Effects of nutrient supply on photosynthesis and pigmentation in Ulva lactuca (Chlorophyta): responses to short-term stress

Figueroa, Félix L.; Israel, Álvaro; Neori, Amir; Martínez, Brezo; Malta, Erik-jan; Ang, Put O.; Inken, Sven; Marquardt, Ronny; Korbee, Nathalie

doi:10.3354/ab00187

Cited by 49 publications

(24 citation statements)

References 53 publications

(65 reference statements)

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“…The greater activation of photoprotective mechanisms in U. lactuca than in S. vulgare, followed by H. spinella, also indicates that dynamic photoinhibition and other expected mechanisms such as production of UV screening and antioxidant substances could also be related to the depth zonation (light history) of the species. In addition, although the HNS cultured U. lactuca is a shade-grown algae (Figueroa et al 2009), it exhibited a very high capacity for acclimation to high irradiance (high recovery) and the highest photosynthetic capacity (ETR). This could be largely due to the positive effect of nutrient supply on photoprotection.…”

Section: Discussionmentioning

confidence: 99%

“…Ulva lactuca was also cultured in ambient, low nutrient supply (LNS) seawater or in high nutrient supply (HNS) seawater with fishpond effluents at the National Center for Mariculture (Israel Oceanographic & Limnological Research). Growth conditions of U. lactuca in the aquaculture system are reported in Figueroa et al (2009).…”

Section: Methodsmentioning

confidence: 99%

“…In addition, the cultured U. lactuca also exhibited higher recovery and lower decrease in thallus absorptance than field collected U. lactuca. Figueroa et al (2009) reported both higher photosynthetic and photoprotective capacities against increased UVR and temperature in U. lactuca cultured under high rather than under low nutrient conditions.…”

Section: Nutrient Conditions and Photoprotection Capacitymentioning

confidence: 99%

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Acclimation of Red Sea macroalgae to solar radiation: photosynthesis and thallus absorptance

Figueroa¹,

Martínez²,

Israel³

et al. 2009

Aquat. Biol.

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Thallus absorptance, daily courses of maximal quantum yields of chlorophyll fluorescence of photosystem II (F v /F m ) and electron transport rates (ETR) were determined in 3 macroalgae (Hypnea spinella, Rhodophyta; Sargassum vulgare, Phaeophyta; and Ulva lactuca, Chlorophyta) collected from a low nutrient supply (LNS) ecosystem (Red Sea, Gulf of Aqaba, Eilat, Israel). In addition, U. lactuca grown previously in high nutrient supply (HNS) fishpond effluents was used to evaluate the effect of nutrient enrichment on photosynthesis. Short-term (2 d) and mid-term (5 d) effects of both photosynthetically active radiation (PAR) and full solar irradiance (PAB: PAR+UVA+UVB) at 3 solar irradiance treatments (no neutral filters, no NF; 2 neutral filter layers, 2NF; and 4 neutral filter layers, 4NF simulating levels of irradiance at 5, 10 and 20 m depth respectively) were evaluated in algae incubated with running seawater. Significant effects of time (variation throughout the day) and irradiance (number of neutral filters) on both F v /F m and ETR were observed. Photoinhibition occurred at noon under the no NF (up to 40% decrease) and 2NF (up to 30% decrease) treatments; however, full recovery in all treatments was reached in the afternoon (dynamic photoinhibition) except in H. spinella. The highest maximum ETR was observed in the no NF treatment despite its strongest photoinhibitory effect. The decrease in F v /F m at noon was similar to or higher under the PAB than under the PAR treatment alone, depending on the species. Photoinhibition was lower and the maximum ETR was higher in HNS than in LNS U. lactuca, indicating positive effects of nutrient supply on both photosynthesis and photoprotection. The maximum ETRs exhibited by different algae may be related to their zonation in the field and the resulting energy supply.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Nutrient Conditions and Photoprotection Capacitymentioning

confidence: 99%

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Acclimation of Red Sea macroalgae to solar radiation: photosynthesis and thallus absorptance

Figueroa¹,

Martínez²,

Israel³

et al. 2009

Aquat. Biol.

Self Cite

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“…Additionally, a study on nutrient uptake characteristics of algae with different life strategies suggested that ni trogen uptake characteristics were aligned to growth strategies and the adaptation of individual species to local nitrogen supply regimes (short-term pulses vs. long-term exposure) (Martínez et al 2012). Figueroa et al (2009) demonstrated the effect of nutrient regime on the capability of Ulva lactuca to respond to temperature and light stress; how such short-term responses are influenced by additional im pacts of high-CO 2 levels is not certain. On the shores of southern Spain, Ulva rigida C. Agardh, Ellisolandia elongata (J. Ellis & Solander) K. R. Hind & G. W. Saunders (formerly Corallina elongata) and Cystoseira tamariscifolia (Hudson) Papenfuss inhabit exposed rocky mid-to low-intertidal shores in close vicinity (Figueroa et al 2014a).…”

Section: Introductionmentioning

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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“…Moreover, De Valera (1940) claims that this phenomena is caused by high concentrations of nutrients in marine water, therefore the change in pigmentation can be used as a contamination indicator. The last experimental ex situ examinations (Figueroa et al 2009;Villares and Carballeira 2004) conducted on marine species of Ulva (U. intestinalis, U. rigida, U. lactuca) also confirmed that nutrient availability has an influence on the pigmentation of thalli and their photosyntheses ratio. Han et al (2008) point out that high concentrations of heavy metals (e.g.…”

Section: Competitionmentioning

confidence: 80%

Abiotic factors affecting the development of Ulva sp. (Ulvophyceae; Chlorophyta) in freshwater ecosystems

Messyasz

Rybak

2010

Aquat Ecol

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The influence of physicochemical factors on the development of Ulva species with distromatic tubular morphology was studied in three streams located in Poznan, Poland. The study evaluated key environmental factors that may influence the colonisation and growth of Ulva populations in freshwater systems. In total, nine environmental parameters were included: temperature, water depth, pH, oxygen (O 2 ), ammonium (NH 4 ? ), nitrate (NO 3 -), phosphate (PO 4 3-), sodium chloride (NaCl) and total iron (Fe). Morphometric features of thalli (length and width, percentage of furcated and young thalli) and surface area of free-floating mats formed by the freshwater populations of Ulva were compared at all sites. Principal components analysis indicated the most important factors influencing Ulva development were sodium chloride concentrations and water depth. Two other key chemical factors affecting the freshwater form of Ulva were phosphate and nitrite concentrations. High concentrations of sodium chloride inhibited the development of Ulva, leading to a lower number of thalli in the Ulva mats. At the sites with stable and deeper water, the surface area of the mats was larger. Both phosphate and nitrite concentrations were positively correlated with an increase in the number of thalli in the mats and the thalli length.

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Effects of nutrient supply on photosynthesis and pigmentation in Ulva lactuca (Chlorophyta): responses to short-term stress

Cited by 49 publications

References 53 publications

Acclimation of Red Sea macroalgae to solar radiation: photosynthesis and thallus absorptance

Acclimation of Red Sea macroalgae to solar radiation: photosynthesis and thallus absorptance

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

Abiotic factors affecting the development of Ulva sp. (Ulvophyceae; Chlorophyta) in freshwater ecosystems

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