Virulence of Galleria mellonella Nuclear Polyhedrosis Virus to Diamondback Moth, Plutella xylostella (L.) After Serial Passage in Spodoptera frugiperda Cells Cultivated in vitro

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Warasirin Sornlake
Ounruan Petcharawan
Serge Belloncik

Abstract

In this study, Galleria mellonella nuclear polyhedrosis virus (GmNPV) was serially passaged 20 times in Spodoptera frugiperda cell line (Sf9). At each passage of virus production, some of the replication characteristics were analyzed including the percentage of infection, the production of polyhedral and extracellular virus (ECV) titers. Also the comparative bioassay was done to determine the virulence of the various isolates of GmNPV for the 2nd stage larvae of Plutella xylostella.


            After 10 passges in cell culture, signicicant reductions in infection percentage and the polyhedra production were observed. In the 9th and 10th passages, the ECV production was increased significantly. The electron microscopic observation also showed the abnormality of polyhedral morphology at high frequency after 10 serial passages. The comparative bioassay revealed that the virulence of wild isolate (LC50=1.94x104 OBs/cm2) was highest when compared to the plaque-purified isolate (LC50=4.71x104 OBs/cm2), the 1st passage isolate (LC50=5.68x104 OBs/cm2), the 5th passage isolate (LC50=6.75x104 OBs/cm2), and the 10th passage isolate (LC50=6.89x104 OBs/cm2). The LT50 showed that all isolates killed larvae at similar rates (P.0.05) with the shortest incubation time in the wild isolate (4.8 days) followed by the 1st passage isolate (5.1 days), the 10th passage isolate (5.1 days), the plaque-purified isolate (5.4 days) and the 10th isolate (5.6 days), respectively.


 

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References

[1] D.G. Harcourt, Biology of the Diamondback Moth, Plutella maculipennis (Curt.) (Lepidoptera: Plutellidae), in Eastern Ontario. II. Life-History, Behavior, and Host Relationships, Can. Entomol., 89, 1957, 554-564.
[2] W. Rushtapakornchai and A. Vuttanatangum, Present status of insecticidal control of diamondback moth in Thailand. In Diamondback Moth Management, T.G. Griggs and N.S. Talakar (eds.), AVRDC, Taiwan, 1986, 307-312.
[3] J. Hubner, Use of baculoviruses in pest management programs. In the Biology of Baculoviruses vol. II, R.R. Granados and B.A. Federici, (eds.), Florida, CRD press, 1986, 181-202.
[4] C.C. Payne, Insect pathogenic viruses aspect control agents. In Biological plant and health protection: Biological Control of Plants and of Vectors of Human and Animal Diseases. Progress in Zoology Vol. 32, J.M. Franz (ed.), Stuttgart, Gustav Fischer Verlag, 1986, 183-200.
[5] H.B. Abdul Kadir and C.C. Payne, Relationship of Plutella xylostella Nuclear Polyhedrosis virus (NPV) to NPV of Galleria mellonella, J. Invertebr. Pathol., 53, 1989, 113-116.
[6] H.B. Abdul Kadir, Potential of Several Baculoviruses for the Control of Diamondback Moth and Crocidolomia binotalis on Cabbages, Proc. 1st international workshop. On Diamondback moth and other cruciferous pests, Taiwan, 1992, 205-212.
[7] J.L. Vaughn, The production of viruses of viruses for insect control in large scale cultures of insect cells. In Invertebrate Tissue Culture: Research Applications, K. Maramorosch (ed.), New York, Academic Press, 1976, 295.
[8] S.A. Weiss and J.L.Vaughn, Cell culture methods for large-scale propagation of Baculoviruses. In The Biology of Bacouloviruses. Volume II, R.R. Granados and B.A. Federici (eds), Florida, CRC Press, 1986, 63-87.
[9] B. Belisle, C. Knoch, C. Celeri, T. Montgomery, E. Gong, E. Dougherty, D. Lynn, M. Shapiro and Linduska, Large Scale In Vitro Production of Wild-Type AcMNPV with Potential for Use as a Biological Pesticide, Proc. 8th International Conference on Invertebrate and Fish Tissue Culture, Columbia, 1991, 117-126
[10] S. Belloncik, W.A. Akoury and M. Cheroutre, Importance of Cholesterol for Nuclear Polyhedrosis Virus (NPV) Replication in Cell Cultures Adapted to Serum-Free Medium. In Invertebrate Cell Culture: Novel Directions and Biotechnology Applications, K. Maramorosh, and J. Mitsuhashi (eds.), Florida, CRC Press, 1977, 141-147.
[11] F.A. Miller, and K.P. Dawes, Restriction Endonuclease Analysis for the Identification of the Baculovirus Pesticides, Appl. Environ. Microbiol., 35, 1978, 411-421.
[12] G. Kärver, Eeitrag Zur Kollektiven Behandlung Pharmakologischer reihenversuche, Arch.Exptl. Pharmakol. 192, 1931, 480-483.
[13] H.F. Evans, Quantitative Assessment of the Relationships between Dosage and Response of the nuclear polyhedrosis virus of Mamestra brassicae, J. Invertebr. Pathol., 37, 1980, 101-109.
[14] P.P. Sikorowski, J.R. Broome and G.L. Andrews, Simple Method for Detection of Cytoplasmic Polyhedrosis Virus in Heliothis virescence, J. Invertebr. Pathol., 17, 1971, 451-452.
[15] D.L. Finney, Statistical methods in biological assay. 3rd ed. (London: Charles Griffin and Co., 1978).
[16] W.F. Hink and E. Strauss, Replication and Passage of Alfalfa Looper Nuclear Polyedrosis Virus Plaque Variants in Cloned Cell Cultures and Larval Stages of Four Host Species, J. Inverteb. Pathol., 27, 1976, 49-55.
[17] E.A. MacKinnon, J.F. Henderson, D.B. Stoltz and P. Faulkner, Morphogenesis of Nuclear Polyhedrosis Virus Under Conditions of Prolonged Passage In Vitro, J. Ultrastruct. Res., 49, 1974, 419-435.
[18] K.N. Potter, P. Faulkner and E.A. Ma0000000000000000000cKinnon, Strain Selection During Serial Passage of Trichoplusia ni Nuclear Polyhedrosis Virus, J. Vitro., 18, 1976, 1040-1050.
[19] K.N. Potter, R.P. Jaques and P. Faulkner, Modification of Trichoplusia ni Nuclear Polyhedrosis Virus Passaged In Vitro, Inervirology, 9, 1978, 76-85.
[20] M.J. Eraser and W.F. Hink, The Isolation and Characterization of the MP and FP Plaque Variants of Galleria mellonella Nuclear Polyhedrosis Virus, Virology, 117, 1982, 336-378.
[21] J.M. Slavicek, and M.J. Mercer, M.E. Kelly and N. Hayes-Plazolles, Isolation of a Baculovirus Variant that Exhibits Enhanced Polyhedra Production Stability During Serial Passage in Cell Culture, J. Invertebr. Pathol., 67, 1996, 153-160.
[22] S. Chakraborty and S. Reid, Serial Passage of a Helicoverpa armigera Nucleopolyhedrovirus in Helicoverpa zea Cell Cultures, J. Invertebr. Pathol., 73, 1999, 303-308.
[23] M.J. Fraser, J.S. Brusca, G.E. Smith and M.D. Summers, Transposon-Mediated Mutagenesis of a Baculovirus, Virology, 145, 1985, 356-361.
[24] S. Kumar and L.K. Miller, Effects of Serial Passage of Autographa californica Nuclear Polyhedrosis Virus in Cell Culture, Virus Res., 7, 1987, 335-350.
[25] B. Beames and M.D. Summers, Sequence Comparison of Cellular and Viral Copies of Host Cell DNA Insertions Found in Autographa californica Nuclear Polyhedrosis Virus, Virology, 174, 1990, 354-263.
[26] R.L. Harrison and M.D. Summers, Mutations in the Autographa californica Multinucleocapsid Nuclear Polyhedrosis Virus 25 kDa Protein Gene Result in Reduced Virion Occlsion, Altered Intranuclear Envelopment and Enhance Virus Production, J. Gen. Virol., 76, 1995, 1451-1459.
[27] J.F. Michaud and S. Belloncik, Stabilité de Production de Baculovirus dans un Systéme Cellulaire dans Sé rum de Veau Foetal, 68e Congrés de ľAcfas 15-19 mai 2000, Université de Montréal, 2000.
[28] J.F. Michaud, Réplication de Baculovirus Sauvage et Recombinant dans un Systéme Cellulaire en Absence de Sérum de Veau Faetal, M.Sc. Thesis INRS-Institut Armand-Frappier, Quebeć, Canada. 2001.
[29] M. Kool, J.W. Vonken, F.L.J. Vanlier, J. Tramper and J.M. Vlak, Detection and Analysis of Autographa californica Nuclear Polyhedrosis Virus Mutants with Defective Interfering Properties, Virology, 183, 1991, 739-746.
[30] J.M. Slavicik, M.J. Mercer, M.E. Kelly, and H. Hayes-Plazolles, Rapid Formation of Few Polyhedra Mutants of Lymantria dispar Multinucleocapsid Nuclear Polyhedrosis Virus During Serial Passage in Cell Culture, Biol. Control, 5, 1995, 251-261.
[31] D.M. Kolody-Hirsch, and N.A.M. Van Beek, Selection of Morphological Variant of Autographa californica Nuclear Polyhedrosis Virus with Increased Virulence Following Serial Passage in Plutella xylostella, J. Invertebr. Pathol., 69, 1997, 205-211.
[32] P.V. Vail, D.K. Hunter, and D.L. Jay, Nuclear Polyhedrosis of the Diamondback Moth, Plutella xylostella, J. Invertebr. Pothol., 20, 1972, 216-217.
[33] K.D. Viever and P.L. Andrews, Susceptibility of Lepidopterous Larvae to Plutella xylostella Nuclear Polyhedrosis Virus, J. Invertebr. Pathol., 44, 1984, 117-119.
[34] C.W. Kariuki, and A.H. McIntosh, Infectivity Studies of a New Baculovirus Isolate for the Control of the Diamondback Moth (Plutellidae: Lepidoptera), J. Econ. Entomol., 92(5), 1999, 1093-1098.
[35] D.E. Lynn, Enhanced Infectivity of Occluded Virions of the Gypsy Moth Nuclear Polyhedrosis Virus for Cell Cultures, J. Invertebr. Pathol., 63, 1994, 268-274.