Temperature regulation of nitrate uptake: A novel hypothesis about nitrate uptake and reduction in cool-water diatoms

Limnology and Oceanography

Volumn 44, Issue 3 I, 1999, Pages 556-572

  Lomas, Michael W ^a   Gilbert, Patricia M ^a  

^a UNIVERSITY OF MARYLAND CENTER FOR ENVIRONMENTAL SCIENCE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DIATOM; NITRATE; NUTRIENT UPTAKE; TEMPERATURE EFFECT;

CHESAPEAKE BAY; DELAWARE BAY; UNITED STATES;

ALGAE; BACILLARIOPHYTA; INVERTEBRATA; NITZSCHIA ALBA; RHIZOSELENIA;

EID: 0345346370     PISSN: 00243590     EISSN: None     Source Type: Journal    
DOI: 10.4319/lo.1999.44.3.0556     Document Type: Article

References (137)

1. AMY, N. K., AND R. H. GARRETT. 1974. Purification and characterization of the nitrate reductase from the diatom Thalassiosira pseudonana. Plant Physiol. 54: 629-637.
2. ANDERSON, S. M., AND O. A. ROELS. 1981. Effects of light intensity on nitrate and nitrite uptake and excretion by Chaetoceros curvisetus. Mar. Biol. 62: 257-261.
3. ANTIA, N. J., C. D. MCALLISTER, T. R. PARSONS, K. STEPHENS, AND J. D. H. STRICKLAND. 1963. Further measurements of primary production using a large volume plastic sphere. Limnol. Oceanogr. 8: 166-183.
4. BERGES, J. A., AND P. J. HARRISON. 1995. Nitrate reductase activity quantitatively predicts the rate of nitrate incorporation under steady state light limitation: A revised assay and characterization of the enzyme in three species of marine phytoplankton. Limnol. Oceanogr. 40: 82-93.
5. 3 uptake in the water column of the Neuse River estuary, North Carolina. Estuaries 17: 361-371.
6. 2 production. Mar. Ecol. Prog. Ser. 96: 291-299.
7. _, _, AND B. B. WARD. 1994. Nitrogen uptake, dissolved organic nitrogen release and new production. Science 265: 1843-1846.
8. BUNT, J. S., AND C. C. LEE. 1970. Seasonal primary production in Antarctic sea ice at McMurdo Sound in 1967. J. Mar. Res. 28: 304-320.
9. BUTLER, E. I., S. KNOX, AND M. I. LIDDICOAT. 1979. The relationship between inorganic and organic nutrients in sea water. J. Mar. Biol. Assoc. U.K. 59: 239-250.
10. CHAN, Y. K., AND N. E. R. CAMPBELL. 1978. Phytoplankton uptake and excretion of assimilated nitrate in a small Canadian shield lake. Appl. Environ. Microbiol. 35: 1052-1060.
11. CLARKE, A., AND R. J. G. LEAVEY. 1996. The seasonal cycle of phytoplankton, macronutrients, and the microbial community in a nearshore Antarctic marine ecosystem. Limnol. Oceanogr. 41: 1281-1294.
12. CLOERN, J. E., T. M. POWELL, AND L. M. HUZZEY. 1989. Spatial and temporal variability in South San Francisco Bay II. Temporal changes in salinity, suspended sediments, and phytoplankton biomass and productivity over tidal time scales. Estuarine Coastal Shelf Sci. 28: 599-613.
13. COLLOS, Y. 1982. Transient situations in nitrate assimilation by marine diatoms. 2. Changes in nitrate and nitrite following a nitrate perturbation. Limnol. Oceanogr. 27: 528-535.
14. _, C. DESCOLAS-GROS, AND F. MORNET. 1996. Diel variations in dissolved organic nitrogen in a coastal pond: Relationships with carbon and nitrogen metabolism. J. Exp. Mar. Biol. Ecol. 202: 177-189.
15. _, G. DOHLER, AND I. BIERMANN. 1992a. Production of dissolved organic nitrogen during uptake of nitrate by Synedra planctonica: Implications for estimates of new production in the oceans. J. Plankton Res. 14: 1025-1029.
16. 13N. J. Exp. Mar. Biol. Ecol. 163: 251-260.
17. _, A. VAQUER, B. BIBENT, G. SLAWYK, N. GARCIA, AND P. SOUCHU. 1997. Variability in nitrate uptake kinetics of phytoplankton communities in a Mediterranean coastal lagoon. Estuarine Coastal Shelf Sci. 44: 369-375.
18. CONOVER, S. A. M. 1975. Partitioning of nitrogen and carbon in cultures of the marine diatom Thalassiosira fluviatilis supplied with nitrate, ammonium, or urea. Mar. Biol. 32: 231-246.
19. CONWAY, H. L., AND P. J. HARRISON. 1977. Marine diatoms grown in chemostats under silicate or ammonium limitation. 4. Transient response of Chaetoceros debilis, Skeletonema costatum, and Thalassiosira gravida to a single addition of the limiting nutrient. Mar. Biol. 43: 33-43.
20. CULLEN, J. J., AND J. G. MACINTYRE. 1998. Behavior, physiology and the niche of depth-regulating phytoplankton, p. 1-21. In D. M. Anderson, A. D. Cembella, and G. M. Hallegraeff [eds.], The physiological ecology of harmful algal blooms. Springer.
21. DAUCHEZ, S., L. LEGENDRE, L. FORTIER, AND M. LEVASSEUR. 1996. Nitrate uptake by size-fractionated phytoplankton on the Scotian Shelf (Northwest Atlantic): Spatial and temporal variability. J. Plankton Res. 18: 577-595.
22. DAVISON, I. R. 1991. Environmental effects on algal photosynthesis: Temperature. J. Phycol. 27: 2-8.
23. DESCOLAS-GROS, C., AND G. DE BILLY. 1987. Temperature adaptation of RuBP carboxylase: Kinetic properties in marine antarctic diatoms. J. Exp. Mar. Biol. Ecol. 108: 147-158.
24. 15N-nitrate by Antarctic diatoms: Dependence on the daytime and effect of UV-B radiation. Biochem. Physiol. Pflanz. 187: 347-355.
25. DORTCH, Q. 1982. Effect of growth conditions on accumulation of internal pools of nitrate, ammonium, amino acids, and protein in three marine diatoms. J. Exp. Mar. Biol. Ecol. 61: 243-264.
26. _, J. R. CLAYTON, JR., S. S. THORESEN, AND S. I. AHMED. 1984. Species differences in accumulation of nitrogen pools in phytoplankton. Mar. Biol. 81: 237-250.
27. _, P. A. THOMPSON, AND P. J. HARRISON. 1991. Variability in nitrate uptake kinetics in Thalassiosira pseudonana (Bacillariophyceae). J. Phycol. 27: 35-39.
28. 12 and marine ecology. IV. The kinetics of uptake, growth, and inhibition in Monochrysis lutheri. J. Mar. Biol. Assoc. U.K. 48: 689-733.
29. DUGDALE, R. C., AND J. J. GOERING. 1977. Uptake of new and regenerated forms of nitrogen in primary productivity. Limnol. Oceanogr. 12: 196-206.
30. _, F. P. WILKERSON, R. T. BARBER, AND F. P. CHAVEZ. 1992. Estimating new production in the Equatorial Pacific Ocean at 150°W. J. Geophys. Res. 97: 681-686.
31. EPPLEY, R. W. 1972. Temperature and phytoplankton growth in the sea. Fish. Bull. 70: 1063-1085.
32. _, J. L. COATSWORTH, AND L. SOLORZANO. 1969a. Studies of nitrate reductase in marine phytoplankton. Limnol. Oceanogr. 14: 194-205.
33. _, AND E. H. RENGER. 1974. Nitrogen assimilation of an oceanic diatom in nitrogen-limited continuous culture. J. Phycol. 10: 15-23.
34. _, AND _. 1992. Nitrate utilization by plankton in the Equatorial Pacific March 1988 along 150°W. J. Geophys. Res. 97: 663-668.
35. _, J. N. ROGERS, AND J. J. MCCARTHY. 1969b. Half-saturation constants for uptake of nitrate and ammonium by marine phytoplankton. Limnol. Oceanogr. 14: 912-920.
36. _, AND W. H. THOMAS. 1969. Comparison of half saturation constants for growth and nitrate uptake of marine phytoplankton. J. Phycol. 5: 375-379.
37. FALKOWSKI, P. G. 1975. Nitrate uptake in marine phytoplankton: Comparison of half-saturation constants from seven species. Limnol. Oceanogr. 20: 412-417.
38. FIEDLER, R., AND G. PROKSCH. 1975. The determination of nitrogen-15 by emission and mass spectrometry in biochemical analysis: A review. Anal. Chim. Acta 78: 1-62.
39. GALLEGOS, C. L., AND T. PLATT. 1981. Photosynthesis measurements on natural populations of phytoplankton: Numerical analysis. In T. Platt [ed.], Physiological bases of phytoplankton ecology. Can. Bull. Fish. Aquat. Sci. 210: 103-111.
40. GAO, Y., G. J. SMITH, AND R. S. ALBERTE. 1993. Nitrate reductase from the marine diatom Skeletonema costatum. Biochemical and immunological characterization. Plant. Physiol. 103: 1437-1445.
41. _, _, AND _. 1997. Temperature dependence of nitrate reductase (NR) activity in marine phytoplankton: Ecological implications. ASLO Annual Meeting Abstracts.
42. GARSIDE, C., AND H. E. GLOVER. 1991. Chemiluminescent measurements of nitrate kinetics: I. Thalassiosira pseudonana (clone 3H) and neritic assemblages. J. Plankton Res. (suppl.) 13: 5-19.
43. GEIDER, R. J. 1987. Light and temperature dependence of the carbon to chlorophyll a ratio in microalgae, and cyanobacteria: Implications for physiology and growth of phytoplankton. New Phytol. 106: 1-34.
44. _, H. L. MACINTYRE, AND T. M. KANA. 1996. A dynamic model of photoadaptation in phytoplankton. Limnol. Oceanogr. 41: 1-15.
45. GLIBERT, P. M., D. J. CONLEY, T. R. FISHER, L. W. HARDING, AND T. C. MALONE. 1995. Dynamics of the 1990 winter/spring bloom in Chesapeake Bay. Mar. Ecol. Prog. Ser. 122: 22-43.
46. _, M. R. DENNETT, AND J. C. GOLDMAN. 1985. Inorganic carbon uptake by phytoplankton in Vineyard Sound, Massachusetts. I. Measurements of the photosynthesis-irradiance responses of winter and early spring assemblages. J. Exp. Mar. Biol. Ecol. 86: 21-36.
47. _, C. GARSIDE, J. A. FUHRMAN, AND M. R. ROMAN. 1991. Time-dependent coupling of inorganic and organic nitrogen uptake and regeneration in the plume of the Chesapeake Bay estuary and its regulation by large heterotrophs. Limnol. Oceanogr. 36: 895-909.
48. _, AND J. C. GOLDMAN. 1981. Rapid ammonium uptake by marine phytoplankton. Mar. Biol. Lett. 2: 25-31.
49. _, _, AND E. J. CARPENTER. 1982a. Seasonal variations in the utilization of ammonium and nitrate by phytoplankton in Vineyard Sound, Massachusetts, USA. Mar. Biol. 70: 237-49.
50. _, F. LISCHULTZ, J. J. MCCARTHY, AND M. A. ALTABET. 19826. Isotope dilution models of uptake and remineralization of ammonium by marine plankton. Limnol. Oceanogr. 27: 639-650.
51. GOLDMAN, J. C. 1977. Temperature effects on phytoplankton growth in continuous culture. Limnol. Oceanogr. 22: 932-936.
52. _, AND P. M. GLIBERT. 1982. Comparative rapid ammonium uptake by four species of marine phytoplankton. Limnol. Oceanogr. 27: 814-827.
53. _, AND R. MANN. 1980. Temperature-influenced variations in speciation and chemical composition of marine phytoplankton in outdoor mass cultures. J. Exp. Mar. Biol. Ecol. 46: 29-39.
54. HARRISON, W. G., L. R. HARRIS, AND B. D. IRWIN. 1996. The kinetics of nitrogen utilization in the oceanic mixed layer: Nitrate and ammonium interactions are nanomolar concentrations. Limnol. Oceanogr. 41: 16-32.
55. HEBER, U. 1974. Metabolite exchange between chloroplasts and cytoplasm. Annu. Rev. Plant Physiol. 25: 393-421.
56. HELLEBUST, J. A. 1965. Excretion of some organic compounds by marine phytoplankton. Limnol. Oceanogr. 10: 192-206.
57. HORRIGAN, S. G., AND J. J. MCCARTHY. 1981. Urea uptake by phytoplankton at various stages of nutrient depletion. J. Plankton Res. 3: 403-414.
58. _, AND _. 1982. Phytoplankton uptake of ammonium and urea during growth on oxidized forms of nitrogen. J. Plankton Res. 4: 379-402.
59. JONES, M. N. 1984. Nitrate reduction by shaking with cadmium: Alternative to cadmium columns. Water Res. 18: 643-646.
60. JØRGENSON, E. G. 1968. The adaptation of plankton algae. II. Aspects of the temperature adaptation of Skeletonema costatum. Physiol. Plant. 21: 423-427.
61. KANDA, J., T. SAINO, AND A. HATTORI. 1985. Nitrogen uptake by natural populations of phytoplankton and primary production in the Pacific Ocean: Regional variability of uptake capacity. Limnol. Oceanogr. 30: 987-999.
62. KARENTZ, D., AND T. A. SMAYDA. 1984. Temperature and seasonal occurrence patterns of 30 dominant phytoplankton species in Narragansett Bay over a 22-year period (1959-1980). Mar. Ecol. Prog. Ser. 18: 277-293.
63. KIRK, J. T. O. 1983. Light and photosynthesis in aquatic environments. Cambridge Univ. Press.
64. KOIKE, I., O. HOLM-HANSEN, AND D. C. BIGGS. 1986. Inorganic nitrogen metabolism by Antarctic phytoplankton with special reference to ammonium cycling. Mar. Ecol. Prog. Ser. 30: 105-116.
65. KRISTIANSEN, S. 1983. The temperature optimum of the nitrate reductase assay for marine phytoplankton. Limnol. Oceanogr. 28: 776-780.
66. LE BOUTEILLER, A. 1986. Environmental control of nitrate and ammonium uptake by phytoplankton in the Equatorial Atlantic Ocean. Mar. Ecol. Prog. Ser. 30: 167-179.
67. LI, W. K. W., AND T. PLATT. 1982. Distribution of carbon among photosynthetic end products in phytoplankton of the Eastern Canadian Arctic. J. Phycol. 18: 466-471.
68. _, J. C. SMITH, AND T. PLATT. 1984. Temperature response of photosynthetic capacity and carboxylase activity in Arctic marine phytoplankton. Mar. Ecol. Prog. Ser. 17: 237-243.
69. LILLO, C. 1994. Light regulation of nitrate reductase in green leaves of higher plants. Physiol. Plant. 90: 616-620.
70. LLAMA, M. J., J. M. MACARULLA, AND J. L. SERRA. 1979. Characterization of the nitrite reductase activity in the diatom Skeletonema costatum. Plant Sci. Lett. 14: 169-175.
71. LOMAS, M. W., P. M. GLIBERT, G. M. BERG, AND M. BURFORD. 1996. Characterization of nitrogen uptake by natural populations of Aureococcus anophagefferens (Chrysophyceae) as a function of incubation duration, substrate concentration, light and temperature. J. Phycol. 32: 907-916.
72. LOPPES, R. N., S. W. DEVOS, P. BARTHELEMY, AND R. F. MATAGNE. 1996. Effect of temperature on two enzymes from a psychrophilic Chloromonas (Chlorophyta). J. Phycol. 32: 276-278.
73. MACINTYRE, H. L., R. J. GEIDER, AND R. M. MCKAY. 1996. Photosynthesis and regulation of rubisco activity in net phytoplankton from Delaware Bay. J. Phycol. 32: 718-731.
74. MACISAAC, J. J., AND R. C. DUGDALE. 1972. Interactions of light and inorganic nitrogen in controlling nitrogen uptake in the sea. Deep-Sea Res. 19: 209-232.
75. MAESTRINI, S. Y., J. M. ROBERT, J. W. LEFTLEY, AND Y. COLLOS. 1986. Ammonium thresholds for simultaneous uptake of ammonium and nitrate by oyster pond algae. J. Exp. Mar. Biol. Ecol. 102: 75-98.
76. _, _, AND I. TRUQUET. 1982. Simultaneous uptake of ammonium and nitrate by oyster pond algae. Mar. Biol. Lett. 3: 143-153.
77. MALONE, T. C. 1980. Algal size, p. 433-463. In I. Morris [ed.], The physiological ecology of phytoplankton. Blackwell.
78. _, AND M. B. CHERVIN. 1979. The production and fate of phytoplankton size fractions in the plume of the Hudson River, New York Bight. Limnol. Oceanogr. 24: 683-696.
79. _, L. H. CROCKER, S. E. PIKE, AND B. W. WENDLER. 1988. Influences of river flow on the dynamics of phytoplankton production in a partially stratified estuary. Mar. Ecol. Prog. Ser. 48: 235-249.
80. MARGALEF, R. 1978. Life-forms of phytoplankton as survival alternatives in an unstable environment. Oceanol. Acta 1: 493-509.
81. MAXWELL, D. P., S. FALK, AND N. P. A. HUNER. 1995. Photosystem II excitation pressure and development of resistance to photoinhibition. Plant Physiol. 107: 687-694.
82. _, _, C. G. TRICK, AND N. P. A. HUNER. 1994. Growth at low-temperature mimics high-light acclimation in Chlorella vulgaris. Plant Physiol. 105: 535-543.
83. MCALLISTER, C. D., T. R. PARSONS, K. STEPHENS, AND J. D. H. STRICKLAND. 1961. Measurements of primary production in coastal sea water using large volume plastic sphere. Limnol. Oceanogr. 6: 237-258.
84. MCCARTHY, J. J. 1970. A urease method for urea in seawater. Limnol. Oceanogr. 15: 309-313.
85. _. 1981. Kinetics of nutrient utilization. In T. Platt [ed.], Physiological phytoplankton ecology. Can. Bull. Fish. Aquat. Sci. 210: 211-233.
86. _, C. GARSIDE, AND J. L. NEVINS. 1996. New production along 140°W in the equatorial Pacific during and following the 1992 El Niño event. Deep-Sea Res. II 43: 1065-1093.
87. _, AND J. C. GOLDMAN. 1979. Nitrogenous nutrition of marine phytoplankton in nutrient depleted waters. Science 280: 670-672.
88. _, AND J. L. NEVINS. 1986. Sources of nitrogen for primary production in warm-core rings 79-E and 81-D. Limnol. Oceanogr. 31: 690-700.
89. _, W. R. TAYLOR, AND J. L. TAFT. 1977. Nitrogenous nutrition of the plankton in the Chesapeake Bay. I. Nutrient availability and phytoplankton preferences. Limnol. Oceanogr. 22: 996-1011.
90. METZLER, P. M., P. M. GLIBERT, S. A. GAETA, AND J. M. LUDLAM. 1997. New and regenerated production in the South Atlantic off Brazil. Deep-Sea Res. 44: 363-384.
91. NALEWAJKO, C. 1977. Extracellular release in freshwater algae and bacteria: Extracellular products of algae as a source for heterotrophs, p. 599-629. In J. Cairns [ed.], Aquatic microbial communities. Garland.
92. _, AND C. GARSIDE. 1983. Methodogical problems in the simultaneous assessment of photosynthesis and nutrient uptake in phytoplankton as functions of light intensity and cell size. Limnol. Oceanogr. 28: 591-597.
93. NEALE, P. J., J. J. CULLEN, M. P. LESSER, AND A. MELIS. 1993. Physiological bases for detecting and predicting photoinhibition of aquatic photosynthesis by PAR and UV radiation. In H. Y. Yamamoto and C. M. Smith [eds.], Photosynthetic responses to the environment. Am. Soc. Plant. Physiol. 33: 61-77.
94. NEAME, K. D., AND T. G. RICHARDS. 1972. Elementary kinetics of membrane carrier transport. Wiley.
95. NEWELL, B. S., G. DALPONT, AND B. R. GRANT. 1972. The excretion of organic nitrogen by marine algae in batch and continuous culture. Can. J. Bot. 50: 2605-2611.
96. OLAIZOLA, M., J. LAROCHE, Z. KOLBER, AND P. G. FALKOWSKI. 1994. Non-photochemical fluorescence quenching and the diadinoxanthin cycle in a marine diatom. Photosynth. Res. 41: 357-370.
97. _, AND H. Y. YAMAMOTO. 1994. Short-term response of the diadinoxanthin cycle and fluorescence yield to high irradiance in Chaetoceros muelleri (Bacillariophyceae). J. Phycol. 30: 606-612.
98. OLSON, R. J., J. B. SOOHOO, AND D. A. KIEFER. 1980. Steady state growth of the marine diatom Thalassiosira pseudonana. Uncoupled kinetics of nitrate uptake and nitrite production. Plant. Physiol. 66: 383-389.
99. PACKARD, T. T. 1979. Half saturation constants for nitrate reductase and nitrate translocation in marine phytoplankton. Deep-Sea Res. 26A: 321-326.
100. _, D. BLASCO, J. J. MACISAAC, AND R. C. DUGDALE. 1971. Variations of nitrate reductase activity in marine phytoplankton. Invest. Pesq. 35: 209-219.
101. PARSONS, T. R., Y. MAITA, AND C. M. LALLI. 1984. A manual of chemical and biological methods for seawater analysis. Pergamon.
102. PENNOCK, J. R. 1985. Chlorophyll distributions in the Delaware Estuary: Regulation by light limitation. Estuarine Coastal Shelf Sci. 21: 711-725.
103. PRICE, N. M., W. P. COCHLAN, AND P. J. HARRISON. 1985. Time course of uptake of inorganic and organic nitrogen by phytoplankton in the Strait of Georgia: Comparison of frontal and stratified communities. Mar. Ecol. Prog. Ser. 27: 39-53.
104. PROBYN, T. A. 1985. Nitrogen uptake by size fractionated phytoplankton populations in the Southern Benquela upwelling system. Mar. Ecol. Prog. Ser. 22: 249-258.
105. _, AND S. J. PAINTING. 1985. Nitrogen uptake by size fractionated phytoplankton populations in Antarctic surface waters. Limnol. Oceanogr. 30: 1327-1332.
106. _, H. N. WALDRON, AND A. G. JAMES. 1990. Size-fractionated measurements of nitrogen uptake in aged upwelled waters: Implications for pelagic food webs. Limnol. Oceanogr. 35: 202-210.
107. 15N tracer procedures. Mar. Ecol. Prog. Ser. 153: 99-111.
108. RAIMBAULT, P., AND V. GENTILHOMME. 1990. Short-and long-term responses of the marine diatom Phaeodactylum tricornutum to spike additions of nitrate at nanomolar levels. J. Exp. Mar. Biol. Ecol. 135: 161-176.
109. _, AND M. MINGAZZINI. 1987. Diurnal variations of intracellular nitrate storage by marine diatoms: Effects of nutritional state. J. Exp. Mar. Biol. Ecol. 112: 217-232.
110. RAVEN, J. A., AND R. J. GEIDER. 1988. Temperature and algal growth. New Phytol. 110: 441-461.
111. RHEE, G-Y., AND J. J. GOTHAM. 1981. The effect of environmental factors on phytoplankton growth: Temperature and the interactions of temperature with nutrient limitation. Limnol. Oceanogr. 26: 635-648.
112. SCHELL, D. M. 1974. Uptake and regeneration of free amino acids in marine waters of Southeast Alaska. Limnol. Oceanogr. 19: 260-270.
113. SCHEPPE, K-D. 1997. Light dependent respiration in estuarine phytoplankton. M.S. thesis, Univ. of Maryland.
114. SERRA, J. L., M. J. LLAMA, AND E. CADENAS. 1978. Characterization of the nitrate reductase enzyme activity in the diatom Skeletonema costatum. Plant Sci. Lett. 13: 41-48.
115. SHARP, J. H. 1983. The distributions of inorganic nitrogen and dissolved and particulate organic nitrogen in the sea, p. 1-35. In E. J. Carpenter and D. G. Capone [eds.], Nitrogen in the marine environment. Academic.
116. _. 1984. Inputs into microbial food chains, p. 101-120. In J. E. Hobbie and P. J. Leb. Williams [eds.], Heterotrophic activity in the sea. Plenum Press.
117. _, C. H. CULBERTSON, AND T. M. CHURCH. 1982. The chemistry of the Delaware estuary general considerations. Limnol. Oceanogr. 27: 1015-1028.
118. 15N uptake by phytoplankton in the Antarctic upwelling area: Results from the Antiprod I cruise in the Indian Ocean sector. Aust. J. Mar. Freshwater Res. 30: 431-438.
119. SMARELLI, J., AND W. H. CAMPBELL. 1980. Activation of Thalassiosira pseudonana NADH: nitrate reductase. Phytochemistry 19: 1601-1605.
120. SMITH, E. M., AND W. M. KEMP. 1995. Seasonal and regional variations in plankton community production and respiration for Chesapeake Bay. Mar. Ecol. Prog. Ser. 116: 217-231.
121. SMITH, J. C., AND T. PLATT. 1985. Temperature responses of ribulose bisphosphate carboxylase and photosynthetic capacity in Arctic and tropical phytoplankton. Mar. Ecol. Prog. Ser. 25: 31-37.
122. SMITH, W. O., JR. 1991. Nutrient distributions and new production in polar regions: Parallels and contrasts between the Arctic and Antarctic. Mar. Chem. 35: 245-257.
123. _, AND W. G. HARRISON. 1991. New production in polar regions: The role of environmental variables. Deep-Sea Res. 38: 1463-1479.
124. STOLTE, W., T. MCCOLLIN, A. A. M. NOORDELOOS, AND R. RIEGMAN. 1994. Effect of nitrogen source on the size distribution within marine phytoplankton populations. J. Exp. Mar. Biol. Ecol. 184: 93-97.
125. _, AND R. RIEGMAN. 1996. A model approach for size-selective competition of marine phytoplankton for fluctuating nitrate and ammonium. J. Phycol. 32: 732-740.
126. STRICKLAND, J. D. H., O. HOLM-HANSEN, R. W. EPPLEY, AND R. J. LINN. 1969. The use of a deep tank in plankton ecology. I. Studies of the growth and composition of phytoplankton crops at low nutrient levels. Limnol. Oceanogr. 4: 23-34.
127. TESTER, P. A., M. E. GEESEY, C. GUO, H. W. PEARL, AND D. F. MILLIE. 1995. Evaluating phytoplankton dynamics in the Newport River Estuary (North Carolina, USA) by HPLC-derived pigment profiles. Mar. Ecol. Prog. Ser. 124: 237-245.
128. THOMPSON, P. A., M. GUO, AND P. J. HARRISON. 1992. Effects of variation in temperature. 1. On the biochemical composition of eight species of marine phytoplankton. J. Phycol. 28: 481-488.
129. TILZER, M. M., M. ELBRDCHTER, W. W. GIESKES, AND B. BEESE. 1986. Light-temperature interactions in the control of photosynthesis in Antarctic phytoplankton. Polar Biol. 5: 105-112.
130. TING, C. A., AND T. G. OWENS. 1993. Photochemical and nonphotochemical fluorescence quenching processes in the diatom Phaeodactylurn tricornutum. Plant Physiol. 101: 1323-1330.
131. TURPIN, D. H., AND P. J. HARRISON. 1979. Limiting nutrient patchiness and its role in phytoplankton ecology. J. Exp. Mar. Biol. Ecol. 39: 151-166.
132. VAN HEUKELEM, L., A. J. LEWITUS, T. M. KANA, AND N. E. CRAFT. 1994. Improved separations of phytoplankton pigments using temperature-controlled high performance liquid chromatography. Mar. Ecol. Prog. Ser. 114: 303-313.
133. WARD, B. B., M. C. TALBOT, AND M. J. PERRY. 1984. Contributions of phytoplankton and nitrifying bacteria to ammonium and nitrite dynamics in coastal waters. Cont. Shelf Res. 3: 383-398.
134. WATT, D. A., A. M. ARMORY, AND C. F. CRESSWELL. 1992. Effect of nitrogen supply on the kinetics and regulation of nitrate assimilation in Chlamydomonas reinhardtii Dangeard. J. Exp. Bot. 43: 605-615.
135. WILLEMOES, M., AND E. MONAS. 1991. Relationship between growth irradiance and the xanthophyll cycle pool in the diatom Nitzschia palea. Physiol. Plant. 83: 449-456.
136. WOOD, A. M., H. RAI, J. GARNIER, T. KAIRESALO, S. GRESENS, E. ORIVE, AND B. RAVAIL. 1992. Practical approaches to algal excretion. Mar. Microb. Food Webs 6: 21-38.
137. YENTSCH, C. S., AND R. F. VACCARO. 1958. Phytoplankton nitrogen in the oceans. Limnol. Oceanogr. 3: 443-448.