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Possible involvement of gut‐lumen bacteria in in‐vivo proteolytic degradation of Bacillus thuringiensis δ‐endotoxins
Author(s) -
Kawahara M.,
Ohba M.
Publication year - 1994
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1994.tb00481.x
Subject(s) - bacillus thuringiensis , microbiology and biotechnology , spodoptera , exigua , biology , bacteria , in vivo , bacillales , larva , beet armyworm , bacillaceae , inclusion bodies , biochemistry , escherichia coli , botany , recombinant dna , bacillus subtilis , genetics , gene
Larval gu juice from aseptically reared beet armyworm, Spodoptera exigua , exhibited lowered processing activity towards the parasporal inclusion proteins of Bacillus thuringiensis as compared with that from normal larvae. Of the seven aerobic bacteria predominantly found in guts of normal larvae, a Bacillus isolate showed marked proteolytic activity against inclusion proteins. The results suggest the possible participation of gut‐lumen micro‐organisms in in‐vivo degradation and processing of B. thuringiensis δ‐endotoxins.