The Effect of Copper, Zinc, Cobalt and Manganese on the Growth of the Marine Diatom Nitzschia closterium

Rosko, John J.; Rachlin, Joseph W.

doi:10.2307/2484731

Cited by 35 publications

(14 citation statements)

References 7 publications

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“…The VCFs of these cells for the IB and IIB transition (Fisher, 1982); estimated Tc ECso for T. pseudonana (Gearing et al, 1975); Co, Mn, and Cu VCFs for natural phytoplankton (Lowman et al, 1971); Co toxicity for the diatom Nitzschia closterium (Rosko and Rachlin, 1975); Mn, Pb, and Cu toxicity for the diatom Asterionella japonica (Fisher and Jones, 1981); Pb VCF data for T. pseudonana (Fisher et al, 1983b). All experimental data derived from media containing no chelators metals thus appear to be lower than those for the transuranic elements (Np excepted), where values of > lo5 are regularly observed (Fisher et al, 19833).…”

Section: Accumulationmentioning

confidence: 99%

Accumulation and toxicity ol Cd, Zn, Ag, and Hg in four marine phytopiankters

Fisher¹,

Teyssié²

1984

Mar. Ecol. Prog. Ser.

128

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Accumulation and toxicity of Cd, Zn, Ag, and Hg were measured in the diatom Thalassiosira pseudonana, the chlorophyte Dunaliella tertiolecta, the coccolithophore Emiliania huxleyi, and the cyanophyte Oscillatoria woronichinii. Bioaccumulation of the metals was measured over a wide (up to lo5) range of metal concentrations, using gamma-emitting radioisotopes of each metal. Metal content of cells was related to total external metal concentration in all cases, in accordance with Freundlich adsorption isotherms. Dead cells accumulated metals comparably to living cells, indicating that the initial association of metal with the cell is governed by adsorption. Volume/volume concentra-

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Section: Accumulationmentioning

confidence: 99%

Accumulation and toxicity ol Cd, Zn, Ag, and Hg in four marine phytopiankters

Fisher¹,

Teyssié²

1984

Mar. Ecol. Prog. Ser.

128

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“…Cadmium was found to exert toxic action on various algae such as ChloreUa (Rosko & Rachlin 1975, Gipps & Coller 1980, Rebhun & Ben-Amotz 1984, Euglena (De Filippis e t al. 1981), diatoms (Rachlin et al 1982(Rachlin et al , 1983, DunalieUa (Jennings & Rainbow 1979), and Monochrysis, Isochrysis, and Phaeodactylum (Wikfors & Ukeles 1982).…”

Section: Introductionmentioning

confidence: 99%

Effect of NaCI concentration on cadmium uptake by the halophilic alga Dunaliella salina

Rebhun¹,

Ben‐Amotz²

1986

Mar. Ecol. Prog. Ser.

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The effect of NaCl concentration on cadmium uptake by DunaLiella salina was investigated. Algae were grown in the presence of 5 mg I-' cadmium at NaCl concentrations varying from 0.5 M to 4 M. The response of cell-specific growth rate, pigment content, and cadmium uptake was studied. Results show maximum cadmium uptake at NaCl concentrations between 0.5 and 1.0 M and considerably lower cadmiuni uptake at NaCl concentrations above 1.0 M. It is suggested that of the Cd species existing under the experimental conditions, the positively charged Cd", CdC1' and possibly the uncharged CdC12(aq) play a major role in cadmium uptake processes.

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“…The new communities reflect not only tolerance or stimulation to the potential abiotic stress but changes in realized niches brought about by the interactions of the species which remained in the community . Although there is considerable evidence to suggest that metalic ions and other forms of stress diminish the growth of individual species and thereby effect species diversity (Cairns, Lanza, and Parker, 1972 ;Ruthven & Cairns, 1973 ;Reimer, 1962 ;Stockner & Anita, 1976 ;Rosko & Rachlin, 1975 ;Braek, Jensen & Mohus, 1976 ;Prouse, Gordon, & Keizer, 1976 ;Jensen, Rystad, & Melsom, 1974 ;Sunda & Ceuillard, 1976) our experimental control was not significantly different from the experimental groups and the greatest species diversity was consistantly found in the community incubated in the presence of Cu (Table 5) . If we knew the ecological consequences of driving the trajectories of the diatom communities toward favoring the abundances of the particular groups of species we have identified through recurrent analysis, we could attach significance to this aspect of our results .…”

Section: Diatom Transplantation Experimentsmentioning

confidence: 87%

The potential effects of energy related activities on the seasonal trajectories of epiphytic marine diatoms

Coccetti

Lee

1979

Hydrobiologia

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Supported by ERDA Contract E (11-1) 3254, Reference Number (COO) 3254-28 . The authors would like to acknowledge Dr . Howard Rubin for his assistance in writing the many computer programs used in this investigation . 2 This paper represents a revised expansion of a thesis project accepted by the CCNY Biology Faculty in partial fulfillment of the requirements of the M .A . degree in September 1976 . Present address : 64 Sagamore Road, Bronxville, NY 10708 . AbstractSeasonal successional trajectories of transplanted and experimental diatom communities were studied during the summer of 1973 . Manipulation of these diatom assemblages was accomplished through the development of an in situ experimental apparatus capable of incubating these organisms without doing violence to the community itself .

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The Effect of Copper, Zinc, Cobalt and Manganese on the Growth of the Marine Diatom Nitzschia closterium

Cited by 35 publications

References 7 publications

Accumulation and toxicity ol Cd, Zn, Ag, and Hg in four marine phytopiankters

Accumulation and toxicity ol Cd, Zn, Ag, and Hg in four marine phytopiankters

Effect of NaCI concentration on cadmium uptake by the halophilic alga Dunaliella salina

The potential effects of energy related activities on the seasonal trajectories of epiphytic marine diatoms

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