Coral disease physiology: the impact of Acroporid white syndrome on Symbiodinium

Roff, G., Kvennefors, E. C. E., Ulstrup, K. E., Fine, M. and Hoegh-Guldberg, O. (2008) Coral disease physiology: the impact of Acroporid white syndrome on Symbiodinium. Coral Reefs, 27 2: 373-377. doi:10.1007/s00338-007-0339-2


Author Roff, G.
Kvennefors, E. C. E.
Ulstrup, K. E.
Fine, M.
Hoegh-Guldberg, O.
Title Coral disease physiology: the impact of Acroporid white syndrome on Symbiodinium
Formatted title
 Coral disease physiology: the impact of Acroporid white syndrome on Symbiodinium
Journal name Coral Reefs   Check publisher's open access policy
ISSN 0722-4028
Publication date 2008-06-01
Year available 2008
Sub-type Article (original research)
DOI 10.1007/s00338-007-0339-2
Open Access Status Not yet assessed
Volume 27
Issue 2
Start page 373
End page 377
Total pages 5
Editor B. E. Brown
Place of publication Germany
Publisher Springer
Language eng
Subject C1
960808 Marine Flora, Fauna and Biodiversity
060203 Ecological Physiology
Abstract Acroporid white syndrome, a disease-like syndrome from the Great Barrier Reef, results from degenerative host tissue at lesion borders. Tissue preceding lesion borders appears visually healthy, but it is currently unclear whether the endosymbiotic zooxanthellae (Symbiodinium) are physiologically impacted. Compared to healthy colonies, this study found no significant differences in symbiont density, mitotic index or chlorophyll a content in tissue bordering (0 cm), and 8 cm away from white syndrome lesions. Using chlorophyll a fluorescence techniques, the border tissue did not appear to be photosynthetically compromised, and Symbiodinium extracted from this area were photosynthetically competent. Transmission electron microscopy revealed extensive degeneration of host tissues surrounding symbionts in affected areas, however, Symbiodinium cells were structurally intact with no sign of in situ degradation. Collectively, these results suggest that Symbiodinium at white syndrome lesion borders exist in a dynamic intra-cellular state during active host tissue loss, yet remain physiologically uncompromised.
Keyword Marine & Freshwater Biology
Marine & Freshwater Biology
MARINE & FRESHWATER BIOLOGY
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Thu, 16 Apr 2009, 22:35:44 EST by Peter Fogarty on behalf of Centre for Marine Studies