摘要:
Methods and compositions for expressing a polynucleotide of interest are provided. Compositions comprise an enhancer domain set forth in SEQ ID NO: 1, 10, 15, or 16 and active variants and fragments thereof. Further provided are DNA constructs comprising at least one transcriptional enhancer sequence comprising the nucleotide sequence set forth in SEQ ID NO:1, 10, 15, or 16 or an active variant or fragment thereof, operably linked to a heterologous promoter. Such chimeric transcription regulatory regions can be operably linked any polynucleotide of interest. Further provided are cells, plants, plant parts, and germplasm comprising the DNA construct. Methods of using the chimeric transcriptional regulatory region are also provided. In specific embodiments, methods of expressing a polynucleotide of interest, including for example, sequences that confer tolerance to herbicides, and methods to select a cell having the DNA construct are provided.
摘要翻译:提供了表达感兴趣的多核苷酸的方法和组合物。 组合物包含SEQ ID NO:1,10,15或16所示的增强子结构域及其活性变体和片段。 还提供了包含至少一个转录增强子序列的DNA构建体,所述转录增强子序列包含可操作地连接到异源启动子的SEQ ID NO:1,0,15或16所示的核苷酸序列或其活性变体或片段。 这样的嵌合转录调控区域可以可操作地连接任何感兴趣的多核苷酸。 还提供了包含DNA构建体的细胞,植物,植物部分和种质。 还提供了使用嵌合转录调节区的方法。 在具体实施方案中,提供了表达目标多核苷酸的方法,包括例如赋予除草剂耐受性的序列,以及选择具有DNA构建体的细胞的方法。
摘要:
A superconducting material useful for forming electrolytic devices is made by establishing multiple niobium or tantalum components in a primary billet of a ductile material; working the primary billet through a series of reduction steps to form the niobium or tantalum components into elongated elements; cutting and restacking the resulting elongated elements with a porous confining layer to form a secondary billet, working the secondary billet through a series of reduction steps including twisting and final rolling to thin ribbon cross-sections with greater than 5:1 Aspect Ratios; cutting the resulting elongated billet into sections; and leaching the core and sheath at least in part.
摘要:
Compositions and methods for protecting a plant from an insect pest are provided. The invention provides mutagenized nucleic acids that have been engineered to encode pesticidal polypeptides having increased resistance to proteolytic degradation by a plant protease. In particular, nucleic acid sequences encoding pesticidal polypeptides modified to comprise a proteolytic protection site that confers resistance to degradation or proteolytic inactivation by a plant protease are provided. Particular embodiments of the invention provide pesticidal polypeptide compositions and formulations, expression cassettes, and transformed plants, plant cells, and seeds. These compositions find use in methods for controlling pests, especially plant pests. Novel plant proteases, sequences encoding these proteases, and methods for their use are also provided.
摘要:
The methods and compositions of the present invention find use in impacting microbial pathogens and in enhancing disease resistance to pathogens, particularly by plants. The compositions of the invention include polypeptides that possess antimicrobial properties, particularly fungicidal properties, and the encoding nucleic acid molecules. The polypeptides of the invention are isolated from the hemolymph and fat bodies of insect larvae induced by injection of plant pathogenic fungi. Further provided are plant cells, plants, and seed thereof, transformed with the nucleic acid molecules of the invention so as to confer disease resistance on the plant.
摘要:
The methods and compositions of the present invention find use in impacting microbial pathogens and in enhancing disease resistance to pathogens, particularly by plants. The compositions of the invention include polypeptides that possess antimicrobial properties, particularly fungicidal properties, and the encoding nucleic acid molecules. The polypeptides of the invention are isolated from the hemolymph and fat bodies of insect larvae induced by injection of plant pathogenic fungi. Further provided are plant cells, plants, and seed thereof, transformed with the nucleic acid molecules of the invention so as to confer disease resistance on the plant.
摘要:
A niobium-based superconductor is manufactured by establishing multiple niobium components in a billet of a ductile metal, working the composite billet through a series of reduction steps to form the niobium components into elongated elements, each niobium element having a thickness on the order of 1 to 25 microns, surrounding the billet prior to the last reduction step with a porous confining layer of an acid resistant metal, immersing the confined billet in an acid or a high temperature liquid metal to remove the ductile metal from between the niobium elements while the niobium elements remain confined by said porous layer, exposing the confined mass of niobium elements to a material capable of reacting with Nb to form a superconductor.
摘要:
A cordless system comprises a laptop computer with a modem connected to a modem data port on a cordless telephone handset. A direct sequence spread spectrum RF link is established between the cordless telephone handset and a base station. Both the telephone network and a desktop computer with a modem are connected to the base station. When the cordless telephone handset detects that the laptop computer wants to go off-hook, a selection signal is also sent by the cordless telephone handset to the base station to indicate whether the call is to be directed to the telephone network or the desktop computer. When the base station detects that the desktop computer wants to go off-hook, a selection signal is also sent by the desktop computer to the base station to indicate whether the call is to be directed to the telephone network or over the RF link to the laptop computer. Incoming calls from the telephone network are directed to the desktop computer by the base station with a ring indication going to the cordless telephone handset. If the laptop computer answers the ringing, the cordless telephone handset indicates an off-hook condition to the base station and the base station routes the incoming call over the RF link to the cordless telephone handset and the laptop computer.
摘要:
The present invention relates to metal filaments for use as fuel additives for rocket propellants, explosives, and other pyrotechnic devices. Preferred filaments are those such as zirconium, niobium and titanium (and alloys thereof) which have very high heat of combustion.
摘要:
The present invention relates to metal filaments for use as fuel additives for rocket propellants, explosives, and other pyrotechnic devices. Preferred filaments are those such as zirconium, niobium and titanium (and alloys thereof) which have very high heat of combustion.
摘要:
A method for producing a superconductor includes the steps of combining a plurality of metal bodies to form a composite structure, metal bodies being selected from transition metals such as niobium, tantalum, titanium, zirconium, hafnium and vanadium, alternate bodies being formed of different transition metals to form triplets. The transition metals are reacted to form a ductile superconducting ternary alloy at the interfaces of these triplets of metals. The extent of the reaction is limited so as to maintain areas of pure or nearly pure transition metal along with the superconducting ternary alloy in at least one of each triplet of transition metals.