Sequential inflammatory response of fingerlings of Indian major carps to Aphanomyces invadans


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Authors

  • P K Pradhan College of Fisheries, Central Agricultural University, Lembucherra, Tripura - 799 210, India.
  • C V Mohan Network of Aquaculture Centers in Asia-Pacific (NACA), P. O. Box 1040, Kasetsart Post Office, Bangkok, 10903, Thailand.
  • K M Shankar Fish Pathology and Biotechnology Laboratory, Department of Aquaculture, College of Fisheries, Karnataka Veterinary, Animal and Fisheries Science University Mangalore - 575 002, India
  • B Mohana Kumar Gyeongsang National University, Republic of Korea, 660701, Korea

Abstract

The present paper describes the sequential inflammatory response of fingerlings of Indian major carps (IMC) to experimental infection of the fungal pathogen, Aphanomyces invadans. In all the three species of IMC, at one day of post injection (dpi), few fungal hyphae penetrating the muscle
fibres were observed in the lesion area but no inflammatory response was found at the site. At 2 dpi, numbers of hyphae in the lesion increased and there was extensive infiltration of
inflammatory cells. At 4 dpi, the mycotic lesion spread in the musculature at the site of injection and the lesion further extended even to the non-injected lateral side of the body. The fungal hyphae at the central part of the lesion were encapsulated by macrophages and/or epithelioid cells forming granulomata. At 6 dpi, both injected and non-injected sides and most of the internal organs revealed extensive mycotic lesions. There was extensive myonecrosis in large areas of myotome

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Author Biographies

  • P K Pradhan, College of Fisheries, Central Agricultural University, Lembucherra, Tripura - 799 210, India.
    College of Fisheries, Central Agricultural University, Lembucherra, Tripura - 799 210, India.
  • C V Mohan, Network of Aquaculture Centers in Asia-Pacific (NACA), P. O. Box 1040, Kasetsart Post Office, Bangkok, 10903, Thailand.
    Network of Aquaculture Centers in Asia-Pacific (NACA), P. O. Box 1040, Kasetsart Post Office, Bangkok,
    10903, Thailand.
  • K M Shankar, Fish Pathology and Biotechnology Laboratory, Department of Aquaculture, College of Fisheries, Karnataka Veterinary, Animal and Fisheries Science University Mangalore - 575 002, India
    Fish Pathology and Biotechnology Laboratory, Department of Aquaculture,
    College of Fisheries, Karnataka Veterinary, Animal and Fisheries Science University
    Mangalore - 575 002, India
  • B Mohana Kumar, Gyeongsang National University, Republic of Korea, 660701, Korea
    Gyeongsang National University, Republic of Korea, 660701, Korea

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Issue

Vol. 54 No. 4 (2007)

Section

Articles

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

Pradhan, P. K., Mohan, C. V., Shankar, K. M., & Kumar, B. M. (2011). Sequential inflammatory response of fingerlings of Indian major carps to Aphanomyces invadans. Indian Journal of Fisheries, 54(4), 389-396. https://epubs.icar.org.in/index.php/IJF/article/view/6967