The present invention relates to a novel sporulation gene isolated from B. thuringiensis, and a DNA segment comprising the nucleic acid sequences encoding the gene and DNA sequences encoding crystal toxin proteins wherein said DNA segment is stably integrated into a B. thuringiensis host by homologous recombination. The invention further relates to a DNA segment wherein the sporulation gene is mutated therebyrendering an oligosporogenic or asporogenic transformed B. thuringiensis as a result of stable integration of the DNA segment into the Bacillus thuringiensis chromosome by homologous recombination.
申请公布号
CA2184301(A1)
申请公布日期
1997.03.01
申请号
CA19962184301
申请日期
1996.08.28
申请人
COOPER, NICOLE HELEN;KALMAN, SUE STEPHANIE;REYNOSO, MITRA SHAHABI;YAMAMOTO, TAKASHI
发明人
COOPER, NICOLE HELEN;KALMAN, SUE STEPHANIE;REYNOSO, MITRA SHAHABI;YAMAMOTO, TAKASHI