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Development of an enzyme-linked immunosorbent assay (ELISA) for vitellogenin measurement in greenback flounder Rhombosolea tapirina

Citation

Sun, B and Pankhurst, NW and Watts, M, Development of an enzyme-linked immunosorbent assay (ELISA) for vitellogenin measurement in greenback flounder Rhombosolea tapirina, Fish Physiology and Biochemistry, 29, (1) pp. 13-21. ISSN 0920-1742 (2003) [Refereed Article]

DOI: doi:10.1023/B:FISH.0000035890.17372.75

Abstract

Vitellogenin (Vtg) was purified from the plasma of 17β-estradiol (E 2)-injected male greenback flounder, Rhombosolea tapirina. The molecular weight of the native Vtg was estimated by gel filtration as ∼ 540 kD. SDS-PAGE and Western blotting analyses indicated that this protein consisted of three bands with molecular weights of 155, 104,79 kD, respectively. A polyclonal antibody against the highest molecular weight band of putative Vtg was generated in sheep and an indirect antibody-capture competitive enzyme-linked immunosorbent assay (ELISA) was developed. The assay was validated for plasma Vtg measurement in greenback flounder. Serial dilutions of plasma from vitellogenic females parallelled the standard Vtg curve, whereas no cross-reaction was observed with the plasma of males in the ELISA. The Vtg ELISA was used to assess the induction of Vtg by E 2 in vivo in males. The induction of Vtg in greenback flounder showed a time- and dose-dependent response as in other species. In E 2-treated fish, detectable levels of Vtg were first found at 48 h, and reached a peak at 96 h post-injection. Plasma levels of Vtg increased as the E2 dose increased with a threshold of ∼ 0.1 mg kg -1. © 2004 Kluwer Academic Publishers.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Fisheries - Aquaculture not elsewhere classified
Author:Sun, B (Mr Baoguo Sun)
Author:Pankhurst, NW (Professor Ned Pankhurst)
Author:Watts, M (Dr Marianne Watts)
ID Code:29859
Year Published:2003
Web of Science® Times Cited:13
Deposited By:TAFI - Aquaculture
Deposited On:2004-08-01
Last Modified:2004-08-30
Downloads:0

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