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Juvenile corals can acquire more carbon from high-performance algal symbionts

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dc.contributor Ctr Ecol & Evolutionary Studies
dc.contributor James Cook Univ
dc.contributor James Cook University
dc.contributor Ctr Biol
dc.contributor University Of Groningen
dc.contributor Sch Marine & Trop Biol
dc.contributor Aims Jcu
dc.contributor Univ Groningen
dc.contributor Dept Marine Benth Ecol & Evolut
dc.contributor Australian Inst Marine Sci
dc.contributor Arc Ctr Excellence Coral Reef Studies
dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Institute Of Marine Science (aims) en NEGRI, A. P. CANTIN, N. E. VAN OPPEN, M. J. H. WILLIS, B. L. MIEOG, J. C. 2017-03-21T01:23:02Z 2017-03-21T01:23:02Z 2013-02-28T06:51:05Z 2019-05-09T01:12:42Z 2013-02-28T06:51:05Z 2017-03-21T01:23:02Z 2017-03-21T01:23:02Z 2019-05-09T01:12:42Z 2009-06-01
dc.identifier 8015 en
dc.identifier.citation Cantin N, van Oppen MJH, Willis BL, Mieog JC and Negri AP (2009) Juvenile corals can acquire more carbon from high-performance algal symbionts. Coral Reefs. 28: 405-414. en
dc.identifier.issn 0722-4028
dc.description Link to abstract/full text - en
dc.description.abstract Algal endosymbionts of the genus Symbiodinium play a key role in the nutrition of reef building corals and strongly affect the thermal tolerance and growth rate of the animal host. This study reports that (14)C photosynthate incorporation into juvenile coral tissues was doubled in Acropora millepora harbouring Symbiodinium C1 compared with juveniles from common parentage harbouring Symbiodinium D in a laboratory experiment. Rapid light curves performed on the same corals revealed that the relative electron transport rate of photosystem II (rETR(MAX)) was 87% greater in Symbiodinium C1 than in Symbiodinium D in hospite. The greater relative electron transport through photosystem II of Symbiodinium C1 is positively correlated with increased carbon delivery to the host under the applied experimental conditions (r (2) = 0.91). This may translate into a competitive advantage for juveniles harbouring Symbiodinium C1 under certain field conditions, since rapid early growth typically limits mortality. Both symbiont types exhibited severe reductions in (14)C incorporation during a 10-h exposure to the electron transport blocking herbicide diuron (DCMU), confirming the link between electron transport through PSII and photosynthate incorporation within the host tissue. These findings advance the current understanding of symbiotic relationships between corals and their symbionts, providing evidence that enhanced growth rates of juvenile corals may result from greater translocation of photosynthates from Symbiodinium C1.
dc.description.sponsorship We thank J. Doyle and L. Peplow for technical advice, A. Baird for comments on the experimental design and P. Ralph for critical reading of the manuscript. This work was supported by a grant from AIMS@JCU.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Coral Reefs - pages: 28: 405-414 en
dc.relation.ispartof Null
dc.subject Great-barrier-reef
dc.subject Diuron
dc.subject Pigment
dc.subject Diversity
dc.subject Acropora
dc.subject Bleaching Event
dc.subject Climate-change
dc.subject Chlorophyll Fluorescence
dc.subject Symbiosis
dc.subject Dcmu
dc.subject Photoinhibition
dc.subject Marine & Freshwater Biology
dc.subject Stress
dc.subject Zooxanthellae
dc.subject Coral
dc.subject Symbiodinium
dc.title Juvenile corals can acquire more carbon from high-performance algal symbionts
dc.type journal article en
dc.identifier.doi 10.1007/s00338-009-0478-8
dc.identifier.wos WOS:000265832100010

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