%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES %A Léry, Xavier %A El-Tarras, A. %A Monsarrat, Annie %A Abol-Ela, S. %A Giannotti, J. %T Establishment of two cell lines from embryonic cells of Pectinophora gossypiella (Lepidoptera : Gelichiidae) %D 1996 %L fdi:010012227 %G ENG %J Applied Entomology and Zoology %@ 0003-6862 %K INSECTE NUISIBLE ; COTON ; MILIEU DE CULTURE ; VIRUS ENTOMOPATHOGENE %K CULTURE CELLULAIRE %N 4 %P 557-565 %U https://www.documentation.ird.fr/hor/fdi:010012227 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_47-48/010012227.pdf %V 31 %W Horizon (IRD) %X Two cell lines from the most important insect pest of cotton, #Pectinophora gossypiella$ S., were obtained from an embryonic tissue culture. The cells were cultured in GRACE's modified medium. The first cell line, designated ORS-PgS (PgS), was obtained by selecting the non-adherent cells during subculturing and consisted of a homogeneous population of rounded cells. The second cell line, designated ORS-PgA (PgA), obtained without any artificial selection, was a heterogeneous population of spherical and spindle-shaped cells with a great capacity to adhere. The two cell lines had a doubling time of 40 and 48 h respectively and were sub-cultured for more than 50 passages. Their polypeptidic profiles appeared identical but were different from those of other lepidopteran cell lines tested. The two cell lines support the multiplication of #Autographa california$ nucleopolyhedrovirus, producing 100000 plaque forming units/ml. In 1 to 2% PgS cells, polyhedra were synthetized, whereas PgA cells multiplied only virions. (Résumé d'auteur) %$ 076RAVPLA08 ; 020BIOL