[Expression of a partially modified delta-endotoxin gene from Bacillus thuringiensis var. tenebrionis in transgenic potato plants].
A modified gene (Bt77) of delta-endotoxin from Bacillus thuringiensis var. tenebrionis was constructed and cloned into pMON505. This binary transformation vector was introduced into Agrobacterium tumefaciens strains containing different helper disarmed Ti-plasmids, LBA4404, A281, and CBE21. These Agrobacterium strains were used to transform potato stem segments (S. tuberosum, cv Desiree, Resy, Temp, Granat). Regenerants were selected on kanamycin-containing media. The presence of the Bt77 sequence in plant genomic DNA was confirmed by PCR analysis. Bt gene expression was studied in regenerated plants. Western blot analysis revealed that transgenic plants produced the Bt protein in the range of 0.005-0.02% of total protein. Total protection against insect damage of leaf tissue from these plants was observed in laboratory bioassays with of Colorado beetle larvae. Transgenic plants showed incomplete protection from CB larvae.
Gulina
I V
IV
Shul'ga
O A
OA
Mironov
M V
MV
Revenkova
E V
EV
Kraev
A S
AS
Pozmogova
G E
GE
Iakovleva
G A
GA
Skriabin
K G
KG
D016960:Agrobacterium tumefaciens / Q000235:genetics; D001413:Bacillus thuringiensis / Q000235:genetics*; D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins / Q000235:genetics*; D001427:Bacterial Toxins; D001483:Base Sequence; D017931:DNA Primers; D004731:Endotoxins / Q000235:genetics*; D006460:Hemolysin Proteins; D008969:Molecular Sequence Data; D010572:Pest Control, Biological; D030821:Plants, Genetically Modified; D010957:Plasmids; D016133:Polymerase Chain Reaction; D011198:Solanum tuberosum / Q000235:genetics*; D014170:Transformation, Genetic
D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D001427:Bacterial Toxins; D017931:DNA Primers; D004731:Endotoxins; D006460:Hemolysin Proteins; C030956:insecticidal crystal protein, Bacillus Thuringiensis
Ekspressiia chastichno modifitsirovannogo gena delta-éndotoksina iz Bacillus thuringiensis var. tenebrionis v transgennykh rasteniiakh kartofelia.