Soil response to chemicals used in a field experiment

Jezierska-Tys, S.; Rutkowska, Agata

doi:10.2478/v10247-012-0080-0

Cited by 9 publications

(5 citation statements)

References 19 publications

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“…Therefore, the use of pesticides requires an understanding of their effects on soil-dwelling microorganisms and the potential consequences of their inappropriate application. The application of high doses of pesticides in microbiological experiments allows for the identification of microbial strains with a high degradation potential and those useful for the bioremediation of soils contaminated with these substances (Chen et al 2011 ; Jezierska-Tys and Rutkowska 2013 ). In this study, four bacterial strains of Bacillus spp.…”

Section: Resultsmentioning

confidence: 99%

Microbial and enzymatic activity of soil contaminated with azoxystrobin

Baćmaga

Kucharski

Wyszkowska

2015

Environ Monit Assess

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The use of fungicides in crop protection still effectively eliminates fungal pathogens of plants. However, fungicides may dissipate to various elements of the environment and cause irreversible changes. Considering this problem, the aim of the presented study was to evaluate changes in soil biological activity in response to contamination with azoxystrobin. The study was carried out in the laboratory on samples of sandy loam with a pH of 7.0 in 1 Mol KCl dm . Soil samples were treated with azoxystrobin in one of four doses: 0.075 (dose recommended by the manufacturer), 2.250, 11.25 and 22.50 mg kg −1 soil DM (dry matter of soil). The control soil sample did not contain fungicide. Bacteria were identified based on 16S rRNA gene sequencing, and fungi were identified by internal transcribed spacer (ITS) region sequencing. The study revealed that increased doses of azoxystrobin inhibited the growth of organotrophic bacteria, actinomycetes and fungi. The fungicide also caused changes in microbial biodiversity. The lowest values of the colony development (CD) index were recorded for fungi and the ecophysiological (EP) index for organotrophic bacteria. Azoxystrobin had an inhibitory effect on the activity of dehydrogenases, catalase, urease, acid phosphatase and alkaline phosphatase. Dehydrogenases were found to be most resistant to the effects of the fungicide, while alkaline phosphatase in the soil recovered the balance in the shortest time. Four species of bacteria from the genus Bacillus and two species of fungi from the genus Aphanoascus were isolated from the soil contaminated with the highest dose of azoxystrobin (22.50 mg kg −1).

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Section: Resultsmentioning

confidence: 99%

Microbial and enzymatic activity of soil contaminated with azoxystrobin

Baćmaga

Kucharski

Wyszkowska

2015

Environ Monit Assess

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“…The excessive use of fungicides exerts risky influences on plants (during different growth stages) that cannot be eliminated directly [186,187]. The Falcon 460 EC fungicide showed adverse effects on root elongation and seed germination of some plant species, Sorgo Saccharum, Lepidium sativum, and Sinapsis alba.…”

Section: Effect Of Pesticides Toxicity On Plantsmentioning

confidence: 99%

Heavy Metals and Pesticides Toxicity in Agricultural Soil and Plants: Ecological Risks and Human Health Implications

Alengebawy

Abdelkhalek

Qureshi

et al. 2021

Toxics

1,148

352

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Environmental problems have always received immense attention from scientists. Toxicants pollution is a critical environmental concern that has posed serious threats to human health and agricultural production. Heavy metals and pesticides are top of the list of environmental toxicants endangering nature. This review focuses on the toxic effect of heavy metals (cadmium (Cd), lead (Pb), copper (Cu), and zinc (Zn)) and pesticides (insecticides, herbicides, and fungicides) adversely influencing the agricultural ecosystem (plant and soil) and human health. Furthermore, heavy metals accumulation and pesticide residues in soils and plants have been discussed in detail. In addition, the characteristics of contaminated soil and plant physiological parameters have been reviewed. Moreover, human diseases caused by exposure to heavy metals and pesticides were also reported. The bioaccumulation, mechanism of action, and transmission pathways of both heavy metals and pesticides are emphasized. In addition, the bioavailability in soil and plant uptake of these contaminants has also been considered. Meanwhile, the synergistic and antagonistic interactions between heavy metals and pesticides and their combined toxic effects have been discussed. Previous relevant studies are included to cover all aspects of this review. The information in this review provides deep insights into the understanding of environmental toxicants and their hazardous effects.

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“…Despite the environmental risks associated with fungicide use, those chemicals continue to offer effective protection for crops, and they cannot be entirely eliminated. For this reason, the impact of fungicides on non-target organisms and the risks resulting from exposure to fungicides have to be thoroughly investigated (Chen et al 2011 ; Jezierska-Tys and Rutkowska 2013 ). Soil microorganisms and enzymes can be used to model the harmful influence of pesticides on soil ecosystems.…”

Section: Introductionmentioning

confidence: 99%

The effect of the Falcon 460 EC fungicide on soil microbial communities, enzyme activities and plant growth

Baćmaga

Kucharski

2016

Ecotoxicology

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Fungicides are considered to be effective crop protection chemicals in modern agriculture. However, they can also exert toxic effects on non-target organisms, including soil-dwelling microbes. Therefore, the environmental fate of fungicides has to be closely monitored. The aim of this study was to evaluate the influence of the Falcon 460 EC fungicide on microbial diversity, enzyme activity and resistance, and plant growth. Samples of sandy loam with pH KCl 7.0 were collected for laboratory analyses on experimental days 30, 60 and 90. Falcon 460 EC was applied to soil in the following doses: control (soil without the fungicide), dose recommended by the manufacturer, 30-fold higher than the recommended dose, 150-fold higher than the recommended dose and 300-fold higher than the recommended dose. The observed differences in the values of the colony development index and the eco-physiological index indicate that the mixture of spiroxamine, tebuconazole and triadimenol modified the biological diversity of the analyzed groups of soil microorganisms. Bacteria of the genus Bacillus and fungi of the genera Penicillium and Rhizopus were isolated from fungicide-contaminated soil. The tested fungicide inhibited the activity of dehydrogenases, catalase, urease, acid phosphatase and alkaline phosphatase. The greatest changes were induced by the highest fungicide dose 300-fold higher than the recommended dose. Dehydrogenases were most resistant to soil contamination. The Phytotoxkit test revealed that the analyzed fungicide inhibits seed germination capacity and root elongation. The results of this study indicate that excessive doses of the Falcon 460 EC fungicide 30-fold higher than the recommended dose to 300-fold higher than the recommended dose) can induce changes in the biological activity of soil. The analyzed microbiological and biochemical parameters are reliable indicators of the fungicide's toxic effects on soil quality.

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Soil response to chemicals used in a field experiment

Cited by 9 publications

References 19 publications

Microbial and enzymatic activity of soil contaminated with azoxystrobin

Microbial and enzymatic activity of soil contaminated with azoxystrobin

Heavy Metals and Pesticides Toxicity in Agricultural Soil and Plants: Ecological Risks and Human Health Implications

The effect of the Falcon 460 EC fungicide on soil microbial communities, enzyme activities and plant growth

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