Naslov
Motility as an indicator of algal cell stress in modified batch cultures

Autori
Novosel, Nives ; Žutinić, Petar ; Kasum, Damir ; Legović, Tarzan ; Ivošević DeNardis, Nadica

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

Izvornik
11th Symposium for European Freshwater Sciences. Programme and Book of Abstracts / Sertić Perić, Mirela ; Miliša, Marko ; Gračan, Romana ; Ivković, Marija ; Buj, Ivana ; Mičetić Stanković, Vlatka - Zagreb, 2019, 384-384

Skup
11th Symposium for European Freshwater Sciences (SEFS11)

Mjesto i datum
Zagreb, Hrvatska, 30.06.2019. - 05.07.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
motility ; Dunaliella ; Tetraselmis ; Rhodomonas ; Cadmium

Sažetak
Motility is a fundamental property which includes a number of highly attuned cellular functions that enable an organism to move in a coordinated fashion. Many microorganisms use different external chemical and physical factors in order to direct their search toward food or a suitable niche for survival and growth. The aim of this study was to develop procedure for the cell motion analysis in order to determine the cell speed changes in laboratoryinduced stress conditions. Dunaliella tertiolecta and Rhodomonas maculata, two motile biflagellate algal species differing in cell symmetry and position of flagella, were selected as model organisms. Motility of algal cells was examined in dependence of changing concentrations of toxic heavy metal cadmium and different salinities in the growth media. Determination of cell motility, corresponding to length and shape of trajectories, were recorded with the open access bioimage software ICY (The Institut Pasteur, France). Differences in cell speed are related to morphological features of the corresponding algal species. Cell adaptation response to cadmium stress is manifested through decrease in cell speed, as well as changes in motion and pattern of movement. The obtained results give a deeper insight into the viability of algae population and will contribute in understanding of the adaptation response mechanism of cell to stress in aquatic ecosystems.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Biologija, Interdisciplinarne prirodne znanosti

POVEZANOST RADA