Abstract：
:The study was carried out to evaluate enzyme activities and histopathological changes due to the effect of acute and chronic definitive toxicity of selenium (Se) on the post larvae (PL) of giant tiger shrimp (Penaeus monodon), and green mussel (Perna viridis). The 96-h Median Lethal concentration (LC50) for the PL of shrimp was 3.36 mg L-1 and the chronic value for the long-term survival endpoint in a 21-d exposure was 0.10 mg L-1. The green mussel 96-h LC50 was 28.41 mg L-1 and the chronic value for the long-term survival endpoint in a 30-d exposure was 3.06 mg L-1. Native polyacrylamide gel electrophoresis revealed altered diverse isoforms of esterase, superoxide dismutase and malate dehydrogenase activities in the PL of shrimp and green mussel exposed to sublethal concentration of Se. Cellular anomalies such as deformation and fusion of corneal cells, detachment of corneal cells from cornea facet and increased space between ommatidia were observed in the compound eye of PL of shrimp exposed to Se for 21-d. Shrinkage and clumping of mucous gland, degenerative changes in phenol gland, and ciliated epithelium were observed in the foot of green mussel exposed to Se for 30-d. This study shows that cellular anomalies in the compound eye of PL of P. monodon and foot tissues of P. viridis described would affect the vision of shrimp and byssus thread formation in green mussel.
journal_name
Chemospherejournal_title
Chemosphereauthors
Nagarjuna A,Karthikeyan P,Mohan D,Rudragouda Marigoudar Sdoi
10.1016/j.chemosphere.2018.02.068subject
Has Abstractpub_date
2018-05-01 00:00:00pages
340-350eissn
0045-6535issn
1879-1298pii
S0045-6535(18)30270-4journal_volume
199pub_type
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