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  • 1
    Electronic Resource
    Electronic Resource
    The toxicity of phenolic compounds to soil algal population and toChlorella vulgaris andNostoc linckia (1986)
    Springer
    Plant and soil 96 (1986), S. 197-203 
    Details
    ISSN: 1573-5036
    Keywords: Chlorella vulgaris ; Nostoc linckia ; Phenolic compounds ; Soil algae ; Toxicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary p-Nitrophenol (PNP),m-nitrophenol (MNP), 2,4-dinitrophenol (DNP) and catechol were tested for their effects on algal population in a soil and on pure cultures of two algae isolated from soil. Both PNP and MNP, even at 0.5 kg ha−1 level were toxic to the soil algae; high doses effected increase in toxicity. Inhibition of algae was relatively more with PNP compared to the other two nitrophenols. Catechol treatment up to 1.0 kg ha−1 led to a significant initial enhancement of algae with a subsequent far less toxic effect. The toxicity of the phenolic compounds towardChlorella vulgaris, a green alga andNostoc linckia, a blue-green alga, decreased in the order: MNP≧PNP〉DNP〉Catechol. However, algicidal or algistatic effect of the test chemicals was fairly more againstC. vulgaris, suggesting that the eukaryotic alga is highly sensitive to such soil pollutants compared to the prokaryotic alga.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374764
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of phenolic compounds on growth and metabolic activities of Chlorella vulgaris and Scenedesmus bijugatus isolated from soil (1992)
    Springer
    Plant and soil 140 (1992), S. 25-34 
    Details
    ISSN: 1573-5036
    Keywords: carbohydrates ; Chlorella vulgaris ; chlorophylls 14CO2 uptake ; green algae ; nitrophenols ; phenol ; protein ; Scenedesmus bijugatus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Phenol and three nitrophenols (o-nitrophenol, m-nitrophenol, p-nitrophenol), commonly occurring pollutants in natural eco-systems, were tested for their toxic effects on soil isolates of Chlorella vulgaris and Scenedesmus bijugatus, growing under phototrophic, photoheterotrophic and heterotrophic conditions. The toxicity criteria included cell number, chlorophyll, total protein and carbohydrate content, 14CO2 uptake and in vivo nitrate reductase activity. Both C. vulgaris and S. bijugatus were sensitive to the pollutants when the cultures were grown under phototrophic or heterotrophic conditions. However, the toxicity was found reversed or alleviated upon photoheterotrophic growth of the cultures. Transmission electron microscope studies revealed various cytological abnormalities in C. vulgaris in the presence of phenolics at algistatic levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00012803
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    Paper (German National Licenses)
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