Mycosporine-like amino acids and xanthophyll-cycle pigments favour a massive spring bloom development of the dinoflagellate Prorocentrum minimum in Grande Bay (Argentina), an ozone hole affected area

Carreto, José I.; Carignan, Mario O.; Montoya, Nora G.; Cozzolino, Ezequiel; Akselman, Rut

doi:10.1016/j.jmarsys.2017.10.004

Cited by 21 publications

(19 citation statements)

References 115 publications

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“…This conclusion was consistent with the ocean color data obtained in 2011 (Figure S3). Similar successions within the blooming species that shifted from diatoms to dinoflagellates during spring were observed in the temperate southern Baltic Sea (Wasmund et al, ) and Patagonian shelf (Carreto et al, ). We hypothesized that this shifting was attributed to the competitive advantage of dinoflagellates over diatoms in the conditions of increasing surface temperature, stratification, and nutrient limitation (Burkholder et al, ; Smayda, 1997).…”

Section: Discussionsupporting

confidence: 68%

“…Marine phytoplankton in coastal seas contributes essential roles in ecosystem functions and is highly sensitive to physicochemical variations, particularly nutrients, light availability, turbulence, and temperature (Carreto et al, ; Cloern, , ; Glibert, ; Irwin et al, ). Previous studies have evidently revealed the importance of physicochemical properties associated with water masses in shaping spatial distribution of phytoplankton community in several marginal seas (Ardyna et al, ; Bi et al, ; Chakraborty & Lohrenz, ; Goes et al, ).…”

Section: Introductionmentioning

confidence: 99%

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Regulation of Spatial Changes in Phytoplankton Community by Water Column Stability and Nutrients in the Southern Yellow Sea

et al. 2019

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The southern Yellow Sea (SYS) shows extensive spatial variations in water masses, particularly YS Warm Current Water (YSWCW) and YS Coastal Current Water in cold and YS Bottom Cold Water (YSBCW) and Changjiang Diluted Water in warm seasons. These hydrographic processes result in significant spatial changes in nutrients, stratification, and turbidity, which may highly regulate phytoplankton distribution in the SYS. Here, we provide high spatial resolution data sets of phytoplankton in the SYS in all seasons during 2011-2012. Diatoms thrived in eutrophic Changjiang Diluted Water and YS Coastal Current Water regions. Notably, benthic/meroplanktonic diatoms, including Paralia sulcata and Rhaphoneis spp., were dominant near the Changjiang Estuary and Subei Shoal. However, cryptophytes and haptophytes were dominant in oligotrophic offshore regions controlled by YSWCW and YSBCW. Phytoplankton abundance and chlorophyll a were considerably lower in the YSWCW and YSBCW than in other regions, and the community composition varied significantly among regions. Algal blooms were observed off the SYS coast in spring and near the Changjiang Estuary in summer, which were characterized by abundant nutrients, low turbidity, and a relatively stable water column. Canonical correspondence analysis demonstrated that stratification in cold and nutrients in warm seasons were most important variables correlated with phytoplankton community. Variation partitioning analysis confirmed that spatial changes in phytoplankton community composition were largely structured by nutrients rather than by physical factors in all seasons except winter. Our findings highlight the significance of water column stability and nutrients associated with water mass variation in shaping spatial changes of phytoplankton community in the SYS.

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Section: Discussionsupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Regulation of Spatial Changes in Phytoplankton Community by Water Column Stability and Nutrients in the Southern Yellow Sea

et al. 2019

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“…An obligate requirement for PAR results in prolonged exposure to UVR, which is detrimental for most sun-exposed organisms. Furthermore, due to the ozone depletion, the amount of UV reaching Earth tends to increase [ 2 ]. In order to circumvent the photodamage, several organisms have evolved biochemical and mechanical defenses [ 3 ].…”

Section: Ultraviolet Radiation and Natural Uv-absorbing Compoundsmentioning

confidence: 99%

“…A few years later, MAAs have also been detected in corals and cyanobacteria from the Great Barrier Reef [ 11 ]. Since then, MAAs have been identified in a wide variety of organisms, such as heterotrophic bacteria [ 17 ], fungi [ 18 ], cyanobacteria [ 5 , 19 ], microalgae [ 20 , 21 , 22 ], macroalgae [ 23 ], lichens [ 6 ], invertebrates (e.g., dinoflagellates, sponges, corals, sea urchins and crustaceans) [ 2 , 24 , 25 ] and vertebrates (e.g., fishes) [ 26 , 27 ]. Several studies reported that animals can acquire MAAs from their food or through symbiosis and then subsequently accumulate them [ 28 , 29 ].…”

Section: Mycosporine-like Amino Acidsmentioning

confidence: 99%

Mycosporine-Like Amino Acids (MAAs): Biology, Chemistry and Identification Features

Geraldes

Pinto

2021

Pharmaceuticals

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Mycosporines and mycosporine-like amino acids are ultra-violet-absorbing compounds produced by several organisms such as lichens, fungi, algae and cyanobacteria, especially upon exposure to solar ultraviolet radiation. These compounds have photoprotective and antioxidant functions. Mycosporine-like amino acids have been used as a natural bioactive ingredient in cosmetic products. Several reviews have already been developed on these photoprotective compounds, but they focus on specific features. Herein, an extremely complete database on mycosporines and mycosporine-like amino acids, covering the whole class of these natural sunscreen compounds known to date, is presented. Currently, this database has 74 compounds and provides information about the chemistry, absorption maxima, protonated mass, fragments and molecular structure of these UV-absorbing compounds as well as their presence in organisms. This platform completes the previous reviews and is available online for free and in the public domain. This database is a useful tool for natural product data mining, dereplication studies, research working in the field of UV-absorbing compounds mycosporines and being integrated in mass spectrometry library software.

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“…Although the scale of dinoflagellates expands with increasing nitrogen or phosphate content, it cannot replace the pioneer role of the diatom [ 63 – 66 ]. Dinoflagellates can bloom in winter or quickly follow diatom blooms [ 2 , 67 – 69 ], whereas dinoflagellate cysts may sprout slowly due to low temperatures when diatoms bloom. Increased temperature has the opposite effect in promoting bloom time or increasing predation pressure [ 2 ].…”

Section: Discussionmentioning

confidence: 99%

Photosynthesis acclimation under severely fluctuating light conditions allows faster growth of diatoms compared with dinoflagellates

Zhou

et al. 2021

BMC Plant Biol

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Background Diatoms contribute 20% of the global primary production and are adaptable in dynamic environments. Diatoms always bloom earlier in the annual phytoplankton succession instead of dinoflagellates. However, how diatoms acclimate to a dynamic environment, especially under changing light conditions, remains unclear. Results We compared the growth and photosynthesis under fluctuating light conditions of red tide diatom Skeletonema costatum, red tide dinoflagellate Amphidinium carterae, Prorocentrum donghaiense, Karenia mikimotoi, model diatom Phaeodactylum tricornutum, Thalassiosira pseudonana and model dinoflagellate Dinophycae Symbiodinium. Diatoms grew faster and maintained a consistently higher level of photosynthesis. Diatoms were sensitive to the specific inhibitor of Proton Gradient Regulation 5 (PGR5) depending photosynthetic electron flow, which is a crucial mechanism to protect their photosynthetic apparatus under fluctuating light. In contrast, the dinoflagellates were not sensitive to this inhibitor. Therefore, we investigate how PGR5 functions under light fluctuations in the model diatom P. tricornutum by knocking down and overexpressing PGR5. Overexpression of PGR5 reduced the photosystem I acceptor side limitation (Y (NA)) and increased growth rate under severely fluctuating light in contrast to the knockdown of PGR5. Conclusion Diatoms acclimatize to fluctuating light conditions better than dinoflagellates. PGR5 in diatoms can regulate their photosynthetic electron flow and accelerate their growth under severe light fluctuation, supporting fast biomass accumulation under dynamic environments in pioneer blooms.

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Mycosporine-like amino acids and xanthophyll-cycle pigments favour a massive spring bloom development of the dinoflagellate Prorocentrum minimum in Grande Bay (Argentina), an ozone hole affected area

Cited by 21 publications

References 115 publications

Regulation of Spatial Changes in Phytoplankton Community by Water Column Stability and Nutrients in the Southern Yellow Sea

Regulation of Spatial Changes in Phytoplankton Community by Water Column Stability and Nutrients in the Southern Yellow Sea

Mycosporine-Like Amino Acids (MAAs): Biology, Chemistry and Identification Features

Photosynthesis acclimation under severely fluctuating light conditions allows faster growth of diatoms compared with dinoflagellates

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