Effects of nitrogen and phosphorus availabilities on growth, pigment, and protein contents in Hypnea cervicornis J. Agardh (Gigartinales, Rhodophyta)

Ribeiro, Ana Lívia N. L.; Tesima, Kenner E.; Souza, Jônatas M. C.; Yokoya, Nair S.

doi:10.1007/s10811-012-9938-6

Cited by 22 publications

(6 citation statements)

References 29 publications

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“…For example, in the N3P3 treatment, the protein content of both strains increased to 40%. Similarly, a previous study found the content of total soluble proteins in Hypnea cervicornis increased by 67% when the concentrations of nitrate and phosphate in the culture medium were increased by 200% (Ribeiro et al, 2012). The protein content in Heterocapsa sp.…”

Section: Effect Of Nitrogen and Phosphorus Concentrations On Protein supporting

confidence: 62%

Nutrient Enrichment Improves Growth and Food Quality of Two Strains of the Economic Seaweed Pyropia haitanensis

Wang

et al. 2020

Front. Mar. Sci.

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Section: Effect Of Nitrogen and Phosphorus Concentrations On Protein supporting

confidence: 62%

Nutrient Enrichment Improves Growth and Food Quality of Two Strains of the Economic Seaweed Pyropia haitanensis

Wang

et al. 2020

Front. Mar. Sci.

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“…Nitrogen enrichment is likely to affect pigment contents including chlorophyll (Figueroa et al 2009), protein (Ribeiro et al 2013) and MAA (Figueroa et al 2010) concentrations. Previous studies have shown a direct relationship between N-uptake and chl a and b levels in Ulva sp.…”

Section: Pigmentsmentioning

confidence: 99%

Short-term effects of CO2, nutrients and temperature on three marine macroalgae under solar radiation

Stengel¹,

Conde-Álvarez²,

Connan³

et al. 2014

Aquat. Biol.

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Three macroalgal species belonging to Chlorophyta (Ulva rigida), Rhodophyta (Ellisolandia elongata) and Phaeophyceae (Heterokontophyta; Cystoseira tamariscifolia), naturally growing at the same shore level and representing 3 morpho-functional groups, were exposed to short-term changes in temperature under different carbon and nitrogen regimes. Experiments were conducted in outdoor tanks at 4 combinations of carbon and nitrogen levels under reduced solar radiation. In vivo chl a fluorescence parameters and pigment contents were monitored to assess diurnal physiological responses and potential for recovery. Strong fluctuations in chl a fluorescence parameters, but not in chl a content, were observed in response to diurnal variation in solar radiation and light climate within the tanks; sensitivity varied between algal species and, in some cases, depended on the carbon and nitrogen regime. Nitrogen uptake was similarly high in U. rigida and E. elongata and lowest in C. tamariscifolia. In U. rigida and E. elongata, chl a concentrations decreased after high-carbon treatments. Effective photosystem II quantum efficiency was reduced in all species at noon, and lowest in C. tamariscifolia. The results highlight the complexity of physiological short-term acclimations which were most likely linked to biochemical changes at the cellular level. Long-term experiments are required in future for more comprehensive investigation of the observed interactive effects of the different environmental parameters

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“…This trend is related to the major availability of dissolved nutrients measured in macroalga samples such that prior assimilation accounted for the maintenance of higher quantities of pigments. Environmental levels of nutrients found at this collection site could also improve the quantities of nitrogen compounds, such as ammonium, nitrate and phosphates, which are needed to synthesize photosynthetic pigments . It follows that limited nutrients throughout the experimental period could have caused the reduction in pigment contents observed in samples from both collection points.…”

Section: Discussionmentioning

confidence: 88%

Effects of Ultraviolet Radiation (UV‐A+UV‐B) on the Antioxidant Metabolism of the Red Macroalga Species Acanthophora spicifera (Rhodophyta, Ceramiales) From Different Salinity and Nutrient Conditions

Pereira

Fonseca

et al. 2019

Photochem & Photobiology

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Acanthophora spicifera (M.Vahl) Børgesen is a macroalga of great economic importance. This study evaluated the antioxidant responses of two algal populations of A. spicifera adapted to different abiotic conditions when exposed to ultraviolet-A+ultraviolet-B radiation (UV-A+UV-B). Experiments were performed using the water at two collection points for 7 days of acclimatization and 7 days of exposure to UVR (3 h per day), followed by metabolic analyses. At point 1, water of 30 AE 1 practical salinity unit (psu) had concentrations of 1.06 AE 0.27 mM NH þ 4 , 8.47 AE 0.01 mM NO À 3 , 0.17 AE 0.01 mM PO À3 4 and pH 7.88. At point 2, water of 35 AE 1 psu had concentrations of 1.13 AE 0.05 mM NH þ 4 , 3.73 AE 0.01 mM NO À 3 , 0.52 AE 0.01 mM PO À3 4and pH 8.55. Chlorophyll a, phycobiliproteins, carotenoids, mycosporins, polyphenolics and antioxidant enzymes (catalase, superoxide dismutase and guaiacol peroxidase) were evaluated. The present study demonstrates that ultraviolet radiation triggers antioxidant activity in the A. spicifera. However, such activation resulted in greater responses in samples of the point 1, with lower salinity and highest concentration of nutrients.

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Effects of nitrogen and phosphorus availabilities on growth, pigment, and protein contents in Hypnea cervicornis J. Agardh (Gigartinales, Rhodophyta)

Cited by 22 publications

References 29 publications

Nutrient Enrichment Improves Growth and Food Quality of Two Strains of the Economic Seaweed Pyropia haitanensis

Nutrient Enrichment Improves Growth and Food Quality of Two Strains of the Economic Seaweed Pyropia haitanensis

Short-term effects of CO2, nutrients and temperature on three marine macroalgae under solar radiation

Effects of Ultraviolet Radiation (UV‐A+UV‐B) on the Antioxidant Metabolism of the Red Macroalga Species Acanthophora spicifera (Rhodophyta, Ceramiales) From Different Salinity and Nutrient Conditions

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