NDLI: Effect of Copper on Morphology, Weight, and Chromosomal Aberrations in the Spiny Lobster, Panulirus homarus (Linnaeus, 1758)

Content Provider	Springer Nature Link
Author	Maharajan, A. Vaseeharan, B. Rajalakshmi, S. Vijayakumaran, M. Kumarasamy, P. Chen, J. C.
Copyright Year	2011
Abstract	Spiny lobster Panulirus homarus which had been exposed to cupric ion at 9.55 and 19.1 μg/l for 28 days was examined for sub-lethal effects including morphology, wet weight, and induced genotoxic effect on the chromosome. Following cupric exposure, the color of lobster P. homarus changed from yellowish-brown to greenish black in the hepatopancreas, changed from normal creamy white to yellowish white in the muscle, and changed to greenish black in the gill. A significant change in the percentage of wet weight of muscle (28.70 ± 0.41–23.47 ± 0.45), hepatopancreas (4.03 ± 0.12–2.63 ± 0.17), and gills (3.63 ± 0.45–3.87 ± 0.12) were observed in the copper-treated lobsters. The diploid number of chromosomes of P. homarus was over 200 metaphases from ten lobsters, as 2n = 58, and consisted of 16 acrocentric, seven metacentric, and six sub-metacentric chromosomes. The lobsters exposed to cupric ion at 9.55 and 19.1 μg/l showed different types of chromosomal aberrations such as centromeric gaps, chromatid breaks, centromeric fusion, stickiness, ring chromosomes, and acrocentric association region. The frequency of aberrations increased with duration of exposure. In conclusion, it was suggested that cupric ion interacts with the spindle formation and consequently distorts the normal karyomorphology, indicating cytogenetic effect on lobster.
Starting Page	769
Ending Page	780
Page Count	12
File Format	PDF
ISSN	01634984
Journal	Biological Trace Element Research
Volume Number	144
Issue Number	1-3
e-ISSN	15590720
Language	English
Publisher	Humana Press Inc
Publisher Date	2011-06-21
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Panulirus homarus Copper Wet weight Karyotype Chromosomal anomalies Genotoxicity Biochemistry Biotechnology Nutrition Oncology
Content Type	Text
Resource Type	Article
Subject	Biochemistry (medical) Endocrinology, Diabetes and Metabolism Clinical Biochemistry Biochemistry Inorganic Chemistry

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