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Bibliographic record number: 987015

Journal

Authors: Novak, Tihana; Godrijan, Jelena; Pfannkuchen, Daniela Marić; Djakovac, Tamara; Medić, Nikola; Ivančić, Ingrid; Mlakar, Marina; Gašparović, Blaženka
Title: Global warming and oligotrophication lead to increased lipid production in marine phytoplankton
Source: Science of The Total Environment (0048-9697) 668 (2019); 171-183
Paper type: article
Keywords: Marine lipids ; Temperature ; Nutrients ; Northern Adriatic Sea ; Chaetoceros pseudocurvisetus ; Diatoms
Abstract:
Earth temperature is rising and oligotrophication is becoming apparent even in coastal seas. In this changing environment, phytoplankton use carbon and nutrients to form important biomolecules, including lipids. However, the link between lipid production and changing environment is still unexplored. Therefore, we investigated the phytoplankton lipid production in the diatom Chaetoceros pseudocurvisetus cultures under controlled temperatures ranging from 10 to 30 °C and nutrient regimes mimicking oligotrophic and eutrophic conditions. Results were compared to plankton community's lipid production in the northern Adriatic at two stations considered as oligotrophic and mesotrophic during an annual monthly sampling. In order to gain detailed information on the investigated system, we supplemented lipid data with chlorophyll a concentrations, phytoplankton taxonomy, cell abundances and nutrient concentration along with hydrographic parameters. We found enhanced particulate lipid production at higher temperatures, and substantially higher lipid production in oligotrophic conditions. Enhanced lipid production has two opposing roles in carbon sequestration ; it can act as a retainer or a sinker. Lipid remodeling, including change in ratio of phospholipids and glycolipids, is more affected by the nutrient status, than the temperature increase. Triacylglycerol accumulation was observed under the nitrogen starvation.
Project / theme: HRZZ-IP-11-2013-8607, HRZZ-UIP-2014-09-6563
Original language: ENG
Citation databases: Current Contents Connect (CCC)
MEDLINE
Scopus
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Interdisciplinary natural sciences
Broj citata:
Altmetric:
DOI: 10.1016/j.scitotenv.2019.02.372
URL cjelovitog rada:
Google Scholar: Global warming and oligotrophication lead to increased lipid production in marine phytoplankton
Contrib. to CROSBI by: Tihana Novak (Tihana.Novak@irb.hr), 27. Vel. 2019. u 20:17 sati



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