Naslov
Ponašanje stanica algi pod stresom u laboratorijskim uvjetima: Elektrokemijski pristup
(Behavior of algal cells under stress in laboratory conditions: Electrochemical approach)

Autori
Novosel, Nives ; Ivoševic DeNardis, Nadica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts 5. dan elektrokemije & ISE Satelite Student Regional Symposium on Electrochemistry / Kraljić Roković, Marijana ; Strmečki Kos, Slađana ; Cvitešić Kušan, Ana ; Ljubek, Gabrijela - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2018, 27-27

ISBN
978-953-6894-65-9

Skup
5. Dan elektrokemije & 8th ISE satellite student regional symposium on electrochemisty

Mjesto i datum
Zagreb, Hrvatska, 25.05.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
adhesion ; algal cells ; amperometry ; cadmium ; physiological activity ; stress

Sažetak
Marine microalgae play a key role in global primary production, the main biogeochemical cycles and present the base of the food web in the aquatic environment. Algae cell response is a reliable indicator of changes in ecosystems because of its short life cycle responds quickly to changes in the environment. The aim of the study which is part of the graduate Aim is to link the algal cell behavior (in terms of their adhesion at the model interface [1], and physiological activity) to the stressors (salinity, the presence of heavy metal of cadmium) for better understanding of survival strategy and algal cell adaptation in aquatic systems. The selected algal monoculture system is the Dunaliella tertiolecta that has only a cell membrane, pronounced motility and tolerates a wide range of salinity. Optical microscopy is used to visualize cellular shape, and to determine cell abundance. The electrochemical method of amperometry at the dropping mercury electrode is used to characterize cell suspensions before and after exposure to stress and therefore results will be presented in terms of concentration, level of polydispersity and adhesion behavior of cells at the wide potential range. Acknowledgment: This study is supported by the International Visegrad Fund Grant No 21720055 "Algal cell biophysical properties as markers for environmental stress in aquatic systems" N. Ivošević DeNardis (PI). [1] N. Ivošević DeNardis, J. Pečar Ilić, I. Ružić, G. Pletikapić, Electrochim. Acta, 176 (2015) 743-754.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti

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