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    Investigating the heat shock protein response involved in coral bleaching across scleractinian species in the central Red Sea

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    Type
    Article
    Authors
    Seveso, Davide
    Arrigoni, Roberto
    Montano, Simone
    Maggioni, Davide
    Orlandi, Ivan
    Berumen, Michael L. cc
    Galli, Paolo
    Vai, Marina
    KAUST Department
    Red Sea Research Center (RSRC)
    Biological and Environmental Sciences and Engineering (BESE) Division
    Marine Science Program
    Date
    2019-11-27
    Online Publication Date
    2019-11-27
    Print Publication Date
    2020-02
    Embargo End Date
    2020-11-27
    Permanent link to this record
    http://hdl.handle.net/10754/660565
    
    Metadata
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    Abstract
    Coral bleaching represents the most serious threat to contemporary coral reefs. In response, focus is being laid on understanding the cellular processes involved in the response of corals to the environmental stresses and the molecular mechanisms that determine the bleaching patterns. In the present study, a component of the cellular stress response such as the expression of the heat shock proteins (Hsps) was analyzed following the coral bleaching event which occurred in the central Red Sea (Saudi Arabia) in 2015. During this event, corals of different species, growth forms and sites showed variable bleaching susceptibility. In particular, we investigated the expression of Hsp70, Hsp60 and Hsp32 in both healthy and bleached colonies belonging to four different coral species (Goniopora lobata, Porites lobata, Seriatopora hystrix and Stylophora pistillata), in order to explore the intra- and inter-specific modulation of these biomarkers as well as the existence of spatial patterns of Hsp expression. In healthy colonies, the level of all the biomarkers was significantly different among the different species, although within each species it remained similar regardless of the distance from the shore. All the coral species showed a significant modulation of the Hsp expression in response to bleaching, whose typology and amplitude were species-specific. In all the species, Hsp70 and Hsp60 showed a coordinated dual expression, which, in response to bleaching resulted in an up-regulation in G. lobata and P. lobata and in a down-regulation in S. hystrix and S. pistillata. Hsp32 was up-regulated in all four species following bleaching, indicative of elevated oxidative stress. Overall, the protein expression profiles of each species contribute to assess the role of Hsps in regulating the susceptibility to thermal stresses of the various coral taxa of the Red Sea.
    Citation
    Seveso, D., Arrigoni, R., Montano, S., Maggioni, D., Orlandi, I., Berumen, M. L., … Vai, M. (2019). Investigating the heat shock protein response involved in coral bleaching across scleractinian species in the central Red Sea. Coral Reefs. doi:10.1007/s00338-019-01878-6
    Sponsors
    The authors wish to thank Tullia Terraneo, Malek Amr Gusti and all the staff of the KAUST Reef Ecology Lab for logistic support and technical assistance during field activities in Saudi Arabia. The authors are also grateful to Francesca Pedretti and Ambra Nucci for laboratory assistance. This research was undertaken in accordance with the policies and procedures of the King Abdullah University of Science and Technology (KAUST). Permission to undertake the research has been obtained from the applicable governmental agencies in the investigated areas. The views expressed are purely those of the writers and may not in any circumstance be regarded as stating an official position of the European Commission.
    Publisher
    Springer Nature
    Journal
    Coral Reefs
    DOI
    10.1007/s00338-019-01878-6
    Additional Links
    http://link.springer.com/10.1007/s00338-019-01878-6
    ae974a485f413a2113503eed53cd6c53
    10.1007/s00338-019-01878-6
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program

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