Title |
Expression of a Codon-Optimized dsdA Gene in Tobacco Plastids and Rice Nucleus Confers D-Serine Tolerance
|
---|---|
Published in |
Frontiers in Plant Science, May 2016
|
DOI | 10.3389/fpls.2016.00640 |
Pubmed ID | |
Authors |
Yanmei Li, Rui Wang, Zongliang Hu, Hongcai Li, Shizhan Lu, Juanjuan Zhang, Yongjun Lin, Fei Zhou |
Abstract |
D-serine is toxic to plants. D-serine ammonia lyase, which is encoded by the dsdA gene, can attenuate this toxicity with high specificity. In the present study, we explored the function of codon-optimized dsdA with tobacco plastids and rice nuclear transformation system. It was shown that dsdA gene was site-specifically integrated into the tobacco plastid genome and displayed a high level of expression. Genetic analysis of the progenies showed that dsdA gene is maternally inherited and confers sufficient D-serine resistance in tobacco. The effective screening concentrations of D-serine for seed germination, callus regeneration and foliar spray were 10, 30, and 75 mM, respectively. In addition, calluses from homozygous transgenic rice lines also showed significant tolerance to D-serine (up to 75 mM). Our study proves the feasibility of using dsdA gene as a selectable marker in both plastid and nuclear transformation systems. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Switzerland | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Switzerland | 1 | 7% |
Unknown | 14 | 93% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 5 | 33% |
Student > Master | 3 | 20% |
Student > Doctoral Student | 2 | 13% |
Student > Bachelor | 2 | 13% |
Student > Ph. D. Student | 1 | 7% |
Other | 2 | 13% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 11 | 73% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 7% |
Biochemistry, Genetics and Molecular Biology | 1 | 7% |
Psychology | 1 | 7% |
Unknown | 1 | 7% |