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Ciencia e investigación agraria

On-line version ISSN 0718-1620


SUAREZ-SANCHEZ, Juan; ALATORRE-ROSAS, Raquel; POGGI-VARALDO, Héctor M  and  BARRERA-CORTES, Josefina. Effect of the inoculum size on the axenic in vitro production of Steinernema carpocapsae. Cienc. Inv. Agr. [online]. 2012, vol.39, n.1, pp.137-145. ISSN 0718-1620.

The effect of inoculum size on the axenic in vitro production of Steinernema carpocapsae, using a transparent medium with hemoglobin and cholesterol, was studied. Axenic cultivation was performed with fertile eggs ofS. carpocapsae (hatching of eggs: 89 ± 4%), which were obtained by lyses of female nematodes and subsequent incubation. Two important aspects of this work include the use of a completely transparent medium enriched with hemoglobin and cholesterol and the high multiplication factor of the population (MFIP) of 87, which is considered high for in vitro axenic cultures of nematodes. In vivo methods have the advantage of high MFIP, but they also have the disadvantage of the high number and complexity of the operations involved for the purposes of harvesting axenic nematodes. It is assumed that the availability of a high number of nematodes in a transparent medium will further encourage the characterization of new native strains of nematodes.

Keywords : Axenic culture; hemoglobin; in vitro culture; Steinernema carpocapsae; transparent medium.

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