Air- and dustborne fungi in repositories of the National Archive of the Republic of Cuba
This study has as objectives to determine the concentration and diversity of the air- and dustborne mycobiota in seven National Archive of the Republic of Cuba repositories, and to assess the potential risk of biodeterioration that isolated taxa may have. In the indoor and outdoor environmental micr...
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| Format: | Article |
| Language: | English |
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Shared Science Publishers OG
2022-05-01
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| Series: | Microbial Cell |
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| Online Access: | http://microbialcell.com/researcharticles/2022a-borrego-microbial-cell/ |
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| author | Sofia Borrego Isbel Vivar Alian Molina |
| author_facet | Sofia Borrego Isbel Vivar Alian Molina |
| author_sort | Sofia Borrego |
| collection | DOAJ |
| description | This study has as objectives to determine the concentration and diversity of the air- and dustborne mycobiota in seven National Archive of the Republic of Cuba repositories, and to assess the potential risk of biodeterioration that isolated taxa may have. In the indoor and outdoor environmental microbiological samplings a SAS biocollector was used and the indoor/outdoor (I/O) ratio was determined for each repository. The settled dust was collected during six months. Sørensen's coefficient of similarity (QS) was calculated to compare the isolated taxa among the three studied niches (indoor air, dust, outdoor air). The biodegradation potential of the isolated taxa was determined by semi-quantitative tests. The concentrations in the air of repositories with natural cross-ventilation ranged from 225.2-750.3 CFU m-3, while in the Map library with air-conditioning the concentration was significantly lower. The I/O ratios ranged from 0.1-1.7 revealing different environmental qualities. The maximum settled dust load was 22.8 mg/m2/day with a top fungal concentration of 6000 CFU g-1. 14 and eleven genera were detected in the air and dust respectively with predominance of the genera Aspergillus, Cladosporium and Penicillium. A QS of 0.8 was obtained between the indoor and the outdoor environments with eleven taxa similar evidencing the incidence of outdoors on the indoor mycobiota. The isolated taxa showed several biodeteriogenic attributes highlighting twelve and 14 taxa from indoor air and dust respectively with positive results for the five tests performed. This demonstrates the potential risk that fungal environmental represent for the preserved documentary heritage. |
| format | Article |
| id | doaj-art-b35caa25e76a418288e42027207cd3f1 |
| institution | OA Journals |
| issn | 2311-2638 |
| language | English |
| publishDate | 2022-05-01 |
| publisher | Shared Science Publishers OG |
| record_format | Article |
| series | Microbial Cell |
| spelling | doaj-art-b35caa25e76a418288e42027207cd3f12025-08-20T02:04:33ZengShared Science Publishers OGMicrobial Cell2311-26382022-05-019510312210.15698/mic2022.05.776Air- and dustborne fungi in repositories of the National Archive of the Republic of CubaSofia Borrego0Isbel Vivar1Alian Molina2Conservation Preventive Laboratory, National Archive of the Republic of Cuba, Havana, Cuba.Conservation Preventive Laboratory, National Archive of the Republic of Cuba, Havana, Cuba.Conservation Preventive Laboratory, National Archive of the Republic of Cuba, Havana, Cuba.This study has as objectives to determine the concentration and diversity of the air- and dustborne mycobiota in seven National Archive of the Republic of Cuba repositories, and to assess the potential risk of biodeterioration that isolated taxa may have. In the indoor and outdoor environmental microbiological samplings a SAS biocollector was used and the indoor/outdoor (I/O) ratio was determined for each repository. The settled dust was collected during six months. Sørensen's coefficient of similarity (QS) was calculated to compare the isolated taxa among the three studied niches (indoor air, dust, outdoor air). The biodegradation potential of the isolated taxa was determined by semi-quantitative tests. The concentrations in the air of repositories with natural cross-ventilation ranged from 225.2-750.3 CFU m-3, while in the Map library with air-conditioning the concentration was significantly lower. The I/O ratios ranged from 0.1-1.7 revealing different environmental qualities. The maximum settled dust load was 22.8 mg/m2/day with a top fungal concentration of 6000 CFU g-1. 14 and eleven genera were detected in the air and dust respectively with predominance of the genera Aspergillus, Cladosporium and Penicillium. A QS of 0.8 was obtained between the indoor and the outdoor environments with eleven taxa similar evidencing the incidence of outdoors on the indoor mycobiota. The isolated taxa showed several biodeteriogenic attributes highlighting twelve and 14 taxa from indoor air and dust respectively with positive results for the five tests performed. This demonstrates the potential risk that fungal environmental represent for the preserved documentary heritage.http://microbialcell.com/researcharticles/2022a-borrego-microbial-cell/airborne fungidustborne fungiindoor environmentenvironmental qualityrepositoriesarchivebiodeterioration |
| spellingShingle | Sofia Borrego Isbel Vivar Alian Molina Air- and dustborne fungi in repositories of the National Archive of the Republic of Cuba Microbial Cell airborne fungi dustborne fungi indoor environment environmental quality repositories archive biodeterioration |
| title | Air- and dustborne fungi in repositories of the National Archive of the Republic of Cuba |
| title_full | Air- and dustborne fungi in repositories of the National Archive of the Republic of Cuba |
| title_fullStr | Air- and dustborne fungi in repositories of the National Archive of the Republic of Cuba |
| title_full_unstemmed | Air- and dustborne fungi in repositories of the National Archive of the Republic of Cuba |
| title_short | Air- and dustborne fungi in repositories of the National Archive of the Republic of Cuba |
| title_sort | air and dustborne fungi in repositories of the national archive of the republic of cuba |
| topic | airborne fungi dustborne fungi indoor environment environmental quality repositories archive biodeterioration |
| url | http://microbialcell.com/researcharticles/2022a-borrego-microbial-cell/ |
| work_keys_str_mv | AT sofiaborrego airanddustbornefungiinrepositoriesofthenationalarchiveoftherepublicofcuba AT isbelvivar airanddustbornefungiinrepositoriesofthenationalarchiveoftherepublicofcuba AT alianmolina airanddustbornefungiinrepositoriesofthenationalarchiveoftherepublicofcuba |