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Waste leachate induces histological alterations in Limicolaria aurora (Jay, 1839) digestive gland

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Title Waste leachate induces histological alterations in Limicolaria aurora (Jay, 1839) digestive gland
 
Creator CU, Ugokwe
FC, Okafor
BI, Ezewudo
TE, Olagunju
EU, Njoku
 
Subject Environmental pollution
Giant African land snail
Waste management
 
Description 360-367
Unsanitary open dumping and burning of wastes in dumpsites
results to constant leaching of waste pollutants into the
surrounding environment with attendant harmful consequences on
wildlife and public health. Here, we investigated the histological
effects of Onitsha municipal waste leachate on the Giant African
land snail, Limicolaria aurora (Jay 1839). The histopathological
effects of waste leachate on the digestive cells of the snails were
examined following standard protocols. Snails were exposed to
different concentrations (0, 6.25, 12.5, 25.0 and 50.0%) of the
leachate for a total duration of 21 days. Histological results
obtained showed that waste leachate caused dose and duration
dependent alterations in the digestive glands of L. aurora.
Obvious histological variations were observed in snails exposed to
50% concentrations of the leachate compared to other doses.
Observed histological changes were mainly degeneration of the
digestive tubules, fragmentation and disappearance of the
digestive cells, marked increase in excretory cells, necrosis and
epithelia sloughing. This study therefore highlights the potential
toxicity of waste leachate of causing mild to severe damage in the
tissues of organisms. Reinforcing the fact, that waste leachate
contains a mix of toxic substances that could pose a severe injury
to the biological system of surrounding biota, including humans.
 
Date 2022-05-02T10:59:58Z
2022-05-02T10:59:58Z
2022-05
 
Type Article
 
Identifier 0975-1009 (Online); 0019-5189 (Print)
http://nopr.niscair.res.in/handle/123456789/59635
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEB Vol.60(05) [May 2022]