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    • 1. 发明申请
    • Transgenic plants with increased calcium stores
    • 具有增加钙储存量的转基因植物
    • US20020083496A1
    • 2002-06-27
    • US09844006
    • 2001-04-30
    • Sarah WyattPei-Lan TsouDominique RobertsonWendy Boss
    • A01H005/00C12N015/82C12N005/14
    • C12N15/8242C12N15/8249C12N15/8261C12N15/8266C12N15/8271C12N15/8273C12N15/8274Y02A40/146
    • The present invention provides transgenic plants over-expressing a transgene encoding a calcium-binding protein or peptide (CaBP). Preferably, the CaBP is a calcium storage protein and over-expression thereof does not have undue adverse effects on calcium homeostasis or biochemical pathways that are regulated by calcium. In preferred embodiments, the CaBP is calreticulin (CRT) or calsequestrin. In more preferred embodiments, the CaBP is the C-domain of CRT, a fragment of the C-domain, or multimers of the foregoing. In other preferred embodiments, the CaBP is localized to the endoplasmic reticulum by operatively associating the transgene encoding the CaBP with an endoplasmic reticulum localization peptide. Alternatively, the CaBP is targeted to any other sub-cellular compartment that permits the calcium to be stored in a form that is biologically available to the plant. Also provided are methods of producing plants with desirable phenotypic traits by transformation of the plant with a transgene encoding a CaBP. Such phenotypic traits include increased calcium storage, enhanced resistance to calcium-limiting conditions, enhanced growth and viability, increased disease and stress resistance, enhanced flower and fruit production, reduced senescence, and a decreased need for fertilizer production. Further provided are plants with enhanced nutritional value as human food or animal feed.
    • 本发明提供过表达编码钙结合蛋白或肽(CaBP)的转基因的转基因植物。 优选地,CaBP是钙储存蛋白,并且其过度表达对钙调节的钙稳态或生化途径没有不利的不利影响。 在优选的实施方案中,CaBP是钙网蛋白(CRT)或钙蛋白酶。 在更优选的实施方案中,CaBP是CRT的C-结构域,C-结构域的片段或前述的多聚体。 在其它优选实施方案中,CaBP通过将编码CaBP的转基因与内质网定位肽有效结合而定位于内质网。 或者,CaBP靶向任何其他亚细胞区室,其允许钙以对植物生物学可用的形式存储。 还提供了通过用编码CaBP的转基因转化植物来产生具有期望表型性状的植物的方法。 这种表型性状包括增加钙储存,增强对钙限制条件的抵抗力,增强生长和活力,增加疾病和胁迫抗性,增强花和果实生产,减少衰老,减少对肥料生产的需求。 还提供了作为人类食物或动物饲料具有增强的营养价值的植物。
    • 3. 发明申请
    • Plant-optimized genes encoding pesticidal toxins
    • 植物优化的编码杀虫毒素的基因
    • US20010026940A1
    • 2001-10-04
    • US09826660
    • 2001-04-05
    • Guy A. CardineauSteven J. StelmanKenneth E. Narva
    • C12N015/82C12N005/14
    • C07K14/325C07K2319/00C12N15/8286Y02A40/162
    • The subject invention concerns materials and methods useful in the control of pests and, particularly, plant pests. More specifically, the subject invention provides plant-optimized, polynucleotide sequences that encode pesticidal toxins (full-length and truncated). Truncated polynucleotide sequences can be used to produce truncated toxins or for the production of fusion (or chimeric) genes and proteins. The polynucleotide sequences of the subject invention have certain modifications, compared to wild-type sequences, that make them particularly well-suited for optimized expression in plants. Using techniques known to those skilled in the art, the polynucleotide sequences described herein can be used to transform plants in order to confer pest resistance upon said plants. The subject invention further provides plant-optimized, polynucleotide sequences that encode C-terminal, protoxin portions that can be used with genes encoding truncated, core toxins to produce full-length toxins. In addition, the subject invention provides preferred amino acid sequences that are encoded by the plant-optimized polynucleotide sequences disclosed herein.
    • 本发明涉及可用于防治害虫,特别是植物害虫的材料和方法。 更具体地,本发明提供编码杀虫毒素(全长和截短的)的植物优化的多核苷酸序列。 截短的多核苷酸序列可用于产生截短的毒素或用于产生融合(或嵌合)基因和蛋白质。 与野生型序列相比,本发明的多核苷酸序列具有某些修饰,使得它们特别适合于在植物中优化表达。 使用本领域技术人员已知的技术,本文所述的多核苷酸序列可用于转化植物以赋予所述植物上的害虫抗性。 本发明进一步提供植物优化的编码C末端原毒素部分的多核苷酸序列,其可以与编码截短的核心毒素的基因一起使用以产生全长毒素。 此外,本发明提供了由本文公开的植物优化的多核苷酸序列编码的优选的氨基酸序列。
    • 6. 发明申请
    • DNA constructs comprising protease encoding sequences or inhibitors thereof
    • 包含蛋白酶编码序列或其抑制剂的DNA构建体
    • US20010049833A1
    • 2001-12-06
    • US09782982
    • 2001-02-14
    • Andrew James GreenlandDidier Rene Philippe ThomasIan Jepson
    • A01H005/00C12N015/82C12N005/14C12N005/16
    • C12N15/8249C12N9/50C12N15/8261Y02A40/146
    • Disclosed are isolated DNA constructs including (a) a first DNA sequence including either an inducible promoter sequence responsive to the presence or absence of an exogenous inducer or a developmental gene promoter capable of initiating gene expression in a selected tissue or at a selected stage of development of an organism; (b) a second DNA sequence including a DNA sequence coding for a protease enzyme operably linked and under the control of the promoter sequence specified at (a); whereby the presence or absence of the exogenous inducer or the activation of the developmental gene promoter specified at (a) results in expression of the protease enzyme. These constructs are preferably rendered reversible by the presence of further elements. These constructs can be used in plant or mammalian cells for disruption of cell function, controlling senescence and modifying the metabolism of stored proteins.
    • 公开了分离的DNA构建体,其包括(a)第一DNA序列,其包括对存在或不存在外源性诱导物的诱导型启动子序列或能够在选择的组织中或在选定的发育阶段启动基因表达的发育基因启动子 的生物体 (b)第二DNA序列,其包含编码可操作地连接并在(a)中指定的启动子序列控制下的蛋白酶的DNA序列; 由此外部诱导物的存在或不存在或(a)中规定的发育基因启动子的活化导致蛋白酶的表达。 这些构建体优选通过其它元素的存在而是可逆的。 这些构建体可用于植物或哺乳动物细胞破坏细胞功能,控制衰老和改变储存蛋白质的代谢。