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At least 703 records · Page 39Linked to original sources
PubMed1995

[Interspecific protoplast fusion between Bacillus thuringensis Bt-3701 and Bacillus megaterium Bm-107].

The results of the interspecific protoplast fusion between B. thuringensis sub. kurstaki Bt-3701 which has pesticide ability, and B. megaterium var. phosphaticum Bm-107 which has decomposing phosphate activity, were reported. High frequency of protoplast formation and regeneration was obtained with 4h activated Bm-107 treated by 100 micrograms/ml lysozyme, and with 2h activated Bt-3701 treated by 3% glycin and mild temperature. Using 40% PEG and 5% nascent Ca2+ to treat the parential protoplast mixture for 3 min at 37 degrees C, 4 stable fusants were obtained. Biological tests show that they have both pesticide ability and decomposing phosphate activity, but which are weaker than that of parential strains.

Bacillus megaterium↗
PubMed1998

[Cloning and expression of thermostable secretory metalloproteinase genes from two Bacillus brevis strains in Bacillus subtilis cells].

Two closely related genes of thermostable Bac. brevis metalloproteases were cloned and expressed in Bac. subtilis cells. Their restriction maps and directions of transcription were determined. Thermostability and thermal optimum of proteolytic activity of cloned gene products are significantly lower than those of native enzymes. The authors believe that alteration of the enzymes' characteristics may be due to uncorrected folding of thermostable protein in case of its expression in mesophilic bacterial strains.

Bacillus↗