A Quick Overview of Agrobacterium for Plant Transformation
Agrobacterium is nature’s genetic engineer. This bacterium has the ability to transfer a part of its...
GoldBio’s EHA105 ElectroCompetent Agrobacterium cells allow you to obtain high transformation efficiency in applications such as gDNA or cDNA library construction. Our EHA105 strain contains a rifampicin resistance gene (rif) and an amber basic Ti plasmid pEHA105 (pTiBo542DT-DNA) without self-transport function, containing the vir gene. EHA105 is ideal for genetic transformation of rice, tobacco and several other plants.
GoldBio’s EHA105 Agrobacterium strain was generated, and primary clone supplied by Dr. Elizabeth Hood.
Kit Components
Competent cell type: ElectroCompetent
Species: A. tumefaciens
Strain: EHA105
Transformation efficiency: ≥1.6 x 108 cfu/µg pCAMBIA1391z DNA
Blue/white screening: No
Storage/Handling: This product may be shipped on dry ice. EHA105 Agrobacterium Electrocompetent cells should be stored at -80°C, pCAMBIA1391z Control DNA should be stored at -20°C and recovery medium should be stored at 4°C immediately upon arrival. When stored under the recommended conditions and handled correctly, these products should be stable for at least 1 year from the date of receipt.
Genomic Features
Reagents Needed for One Reaction
Table 1: Antibiotic disc sensitivity for GoldBio’s Agrobacterium strains (using standard BD antibiotic discs)
Antibiotic Selection |
||||||||||
Amp |
Carb |
Chlor |
Gent |
Kan |
Rif |
Spect |
Strep |
Tet |
||
100 |
100 |
30 |
100 |
30 |
50 |
25 |
50 |
50 |
50 |
|
GV3101 |
I |
R |
R |
PR |
R |
S |
R |
S |
R |
S |
EHA105 |
R |
R/S |
R |
n/a |
R/S |
S |
R |
S |
R |
S |
LBA4404 |
S |
S |
S |
n/a |
S |
S |
R |
S |
R |
S |
AGL-1 |
R |
R |
R |
n/a |
R/S |
S |
R |
S |
R |
S |
C58C1 |
R |
R |
R |
n/a |
R/S |
S |
R |
S |
R |
S |
S = Sensitive |
Quality Control
Transformation efficiency is tested by using the pCAMBIA1391z control DNA supplied with the kit and using the protocol given below. Transformation efficiency should be ≥1.6 x 108 CFU/µg pCAMBIA1391z DNA. Untransformed cells are tested for appropriate antibiotic sensitivity.
General Guidelines
Note: A high-voltage electroporation apparatus capable of generating field strengths of 16 kV/cm is required.
Calculation of Transformation Efficiency
Transformation Efficiency (TE) is defined as the number of colony forming units (cfu) produced by transforming 1 µg of plasmid into a given volume of competent cells.
Example: Transform 1 µl of (10 pg/µl) control plasmid into 25 µl of cells, add 975 µl of Recovery Medium. Dilute 10 µl of this in 990 µl of Recovery Medium and plate 50 µl. Count the colonies on the plate the next day. If you count 250 colonies, the TE is calculated as follows:
Colonies = 250
µg of DNA = 0.00001
Dilution = 10/1000 x 50/1000 = 0.0005
TE = 250/0.00001/0.0005 = 5.0 × 1010
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CC-207-10x50 In stock | 10 x 50 μL |
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CC-208-5x50 In stock | 5 x 50 μL |
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CC-220-5x50 In stock | 5 x 50 μL |
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CC-220-10x50 In stock | 10 x 50 μL |
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CC-225-15x50 In stock | 15 x 50 μL |
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