Ultrastructure of egg membrane of rohu (Labeo rohita)


192 / 127

Authors

  • A Gopalakrishnan NBFGR Cochin Unit, CMFRI Campus, Cochin - 682 014
  • A G Ponniah National Bureau of Fish Genetic Resources, Telibagh, Lucknow - 226 002, India
  • Kuldeep K Lal National Bureau of Fish Genetic Resources, Telibagh, Lucknow - 226 002, India

Abstract

The fine structure of the egg envelope and micropyle of unfertilised spawnedeggs of rohu (Labeo rohita) was observed using scanning electron microscope(SEM). The outer surface showed regularly arranged pores (dia. 0.20 - 0.25 μm)but was devoid of any filaments, fibrils or wrinkles. The micropyle was funnelshaped which exibited an outer pit (10 μm dia.) narrowing into a distinct canal(4.5 μm dia.). The larger diameter of the micropylar canal in comparison withthe sperm head size of rohu and some other cyprinids make intergeneric andinterspecific hybridisation easy in rohu.

Downloads

Download data is not yet available.

Author Biographies

  • A Gopalakrishnan, NBFGR Cochin Unit, CMFRI Campus, Cochin - 682 014
    NBFGR Cochin Unit, CMFRI Campus, Cochin - 682 014
  • A G Ponniah, National Bureau of Fish Genetic Resources, Telibagh, Lucknow - 226 002, India
    National Bureau of Fish Genetic Resources, Telibagh, Lucknow - 226 002, India
  • Kuldeep K Lal, National Bureau of Fish Genetic Resources, Telibagh, Lucknow - 226 002, India
    National Bureau of Fish Genetic Resources, Telibagh, Lucknow - 226 002, India

Downloads

Issue

Vol. 49 No. 1 (2002)

Section

Note

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Gopalakrishnan, A., Ponniah, A. G., & Lal, K. K. (2011). Ultrastructure of egg membrane of rohu (Labeo rohita). Indian Journal of Fisheries, 49(1), 93-95. https://epubs.icar.org.in/index.php/IJF/article/view/8378