Variability in the primary site of photosynthetic damage in symbiodinium sp. (dinophyceae) exposed to thermal stress

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Show simple item record Buxton, L Takahashi, S Hill, R Ralph, PJ 2012-10-12T03:33:31Z 2012-02
dc.identifier.citation Journal of Phycology, 2012, 48 (1), pp. 117 - 126
dc.identifier.issn 0022-3646
dc.identifier.other C1 en_US
dc.description.abstract Exposure to elevated temperature is known to cause photosynthetic inhibition in the coral symbiont Symbiodinium sp. Through the use of the artificial electron acceptor, methyl viologen, this study identified how reduced photosynthetic capacity occurs as a result of inhibition up- and/or downstream of ferredoxin in Symbiodinium sp. in hospite and in culture. Heterogeneity between coral species and symbiont clades was identified in the thermal sensitivity of photosynthesis in the symbionts of the scleractinian corals Stylophora pistillata and Pocillopora damicornis, as well as among Symbiodinium cultures of clades A, B, and C. The in hospite symbionts of S. pistillata and the cultured clade C Symbiodinium both exhibited similar patterns in that their primary site of thermal inhibition occurred downstream of ferredoxin at 32°C. In contrast, the primary site of thermal inhibition occurred upstream of ferredoxin in clades A and B at 32°C, while at 34°C, all samples showed combined up- and downstream inhibition. Although clade C is common to both P. damicornis and S. pistillata, the manner of thermal inhibition was not consistent when observed in hospite. Results showed that there is heterogeneity in the primal site of thermal damage in Symbiodinium among coral species and symbiont clades. © 2011 Phycological Society of America.
dc.language eng
dc.relation.isbasedon 10.1111/j.1529-8817.2011.01099.x
dc.title Variability in the primary site of photosynthetic damage in symbiodinium sp. (dinophyceae) exposed to thermal stress
dc.type Journal Article
dc.parent Journal of Phycology
dc.journal.volume 1
dc.journal.volume 48
dc.journal.number 1 en_US
dc.publocation USA en_US
dc.publocation Sydney
dc.identifier.startpage 117 en_US
dc.identifier.endpage 126 en_US SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 0607 Plant Biology
dc.personcode 040568
dc.personcode 890085
dc.personcode 995502
dc.percentage 100 en_US Plant Biology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.edition First
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Calvin cycle
dc.description.keywords Coral bleaching
dc.description.keywords Pulse amplitude modulated fluorometry
dc.description.keywords Symbiodinium
dc.description.keywords Thermal inhibition
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history Closed (ID: 3)
utslib.collection.history Uncategorised (ID: 363)

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