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izvor podataka: crosbi

How Phytoplankton Membranes Cope With Steep Ionic Strength (Salinity) Gradient? (CROSBI ID 695507)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Gašparović, Blaženka ; Novak, Tihana ; Čanković, Milan ; Ljubešić, Zrinka ; Hrustić, Enis ; Zhu, Zhuoyi ; Zhang, Ruifeng ; Du, Jinzhou How Phytoplankton Membranes Cope With Steep Ionic Strength (Salinity) Gradient? // Ocean Sciences Meeting 2016 : On-line book of abstracts. 2016

Podaci o odgovornosti

Gašparović, Blaženka ; Novak, Tihana ; Čanković, Milan ; Ljubešić, Zrinka ; Hrustić, Enis ; Zhu, Zhuoyi ; Zhang, Ruifeng ; Du, Jinzhou

engleski

How Phytoplankton Membranes Cope With Steep Ionic Strength (Salinity) Gradient?

We report on phytoplankton accommodation on stressful conditions being steep ionic strength, i.e. salinity, changes, the conditions regularly found in the estuaries. We aimed defining how lipid composition of phytoplankton membrane structure is accommodated to prevent spontaneous osmosis. Salinity-dependent lipid profiles for particulate lipid extracts from blooming periods of the two opposing estuaries: eutrophic and polluted Wenchang River Estuary and pristine oligotrophic/mesotrophic Krka River Estuary were characterized by thin layer chromatography (TLC). The composition of phytoplankton pigments which was analyzed by high performance liquid chromatography. Domination of pigment Fucoxanthin in both estuaries indicates diatoms were major blooming group. While total particulate lipid concentration was almost an order of magnitude higher in the Wenchang River estuary (on average 238 µg/L) than in the Krka River Estuary (on average 36 µg/L), the lipid composition was similar. This implies that salinity stress is the main influential factor on phytoplankton lipid composition rather than availability of nutrients. Details on the lipid composition that follow salinity changes will be discussed.

phytoplankton ; lipid ; salinity stress

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Podaci o prilogu

91090

2016.

objavljeno

Podaci o matičnoj publikaciji

Ocean Sciences Meeting 2016 : On-line book of abstracts

Podaci o skupu

Ocean Sciences Meeting 2016

poster

21.02.2016-26.02.2016

New Orleans (LA), Sjedinjene Američke Države

Povezanost rada

Interdisciplinarne prirodne znanosti