title: Influence of the insecticides acetamiprid and carbofuran on arylamidase and myrosinase activities in the tropical black and red clay soils.
abstract: The objective of this study was to determine the effects of two insecticides, namely, acetamiprid and carbofuran on the enzymatic activities of arylamidase (as glucose formed from sinigrin) and myrosinase (as β-naphthylamine formed from L-leucine β-naphthylamide) in the black and red clay soils collected from a fallow groundnut (Arachis hypogaea L.) fields in the Anantapur District, Andhra Pradesh, India. The study was realized within the framework of the laboratory experiments in which the acetamiprid and carbofuran were applied to the soils at different doses (1.0, 2.5, 5.0, 7.5, 10.0 kg ha(-1)). Initially, the physicochechemical properties of the soil samples were analyzed. After 10 days of pesticide application, the soil samples were analyzed for the enzyme activities. Acetamiprid and carbofuran stimulated the arylamidase and myrosinase activities at lower concentrations after 10 days incubation. Striking stimulation in soil enzyme activities was noticed at 2.5 kg ha(-1), persists for 20 days in both the soils. Overall, higher concentrations (5.0-10.0 kg ha(-1)) of acetamiprid and carbofuran were toxic or innocuous to the arylamidase and myrosinase activities. Nevertheless, the outcomes of the present study clearly indicate that the use of these insecticides (at field application rates) in the groundnut fields (black and red clay soils) stimulated the enzyme (arylamidase and myrosinase) activities.
authors.affiliation: Department of Microbiology, Sri Krishnadevaraya University, Anantapur, 515003, Andhra Pradesh, India, jaffermicro@gmail.com.
authors.forename: G Jaffer
authors.initials: GJ
authors.lastname: Mohiddin
authors.forename: M
authors.initials: M
authors.lastname: Srinivasulu
authors.forename: N R
authors.initials: NR
authors.lastname: Maddela
authors.forename: B
authors.initials: B
authors.lastname: Manjunatha
authors.forename: V
authors.initials: V
authors.lastname: Rangaswamy
authors.forename: Alma Rosel
authors.initials: AR
authors.lastname: Koch Kaiser
authors.forename: Jessica Cristina
authors.initials: JC
authors.lastname: Maisincho Asqui
authors.forename: O
authors.initials: O
authors.lastname: Darwin Rueda
mesh_terms: D000538:Aluminum Silicates; D000581:Amidohydrolases / Q000032:analysis / Q000378:metabolism; D002235:Carbofuran / Q000032:analysis / Q000633:toxicity*; D000077215:Clay; D004784:Environmental Monitoring; D006026:Glycoside Hydrolases / Q000032:analysis* / Q000378:metabolism; D007194:India; D007306:Insecticides / Q000032:analysis / Q000633:toxicity*; D007930:Leucine / Q000031:analogs & derivatives / Q000032:analysis / Q000378:metabolism; D000073943:Neonicotinoids; D011725:Pyridines / Q000032:analysis / Q000633:toxicity*; D012987:Soil / Q000737:chemistry; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000633:toxicity*; D014329:Tropical Climate
chemical_list: D000538:Aluminum Silicates; D007306:Insecticides; D000073943:Neonicotinoids; D011725:Pyridines; D012987:Soil; D012989:Soil Pollutants; C464485:acetamiprid; C040135:leucine-beta-naphthylamide; D006026:Glycoside Hydrolases; C022739:thioglucosidase; D000581:Amidohydrolases; C019665:amidase; D007930:Leucine; D002235:Carbofuran; D000077215:Clay