Abstract
Photosynthetic and optical properties of the marine chlorophyte Dunaliella tertiolecta Butcher were studied in response to irradiance fluctuations caused by surface-wave focusing. The experimental conditions simulated the prominent features of the light field (high average irradiance, spectral composition and statistical properties) in the uppermost few meters of the water column under sunny surface conditions. The properties of algae grown under high-frequency fluctuations were compared with control cells grown under constant light at the same average irradiance (∼800 μmol quantam-2s-1). No significant differences were found for a number of parameters, including growth rate, cellular chlorophyll a and pigment ratios, photosynthetic unit size and density of Photosystem I reaction centers, the rate of photosynthesis at the growth irradiance, dark respiration, and in vivo fluorescence of chlorophyll a per cell. Photosynthetic parameters were not affected by whether the incident light for oxygen exchange measurements was fluctuating or constant. This was the case whether the cells had been previously acclimated to either fluctuating or constant irradiance. Such a photosynthetic response indicates that cells are accomplishing a time integration of the fluctuating light. In addition, although D. tertiolecta is capable of dramatically changing its optical properties in response to low or high growth irradiance levels, the refractive index of the cells, the efficiency factors for light absorption and scattering by individual cells, and chlorophyll-specific absorption and scattering coefficients of cell suspensions, were all very similar under high irradiance, whether or not wave focusing was present.
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Ackleson, S. G., Spinrad, R. W. (1988). Size and refractive index of individual marine particulates: a flow cytometric approach. Appl. Optics 27: 1270–1277
Berner, T., Dubinsky, Z., Wyman, K., Falkowski, P. G. (1989). Photoadaptation and the “package” effect in Dunaliella tertiolecta (Chlorophyceae). J. Phycol. 25: 70–78
Bohren, C. F., Huffman, D. R. (1983) Absorption and scattering of light by small particles. John Wiley & Sons, New York
Bricaud, A., Morel, A. (1986). Light attenuation and scattering by phytoplanktonic cells: a theoretical modeling. Appl. Optics 25: 571–580
Bricaud, A., Morel, A., Prieur, L. (1983). Optical efficiency factors of some phytoplankters. Limnol. Oceanogr. 28: 816–832
Davies, B. H. (1976) Carotenoids. In: Goodwin, T. W. (ed.) Chemistry and biochemistry of plant pigments. Vol. 2. Academic Press, London p. 38–166
Davies-Cooley, R. J., Pridmore, R. D., Hewitt, J. E. (1986). Optical properties of some freshwater phytoplanktonic algae. Hydrobiologia 133: 165–178
Dera, J., Hapter, R., Malewicz, B. (1975). Fluctuation of light in the euphotic zone and its influence on primary production. Merentutkimuslait. Julk. 239: 351–364
Dromgoole, F. I. (1987). Photosynthesis of marine algae in fluctuating light. I. Adjustment of rate in constant and fluctuating light regimes. Funct. Ecol. 1: 377–386
Dromgoole, F. I. (1988). Light fluctuations and the photosynthesis of marine algae. II. Photosynthetic response to frequency, phase ratio and amplitude. Funct. Ecol. 2: 211–219
Duysens, L. N. M. (1956). The flattening of the absorption spectrum of suspensions as compared to that of solutions. Biochim. biophys. Acta 19: 1–12
Falkowski, P. G. (1984a). Physiological responses of phytoplankton to natural light regimes. J. Plankton Res. 6: 295–307
Falkowski, P. G.,(1984b). Kinetics of adaptation to irradiance in Dunaliella tertiolecta. Photosynthetica 18: 62–68
Falkowski, P. G., Owens, T. G. (1980). Light-shade adaptation: two strategies in marine phytoplankton. Pl. Physiol. 66: 592–595
Fréchette, M., Legendre, L. (1978). Photosynthèse phytoplanctonique: réponse à un stimulus simple, imitant les variations rapides de la lumière engendrées par les vagues. J. exp. mar. Biol. Ecol. 32: 15–25
Gallegos, C. L., Platt, T. (1982). Phytoplankton production and water motion in surface mixed layers. Deep-Sea Res. 29: 65–76
Gaudillère, J. P. (1977). Effect of periodic oscillations of artificial light emission on photosynthetic activity. Physiologia Pl. 41: 95–98
Geider, R. J., Osborne, B. A. (1987). Light absorption by a marine diatom: experimental observations and theoretical calculations of the package effect in a small Thalassiosira species. Mar. Biol. 96: 299–308
Greene, R. M., Gerard, V. A. (1990). Effects of high-frequency light fluctuations on growth and photoacclimation of the red alga Chondrus crispus. Mar. Biol. 105: 337–344
Gross, L. J. (1982). Photosynthetic dynamics in varying light environments: a model and its application to whole leaf carbon gain. Ecology 63: 84–93
Guillard, R. R. L., Ryther, J.H. (1962). Studies of marine planktonic diatoms Cyclotella nana (Hustedt) and Detonula confervacea (Cleve) Grant. Can. J. Microbiol. 8: 229–239
Hasle, G. R. (1978). The inverted-microscope method. In: Sournia, A. (ed.) Phytoplankton manual. UNESCO, Paris, p. 88–96
Jeffrey, S. W., Humphrey, G. W. (1975). New spectrophotometric equations for determining chlorophylls a, b, c 1, and c 2 in higher plants, algae and natural phytoplankton. Biochem. Physiol. Pfl. 467: 191–194
Kirk, J. T. O., Allen, R. L. (1965). Dependence of chloroplast pigment synthesis on protein synthesis: effect of actidione. Biochem. biophys. Res. Commun. 21: 523–530
Legendre, L., Rochet, M., Demers, S. (1986). Sea-ice microalgae to test the hypothesis of photosynthetic adaptation to high frequency light fluctuations. J. exp. mar. Biol. Ecol. 97: 321–326
Lund, J. W. G., Kipling, C., Lecren, E. D. (1958). The inverted microscope method of estimating algal numbers and the statistical basis of estimation by counting. Hydrobiologia 11: 143–170
Marra, J. (1980). Vertical mixing and primary production. In: Falkowski, P. G. (ed.) Primary productivity in the sea. Plenum Press, New York, p. 121–137
McCree, K. J., Loomis, R. S. (1969). Photosynthesis in fluctuating light. Ecology 50: 422–428
Morel, A. (1987). Chlorophyll-specific scattering coefficient of phytoplankton. A simplified theoretical approach. Deep-Sea Res. 34: 1093–1105
Morel, A., Bricaud, A. (1981). Theoretical results concerning light absorption in a discrete medium, and application to specific absorption of phytoplankton. Deep-Sea Res. 28: 1375–1393
Morel, A., Bricaud, A. (1986). Inherent optical properties of algal cells including picoplankton: theoretical and experimental results. Can. Bull. Fish. aquat. Sciences 214: 521–559
Perry, M. J., Talbot, M. C., Alberte, R. S. (1981). Photoadaptation in marine phytoplankton: response of the photosynthetic unit. Mar. Biol. 62: 91–101
Phillips, J. N., Jr., Myers, J. (1954). Growth rate of Chlorella in flashing light. Pl. Physiol. 29: 152–161
Quéguiner, B., Legendre, L. (1986). Phytoplankton photosynthetic adaptation to high frequency light fluctuations simulating those induced by sea surface waves. Mar. Biol. 90: 483–491
Richardson, K., Beardall, J., Raven, J. A. (1983). Adaptation of unicellular algae to irradiance: an analysis of strategies. New Phytol. 93: 157–191
Stramski, D., Legendre, L. (1992). Laboratory simulation of light-focusing by water-surface waves. Mar. Biol. 114: 341–348
Stramski, D., Morel, A. (1990). Optical properties of photosynthetic picoplankton in different physiological states as affected by growth irradiance. Deep-Sea Res. 37: 245–266
Stramski, D., Morel, A., Bricaud, A. (1988). Modeling the light attenuation and scattering by spherical phytoplanktonic cells: a retrieval of the bulk refractive index. Appl. Optics 27: 3954–3957
Sukenik, A., Bennett, J., Falkowski, P. G. (1987). Light-saturated photosynthesis—limitation by electron transport or carbon fixation? Biochim. biophys. Acta 891: 205–215
Thornley, J. M. H. (1974). Light fluctuations and photosynthesis. Ann. Bot. 38: 363–373
Van de Hulst, H. C. (1957). Light scattering by small particles. John Wiley, New York
Walsh, P., Legendre, L. (1982). Effets des fluctuations rapides de la lumière sur la photosynthèse du phytoplancton. J. Plankton Res. 4: 313–327
Walsh, P., Legendre, L. (1983). Photosynthesis of natural phytoplankton under high frequency light fluctuations simulating those induced by sea surface waves. Limnol. Oceanogr. 28: 688–697
Walsh, P., Legendre, L. (1988). Photosynthetic responses of the diatom Phaeodactylum tricornutum to high frequency light fluctuations simulating those induced by sea surface waves. J. Plankton Res. 10: 1077–1082
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Communicated by M. G. Hadfield, Honolulu
Contribution to the program of GIROQ (Groupe Interuniversitaire de Recherches Océanographiques du Québec)
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Stramski, D., Rosenberg, G. & Legendre, L. Photosynthetic and optical properties of the marine chlorophyte Dunaliella tertiolecta grown under fluctuating light caused by surface-wave focusing. Marine Biology 115, 363–372 (1993). https://doi.org/10.1007/BF00349833
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DOI: https://doi.org/10.1007/BF00349833