Plants with genetic female sterility
    2.
    发明授权
    Plants with genetic female sterility 失效
    具有遗传雌性不育的植物

    公开(公告)号:US5633441A

    公开(公告)日:1997-05-27

    申请号:US361467

    申请日:1994-12-22

    摘要: The invention concerns female-sterile plants that comprise a foreign DNA incorporated in the nuclear genome of their cells. This foreign DNA first comprises a female-sterility DNA encoding a protein or polypeptide such as barnase which, when produced in the cells of the plant, kills or significantly disturbs the metabolism, functioning or development of the cells. The foreign DNA also comprises a first promoter which directs expression of the female-sterility DNA selectively in style cells, stigma cells or style-and stigma cells of the female reproductive organs of the plants. The first promoter does not direct detectable expression of the female sterility DNA in the ovule or in other parts of the plant so that the plant remains male-fertile. The female-sterility DNA is in the same transcriptional unit as and under the control of the first promoter.

    摘要翻译: 本发明涉及包含掺入其细胞的核基因组中的外来DNA的雌性不育植物。 该外源DNA首先包含编码蛋白质或多肽(如芽孢杆菌RNA酶)的雌性不育DNA,当在植物细胞中产生时,它们杀死或显着地干扰细胞的代谢,功能或发育。 外源DNA还包含第一启动子,其指导雌性不育DNA在植物的雌性生殖器官的样式细胞,柱头细胞或样式和柱头细胞中的表达。 第一个启动子不能引导雌性不育DNA在胚珠或植物的其他部分中的可检测的表达,使得植物保持雄性可育。 雌性不育DNA与第一启动子处于相同的转录单位和控制下。

    DNA coding for a Mg2+/H+ or Zn2+/H+ exchanger and transgenic plants expressing same
    5.
    发明授权
    DNA coding for a Mg2+/H+ or Zn2+/H+ exchanger and transgenic plants expressing same 失效
    编码Mg2 + / H +或Zn2 + / H +交换体的DNA和表达相同的转基因植物

    公开(公告)号:US06677506B1

    公开(公告)日:2004-01-13

    申请号:US09701068

    申请日:2000-11-24

    IPC分类号: A01H500

    CPC分类号: C12N15/8273 C07K14/415

    摘要: 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.

    摘要翻译: 提供分离的DNA分子,其编码具有Mg 2+ / H 2+或Zn 2+ 2+ / H +交换活性的11-12跨膜结构域转运蛋白家族的多肽,这里称为MHX。 从拟南芥cv。中分离出基因组MHX DNA。 C-24。 与相应的野生型植物相比,用所述DNA转化并表达MHX的转基因植物显示与相应的野生型植物相比具有较低的钠含量或较富钙培养基生长时更高的干物质重量。 这些转基因植物耐受胁迫条件,特别是高盐度和富含钙的培养基,例如, 盐水和钙质土壤。