FN Archimer Export Format
PT J
TI Manganese Benefits Heat-Stressed Corals at the Cellular Level
BT 
AF Montalbetti, Enrico
   Biscéré, Tom
   Ferrier-Pagès, Christine
   Houlbrèque, Fanny
   Orlandi, Ivan
   Forcella, Matilde
   Galli, Paolo
   Vai, Marina
   Seveso, Davide
AS 1:1,2;2:3;3:4;4:3;5:5;6:5;7:1,2;8:5;9:1,2;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Department of Environmental and Earth Sciences (DISAT), University of Milano – Bicocca, Milan, Italy
   Marine Research and High Education Center (MaRHE Center), Magoodhoo, Maldives
   ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa, France
   Centre Scientifique de Monaco (CSM), Equipe Ecophysiologie Corallienne, Monaco, Monaco
   Department of Biotechnologies and Biosciences, University of Milano – Bicocca, Milan, Italy
C2 UNIV MILAN, ITALY
   MARHE CENTER, MALDIVES
   IRD, FRANCE
   CTR SCI MONACO, MONACO
   UNIV MILAN, ITALY
UM ENTROPIE
IN WOS Cotutelle UMR
   DOAJ
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 5.247
TC 11
UR https://archimer.ifremer.fr/doc/00705/81678/86191.pdf
   https://archimer.ifremer.fr/doc/00705/81678/86192.docx
LA English
DT Article
DE ;metal enrichment;manganese;iron;thermal stress;Stylophora pistillata;coral bleaching;bleaching mitigation
AB The intensity and frequency of coral bleaching events have increased worldwide especially due to thermal stress and seawater pollution. Although it has been observed that metal concentration in seawater can affect the coral’s ability to adopt cellular defensive mechanisms to counteract bleaching, more investigations are needed to better understand the role of metals in coral physiology. In this study, we analyzed the individual and combined effects of prolonged heat stress and manganese (Mn) and iron (Fe) enrichments at the cellular level on the coral Stylophora pistillata. Thermal stress caused an up-regulation in the expression of the host Heat shock proteins (Hsps) 60 and 70, which showed a parallel pattern of modulation in all treatments, as well as an increase of lipid peroxidation (LPO) in the holobiont. Fe enrichment did not induce any change in Hsp expression or in the oxidative status of the corals both at the ambient temperature of 26°C or at increased temperature, suggesting that Fe didn’t seem to play a role in mitigating the cellular damages and the coral bleaching. Mn or MnFe enrichment at 26°C seemed to increase the oxidative stress in zooxanthellae, since high LPO and glutathione reductase (GR) levels were recorded, but it did not cause any effect on polyp Hsp expression, probably due to the antioxidant action of GR. With the temperature increase, Mn enrichments prevented any increase in Hsp levels and caused a significant decrease of LPO and GR activity, strengthening a previous hypothesis suggesting that Mn could mitigate the negative cellular effects produced by the thermal stress. 
PY 2021
PD JUL
SO Frontiers In Marine Science
SN 2296-7745
PU Frontiers Media SA
VL 8
UT 000669507900001
DI 10.3389/fmars.2021.681119
ID 81678
ER

EF