, and Phnom Krom temples between 1998 and 2007. Sulfur-oxidizing microorganisms enumerated in a mineral salts medium supplemented with elemental sulfur as the sole energy source had a density of 10(1) 10(5) MPN (g sample)(-1). The sulfur-oxidizing microorganisms of the samples collected at Angkor Wat have tended to decrease in density since 2002; on the other hand, relatively constant values have been recorded in the samples of Bayon and Phnom Krom, These results suggest that the sulfur-oxidizing microorganisms on the stone play an important role in the decay of the building blocks by excreting sulfuric acid.