Abstract:
Compositions and methods for controlling pests are provided. The methods involve transforming organisms with a nucleic acid sequence encoding an insecticidal protein. In particular, the nucleic acid sequences are useful for preparing plants and microorganisms that possess insecticidal activity. Thus, transformed bacteria, plants, plant cells, plant tissues and seeds are provided. Compositions are insecticidal nucleic acids and proteins of bacterial species. The sequences find use in the construction of expression vectors for subsequent transformation into organisms of interest including plants, as probes for the isolation of other homologous (or partially homologous) genes. The pesticidal proteins find use in controlling, inhibiting growth or killing Lepidopteran, Coleopteran, Dipteran, fungal, Hemipteran and nematode pest populations and for producing compositions with insecticidal activity.
Abstract:
The present invention relates to the construction and insertion of a DNA plasmid vector of broad spectrum for Gram-negative bacteria, that carries a gene sequence which, when expressed, enables the anchorage of a chelating protein for arsenic ions on the Gram-negative bacteria cellular surface. For that end, the structural sequence of the regulatory arsR gene without stop codon (SEQ ID N° 1 ) was amplified by Polymerase Chain Reaction (PCR) using as a template the chromosome 1 of Cupriavidus metallidurans, CH34 lineage and inserted into the pGEM-T cloning vector, yielding the pGEMT-As plasmid (SEQ ID N° 2). The expression vector containing the sequence encoding the cassette for the expression and anchoring of heterologous proteins in Gram-negative bacteria, under the control of the pan promoter (SEQ. ID N° 3), was obtained upon digestion of the pCM-Hg plasmid with Xbal and Sa/I restriction enzymes. The arsR gene was released from the pGEMT-As plasmid by digestion with Xba\ and Sa/I restriction enzymes and then ligated to the linearized expression vector, called pCM (SEQ. ID N° 4), resulting in the construction of the pCM-As plasmid (SEQ ID N° 5). Additionally, the present invention provides recombinant strains of Gram-negative bacteria containing said recombinant plasmid, method of production, use of the recombinant plasmid to enhance bacterial arsenic resistance and capability to adsorb arsenic ions, as well as the use of the transgenic strains for the adsorption of arsenic ions in environmental bioremediation processes, with the possibility of recovering the metalloid as a byproduct.
Abstract translation:本发明涉及用于革兰氏阴性细菌的广谱谱DNA质粒载体的构建和插入,其携带的基因序列当其表达时能够在革兰氏阴性细菌细胞上锚定螯合蛋白质用于砷离子 表面。 为此,通过聚合酶链式反应(PCR),使用Cupriavidus metallidurans的染色体1(CH34谱系)作为模板扩增了无终止密码子(SEQ ID NO:1)的调节性arsR基因的结构序列,并插入到pGEM- T克隆载体,得到pGEMT-As质粒(SEQ ID NO:2)。 在pCM-Hg质粒消化后,获得了含有编码用于在泛启动子控制下的革兰氏阴性细菌中表达和锚定异源蛋白的序列的表达载体(SEQ ID NO:3) XbaI和Sa / I限制酶。 通过用XbaI和Sa / I限制酶消化从pGEMT-As质粒释放arsR基因,然后连接到称为pCM(SEQ ID NO:4)的线性表达载体上,导致构建pCM- 作为质粒(SEQ ID NO.5)。 此外,本发明提供含有所述重组质粒,生产方法,重组质粒的使用以增强细菌耐砷性和吸附砷离子的能力的革兰氏阴性菌的重组菌株,以及将转基因菌株用于 吸附砷离子在环境生物修复过程中,有可能回收准金属作为副产物。
Abstract:
The present invention provides methods for the production of poly- beta -hydroxybutyrate, comprising the steps of (a) introducing into a prokaryotic host cell capable of metabolizing sucrose a vector construct which directs the expression of a sequence which encodes a poly- beta -hydroxybutyrate biosynthetic pathway, (b) culturing the host cell in medium containing sucrose, and (c) isolating poly- beta -hydroxybutyrate from the cultured host cell.
Abstract:
The invention relates to recombinant deoxyribonucleic acid (DNA) technology and, more particularly, to a process whereby polybetahydroxyalkanoate (PHA) copolymers can be synthesized in a recombinant host strain containing the poly-beta-hydroxybutyrate (PHB) biosynthetic genes of Alcaligenes eutrophus.
Abstract:
The present invention relates to the construction and insertion of a DNA plasmid vector of broad spectrum for Gram-negative bacteria, that carries a gene sequence which, when expressed, enables the anchorage of a chelating protein for arsenic ions on the Gram-negative bacteria cellular surface. For that end, the structural sequence of the regulatory arsR gene without stop codon (SEQ ID N° 1 ) was amplified by Polymerase Chain Reaction (PCR) using as a template the chromosome 1 of Cupriavidus metallidurans , CH34 lineage and inserted into the pGEM-T cloning vector, yielding the pGEMT-As plasmid (SEQ ID N° 2). The expression vector containing the sequence encoding the cassette for the expression and anchoring of heterologous proteins in Gram-negative bacteria, under the control of the pan promoter (SEQ. ID N° 3), was obtained upon digestion of the pCM-Hg plasmid with Xbal and Sa/I restriction enzymes. The arsR gene was released from the pGEMT-As plasmid by digestion with Xba\ and Sa/I restriction enzymes and then ligated to the linearized expression vector, called pCM (SEQ. ID N° 4), resulting in the construction of the pCM-As plasmid (SEQ ID N° 5). Additionally, the present invention provides recombinant strains of Gram-negative bacteria containing said recombinant plasmid, method of production, use of the recombinant plasmid to enhance bacterial arsenic resistance and capability to adsorb arsenic ions, as well as the use of the transgenic strains for the adsorption of arsenic ions in environmental bioremediation processes, with the possibility of recovering the metalloid as a byproduct.
Abstract translation:本发明涉及用于革兰氏阴性细菌的广谱谱DNA质粒载体的构建和插入,其携带的基因序列当其表达时能够在革兰氏阴性细菌细胞上锚定螯合蛋白质用于砷离子 表面。 为此,通过聚合酶链式反应(PCR),使用Cupriavidus metallidurans的染色体1(CH34谱系)作为模板扩增了无终止密码子(SEQ ID NO:1)的调节性arsR基因的结构序列,并插入到pGEM- T克隆载体,得到pGEMT-As质粒(SEQ ID NO:2)。 在pCM-Hg质粒消化后,获得了含有编码用于在泛启动子控制下的革兰氏阴性细菌中表达和锚定异源蛋白的序列的表达载体(SEQ ID NO:3) XbaI和Sa / I限制酶。 通过用XbaI和Sa / I限制酶消化从pGEMT-As质粒释放arsR基因,然后连接到称为pCM(SEQ ID NO:4)的线性表达载体上,导致构建pCM- 作为质粒(SEQ ID NO.5)。 此外,本发明提供含有所述重组质粒,生产方法,重组质粒的使用以增强细菌耐砷性和吸附砷离子的能力的革兰氏阴性菌的重组菌株,以及将转基因菌株用于 吸附砷离子在环境生物修复过程中,有可能回收准金属作为副产物。
Abstract:
The present invention discloses methods and materials for delivering a cargo compound into a cancer cell. Delivery of the cargo compound is accomplished by the use of protein transduction domains derived from cupredoxins. The cargo compound may be a nucleic acid and specifically a DNA, RNA or anti-sense. The invention further discloses methods for treating cancer and diagnosing cancer.
Abstract:
The present invention discloses methods and materials for delivering a cargo compound into a cancer cell. Delivery of the cargo compound is accomplished by the use of protein transduction domains derived from cupredoxins. The cargo compound may be a nucleic acid and specifically a DNA, RNA or anti-sense. The invention further discloses methods for treating cancer and diagnosing cancer.
Abstract:
A method of substantially reducing or inhibiting the development of leaf scald disease in a plant or stalk thereof, said method comprising the step of administering an albicidin detoxification enzyme to the plant or stalk thereof. There is also provided a method of generating a transgenic plant substantially resistant to albicidin and leaf scald disease including the steps of introducing and expressing a nucleotide sequence encoding albicidin detoxification enzyme into a plant, plant part or plant cell, and growing the plant, plant part or plant cell to generate the transgenic plant. There is further provided a method of substantially reducing or inhibiting the development of leaf scald disease in a plant or stalk thereof, said method comprising the step of administering to the plant or stalk thereof a bacterium which extracellularly produces albicidin detoxification enzyme. There is further provided an isolated albicidin detoxification enzyme capable of irreversibly inactivating albicidin as well as an isolated nucleotide sequence encoding an albicidin detoxification enzyme.
Abstract:
A microbial fertilizer that constitutes a symbiotic association of several recombinant microbial species is described. The fertilizer contains four streptomyces strains (5 and 8) and two yeast strains (H4 (1) and H7 (3)). The streptomyces strains include a nitrogen fixing strain, a phosphorus decomposer, a potassium decomposer and a coal waste decomposer. The yeast strains produce growth factors and energy required by the streptomyces.