caa a22 4500 605504237 CHVBK 20210128100615.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00253-014-6134-4 doi (NATIONALLICENCE)springer-10.1007/s00253-014-6134-4 Diversity and dynamics of dominant and rare bacterial taxa in replicate sequencing batch reactors operated under different solids retention time [Elektronische Daten] [Samik Bagchi, Berenice Tellez, Hari Rao, Regina Lamendella, Pascal Saikaly] In this study, 16S rRNA gene pyrosequencing was applied in order to provide a better insight on the diversity and dynamics of total, dominant, and rare bacterial taxa in replicate lab-scale sequencing batch reactors (SBRs) operated at different solids retention time (SRT). Rank-abundance curves showed few dominant operational taxonomic units (OTUs) and a long tail of rare OTUs in all reactors. Results revealed that there was no detectable effect of SRT (2 vs. 10days) on Shannon diversity index and OTU richness of both dominant and rare taxa. Nonmetric multidimensional scaling analysis showed that the total, dominant, and rare bacterial taxa were highly dynamic during the entire period of stable reactor performance. Also, the rare taxa were more dynamic than the dominant taxa despite expected low invasion rates because of the use of sterile synthetic media. Springer-Verlag Berlin Heidelberg, 2014 Activated sludge nationallicence Bacterial diversity nationallicence Bacterial community dynamics nationallicence Rare taxa nationallicence 16S rRNA gene pyrosequencing nationallicence Bagchi Samik Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut Tellez Berenice Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut Rao Hari Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut Lamendella Regina Von Liebig Center for Science, Juniata College, 1700 Moore Street, 16652, Huntingdon, PA, USA aut Saikaly Pascal Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/5(2015-03-01), 2361-2370 0175-7598 99:5<2361 2015 99 253 https://doi.org/10.1007/s00253-014-6134-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-6134-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bagchi Samik Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut NATIONALLICENCE 700 1- Tellez Berenice Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut NATIONALLICENCE 700 1- Rao Hari Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut NATIONALLICENCE 700 1- Lamendella Regina Von Liebig Center for Science, Juniata College, 1700 Moore Street, 16652, Huntingdon, PA, USA aut NATIONALLICENCE 700 1- Saikaly Pascal Water Desalination and Reuse Research Center, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/5(2015-03-01), 2361-2370 0175-7598 99:5<2361 2015 99 253