Seventy-kilodalton protein density in Porites spp.: possible useful proxy for cold stress in coral reefs
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Peyman Eghtesadi-Araghi & Kazem Darvish Bastami & Fatemeh Nozhat
- چاپ و سال / کشور: 2010
Description
During the last two decades, significant deterioration of tropical coral reef communities has been observed, and based on current theories, environmental stressors are among the main causes of this. The density of 70-kDa heat shock proteins (Hsps) may present as a potential tool for the determination of cold stress on Porites spp. Therefore, density of Hsp70 proteins, concentration of total protein and seawater temperature was measured on a seasonal basis. Sampling was conducted, from the dominant genus of Porites spp. at four separate time points over 1 year (2003–2004) and at a depth of 3 m. Our results showed no significant correlations between total protein and seawater temperature. Our results also indicated that Porites spp. from the Persian Gulf is sensitive to low range of temperature (15–27°C). Maximum Hsp70 density and minimum average number of colonies in Porites spp. were obtained in winter. Also, a significant negative correlation was observed between Hsp70 density and water temperatures (p>0.05). Therefore, density of Hsp70 may be used as indicator of cold stress in Porites spp.
Comp Clin Pathol DOI 10.1007/s00580-010-1159-2 Received: 3 August 2010 / Accepted: 7 December 2010
