Table I.
Engineered abiotic stress tolerance: from ion transporters to transcription factors
| Gene Name | Gene Source | Transgenic Species | Intervention Method | Traits | Reference |
|---|---|---|---|---|---|
| Ion Transporters | |||||
| AtNHX1 (vacuolar Na+/H+ antiporter) | Arabidopsis | Arabidopsis | Overexpression | Salt tolerance | Apse et al. (1999) |
| AtNHX1 (vacuolar Na+/H+ antiporter) | Arabidopsis | B. napus | Overexpression | Salt tolerance | Zhang et al. (2001) |
| AtNHX1 (vacuolar Na+/H+ antiporter) | Arabidopsis | Tomato | Overexpression | Salt tolerance | Zhang and Blumwald (2001) |
| AtNHX1 (vacuolar Na+/H+ antiporter) | A. gmelini | Rice | Overexpression | Salt tolerance | Ohta et al. (2002) |
| SOS1 (plasma membrane Na+/H+ antiporter) | Arabidopsis | Arabidopsis | Overexpression | Salt tolerance | Shi et al. (2003) |
| AVP1 (vacuolar H+-ATPase) | Arabidopsis | Arabidopsis | Overexpression | Salt tolerance | Gaxiola et al. (2001) |
| HKT1 (high affinity K+ transporter) | Wheat | Wheat | Antisense | Salt tolerance | Laurie et al. (2002) |
| Transcription Factors | |||||
| CBF1, DREB1a (CBF3) | Arabidopsis | Arabidopsis | Overexpression | Freezing, salt, and drought tolerance | Jaglo-Ottosen et al. (1998); Liu et al. (1998); Haake et al. (2002) |
| CBF1, CBF2, CBF3 | Arabidopsis | B. napus | Overexpression | Freezing and drought tolerance | Jaglo et al. (2001); Mendel Biotechnology (unpublished data) |
| CBF1 | Arabidopsis | Tomato | Overexpression | Drought, chilling, and oxidative stress tolerance | Hsieh et al. (2002a, 2002b); Lee et al. (2003) |
| CBF1 | Arabidopsis | Strawberry | Overexpression | Freezing tolerance | Owens et al. (2002) |
| ZmCBF | Maize | Maize | Overexpression | Cold tolerance | Chaiappetta (2002) |
| DREB1a (CBF3) | Arabidopsis | Wheat | Overexpression | Drought tolerance | Pellegrineschi et al. (2002) |
| OsDREB1A | Rice | Arabidopsis | Overexpression | Drought, salt, and freezing tolerance | Dubouzet et al. (2003) |
| CBF3 | Arabidopsis | Rice | Overexpression | Stress tolerance | J. K. Kim (personal communication) |
| ICE1 | Arabidopsis | Arabidopsis | Overexpression | Freezing tolerance | Chinnusamy et al. (2003) |
| ABF3/4 | Arabidopsis | Arabidopsis | Overexpression | Drought tolerance | Kang et al. (2002) |
| Tsi1 | Tobacco | Tobacco | Overexpression | Salt tolerance | Park et al. (2001) |
| SCOF-1 | Soybean | Arabidopsis, Tobacco | Overexpression | Low temperature stress tolerance | Kim et al. (2001) |
| AtMYC2/AtMYB2 | Arabidopsis | Arabidopsis | Overexpression | Drought tolerance | Abe et al. (2003) |