Differences in the photoacclimation and photoprotection exhibited by two species of the ciguatera causing dinoflagellate genus, Gambierdiscus

Leynse, Alexander K.; Parsons, M. L.; Thomas, Serge

doi:10.1016/j.hal.2017.10.008

Cited by 5 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Members of the Gambierdiscus genus depend on light to produce energy for their physiological activities [ 75 ]. As a typical benthic genus, Gambierdiscus achieves optimum growth under low irradiance conditions (49–231 μmol photons m −2 s −1 ) in the laboratory [ 62 , 75 ]. In the natural environment, deeper water layers may have weaker light conditions.…”

Section: Geographic Distribution and Role Of Environmental Factorsmentioning

confidence: 99%

“…Another study showed that there is no significant relationship between depth and Gambierdiscus [ 76 ]. Notably, not all Gambierdiscus are affected by photoinhibition (e.g., G. silvae ) [ 75 ]. The strategies used by different Gambierdiscus species to adapt to different light intensities, especially low light intensity, remain to be explored.…”

Section: Geographic Distribution and Role Of Environmental Factorsmentioning

confidence: 99%

See 1 more Smart Citation

Gambierdiscus and Its Associated Toxins: A Minireview

Wang

Xin

Wang

2022

Toxins

View full text Add to dashboard Cite

Gambierdiscus is a dinoflagellate genus widely distributed throughout tropical and subtropical regions. Some members of this genus can produce a group of potent polycyclic polyether neurotoxins responsible for ciguatera fish poisoning (CFP), one of the most significant food-borne illnesses associated with fish consumption. Ciguatoxins and maitotoxins, the two major toxins produced by Gambierdiscus, act on voltage-gated channels and TRPA1 receptors, consequently leading to poisoning and even death in both humans and animals. Over the past few decades, the occurrence and geographic distribution of CFP have undergone a significant expansion due to intensive anthropogenic activities and global climate change, which results in more human illness, a greater public health impact, and larger economic losses. The global spread of CFP has led to Gambierdiscus and its toxins being considered an environmental and human health concern worldwide. In this review, we seek to provide an overview of recent advances in the field of Gambierdiscus and its associated toxins based on the existing literature combined with re-analyses of current data. The taxonomy, phylogenetics, geographic distribution, environmental regulation, toxin detection method, toxin biosynthesis, and pharmacology and toxicology of Gambierdiscus are summarized and discussed. We also highlight future perspectives on Gambierdiscus and its associated toxins.

show abstract

Section: Geographic Distribution and Role Of Environmental Factorsmentioning

confidence: 99%

Section: Geographic Distribution and Role Of Environmental Factorsmentioning

confidence: 99%

Gambierdiscus and Its Associated Toxins: A Minireview

Wang

Xin

Wang

2022

Toxins

View full text Add to dashboard Cite

show abstract

“…In the benthic dino agellate Gambierdiscus spp. photoacclimation permits that grow at high irradiances [40].…”

Section: Discussionmentioning

confidence: 99%

Effects of the Light Irradiance on the Growth and Lipid Content of Amphidinium carterae (Dinophyceae) for Biofuel Production

2022

View full text Add to dashboard Cite

The irradiance level used to the microalgae cultures can modify the growth and proximate composition, however, this response is specie speci c. The dino agellate group had the potential to be used as a source to biofuel production. In this study was evaluated the effect of ve irradiance levels (50, 100, 150, 200, and 250 µmol photon m -2 s -1 ) on the growth rate, proximal composition, pigment content, and photosynthesis of Amphidinium carterae. The highest cell concentration was for the cultures at 150 µmol photon m -2 s -1 (130 × 10 3 cells mL -1 ), and the lowest values for 50 µmol photon m -2 s -1 (49 × 10 3 cells mL -1 ). The cultures maintained under the low irradiance (50 µmol photon m -2 s -1 ) had the highest values of total dry weight (TDW) (13418 pg cell -1 ), organic dry weight (ODW) (3836 pg cell -1 ), and inorganic dry weight (IDW) (9582 pg cell -1 ). The protein content as the general trend increases signi cantly concerning the irradiance level, with the higher values (87.47 pg cell -1 ) at high irradiance (250 µmol photon m -2 s -1 ).Carbohydrate content was different by the effect of irradiance, with the higher values (32.85 pg cell -1 ) at the low irradiance used (50 µmol photon m -2 s -1 ). Lipid content was modi ed by the effect of irradiance, with the highest values (534.74 pg cell -1 ) at the low irradiance used (50 µmol photon m -2 s -1 ). As a general trend, the high irradiances increased the photosynthesis curves. These ndings demonstrate that the strain of A. carterae used in this work can grow in high irradiances (100 to 250 µmol photon m -2 s -1 ) and increase signi cantly the lipid content on low irradiance used (50 µmol photon m -2 s -1 ).

show abstract