Molecular phylogeny and toxicity of harmful benthic dinoflagellates Coolia (Ostreopsidaceae, Dinophyceae) in a sub-tropical marine ecosystem: The first record from Hong Kong

Leung, Priscilla T.Y.; Yan, Meng; Yiu, Sam King Fung; Lam, Veronica T.T.; Ip, Jack Chi-Ho; Au, Maggie W.Y.; Chen, Chia‐Yun; Wai, Tak-Cheung; Lam, Paul K.S.

doi:10.1016/j.marpolbul.2017.01.017

Cited by 30 publications

(35 citation statements)

References 63 publications

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“…, Leung et al. ), whereas C. santacroce has only been found in the western Atlantic Ocean (Karafas and Tomas , Karafas et al. ; Fig.…”

mentioning

confidence: 98%

“…, Leung et al. ). Coolia monotis appears to be restricted to the northern hemisphere with most records arising from the Mediterranean Sea (Faust , Rhodes et al.…”

mentioning

confidence: 99%

“…, Leung et al. ). The only known location of C. areolata is of the type species from the South Western Indian Ocean at La Réunion Island and Mozambique (Ten‐Hage et al.…”

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confidence: 99%

“…, Nguyen , Leung et al. ). Coolia tropicalis is similarly found in the Western Pacific Ocean, and also in the Western Atlantic and Western Indian oceans (Fraga et al.…”

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confidence: 99%

“…) and invertebrates (Rhodes and Thomas , Leung et al. ) and showing hemolytic activity (Cruz and Okolodkov ), these lipophilic polyether toxins are yet to be implicated in any human illness events. Given that some isolates produce cooliatoxin and others produce different yessotoxin analogs, the toxicology of the genus is currently unresolved.…”

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confidence: 99%

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First description of the environmental niche of the epibenthic dinoflagellate species Coolia palmyrensis, C. malayensis, and C. tropicalis (Dinophyceae) from Eastern Australia

Larsson

Smith

Doblin

2019

Journal of Phycology

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Environmental variables such as temperature, salinity, and irradiance are significant drivers of microalgal growth and distribution. Therefore, understanding how these variables influence fitness of potentially toxic microalgal species is particularly important. In this study, strains of the potentially harmful epibenthic dinoflagellate species Coolia palmyrensis, C. malayensis, and C. tropicalis were isolated from coastal shallow water habitats on the east coast of Australia and identified using the D1‐D3 region of the large subunit (LSU) ribosomal DNA (rDNA). To determine the environmental niche of each taxon, growth was measured across a gradient of temperature (15–30°C), salinity (20–38), and irradiance (10–200 μmol photons · m−2 · s−1). Specific growth rates of Coolia tropicalis were highest under warm temperatures (27°C), low salinities (ca. 23), and intermediate irradiance levels (150 μmol photons · m−2 · s−1), while C. malayensis showed the highest growth at moderate temperatures (24°C) and irradiance levels (150 μmol photons · m−2 · s−1) and growth rates were consistent across the range of salinity levels tested (20–38). Coolia palmyrensis had the highest growth rate of all species tested and favored moderate temperatures (24°C), oceanic salinity (35), and high irradiance (>200 μmol photons · m−2 · s−1). This is the first study to characterize the environmental niche of species from the benthic harmful algal bloom genus Coolia and provides important information to help define species distributions and inform risk management.

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“…, Leung et al. ), whereas C. santacroce has only been found in the western Atlantic Ocean (Karafas and Tomas , Karafas et al. ; Fig.…”

mentioning

confidence: 98%

“…, Leung et al. ). Coolia monotis appears to be restricted to the northern hemisphere with most records arising from the Mediterranean Sea (Faust , Rhodes et al.…”

mentioning

confidence: 99%

“…, Leung et al. ). The only known location of C. areolata is of the type species from the South Western Indian Ocean at La Réunion Island and Mozambique (Ten‐Hage et al.…”

mentioning

confidence: 99%

“…, Nguyen , Leung et al. ). Coolia tropicalis is similarly found in the Western Pacific Ocean, and also in the Western Atlantic and Western Indian oceans (Fraga et al.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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