Activity of Hyperglycemic Hormone in the Eyestalk of Commercially Important Crab Portunus pelagicus (Linnaeus)

Research Article

**Activity of Hyperglycemic Hormone in the Eyestalk of Commercially Important Crab Portunus pelagicus (Linnaeus)**

S. Velmurugan, P. Soundarapandian N. John Samuel and S. Rajagopal

The role of hyperglycemic hormones in the eyestalk ablated and intact control crabs of Portunus pelagicus were studied in relation to various external stimuli. The eyestalk ablated crabs showed lesser free and reducing sugar levels and also lesser haemolymph glucose levels than the intact control crabs. The ablated crabs showed considerably higher glucose levels than the normal crabs when injected with eyestalk extract (CHH). However, the ablated crabs showed lesser glucose levels than the intact control crabs when exposed to chloroform stress. The polyacrylamide gel electrophoresis bands of crude eyestalk extracts and purified extracts showed a much similar pattern of banding and protein nature.

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S. Velmurugan, P. Soundarapandian N. John Samuel and S. Rajagopal, 2008. Activity of Hyperglycemic Hormone in the Eyestalk of Commercially Important Crab Portunus pelagicus (Linnaeus). Journal of Fisheries and Aquatic Science, 3: 77-81.

DOI: 10.3923/jfas.2008.77.81

URL: https://scialert.net/abstract/?doi=jfas.2008.77.81

Journal of Fisheries and Aquatic Science

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Authors

S. Velmurugan

P. Soundarapandian N. John Samuel

S. Rajagopal

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Research Article

**Activity of Hyperglycemic Hormone in the Eyestalk of Commercially Important Crab Portunus pelagicus (Linnaeus)**

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