Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression
Genetic engineering is a powerful tool for the improvement of plant traits. Despite reported successes in the plant kingdom, this technology has barely scratched the surface of the Melastomataceae family. Limited studies have led to some optimisation of parameters known to affect the transformation...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Sains Malaysia
2010
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/14522/ http://psasir.upm.edu.my/id/eprint/14522/1/Enhancers%20of%20agrobacterium.pdf |
| _version_ | 1848842416907354112 |
|---|---|
| author | Yong, Wilson Thau Lym Henry, Erle Stanley Abdullah, Janna Ong |
| author_facet | Yong, Wilson Thau Lym Henry, Erle Stanley Abdullah, Janna Ong |
| author_sort | Yong, Wilson Thau Lym |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Genetic engineering is a powerful tool for the improvement of plant traits. Despite reported successes in the plant kingdom, this technology has barely scratched the surface of the Melastomataceae family. Limited studies have led to some optimisation of parameters known to affect the transformation efficiency of these plants. The major finding of this study was to optimise the presence of selected enhancers (e.g., monosaccharides (D-glucose, D-galactose and D-fructose), tyrosine, aluminium chloride and ascorbic acid) to improve the transformation efficiency of Tibouchina semidecandra. Agrobacterium tumefaciens strain LBA4404 harbouring the disarmed plasmid pCAMBIA1304 was used to transform shoots and nodes of T. semidecandra. Different concentrations of the transformation enhancers were tested by using GFP as a reporter. The results obtained were based on the percentage of GFP expression, which was observed 14 days post-transformation. A combination of 120 μM galactose and 100 μM tyrosine supplemented with 600 μM aluminium chloride in the presence of 15 mg/L ascorbic acid gave the highest percentage of positive transformants for T. semidecandra shoots. Whereas 60 μM galactose and 50 μM tyrosine with 200 μM aluminium chloride in the presence of 15 mg/L ascorbic acid was optimum for T. semidecandra nodes. The presence of the hptII transgene in the genomic DNA of putative T. semidecandra transformants was verified by PCR amplification with specific primers. |
| first_indexed | 2025-11-15T07:58:48Z |
| format | Article |
| id | upm-14522 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:58:48Z |
| publishDate | 2010 |
| publisher | Penerbit Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-145222017-04-13T08:08:38Z http://psasir.upm.edu.my/id/eprint/14522/ Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression Yong, Wilson Thau Lym Henry, Erle Stanley Abdullah, Janna Ong Genetic engineering is a powerful tool for the improvement of plant traits. Despite reported successes in the plant kingdom, this technology has barely scratched the surface of the Melastomataceae family. Limited studies have led to some optimisation of parameters known to affect the transformation efficiency of these plants. The major finding of this study was to optimise the presence of selected enhancers (e.g., monosaccharides (D-glucose, D-galactose and D-fructose), tyrosine, aluminium chloride and ascorbic acid) to improve the transformation efficiency of Tibouchina semidecandra. Agrobacterium tumefaciens strain LBA4404 harbouring the disarmed plasmid pCAMBIA1304 was used to transform shoots and nodes of T. semidecandra. Different concentrations of the transformation enhancers were tested by using GFP as a reporter. The results obtained were based on the percentage of GFP expression, which was observed 14 days post-transformation. A combination of 120 μM galactose and 100 μM tyrosine supplemented with 600 μM aluminium chloride in the presence of 15 mg/L ascorbic acid gave the highest percentage of positive transformants for T. semidecandra shoots. Whereas 60 μM galactose and 50 μM tyrosine with 200 μM aluminium chloride in the presence of 15 mg/L ascorbic acid was optimum for T. semidecandra nodes. The presence of the hptII transgene in the genomic DNA of putative T. semidecandra transformants was verified by PCR amplification with specific primers. Penerbit Universiti Sains Malaysia 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/14522/1/Enhancers%20of%20agrobacterium.pdf Yong, Wilson Thau Lym and Henry, Erle Stanley and Abdullah, Janna Ong (2010) Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression. Tropical Life Sciences Research, 21 (2). pp. 115-130. ISSN 1985-3718; ESSN: 2180-4249 http://www.tlsr.usm.my/TLSRvol21no2.html |
| spellingShingle | Yong, Wilson Thau Lym Henry, Erle Stanley Abdullah, Janna Ong Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression |
| title | Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression |
| title_full | Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression |
| title_fullStr | Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression |
| title_full_unstemmed | Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression |
| title_short | Enhancers of agrobacterium-mediated transformation of Tibouchina semidecandra selected on the basis of GFP expression |
| title_sort | enhancers of agrobacterium-mediated transformation of tibouchina semidecandra selected on the basis of gfp expression |
| url | http://psasir.upm.edu.my/id/eprint/14522/ http://psasir.upm.edu.my/id/eprint/14522/ http://psasir.upm.edu.my/id/eprint/14522/1/Enhancers%20of%20agrobacterium.pdf |