摘要:
Four new strains of Bacillus thuringiensis are disclosed which are active against Coleoptera. The novel strains are identified through PCR technology using mixtures of carefully selected oligonucleotide primers that aid in the prediction of insect toxicity profile for the proteins produced by the strains.
摘要:
Four new strains of Bacillus thuringiensis are disclosed which are active against Coleoptera. The novel strains are identified through PCR technology using mixtures of carefully selected oligonucleotide primers that aid in the prediction of insect toxicity profile for the proteins produced by the strains.
摘要:
Methods for transformation of maize with nucleic acid sequences of interest are disclosed. The method involves subjecting immature zygotic embryos or Type I callus to high velocity microprojectile bombardment. The method is capable of producing transformed maize lines of commercial importance and their hybrid combinations.
摘要:
DNA sequences optimized for expression in plants are disclosed. The DNA sequences preferably encode for an insecticidal polypeptides, particularly insecticidal proteins from Bacillus thuringiensis. Plant promoters, particular tissue-specific and tissue-preferred promoters are also provided. Additionally disclosed are transformation vectors comprising said DNA sequences. The transformation vectors demonstrate high levels of insecticidal activity when transformed into maize.
摘要:
The present invention is drawn to a novel toxin gene purified and isolated from Bacillus thuringiensis var kurstaki and given the designation CryIE(c). The novel toxin gene encodes a protein of approximately 130 kDa in size and is active against Lepidopteran insects. Also included in the invention are the proteins encoded by CryIE(c). Further disclosed are recombinant genes and proteins derived from CryIE(c). Also provided are biologically pure bacterial strains transformed with the CryIE(c) gene which can be used in entomocidal formulations for the control of Lepidopteran insects. Yet another aspect of the invention are plants transformed with the toxin gene or active fragments thereof, particularly where the transforming sequences have been optimized for expression in maize.
摘要:
DNA sequences optimized for expression in plants are disclosed. The DNA sequences preferably encode for an insecticidal polypeptides, particularly insecticidal proteins from Bacillus thuringiensis. Plant promoters, particular tissue-specific and tissue-preferred promoters are also provided. Additionally disclosed are transformation vectors comprising said DNA sequences. The transformation vectors demonstrate high levels of insecticidal activity when transformed into maize.