DNA coding for a Mg2+/H+ or Zn2+/H+ exchanger and transgenic plants expressing same
US6677506B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 24, 2000 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Nov 24, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K14/415
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
An isolated DNA molecule is provided coding for a polypeptide of the 11-12 transmembrane domain transporter family having a Mg2+/H+ or Zn2+/H+ exchange activity, herein designated MHX. The genomic MHX DNA was isolated from Arabidopsis thaliana cv. C-24. Transgenic plants transformed with said DNA and expressing MHX are shown to have a lower content of sodium as compared with corresponding wild-type plants or a higher dry matter weight upon growth in calcium-rich media as compared with corresponding wild-type plants. These transgenic plants are tolerant to stress conditions, particularly high salinity and calcium-rich media, e.g. saline and calcareous soils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.