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- Publisher Website: 10.1016/j.watres.2020.116264
- Scopus: eid_2-s2.0-85089246010
- PMID: 32791455
- WOS: WOS:000580639800076
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Article: The effect of temperature on physiology, toxicity and toxin content of the benthic dinoflagellate Coolia malayensis from a seasonal tropical region
Title | The effect of temperature on physiology, toxicity and toxin content of the benthic dinoflagellate Coolia malayensis from a seasonal tropical region |
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Authors | |
Keywords | Photosynthesis Climate change LC-MS/MS Algal toxin Ocean warming |
Issue Date | 2020 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/watres |
Citation | Water Research, 2020, v. 185, p. article no. 116264 How to Cite? |
Abstract | Coolia malayensis is one of the commonly found benthic dinoflagellates in Hong Kong which can produce biotoxins and threaten the early life stages of marine invertebrates. Seawater temperature has been recognized as one of the primary environmental factors that affect the formation of harmful algal blooms. The present study evaluated the responses of C. malayensis, including growth, toxicity and toxin content (putative analogues of okadaic acid and azaspiracids), after exposure to a range of seven different temperatures (i.e., 16°C, 18°C, 20°C, 22°C, 24°C, 26°C, and 28°C). The highest algal density and specific growth rate were recorded at 24°C. Significantly higher Fv/Fm (maximum quantum yield of PSII) and total phaeo-pigment values were observed in the exponential growth phase at 28°C. The toxicity of the algal extract, which was assessed by the lethality rate of Artemia larvae, increased with temperature. The highest toxin content was detected at the second highest temperature treatment, i.e., 26°C. Overall, temperature had significant effects on the physiological activities and toxicity of C. malayensis. This study has raised attention to the potentially increasing risks posed by toxic benthic dinoflagellates during heat waves in coastal waters. |
Persistent Identifier | http://hdl.handle.net/10722/308421 |
ISSN | 2021 Impact Factor: 13.400 2020 SCImago Journal Rankings: 3.099 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Li, X | - |
dc.contributor.author | Yan, M | - |
dc.contributor.author | Gu, J | - |
dc.contributor.author | Lam, VTT | - |
dc.contributor.author | Wai, TC | - |
dc.contributor.author | Baker, DM | - |
dc.contributor.author | Thompson, PD | - |
dc.contributor.author | Yiu, SKF | - |
dc.contributor.author | Lam, PKS | - |
dc.contributor.author | Leung, PTY | - |
dc.date.accessioned | 2021-12-01T07:53:07Z | - |
dc.date.available | 2021-12-01T07:53:07Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Water Research, 2020, v. 185, p. article no. 116264 | - |
dc.identifier.issn | 0043-1354 | - |
dc.identifier.uri | http://hdl.handle.net/10722/308421 | - |
dc.description.abstract | Coolia malayensis is one of the commonly found benthic dinoflagellates in Hong Kong which can produce biotoxins and threaten the early life stages of marine invertebrates. Seawater temperature has been recognized as one of the primary environmental factors that affect the formation of harmful algal blooms. The present study evaluated the responses of C. malayensis, including growth, toxicity and toxin content (putative analogues of okadaic acid and azaspiracids), after exposure to a range of seven different temperatures (i.e., 16°C, 18°C, 20°C, 22°C, 24°C, 26°C, and 28°C). The highest algal density and specific growth rate were recorded at 24°C. Significantly higher Fv/Fm (maximum quantum yield of PSII) and total phaeo-pigment values were observed in the exponential growth phase at 28°C. The toxicity of the algal extract, which was assessed by the lethality rate of Artemia larvae, increased with temperature. The highest toxin content was detected at the second highest temperature treatment, i.e., 26°C. Overall, temperature had significant effects on the physiological activities and toxicity of C. malayensis. This study has raised attention to the potentially increasing risks posed by toxic benthic dinoflagellates during heat waves in coastal waters. | - |
dc.language | eng | - |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/watres | - |
dc.relation.ispartof | Water Research | - |
dc.subject | Photosynthesis | - |
dc.subject | Climate change | - |
dc.subject | LC-MS/MS | - |
dc.subject | Algal toxin | - |
dc.subject | Ocean warming | - |
dc.title | The effect of temperature on physiology, toxicity and toxin content of the benthic dinoflagellate Coolia malayensis from a seasonal tropical region | - |
dc.type | Article | - |
dc.identifier.email | Baker, DM: dmbaker@hku.hk | - |
dc.identifier.email | Thompson, PD: phil257@connect.hku.hk | - |
dc.identifier.authority | Baker, DM=rp01712 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.watres.2020.116264 | - |
dc.identifier.pmid | 32791455 | - |
dc.identifier.scopus | eid_2-s2.0-85089246010 | - |
dc.identifier.hkuros | 330628 | - |
dc.identifier.volume | 185 | - |
dc.identifier.spage | article no. 116264 | - |
dc.identifier.epage | article no. 116264 | - |
dc.identifier.isi | WOS:000580639800076 | - |
dc.publisher.place | United Kingdom | - |