DNA metabarcoding reveals microbial community dynamics in a microalgae-based municipal wastewater treatment open photobioreactor

QC 20201113
Controlling the growth of desired algal strains in microalgal-based wastewater treatment systems is challenging, and understanding the dynamics and interactions in the system is vital for proper management. A pilot-scale open photobioreactor located in Northern Sweden, was inoculated with the culture collection strain Scenedesmus dimorphus UTEX 417, which had been grown in Nordic climate for 8 years. The microbial diversity of eukaryotic and prokaryotic communities and their seasonal dynamics were revealed throughout the growth period by high-throughput sequencing of 18S and 16S rRNA genes and correlated with various environmental factors. S. dimorphus was stable in batch culture, but other microalgae appeared during semi-batch mode and co-dominated the system as a consequence of predation by zooplankton. Desmodesmus, Pseudocharaciopsis, Chlorella, Characium and Oocystis were the main microalgal species co-occurring in the system, with Characium and Chlorella acting as main competitors to Scenedesmus. Proteobacteria, Firmicutes, Bacteroidetes and Actinobacteria were the most abundant bacterial phyla, some of which showing significant positive or negative influence on Scenedesmus growth over time. Light, temperature, dissolved oxygen, pH and nutrients concentrations were found to have significant influence on the bacterial and/or zooplanktonic community changes.

Hu, Yue O. O.Karolinska Institutet,KTH,Science for Life Laboratory, SciLifeLab,Genteknologi,Karolinska Inst, Dept Microbiol Tumor & Cell Biol, Stockholm, Sweden.(Swepub:kth)u10tbl6i (författare)
Gentili, FrancescoSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Skogens biomaterial och teknologi,Department of Forest Biomaterials and Technology(Swepub:slu)46816 (författare)
Andersson, Anders F.KTH,Science for Life Laboratory, SciLifeLab,Genteknologi(Swepub:kth)u1hi776x (författare)
Funk, ChristianeUmeå universitet,Kemiska institutionen(Swepub:umu)chefuk04 (författare)
Umeå universitetKemiska institutionen (creator_code:org_t)
Sveriges lantbruksuniversitet

Av författaren/redakt...: Ferro, Lorenza, ...; Hu, Yue O. O.; Gentili, Frances ...; Andersson, Ander ...; Funk, Christiane

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Miljöbioteknik; och Vattenbehandling

Av lärosätet: Kungliga Tekniska Högskolan; Umeå universitet; Sveriges Lantbruksuniversitet; Karolinska Institutet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.