Larvicidal toxins from Bacillus thuringiensis subspp. kurstaki, morrisoni (strain tenebrionis), and israelensis have no microbicidal or microbiostatic activity against selected bacteria, fungi, and algae in vitro

Can J Microbiol. 2002 Mar;48(3):262-7. doi: 10.1139/w02-005.


The insecticidal toxins from Bacillus thuringiensis subspp. kurstaki (antilepidopteran), morrisoni strain tenebrionis (anticoleopteran), and israelensis (antidipteran) did not affect the growth of a variety of bacteria (8 gram-negative, 5 gram-positive, and a cyanobacterium), fungi (2 Zygomycetes, 1 Ascomycete, 2 Deuteromycetes, and 2 yeasts), and algae (primarily green and diatoms) in pure and mixed culture, as determined by dilution, disk-diffusion, and sporulation assays with purified free and clay-bound toxins. The insecticidal crystal proteins from B. thuringiensis subspp. kurstaki and israelensis had no antibiotic effect on various gram-positive bacteria.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Bacillus thuringiensis / metabolism*
  • Bacillus thuringiensis Toxins
  • Bacteria / drug effects*
  • Bacterial Proteins / pharmacology*
  • Bacterial Toxins / pharmacology*
  • Endotoxins / pharmacology*
  • Eukaryota / drug effects*
  • Fungi / drug effects*
  • Hemolysin Proteins
  • Insecta / drug effects
  • Insecta / growth & development
  • Larva / drug effects
  • Microbial Sensitivity Tests / methods


  • Bacillus thuringiensis Toxins
  • Bacterial Proteins
  • Bacterial Toxins
  • Endotoxins
  • Hemolysin Proteins
  • insecticidal crystal protein, Bacillus Thuringiensis