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Certain hemocyte proteins of the medfly, Ceratitis capitata , are responsible for nonself recognition and immobilization of Escherichia coli in vitro
Author(s) -
Marmaras Vassilis J.,
Charalambidis Nektarios
Publication year - 1992
Publication title -
archives of insect biochemistry and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.576
H-Index - 66
eISSN - 1520-6327
pISSN - 0739-4462
DOI - 10.1002/arch.940210405
Subject(s) - ceratitis capitata , escherichia coli , biology , tyrosine , in vitro , bacteria , enterobacteriaceae , biochemistry , hemocyte , microbiology and biotechnology , botany , genetics , tephritidae , immune system , pest analysis , gene
The results indicate that certain hemocyte proteins of the medfly, Ceratitis capitata , are responsible for the recognition of foreignness, since they are able to bind to the surface of Escherichia coli in vitro. Furthermore, when the E. Coli ‐hemocyte protein complex was incubated in the presence of tyrosine and phenoloxidase, the bacteria were immobilized, forming large aggregates. The formation of aggregates seems to be due to reactive tyrosine intermediate (quinone) generated by the action of phenoloxidase. © 1992 Wiley‐Liss, Inc.