@article{article_425013, title={The Effects of Different Salt Concentrations on the Biochemical Contents of Gracilaria gracilis Greville (Rhodophyta)}, journal={Celal Bayar University Journal of Science}, volume={14}, pages={303–307}, year={2018}, DOI={10.18466/cbayarfbe.425013}, url={https://izlik.org/JA98JZ89ES}, author={Özen, Mihriban and Kozak, Ayşegül and Dere, Şükran and Tüney Kızılkaya, İnci}, keywords={Gracilaria gracilis,phycoerythrin,phycocyanin,catalase}, abstract={<div style="text-align:justify;"> <span style="font-family:’Times New Roman’, serif;font-size:10pt;">It has been known that, climate change causes changes in marine water salinity. Since salinity is one of the major factors on osmoregulation and ion concentration of algae, marine algal community will be effected by salinity changes. </span> <i style="font-family:’Times New Roman’, serif;font-size:10pt;">Gracilaria gracilis </i> <span style="font-family:’Times New Roman’, serif;font-size:10pt;"> samples were collected from Izmir Bay on December 2014. After 2 days adjustment period in the laboratory conditions, the algae samples were divided into 4 groups and each group were cultured in different salinity concentrations (10‰, 25‰, 37‰ control group, 48‰) for 7 days. On Day 0, 2, 5 and 7, small pieces of samples collected from each group afterwards total protein, phycocyanin, phycoerythrin and chlorophyll a integrity and catalase activity were analyzed. Phycocyanin, phycoerythrin and chlorophyll a levels and catalase activity showed variations according to exposure time and salinity concentrations. Except for the catalase activity, all the parameters were decreased by the end of the 7th day at different salinities. The highest catalase activity was observed on the last day of the experiment in all groups which shows the salinity stress increasement according to exposure time. </span> <i style="font-family:’Times New Roman’, serif;font-size:10pt;">Gracilaria gracilis </i> <span style="font-family:’Times New Roman’, serif;font-size:10pt;"> was not able to adapt both hiposalinity and hypersalinity conditions. </span> </div>}, number={3}