Combined effect of low-molecular-weight organic acids and creosote on phosphatase activities in sandy soil
| Autor: | Barbara Pawłowska, Maciej Płatkowski, Arkadiusz Telesiński, Kornel Curyło, Krystyna Cybulska, Teresa Krzyśko-Łupicka |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
sandy loam
Oxalic acid Phosphatase Soil Science 010501 environmental sciences 01 natural sciences oxalic acid law.invention chemistry.chemical_compound law creosote phosphatases 0105 earth and related environmental sciences Earth-Surface Processes Total organic carbon Ecology 04 agricultural and veterinary sciences citric acid Soil contamination Creosote chemistry tartaric acid Loam Environmental chemistry 040103 agronomy & agriculture Tartaric acid 0401 agriculture forestry and fisheries Citric acid |
| Zdroj: | Polish Journal of Soil Science. 50(2):177-187 |
| ISSN: | 0079-2985 |
| Popis: | This paper assesses the impact of creosote and low-molecular-weight organic acids (LMWOAs) on the activity of acid phosphomonoesterase, alkaline phosphomonoesterase, phosphotriesterase, and inorganic pyrophosphatase in soil. The experiment was carried out on loamy sand samples with organic carbon content of 8.71 g · kg -1 , with the following variable factors: dosages of creosote: 0, 0.5%, and 2.5%; type of LMWOAs: oxalic acid, tartaric acid, and citric acid in the amount of 50 mmol · kg -1 of soil; days of experiment: 1, 7, 14, 28, 56, 112. Obtained results showed that contamination with creosote caused decrease in the activity of soil phosphatases. The observed effect did not always increase with increase in the dosage of the pollutant. Among the assayed phosphatases, the biggest changes were noted in the activity of phosphomonoesterases. Application of LMWOAs to contaminated soil mainly effected the inhibition of phosphatase, especially the activity of acid phosphomonoesterase. Comparison of the effects of LMWOAs showed that the citric acid was the least toxic to soil phosphatases. |
| Databáze: | OpenAIRE |
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