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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 24, No. 7, 2020, pp. 1253-1259
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Bioline Code: ja20181
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Applied Sciences and Environmental Management, Vol. 24, No. 7, 2020, pp. 1253-1259
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Impact of Varying Herbicide Contaminated Soil on Biomarkers of Achatina achatina
UBANI, CS; NWEZE, EJ; NWACHUKWU, JN & ARAZU, AV
Abstract
Soil microrganisms or faunas play vital roles in biogeochemical cycles which maintain the state
of equilibrium of mineral elements in soil ecosystem as well as impacting on its texture and structure in otherward
productivity. The impact of herbicides on biological population of soil samples spiked with various herbicides such
as: dragon (paraquat) dichloride, Action 40 (Dimethoate), Vanish (Glyphosate). Buta force (Butachlor) and Amino
force (2, 4-D amine 720G/L) were investigated. The soils were spiked with 10% of the herbicides, incubated for
4weeks and the oxidative stress as well as the acetylcholinesterase activity of soil faunas used as biomonitors. There
was a progressive increase of lipid peroxidation in achatina achatina with vanish having the highest level of
malondialdehyde (5.12 mg.dl) and dragon herbicides with the lowest levels on the second week (2.67 mg/dl). The
sample contaminated with amino force herbicide had the least impact on glutathione levels (1.66 mg/dl) while the
dragon herbicide depleted more of the glutathione levels (1.31 mg/dl). The Achatina achatina incubated with the
soil sample spiked with vanish registered the highest catalase activity (6.2 1U/L) while action 40 recorded 3.9 IU/L
as the least activity. Acetylcholineesterase activity seen in Achatina achatina incubated with soil sample 4(vanish)
was inhibited beyond all other samples with 0.169 IU g protein-1 as the least value with the exception of amino force
that depreciated to 0.108 IU g protein-1on the third week. This study reveals how detrimental these herbicides can
be to achatina achatina which counsels the farmers on their selectivity for agricultural purposes.
Keywords
oxidative stress; acetylcholinesterase; herbicides; biomarkers; activity.
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© Copyright 2020 - Ubani et al.
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