The occurrence of inducible anti-Escherichia coli activity in hemolymph from the migratory grasshopper, Melanoplus sanguinipes.
1. Inducible antibacterial activity against an Escherichia coli strain has been shown to occur in the hemolymph of Melanoplus sanguinipes. 2. This anti-E. coli activity was induced by the infection with Serratia marcescens or E. coli K12 but not Enterobacter cloacae. 3. The greatest anti-E. coli activity was observed in hemolymph extracted from grasshoppers 6 hr after the injection of any of the two species of bacteria. 4. Anti-E. coli activity disappeared in hemolymph extracted from grasshoppers 8 hr after injection or longer.
Gillespie
J P
JP
Department of Applied Microbiology and Food Science, University of Saskatchewan, Saskatoon, Canada.
Koshinsky
H A
HA
Khachatourians
G G
GG
D000818:Animals; D000917:Antibody Formation; D004926:Escherichia coli / Q000276:immunology*; D006110:Grasshoppers / Q000276:immunology*; D006458:Hemolymph / Q000276:immunology*