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Bacterial diversity of polluted surface sediments in northern Adriatic Sea determined by pyrosequencing


Korlević, Marino; Žučko, Jurica; Najdek Dragić, Mirjana; Blažina, Maria; Pustijanac, Emina; Vojvoda Zeljko, Tanja; Gačeša, Ranko; Baranašić, Damir; Starčević, Antonio; Diminić, Janko et al.
Bacterial diversity of polluted surface sediments in northern Adriatic Sea determined by pyrosequencing // Systematic and applied microbiology, 38 (2015), 3; 189-197 doi:10.1016/j.syapm.2015.03.001 (međunarodna recenzija, članak, znanstveni)


Naslov
Bacterial diversity of polluted surface sediments in northern Adriatic Sea determined by pyrosequencing

Autori
Korlević, Marino ; Žučko, Jurica ; Najdek Dragić, Mirjana ; Blažina, Maria ; Pustijanac, Emina ; Vojvoda Zeljko, Tanja ; Gačeša, Ranko ; Baranašić, Damir ; Starčević, Antonio ; Diminić, Janko ; Long, Paul ; Cullum, John ; Hranueli, Daslav ; Orlić, Sandi

Izvornik
Systematic and applied microbiology (0723-2020) 38 (2015), 3; 189-197

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Bacteria; Sea sediments; Petroleum compounds; Alkane degradation; Phylogenetic classification

Sažetak
Samples were collected from sea sediments at seven sites in the northern Adriatic Sea that included six sites next to industrial complexes and one from a tourist site (recreational beach). The samples were assayed for alkanes and polycyclic aromatic hydrocarbons. The composition of the hydrocarbon samples suggested that industrial pollution was present in most cases. A sample from one site was also grown aerobically under crude oil enrichment in order to evaluate the response of indigenous bacterial populations to crude oil exposure. Analysis of 16S rRNA gene sequences showed varying microbial biodiversity depending on the level of pollution – ranging from low (200 detected genera) to high (1000+ genera) biodiversity, with lowest biodiversity observed in polluted samples. This indicated that there was considerable biodiversity in all sediment samples but it was severely restricted after exposure to crude oil selection pressure. Phylogenetic analysis of putative alkB genes showed high evolutionary diversity of the enzymes in the samples and suggested great potential for bioremediation and bioprospecting. The first systematic analysis of bacterial communities from sediments of the northern Adriatic Sea is presented, and it will provide a baseline assessment that may serve as a reference point for ecosystem changes and hydrocarbon degrading potential – a potential that could soon gain importance due to plans for oil exploitation in the area.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

Napomena
09/5 from the Croatian Science Foundation.



POVEZANOST RADA


Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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