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Cellosaurus publication CLPUB00186

Publication number CLPUB00186
Authors Sohi S.S., Lalouette W., MacDonald J.A., Gringorten J.L., Budau C.B.
Title Establishment of continuous midgut cell lines of spruce budworm (Lepidoptera: Tortricidae).
Citation In Vitro Cell. Dev. Biol. Anim. 29:56A-56A(1993)
Web pages https://www.jstor.org/stable/4294015
Abstract The spruce budworm, Choristoneura fumiferana, is the most destructive forest insect pest in Canada and the northern United States. We have established its four continuous midgut cell lines for use in developing biorational control agents for this insect. The midguts were removed from surface sterilized insects. After cleaning, they were chopped into small pieces, and treated with 0.05% trypsin. The tissue fragments were removed by centrifugation, resuspended in growth medium, transferred to 25-cm2 plastic tissue culture flasks, and were kept at 28 Celsius. Three different media (Grace's, EX-CELL 400, and SF-900) supplemented with 10-12% fetal bovine serum were used. The cell lines have been subcultured 50-125 times. Their species identity has been confirmed by isozyme analysis. The cells are of different sizes and shapes, and grow attached to the substrate. Electron microscopy has revealed that the cultures have mixed populations of midgut cells and other cell types. The cells have been freeze-preserved in liquid nitrogen and successfully revived. Some of the cell lines replicate the spruce budworm nuclear polyhedrosis virus and some are susceptible to certain delta-endotoxin proteins of Bacillus thuringiensis.
Cell lines CVCL_WV83; FPMI-CF-200
CVCL_Z469; FPMI-CF-203
CVCL_WV84; FPMI-CF-204
CVCL_WV85; FPMI-CF-205