Influence of Endosulfan on Microbial Biomass and Soil Enzymatic Activities of a Tropical Alfisol

Kalyani, S. Surya; Sharma, Jitender; Dureja, Prem; Singh, Surender; Lata,

doi:10.1007/s00128-010-9943-x

Cited by 21 publications

(11 citation statements)

References 21 publications

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“…Sukul (2006) also found a decreased arylsulfatase activity after application of metalaxyl to the soil only at the highest application rate. The endosulfan (insecticide) applied at elevated level (100 ppm) increased arylsulfatase activity significantly (Kalyani et al 2010). However, insecticides like carbofuran (Kale and Raghu 1990) and herbicides like 2,4-D showed no marked inhibitory effect on this enzyme (Bécaert et al 2006).…”

Section: Phosphatase Activitymentioning

confidence: 98%

Enzymatic activities and microbial biomass in peanut field soil as affected by the foliar application of tebuconazole

Saha

Pipariya

2016

Environ Earth Sci

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Field experiments in peanut (Arachis hypogaea L.) soil ecosystem were conducted during the summer seasons (February-June) of the year 2013 and 2014 in black clay soil treated with tebuconazole at field rate (FR), 2-times FR (2FR) and 10-times FR (10FR) as foliar spray to determine the impact of tebuconazole on soil microbial properties and enzymatic activities. Tebuconazole application at FR and 2FR resulted in a short-lived and transitory toxic effect on soil microbial properties and enzymatic activities. The duration of this disturbance was slightly longer at 10FR. Incorporation of tebuconazole in soil resulted in stimulating the soil microbial activity as evidenced by increased ammonification and nitrification rates and increased soil microbial biomass at later stage. However, it was more toxic to soil ergosterol which is the indicator of the presence of viable fungi. Soil enzymatic activities like fluorescein diacetate-hydrolyzing activity, urease, phosphatase and aryl sulfatase are either unaffected or shortly inhibited and then recovered. However, dehydrogenase and nitrate reductase activity decreased more drastically and can be used as valuable indicator to assess the impact of tebuconazole application on soil health. The results indicated that instead of single assays, a broad spectrum analysis of soil microbial and enzymatic activities gives a better insight about the impacts of pesticide on soil health. From this study, it is also concluded that the application of tebuconazole at 10FR had adverse effects on the microbial variables and the effect on long-term application should be studied further.

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Section: Phosphatase Activitymentioning

confidence: 98%

Enzymatic activities and microbial biomass in peanut field soil as affected by the foliar application of tebuconazole

Saha

Pipariya

2016

Environ Earth Sci

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“…Paichongding (IPP; 1-((6-chloropydidin-3-yl)methyl)-7-methyl-8-nitro-5-propoxy-1,2,3,5,6,7-hexahydroimidazo[1,2-α-]pyridine), is a novel chiral insecticide recently developed by East China University of Science and Technology in China. − It has two chiral carbon centers, which leads to four stereoisomers (RR-IPP, SS-IPP, RS-IPP, and SR-IPP; Figure ). IPP has excellent toxicity toward a broad spectrum of sucking and biting insects. − Traditional neonicotinoid insecticides are selective agonists of the insect nicotinic acetylcholine receptors (nAChRs); IPP is a novel neonicotinoid as it is the antagonist of nAChRs of insects. − In addition, IPP activity is about 40–50 times higher than that of imidacloprid against imidacloprid-resistant insects. − A 10% IPP suspension concentration has been permitted to be used in China. ,, The wide application of IPP also could accumulate inactive isomers in the environment, which may do harm to ecosystems and crop productivity.…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Degradation Pathway of the Novel Chiral Insecticide Paichongding and Its Impact on Bacterial Communities in Soils

Cai

Wang

et al. 2015

J. Agric. Food Chem.

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To comprehensively understand anaerobic degradation of the novel cis-nitromethylene neonicotinoid insecticide Paichongding (IPP) and its impacts on microbial communities in anaerobic soils, we investigated IPP degradation characteristics, kinetics, and pathway in four different soils. The bacterial community in response to the application of IPP using pyrosequencing of 16S rRNA gene amplicons was also studied. The removal ratio of IPP stereoisomers (RR-IPP, SS-IPP, RS-IPP, and SR-IPP) reached >90% at 60 days after IPP treatment (DAT) in yellow loam soil (F) and paddy field on desalting muddy polder (C), whereas the degradation ratios of RR-IPP and SS-IPP were <30% at 60 DAT in Huangshi soil (J) and yellow paddy soil (H). The results showed that the anaerobic degradation rate of IPP and its stereoisomers was strongly affected by soil physical-chemical characteristics. Furthermore, on the basis of the six metabolites (M1-M6) identified by LC-MS/MS and their behavior, the anaerobic degradation pathway of IPP in soils was proposed. Biodegradation of IPP involved continuous biocatalytic reactions such as nitro reduction and elimination, hydrolysis, demethyl, and ether cleavage reactions. A higher richness of operational taxonomic units (OTUs) was found in soils without IPP application than in soils with IPP application. Both the rarefaction curves and Shannon-Wiener diversity index in anaerobic soils had significant difference after IPP application, and the community composition also differed at both the phyla and genus levels.

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“…Soil enzymes increase the reaction rate at which plant residues decompose and release plant available nutrients 8 . Arylsulfatase are an important enzyme because of the common occurrence of sulphur in the soil and making it available to plants in an oxidation process and is typically widespread in soils (11). This enzyme hydrolyses organic sulphate (VI) esters (R-O-SO3 2− ) to phenols (R-OH) and inorganic sulphates (VI) (SO4 2− ) (12).…”

Section: Introductionmentioning

confidence: 99%

Studies the Effects of Imidacloprid on Enzymatic Activities in Clay Loam Soil

Hazra¹,

Chowdhury²,

Purkait³

2019

IJTSRD

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In-vivo experiment was conducted for toxicity evaluation of Imidacloprid on soil enzyme activities (arylsulphatase, acidphosphatase and dehydrogenase activities) in the treated soil under control condition for 60 days at different application rate 3.97µg/mL (FR), 7.94µg/mL (2FR) and 39.7µg/mL (10FR). Imidacloprid has significant toxic at 2FR and 10FR doses but not on the recommended field rate (FR). Acid phosphatase activity was stimulated at FR rate, whereas at higher dose (10FR) inhibited the activity. A significant drop of dehydrogenase activity was observed irrespective of doses at 30 days of application and after that the enzymatic activity slowly increased. Application of Imidacloprid at FR to agriculture soil of Tripura is not likely to show any detrimental effects on soil acid phosphatase and dehydrogenase activities but at higher elevated doses there appear some harmful effects which was also very much transient.

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Influence of Endosulfan on Microbial Biomass and Soil Enzymatic Activities of a Tropical Alfisol

Cited by 21 publications

References 21 publications

Enzymatic activities and microbial biomass in peanut field soil as affected by the foliar application of tebuconazole

Enzymatic activities and microbial biomass in peanut field soil as affected by the foliar application of tebuconazole

Anaerobic Degradation Pathway of the Novel Chiral Insecticide Paichongding and Its Impact on Bacterial Communities in Soils

Studies the Effects of Imidacloprid on Enzymatic Activities in Clay Loam Soil

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