کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6330595 | 1619784 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Factors driving epilithic algal colonization in show caves and new insights into combating biofilm development with UV-C treatments
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
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![عکس صفحه اول مقاله: Factors driving epilithic algal colonization in show caves and new insights into combating biofilm development with UV-C treatments Factors driving epilithic algal colonization in show caves and new insights into combating biofilm development with UV-C treatments](/preview/png/6330595.png)
چکیده انگلیسی
The proliferation of epilithic algae that form biofilms in subterranean environments, such as show caves, is a major problem for conservators. In an effort to reduce the use of chemical cleansers when addressing this problem, we proposed investigating the effects of UV-C on combating algal biofilm expansion in a cave located in northeastern France (Moidons Cave). First, the biofilms and cavity were studied in terms of their algal growth-influencing factors to understand the dynamics of colonization in these very harsh environments. Next, colorimetric measurements were used both to diagnose the initial colonization state and monitor the UV-C-treated biofilms for several months after irradiation. The results indicated that passive dispersal vectors of the viable spores and cells were the primary factors involved in the cave's algae repartition. The illumination time during visits appeared to be responsible for greater colonization in some parts of the cave. We also showed that colorimetric measurements could be used for the detection of both thin and thick biofilms, regardless of the type of colonized surface. Finally, our results showed that UV-C treatment led to bleaching of the treated biofilm due to chlorophyll degradation even one year after UV-C treatment. However, a re-colonization phenomenon was colorimetrically and visually detected 16Â months later, suggesting that the colonization dynamics had not been fully halted.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 484, 15 June 2014, Pages 43-52
Journal: Science of The Total Environment - Volume 484, 15 June 2014, Pages 43-52
نویسندگان
Fabien Borderie, Nicolas Tête, Didier Cailhol, Laurence Alaoui-Sehmer, Faisl Bousta, Dominique Rieffel, Lotfi Aleya, Badr Alaoui-Sossé,