Haemolymph and Fat Body Metallo-protease Associated with Enterobacter cloacae Infection in the Bloodsucking Insect, Rhodnius prolixus

Memórias do Instituto Oswaldo Cruz

D Feder¹  Jm Salles¹  Es Garcia¹  P Azambuja² 

[1] ,Instituto Oswaldo Cruz

关键词: fat body;    haemolymph;    Rhodnius;    protease;    prophenoloxidase;    Triatomine;   

DOI  :  10.1590/S0074-02761998000600023

来源: SciELO

【 摘 要 】

Analysis of zymograms with SDS-polyacrilamide gel electrophoresis containing gelatin as substrate, and performed on samples of haemolymph or fat body taken from Rhodnius prolixus inoculated or not with Enterobacter cloacae, demonstrated distinct patterns of protease activities: (i) in the haemolymph two proteases were induced in insects inoculated with bacteria; (ii) two proteases were detected in the fat bodies derived from non-inoculated controls or insect inoculated with sterile culture medium; (iii) haemolymph and fat body had both the same apparent molecular weights proteases (46 and 56 kDa); and (iv) these enzymes were characterized as metallo-proteases. The association of these enzymes in Rhodnius infected with bacteria was discussed.

【 授权许可】

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