Interactive effects of solar radiation and inorganic nutrients on biofiltration, biomass production, photosynthetic activity and the accumulation of bioactive compounds in Gracilaria cornea (Rhodophyta)

Figueroa, Félix L.; Álvarez‐Gómez, Félix; Bonomi-Barufi, José; Vega, Julia; Massocato, Thaís Fávero; Gómez‐Pinchetti, Juan Luis; Korbee, Nathalie

doi:10.1016/j.algal.2022.102890

Cited by 9 publications

(8 citation statements)

References 121 publications

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“…By contrast, samples remained red-coloured when supplied with 300 µM of NaNO 3 , due to the high level of phycoerythrin, the pigment characteristic of the colour of red macroalgae [ 47 ]. Similarly to the present study, in a 35-day outdoor cultivation experiment involving the effect of UV and nutrients, the phycobiliprotein content of Gracilaria cornea increased following the nitrogen addition but no effect of UV radiation was observed [ 37 ]. Data also showed that the levels of porphyra-334, shinorine and asterina-330 decreased during cultivation, but that the addition of nitrate resulted in a less significant decrease in MAA levels.…”

Section: Discussionsupporting

confidence: 70%

“…The synthesis of both MAAs and pigments in P. palmata could then have been limited by the cultivation conditions. An insufficient amount of PAR light may have been insufficient to induce the accumulation of photoprotective MAAs as the daily irradiance doses received by the cultured algae were quite low compared to solar radiation [ 37 ] and the ratio PAR/UV radiation was also much lower under laboratory conditions compared to natural solar light since the PAR light source cannot optimally simulate the natural light. This was already demonstrated in wild populations of P. palmata , with asterina-330, which is only synthesized during periods of high irradiance [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

“…Chandra et al also showed a 75% increase in the MAAs accumulation under UVB exposure over UVA exposure, and nearly 4-fold more than with PAR [ 41 ]. Figueroa et al [ 37 ] even observed a 16-fold higher content of MAAs in the red macroalga Gracilaria cornea cultivated under solar radiation for 35 days. Considering pigments, the photosynthetic activity may have also been modified by the irradiance (PAR and PAR + UV) in the cultivation room (i.e., 65 µmol photons m −2 s −1 , maximum limit of the laboratory equipment), which corresponds to low-light conditions commonly used in laboratory experiments (i.e., usually between 40 and 300 μmol photons m −2 s −1 ) [ 6 , 38 , 42 , 43 , 44 ].…”

Section: Discussionmentioning

confidence: 99%

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Mycosporine-like Amino Acids in Palmaria palmata (Rhodophyta): Specific Implication of Usujirene in Photoprotection

Lalegerie,

Stiger-Pouvreau,

Connan

2024

Marine Drugs

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The effect of UV radiation on the accumulation of mycosporine-like amino acids (MAAs) and pigments was investigated on red macroalga Palmaria palmata cultivated for 21 days. The data were combined with the effect of NaNO3 to further investigate the synthesis of these nitrogenous compounds. A progressive decrease in both total MAA and pigment contents was observed, with a positive effect of nitrate supply. Usujirene was the only MAA exhibiting a significantly increasing content when exposed to UV radiation, changing from 9% to 24% of the total MAA’s contribution, with no variation observed with NaNO3. This suggests a specific induction or synthesis pathway of usujirene for photoprotection, while the synthesis of other MAAs could have been limited by an insufficient amount of UV radiation and/or irradiance. The photoprotective ability of some MAAs could have been impacted by nitrogen starvation over time, resulting in a limited synthesis and/or potential use of MAAs as a nitrogen source for red macroalgae. The data confirmed the multiple effects of environmental factors on the synthesis of MAAs while providing new insights into the specific synthesis of usujirene, which could find an application in the cosmetics sector as natural sunscreen or an anti-ageing agent.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Mycosporine-like Amino Acids in Palmaria palmata (Rhodophyta): Specific Implication of Usujirene in Photoprotection

Lalegerie,

Stiger-Pouvreau,

Connan

2024

Marine Drugs

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“…CO 2 and nitrate availability and light quality radiation have effects on the color variation and biochemical composition in seaweeds as in the case of Porphyra sp. (Figueroa et al 1995) and in other red algae as Gracilariopis longissima (Bermejo et al 2020) or Gracilaria cornea (Figueroa et al 2022).…”

Section: Discussionmentioning

confidence: 99%

Advancing Porphyra linearis (Rhodophyta, Bangiales) culture: low cost artificial seawater, nitrate supply, photosynthetic activity and energy dissipation

Pereira,

Korbee,

Vega

et al. 2024

Preprint

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Fertilizer use in agriculture and aquaculture significantly contributes to nitrate-rich effluent discharge into aquatic environments. Porphyra's high surface area/volume enables efficient nutrient assimilation. This study aimed to identify a cost-effective, efficient artificial seawater medium for Porphyra linearis cultivation and determine the optimal nitrate concentration to enhance photosynthetic activity. P. linearis was grown in three different salt media, with photosynthetic and biochemical parameters assessed, showing no differences. The nitrate experiment (7 days) using low-cost salt and varied concentration (0 to 6.5 mM) revealed optimal nitrate uptake at 3 and 5 mM, while 6.5 mM indicated saturation/toxicity. The phycobiliproteins contents did not increase compared to the 0 mM, but exhibited greater functionality, as evidenced by the enhanced photosynthetic parameters. Chlorophyll a peaked in 3 mM, whereas lutein and β-carotene in 0 and 3 mM. The thalli turned greenish and appeared to have degraded branches under 0 mM. Growth rate was the same under all nitrate concentration and higher than under 0 mM. The presence of nitrate increased ETRin situ and ETRmax, whereas the absence decreased the range between optimal irradiance for photoinhibition (EoptETR) and saturated irradiance for photosynthesis (EkETR) and between saturated irradiance for non-photochemical quenching (EkNPQ) and EkETR, suggesting that under more nitrate available the algae dissipate less energy. P. linearis showed a wide range of nitrate use without variation in pigment composition in contrast to photosynthetic capacity. The 1.5 and 3 mM in cultivation significantly enhance the photosynthetic response of P. linearis, supporting their potential application in IMTA and bioremediation.

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“…Macroalgae belong to a diverse group of organisms that could be exploited for biomolecule application since MAAs are found in this group in high concentrations, especially in red macroalgae, and mainly in the order Bangiales, as Porphyra spp. The content of MAAs can vary depending on the environmental factors, UV radiation being one of the most influential factors [ 20 , 21 , 22 ]. Despite their potential as active biomolecules, few authors have analyzed the in vitro photoprotective capacity of algae extracts or creams that contained algae extracts [ 23 , 24 , 25 ], and in vivo UVB-photoprotective activity of macroalgae extracts has been also reported [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Silver Nanoparticles and Its Combination with Pyropia columbina (Rhodophyta) Extracts for a Cosmeceutical Application

et al. 2023

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We report the green synthesis of silver nanoparticles (AgNPs) by using daisy petals (Bellis perennis), leek (Allium porrum) and garlic skin (Allium sativum) as reducing agents and water as solvent. AgNPs are obtained with high monodispersity, spherical shapes and size ranging from 5 to 35 nm and characterized by UV-Vis and TEM techniques. The obtained yields in AgNPs are in concordance with the total phenolic content of each plant. We also study the incorporation of AgNPs in combination with the red algae Pyropia columbina extracts (PCE) into cosmetic formulations and analyze their combined effect as photoprotective agents. Moreover, we carry out the inclusion of the PCE containing mycosporine-like amino acids (MAAs), which are strong UV-absorbing and antioxidant compounds, into β-cyclodextrin (βCD) and pNIPAM nanoparticles and analyze stability and release. The thermoresponsive polymer is grown by free radical polymerization using N-isopropylacrylamide (NIPAM) as the monomer, N,N′-methylenebisacrylamide (BIS) as the cross-linker, and 2,2′-azobis(2-methylpropionamidene) (V50) as the initiator, while βCD complex is prepared by heating in water. We evaluate the nanoparticle and βCD complex formation by UV-Vis and FT-IR, and NMR spectroscopies, respectively, and the nanoparticles’ morphology, including particle size, by TEM. The cosmetic formulations are subsequently subjected to accelerated stability tests and photoprotective analyses: a synergistic effect in the combination of AgNPs and PCE in photoprotection was found. It is not related to a UV screen effect but to the antioxidant activity, having potential against photoaging.

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Interactive effects of solar radiation and inorganic nutrients on biofiltration, biomass production, photosynthetic activity and the accumulation of bioactive compounds in Gracilaria cornea (Rhodophyta)

Cited by 9 publications

References 121 publications

Mycosporine-like Amino Acids in Palmaria palmata (Rhodophyta): Specific Implication of Usujirene in Photoprotection

Mycosporine-like Amino Acids in Palmaria palmata (Rhodophyta): Specific Implication of Usujirene in Photoprotection

Advancing Porphyra linearis (Rhodophyta, Bangiales) culture: low cost artificial seawater, nitrate supply, photosynthetic activity and energy dissipation

Green Synthesis of Silver Nanoparticles and Its Combination with Pyropia columbina (Rhodophyta) Extracts for a Cosmeceutical Application

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