Occurrence and toxicity of Amphidinium carterae Hulburt in the North Arabian Sea

Baig, Hina; Saifullah, Salim; Dar, Ahsana

doi:10.1016/j.hal.2005.06.010

Cited by 36 publications

(27 citation statements)

References 12 publications

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“…The highest was Amphidinium carterae CCAP 1102/3 (t-test P < 0.001), due to SDA, DHA and EPA (Supplementary Table S2 and Dataset S6 online). However, this strain was not productive under the conditions employed and produces toxins42. When taking growth into account, a group of 11 strains lay above the following 70 th percentiles: omega-3 long-chain PUFA composition (i.e.…”

Section: Resultsmentioning

confidence: 99%

Unlocking nature’s treasure-chest: screening for oleaginous algae

Slocombe

Zhang

Ross

et al. 2015

Sci Rep

100

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Micro-algae synthesize high levels of lipids, carbohydrates and proteins photoautotrophically, thus attracting considerable interest for the biotechnological production of fuels, environmental remediation, functional foods and nutraceuticals. Currently, only a few micro-algae species are grown commercially at large-scale, primarily for “health-foods” and pigments. For a range of potential products (fuel to pharma), high lipid productivity strains are required to mitigate the economic costs of mass culture. Here we present a screen concentrating on marine micro-algal strains, which if suitable for scale-up would minimise competition with agriculture for water. Mass-Spectrophotometric analysis (MS) of nitrogen (N) and carbon (C) was subsequently validated by measurement of total fatty acids (TFA) by Gas-Chromatography (GC). This identified a rapid and accurate screening strategy based on elemental analysis. The screen identified Nannochloropsis oceanica CCAP 849/10 and a marine isolate of Chlorella vulgaris CCAP 211/21A as the best lipid producers. Analysis of C, N, protein, carbohydrate and Fatty Acid (FA) composition identified a suite of strains for further biotechnological applications e.g. Dunaliella polymorpha CCAP 19/14, significantly the most productive for carbohydrates, and Cyclotella cryptica CCAP 1070/2, with utility for EPA production and N-assimilation.

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Section: Resultsmentioning

confidence: 99%

Unlocking nature’s treasure-chest: screening for oleaginous algae

Slocombe

Zhang

Ross

et al. 2015

Sci Rep

100

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“…In trophic modes, some species are phototrophic, while other species are heterotrophic (Baillie 1971, Larsen 1988, Calado et al 1998. Some Amphidinium species produce toxins, such as ciguatera fish poisoning or hemolysins, and have caused mass fish mortality (Yasumoto 1990, Hallegraeff 1993, Nayak et al 1997, Baig et al 2006, Selina and Levchenko 2011. Thus, identifying Amphidinium species is of critical concern to scientists and people involved in aquaculture industries.…”

Section: Dna Extraction Polymerase Chain Reaction (Pcr) Amplificatiomentioning

confidence: 99%

“…Murrary et al (2011) reported that the Queensland strain of A. massartii CS-259 was also non-toxic. Many strains of A. carterae are known to be toxic (Nayak et al 1997, Jeong et al 2001, Baig et al 2006). Therefore, it will be worthwhile investigating the toxicity of other stains of A. massartii to determine whether non-toxicity can be used as a key for differentiating A. massartii from A. carterae.…”

Section: A C D Bmentioning

confidence: 99%

Morphology and molecular characterization of the epiphytic dinoflagellate Amphidinium massartii, isolated from the temperate waters off Jeju Island, Korea

Lee¹,

Jeong²,

Park³

et al. 2013

ALGAE

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Amphidinium massartiiBiecheler is an epiphytic and toxic dinoflagellate. Prior to the present study, A. massartii has been reported in the waters off the Mediterranean, Australian, USA, and Canadian coasts. We isolated Amphidinium cells from the coastal waters of Jeju Island, Korea and their morphology and rDNA sequences indicated that they were A. massartii. Herein, we report for the first time the occurrence of A. massartii in the waters of the temperate region in the northwestern Pacific Ocean. The large subunit (LSU) rDNA sequences of the Korean strains were 0.7% different from those of an Australian strain of A. massartii CS-259, the closest species, but were 4.1-5.8% different from those of the other Australian strains and the USA strains of A. massartii and from those of Amphidinium sp. HG115 that was isolated from subtropical Okinawan waters. In phylogenetic trees based on LSU, internal transcribed spacer, small subunit rDNA, and cytochrome b sequences, the Korean strains belonged to the A. massartii clade, which was clearly divergent from the A. carterae clade. The morphology of the Korean A. massartii strains was similar to that of the originally described French strain and recently described Australian strain. However, we report for the first time here that scales were observed on the surface of the flagella. In conclusion, the Korean A. massartii strains have unique rDNA sequences, even though they have a very similar morphology to that of previously reported strains. This report extends the known range of this dinoflagellate to the temperate waters of the northwestern Pacific Ocean.

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“…However, a direct study in this direction is essential to understand the possible fate of the Amphidinium bloom in the rockpools. Since most of the species and the strains belonging to Amphidinium sensu stricto are toxic and also there is variability in toxicity in some of them (Baig et al 2006), a bloom of any member of toxin producing species should be viewed with concern for the possible ecological consequences in or nearby regions (Anderson et al 2012). Therefore, given the presence of high level of cryptic diversity within the Amphidinium sensu stricto, further precise identification of Amphidinium species and clades must be done for sourcing novel compounds (Murray et al 2012) as well as to identify whether the species recorded will cause endemic or not (supported by toxicity studies).…”

Section: Identification and Distribution Of Amphidiniummentioning

confidence: 99%

Benthic dinoflagellate blooms in tropical intertidal rock pools: elucidation of photoprotection mechanisms

et al. 2017

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LT-RPs. The observed differences can thus be attributed to the microalgal composition differences and to differences in experienced irradiance of these communities. Dynamic photoinhibition was more prominent in LT-RPs followed by MT-RPs and HT-RPs. The high accumulation of photoprotective pigments in HT-RPs (due to prolong exposure to solar radiation) could be the reason for the differences. The presence of reduced de-epoxidation state and the mid-day depression in F v /F m coupled with elevated σ PSII confirmed dominance of NPQ of reaction centres in HT-RPs compared to other pools. This study concludes that RP planktonic microalgae are eurythermal, euryhaline, and euryphotic. Concerned with increasing harmful algal bloom events further studies on diverse aspects of RP microalgae (including chemical mediated interactions) needs attention.

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Occurrence and toxicity of Amphidinium carterae Hulburt in the North Arabian Sea

Cited by 36 publications

References 12 publications

Unlocking nature’s treasure-chest: screening for oleaginous algae

Unlocking nature’s treasure-chest: screening for oleaginous algae

Morphology and molecular characterization of the epiphytic dinoflagellate Amphidinium massartii, isolated from the temperate waters off Jeju Island, Korea

Benthic dinoflagellate blooms in tropical intertidal rock pools: elucidation of photoprotection mechanisms

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