Pregled bibliografske jedinice broj: 1212260
Distribution of methanotrophs along the oxycline in two lake systems
Distribution of methanotrophs along the oxycline in two lake systems // 18th International Symposium on Microbial Ecology (ISME18)
Lausanne, Švicarska, 2022. str. 1-1 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 1212260 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Distribution of methanotrophs along the oxycline in
two lake systems
Autori
Stanic, Ivana ; Selak, Lorena ; Kajan, Katarina ; Čačković, Andrea ; Pjevac, Petra ; Orlić, Sandi
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Skup
18th International Symposium on Microbial Ecology (ISME18)
Mjesto i datum
Lausanne, Švicarska, 14.08.2022. - 19.08.2022
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
methane oxidation ; anoxia ; amplicon sequencing ; climate change
Sažetak
Freshwater lakes are dynamic environments that emit significant amount of greenhouse gasses to the atmosphere, in particular methane – a major regulator of global climate. Methanotrophs can mitigate that emission by aerobic and anaerobic oxidation of methane from anoxic layers of the lake that can contain high methane concentrations. In order to understand the microbial significance in methane cycling we investigated two lake systems in Croatia with different climate, trophic status and lake type – Plitvice Lakes and Baćina Lakes. Water samples from different depths were collected from May to November 2021 and environmental parameters were measured in situ using a multiparameter sonde (EXO2, YSI, USA). Microbial community was taxonomically determined using 16S rRNA gene pair-end sequencing method and statistical analysis was performed using R software (R Core Team, 2021). Dominant phyla in both lake systems were Actinobacteriota, Bacteroidota, Cyanobacteria, Proteobacteria and Verrucomicrobiota. In some of the samples, we determined the presence of the aerobic methanotrophs, above and below the oxycline, with the most abundant genera being Crenothrix, Methylomonas, Methylocystis and order Methylacidiphilales. Their community structure is lake-specific and differs based on their lifestyle (free-living and particle-associated). Also, we determined seasonal changes in microbial communities in all lakes. Our results show that aerobic methanotrophs have the potential for methane oxidation even in oxygen-deficient environments.
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Interdisciplinarne prirodne znanosti, Interdisciplinarne biotehničke znanosti
POVEZANOST RADA
Projekti:
HRZZ-IP-2020-02-9021 - Mikrobna ekologija jezerskih ekosutava - novi pristup (MALENA) (Orlić, Sandi, HRZZ - 2020-02) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
Profili:
Sandi Orlić
(autor)
Andrea Čačković
(autor)
Katarina Kajan
(autor)
Lorena Selak
(autor)
Ivana Stanić
(autor)