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  • 1985-1989  (2)
  • Accelerated biodegradation  (1)
  • Parathion  (1)
  • Yeast extract  (1)
  • Rice variety
Datenquelle
Materialart
Erscheinungszeitraum
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Persistence and biodegradation of selected organophosphorus insecticides in flooded versus non-flooded soils (1987)
    Springer
    Biology and fertility of soils 5 (1987), S. 36-40 
    Details
    ISSN: 1432-0789
    Schlagwort(e): Parathion ; Methyl parathion ; Fenitrothion ; Flooded and non-flooded soils ; Persistence ; Repeated additions ; Accelerated biodegradation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Geologie und Paläontologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary The persistence of parathion, methyl parathion and fenitrothion in five tropical soils of varying physicochemical characteristics was compared under flooded and non-flooded conditions. The degradation of all the three insecticides was more rapid under flooded conditions than under non-flooded conditions in four out of five soils. Degradation of these insecticides proceeded by hydrolysis under non-flooded conditions and essentially by nitro group reduction and to a minor extent by hydrolysis under flooded conditions. Kinetic analysis indicated that degradation of the three insecticides followed a first-order reaction irrespective of the soil and water regime. The degradation of these organophosphorus insecticides was accelerated after repeated applications to flooded alluvial soil. Nitro group reduction was the major pathway of degradation for all the three insecticides after the first addition while the rate of hydrolysis increased after each successive addition.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00264344
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Enhanced degradation of carbofuran byPseudomonas cepacia andNocardia sp. in the presence of growth factors (1985)
    Springer
    Plant and soil 84 (1985), S. 445-449 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Carbofuran ; Degradation ; Nocardia sp. ; Pseudomonas cepacia ; Soil extract ; Yeast extract
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Pseudomonas cepacia and aNocardia sp., isolated from flooded alluvial soil amended with carbofuran, metabolized ring-14C-carbofuran fairly rapidly in mineral salts medium or soil extract, supplemented with yeast extract. When the two isolates were incubated with soil extract together with 500 μg ml−1 yeast extract, about 40 to 62% of the radioactivity was recovered as water-soluble products. The degradation of carbofuran byNocardia sp. led to the formation of coloured, water-soluble and non-extractable metabolites.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02275483
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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