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Analysis of Actinobacteria from mould-colonized water damaged building material

Schäfer, Jenny ; Jäckel, Udo ; Kämpfer, Peter


Originalveröffentlichung: (2010) Systematic and applied microbiology, 2010, 33(5), 260-268; doi:10.1016/j.syapm.2010.04.006
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URN: urn:nbn:de:hebis:26-opus-86214
URL: http://geb.uni-giessen.de/geb/volltexte/2012/8621/

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Freie Schlagwörter (Englisch): actinomycetes , water damaged wall materials , mould colonization , analysis of species
Universität Justus-Liebig-Universität Gießen
Institut: Institut für Angewandte Mikrobiologie
Fachgebiet: Agrarwissenschaften, Ökotrophologie und Umweltmanagement fachübergreifend
DDC-Sachgruppe: Biowissenschaften, Biologie
Dokumentart: Aufsatz
Sprache: Englisch
Erstellungsjahr: 2010
Publikationsdatum: 15.02.2012
Kurzfassung auf Englisch: Mould-colonized water damaged building materials are frequently co-colonized by actinomycetes. Here, we report the results of the analyses of Actinobacteria on different wall materials from water damaged buildings obtained by both cultivation-dependent and cultivation-independent methods. Actinobacteria were detected in all but one of the investigated materials by both methods. The detected concentrations of Actinobacteria ranged between 1.8 x 10(4) and 7.6 x 10(7) CFUg(-1) of investigated material. A total of 265 isolates from 17 materials could be assigned to 31 different genera of the class Actinobacteria on the basis of 16S rRNA gene sequence analyses. On the basis of the cultivation-independent approach, 16S rRNA gene inserts of 800 clones (50%) were assigned to 47 different genera. Representatives of the genera Streptomyces, Amycolatopsis, Nocardiopsis, Saccharopolyspora, Promicromonospora, and Pseudonocardia were found most frequently. The results derived from both methods indicated a high abundance and variety of Actinobacteria in water damaged buildings. Four bioaerosol samples were investigated by the cultivation-based approach in order to compare the communities of Actinobacteria in building material and associated air samples. A comparison of the detected genera of bioaerosol samples with those directly obtained from material samples resulted in a congruent finding of 9 of the overall 35 detected genera (25%), whereas four genera were only detected in bioaerosol samples.
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