Endosulfan has no adverse effect on soil respiration

Joseph, Ricardo; Reed, Sandra M.; Jayachandran, Krish; Clark-Cuadrado, Cristina; Dunn, C.L.

doi:10.1016/j.agee.2010.04.017

Cited by 11 publications

(5 citation statements)

References 27 publications

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“…Whereas, the highest endosulfan treatment rate (8FR) caused significant reduction in fungal population of the soil samples. The negative impact of endosulfan pesticide on the population of bacteria and fungi at higher application rate was in agreement with the findings of Joseph et al [13] and Dey et al [14] who reported that endosulfan pesticide applied to the soil samples at recommended field rate caused a slight but non-significant short inhibitory effect on bacterial and fungal populations in the soil; while significant reduction in bacterial and fungal population was only observed in the soil samples treated with higher doses of endosulfan. Adebayo et al [15] studied the effect of endosulfan insecticide (Karate ® and Thiodan © ) on the population dynamics of four different soil microorganisms and only observed a marked decrease in bacterial population of the soil samples treated with concentration above the recommended rate; whereas, the fungal population was significantly affected at the field application rate and two times the field application rate.…”

Section: Discussionsupporting

confidence: 92%

Effects of an Organochlorine and Pyrethroid Pesticide Formulation on Soil’s Culturable Microbial Population

Aborisade¹,

Atuanya²

2020

IJTRS

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Non-target effect of pesticide on soil organisms is an important area of ecotoxicology, due to their roles in ecosystem sustainability. Thus, the effects of an organochlorine (endosulfan) and a synthetic pyrethroid (cypermethrin) pesticide formulation on soils' culturable microbial population were investigated. The study was carried out on loamy sand soil sample types collected from Ondo State, Forest Reserve, Owena, Nigeria. Pesticide application rates in the range of half of the normal field rate (0.5FR), the normal field rate (FR), two times the normal field rate (2FR), four times the normal field rate (4FR) and eight times the normal field rate (8FR) were applied to the soil microcosm design in the laboratory; while the untreated soil serve as control. The experiment set up was completely randomized in three replicates and soil samples were collected from each of the set up at 5 days interval over 35 days period of exposure for analysis. The pour plate technique was used for the enumeration of bacterial and fungal colonies on nutrient agar and potato dextrose agar respectively. The results indicated that both pesticides had effects on the population of bacterial and fungal counts of the soil samples with significant (p < 0.05) adverse effect observed at the treatment rate above the normal field application rate. At lower application rates (0.5FR, FR and 2FR), temporary inhibitory effect on bacterial and fungal population were observed. The progressive increase in inhibitory effect with corresponding increase in concentration of endosulfan and cypermethrin were noticed.

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Section: Discussionsupporting

confidence: 92%

Effects of an Organochlorine and Pyrethroid Pesticide Formulation on Soil’s Culturable Microbial Population

Aborisade¹,

Atuanya²

2020

IJTRS

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“…were also detected with the highest pesticide concentration applied. This behavior was also observed in other studies with endosulfan (Adebayo et al 2007, Joseph et al 2010 and it was attributed to a mycota adaptation to the pesticide.…”

Section: Discussionsupporting

confidence: 84%

Native mycota in agricultural soils exposed to pesticides and Aspergillus oryzae tolerance to chlorpyrifos in microcosms assays

Carranza¹

2017

CREAM

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Magnoli CE -Native mycota in agricultural soils exposed to pesticides and Aspergillus oryzae tolerance to chlorpyrifos in microcosms assays. Current Research in Environmental & Applied Mycology 7(3), 236-248, Doi 10.5943/cream/7/3/10 AbstractChlorpyrifos (CPF) constitutes a class of older and riskier pesticides, with more than 50 years of use. After pesticide application, a low percentage reaches the target and the rest remain in the environment. Due to this, bioremediation strategies are being increasingly studied. The aims of the present study were to determine the competitiveness and the permanence of a non-toxigenic, CPFdegrading A. oryzae (AM 1) strain in agricultural soil microcosms. These microcosms were contaminated with commercial formulation of CPF (10, 20 and 50 mM) and conditioned at two water holding capacity (70 and 30 WHC). In addition, Aspergillus section Flavi counts of soils of three localities of southern Córdoba Province were evaluated, due to these soils were used to prepare the microcosms. In the microcosm's assays, together with the native mycota, A. oryzae was isolated from all the treatments and conditions assayed. Thus this strain was able to tolerate the different doses of CPF tested. Regarding the native mycota, Aspergillus sp., Trichoderma sp., Penicillium sp., Cladosporium sp. and Fusarium sp. were the most frequent genera isolated from the microcosms. The CPF treatments influenced in different ways the counts of the most frequent genera isolated. This study allowed knowing the in situ survival, under optimal and not optimal humidity conditions, of a CPF-degrading fungal strain in presence of the native mycota. These results are very important because the permanence in the environment of a potentially bioremediation agent is one of the main characteristic that must be evaluated.

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“…With the application of endosulfan, an increase in microbial biomass carbon is observed (Kalyani et al 2010). This result may be the consequence of bacterial biomass increase despite fungal biomass may be reduced (Joseph et al 2010;Xie et al 2011). Moreover, whatever the impact of endosulfan on the equilibrium of microbial population, many authors reported the ability of telluric bacteria or fungi to degrade this insecticide which could induce an increase in microbial biomass and/or an activation of enzymatic production (Bhalerao and Puranik 2007;Kataoka et al 2010Kataoka et al , 2011Castillo et al 2011;Yu et al 2012).…”

Section: Relationships Between Pesticide Mechanisms Of Action and Enz...mentioning

confidence: 99%

Effects of pesticides on soil enzymes: a review

Riah¹,

Laval²,

Laroche-Ajzenberg³

et al. 2014

Environ Chem Lett

209

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The use of pesticides in agriculture has highly increased during the last 40 years to increase crop yields. However, today most pesticides are polluting water, soil, atmosphere and food.Pesticides are also impact soil enzymes, which are essential catalysts ruling the quality of soil life. In particular, the activity of soil enzymes control nutrient cycles, and, in turn, fertilization.Here, we review the effects of pesticides on the activity of soil enzymes in terrestrial ecosystems. Enzymes include dehydrogenase, fluorescein diacetate hydrolase, acid phosphatase, alkaline phosphatase, phosphatase, -glucosidase, cellulase, urease and arylsulfatase. Those enzymes are involved in the cycles of carbon, nitrogen, sulfur and phosphorus.The main points of our analysis are (1) the common inhibition of dehydrogenase in 61 % of studies, stimulation of cellulase in 56 % of studies and no response of aryl-sulfatase in 67 % of studies. (2) Fungicides have mainly negative effects on enzymatic activities. (3) Insecticides can be classified into two groups, the first group represented by endosulfan having an overall positive impact while the second group having a negative effect. (4) Herbicides can be classified into two groups, one group with few positive effect and another group with negative effect.

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Endosulfan has no adverse effect on soil respiration

Cited by 11 publications

References 27 publications

Effects of an Organochlorine and Pyrethroid Pesticide Formulation on Soil’s Culturable Microbial Population

Effects of an Organochlorine and Pyrethroid Pesticide Formulation on Soil’s Culturable Microbial Population

Native mycota in agricultural soils exposed to pesticides and Aspergillus oryzae tolerance to chlorpyrifos in microcosms assays

Effects of pesticides on soil enzymes: a review

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