Concentrations of dimethylsulfoniopropionate and dimethyl sulfide are strain-specific in symbiotic dinoflagellates (symbiodinium sp., dinophyceae)

Steinke, M; Brading, P; Kerrison, P; Warner, ME; Suggett, DJ

Concentrations of dimethylsulfoniopropionate and dimethyl sulfide are strain-specific in symbiotic dinoflagellates (symbiodinium sp., dinophyceae)

Steinke, M Brading, P Kerrison, P Warner, ME Suggett, DJ

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Publication Type:: Journal Article
Citation:: Journal of Phycology, 2011, 47 (4), pp. 775 - 783
Issue Date:: 2011-08-01

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Field	Value	Language
dc.contributor.author	Steinke, M	en_US
dc.contributor.author	Brading, P	en_US
dc.contributor.author	Kerrison, P	en_US
dc.contributor.author	Warner, ME	en_US
dc.contributor.author	Suggett, DJ https://orcid.org/0000-0001-5326-2520	en_US
dc.date.issued	2011-08-01	en_US
dc.identifier.citation	Journal of Phycology, 2011, 47 (4), pp. 775 - 783	en_US
dc.identifier.issn	0022-3646	en_US
dc.identifier.uri	http://hdl.handle.net/10453/28883
dc.description.abstract	Dimethyl sulfide (DMS) and dimethylsulfoniopropionate (DMSP) are sulfur compounds that may function as antioxidants in algae. Symbiotic dinoflagellates of the genus Symbiodinium show strain-specific differences in their susceptibility to temperature-induced oxidative stress and have been shown to contain high concentrations of DMSP. We investigated continuous cultures of four strains from distinct phylotypes (A1, A13, A2, and B1) that can be characterized by differential thermal tolerances. We hypothesized that strains with high thermal tolerance have higher concentrations of DMSP and DMS in comparison to strains with low thermal tolerance. DMSP concentrations were strain-specific with highest concentrations occurring in A1 (225±3.5mmol·L-1 cell volume [CV]) and lowest in A2 (158±3.8mmol· L-1CV). Both strains have high thermal tolerance. Strains with low thermal tolerance (A13 and B1) showed DMSP concentrations in between these extremes (194±19.0 and 160±6.1mmol·L-1 CV, respectively). DMS data further confirmed this general pattern with high DMS concentrations in A1 and A13 (4.1±1.22 and 2.1±0.37mmol·L-1CV, respectively) and low DMS concentrations in A2 and B1 (0.3±0.06 and 0.5±0.22mmol·L-1 CV, respectively). Hence, the strain-specific differences in DMSP and DMS concentrations did not match the different abilities of the four phylotypes to withstand thermal stress. Future work should quantify the possible dynamics in DMSP and DMS concentrations during periods of high oxidative stress in Symbiodinium sp. and address the role of these antioxidants in zooxanthellate cnidarians. © 2011 Phycological Society of America.	en_US
dc.relation.ispartof	Journal of Phycology	en_US
dc.relation.isbasedon	10.1111/j.1529-8817.2011.01011.x	en_US
dc.subject.classification	Marine Biology & Hydrobiology	en_US
dc.title	Concentrations of dimethylsulfoniopropionate and dimethyl sulfide are strain-specific in symbiotic dinoflagellates (symbiodinium sp., dinophyceae)	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	47	en_US
utslib.for	0607 Plant Biology	en_US
utslib.for	0704 Fisheries Sciences	en_US
pubs.embargo.period	Not known	en_US
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 - Climate Change Cluster
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	47	en_US

Abstract:

Dimethyl sulfide (DMS) and dimethylsulfoniopropionate (DMSP) are sulfur compounds that may function as antioxidants in algae. Symbiotic dinoflagellates of the genus Symbiodinium show strain-specific differences in their susceptibility to temperature-induced oxidative stress and have been shown to contain high concentrations of DMSP. We investigated continuous cultures of four strains from distinct phylotypes (A1, A13, A2, and B1) that can be characterized by differential thermal tolerances. We hypothesized that strains with high thermal tolerance have higher concentrations of DMSP and DMS in comparison to strains with low thermal tolerance. DMSP concentrations were strain-specific with highest concentrations occurring in A1 (225±3.5mmol·L-1 cell volume [CV]) and lowest in A2 (158±3.8mmol· L-1CV). Both strains have high thermal tolerance. Strains with low thermal tolerance (A13 and B1) showed DMSP concentrations in between these extremes (194±19.0 and 160±6.1mmol·L-1 CV, respectively). DMS data further confirmed this general pattern with high DMS concentrations in A1 and A13 (4.1±1.22 and 2.1±0.37mmol·L-1CV, respectively) and low DMS concentrations in A2 and B1 (0.3±0.06 and 0.5±0.22mmol·L-1 CV, respectively). Hence, the strain-specific differences in DMSP and DMS concentrations did not match the different abilities of the four phylotypes to withstand thermal stress. Future work should quantify the possible dynamics in DMSP and DMS concentrations during periods of high oxidative stress in Symbiodinium sp. and address the role of these antioxidants in zooxanthellate cnidarians. © 2011 Phycological Society of America.

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