| distribution and diversity of dipteran-specific cry and cyt genes in native bacillus thuringiensis strains obtained from different ecosystems of iran. | one hundred and twenty-eight bacillus thuringiensis isolates from fields of different ecological regions of iran were collected to study the distribution and diversity of dipteran-specific cry and cyt genes. the percentage of samples with bt showed significant differences between different regions and also between different fields. the most bt frequency was observed in the soil samples collected from caspianic zone (7%) and soils of cotton (17%). characterization of isolates was based on morphol ... | 2008 | 17999100 |
| molecular detection of nematicidal crystalliferous bacillus thuringiensis strains of iran and evaluation of their toxicity on free-living and plant-parasitic nematodes. | the characterization of nematode-effective strains and cry genes in the iranian bacillus thuringiensis (bt) collection (70 isolates) is presented. characterization was based on pcr analysis using 12 specific primers for cry5, cry6, cry12, cry13, cry14, and cry21 genes encoding proteins active against nematodes, crystal morphology, and protein band patterns as well as their nematicidal activity on root-knot nematode (meloidogyne incognita) and two free-living nematodes (chiloplacus tenuis and acr ... | 2008 | 18923549 |
| coleopteran-specific and putative novel cry genes in iranian native bacillus thuringiensis collection. | the characterization of the strains containing coleopteran-specific and also putative novel cry genes in iranian native bacillus thuringiensis collection is presented. characterization was based on pcr analysis using 31 general and specific primers for cry1b, cry1i, cry3a, cry3b, cry3c, cry7a, cry8a, cry8b, cry8c, cry14, cry18, cry26, cry28, cry34 and cry35 genes, protein band patterns as well as their insecticidal activity on xanthogaleruca luteola mull. larvae. forty six isolates (65.7%) conta ... | 2009 | 19631215 |