@article{oai:tobunken.repo.nii.ac.jp:00003795,
 author = {木川, りか and 佐野, 千絵 and 喜友名, 朝彦 and 立里, 臨 and 杉山, 純多 and 高鳥, 浩介 and 久米田, 裕子 and 森井, 順之 and 早川, 典子 and 川野邊, 渉 and Rika, KIGAWA and Chie, SANO and Tomohiko, KIYUNA and Nozomi, TAZATO and \nJunta, SUGIYAMA and Kosuke, TAKATORI and Yuko, KUMEDA and \nMasayuki, MORII and Noriko, HAYAKAWA and Wataru, KAWANOBE},
 issue = {49},
 journal = {保存科学, Science for conservation},
 month = {Mar},
 note = {In January 2004, excavation of Kitora Tumulus took place and the relocation of the paintings started. However, after people began to go into the tumulus, we started to see fungal growth. Para-formaldehyde fumigation and ethanol were used to control and remove fungal colonies. In early 2005, viscous gel appeared on the walls. In the fall of 2005, small holes with black substances inside became obvious on the plaster walls. Such holes might have been caused by the activity of microbes, especially by an acetic acid bacterium, Gluconacetobacter sp.
 Chemicals to treat microbes in Kitora Tumulus had been selected from consideration of their efficacy on microbes, possible adverse effects on paintings and toxicity to human. Mainly, ethanol, isopropanol, formalin and isothiazolones (Kathon CG) have been used, depending on the conditions of the plaster or the stones and purposes. Some chemicals might be carbon sources to encourage growth of some microbes or secretion of acids by them. Special caution to such side effects is necessary.
 In 2008, almost all of the paintings on the side walls and the star charts on the ceiling were relocated, except for those which might have been hidden by a thin layer of mud on the walls. Therefore, other controlling measures such as UV irradiation can be applied to control microoraganisms on the plaster. The effect of Ultraviolet ray (UV) (254nm) irradiation was tested with major isolates of fungi, yeasts and bacteria. It was shown that most of the microbes were killed in 30 minutes of irradiation. From March 2009, intermittent UV irradiation was started in the stone chamber of Kitora Tumulus, in the interval periods of relocation works of the plaster walls without paintings. Growth of most of the fungal mycelia was suppressed effectively. But a
black basidiomycetous fungus Burgoa sp. was sometimes observed in the stone chamber. Burgoa sp. was shown to be very resistant to UV irradiation. Therefore, occasional physical removal of such species is necessary together with UV irradiation.},
 pages = {253--264},
 title = {〔報告〕キトラ古墳の微生物調査結果と微生物対策について（2009）},
 year = {2010}
}