摘要:
It is intended to provide a gene encoding a protein having an activity of improving a tolerance to an environmental stress such as salt, moisture, or heat stress, in particular, a tolerance to water stress; a protein having an activity of improving a tolerance to an environmental stress; a transgenic plant having an enhanced tolerance to an environmental stress, and so on. A halophyte Salicornia europaea, which has a strong activity of improving a tolerance to water stress and can grow even in a dry area with much salt accumulation, was used to search genes participating in the salt tolerance of Salicornia europaea by a functional screening method using an Escherichia coli gene expression system, with the aim of isolating genes (cDNAs) participating in the salt-tolerance mechanism of Salicornia europaea. As a result, it was found out that an arabinogalactan protein consisting of 427 amino acids and having partial homology to a Fasciclin-like arabinogalactan protein of Arabidopsis thaliana has a function of enhancing salt tolerance, water stress tolerance (sorbitol tolerance), and heat tolerance.
摘要:
The invention provides novel, carrot-derived MITE-like elements (transposable elements). It further provides transcriptional activation elements comprising at least one transposable element, in particular one of the above MITE-like elements. Specifically, it provides transcriptional activation elements having a DNA comprising the nucleotide sequence shown under SEQ ID NO:1 or a functional equivalent thereto and/or a DNA comprising the nucleotide sequence shown under SEQ ID NO:2 or a functional equivalent thereto. The transcriptional activation elements of the invention can increase or activate the reduced expression of a foreign gene introduced by the transgenic technology. Therefore, the transcriptional activation elements contribute to stable expression of a foreign gene introduced in a plant genome and are useful in stably producing genetically modified plants.
摘要翻译:本发明提供了新颖的,由胡萝卜衍生的MITE样元件(转座元件)。 其进一步提供转录激活元件,其包含至少一个转座元件,特别是上述MITE样元件之一。 具体地说,它提供具有包含SEQ ID NO:1所示核苷酸序列或其功能等同物的DNA的转录激活元件和/或包含SEQ ID NO:2所示核苷酸序列或其功能等同物的DNA。 本发明的转录激活元件可以增加或激活由转基因技术引入的外源基因的降低的表达。 因此,转录激活元件有助于在植物基因组中引入的外源基因的稳定表达,并且可用于稳定生产转基因植物。
摘要:
An Fe--Ni alloy for use as a part 10 of an electron-gun 4 is press-blanked by a punch to form minute apertures 10a, 10b, 10c for passing an electron beam 3. The burrs 10 formed around the minute apertures 10a, 10b, 10c are detrimental to such part 4. The Fe--Ni alloy according to the present invention essentially consists of from 30 to 55 wt % of Ni, not more than 0.5 wt % of Si, not more than 1.5 wt % of Mn, and the balance being Fe and unavoidable impurities. The alloy includes from 10 to 1,000 of A type or B type non-metallic inclusions of 10 .mu.m or more in length per 1 mm.sup.2 of longitudinal cross section, and from 100 to 50,000 of C type non-metallic inclusions having a diameter of 5 .mu.m or less.
摘要:
An object of the present invention is to provide a sugar donating reagent comprising a sugar donor compound other than a sugar nucleotide and an enzyme capable of catalyzing a glycosyl transfer reaction using a sugar donor compound other than a sugar nucleotide. The present invention provides the following: a sugar donating reagent containing a compound of formula (A): wherein R1 is independently selected from hydrogen, or C1-6 alkyl, C2-6 alkenyl, and C2-6 alkynyl in which each of the groups is unsubstituted or substituted with one or more groups selected from OH, F, Cl, Br, I, CN, NO2, and SO2, n is 0, 1, 2, 3, 4 or 5, m is 0 or 1, and X represents a monosaccharide bound via a β bond on its anomeric carbon; a glycosyltransferase capable of catalyzing a glycosyl transfer reaction using the sugar donor; and a glycosyltransferase gene comprising DNA encoding the glycosyltransferase.
摘要:
Both end portions in an axial direction of a hub 8b are supported by a supporting portion of a working apparatus rotatably centering on a center axis of the hub 8b and in a state of restraining a displacement thereof in a radial direction. Further, before removing the hub 8b from the supporting portion from the state, an outer side face 28 of an attaching flange 13 and a first inner ring track 14 are worked to predetermined shapes. Thereby, judder in braking is prevented from being brought about by promoting a perpendicularity of the outer side face 28 of the attaching flange 13 provided to the hub 8b relative to a rotational center of the hub 8b and restraining a deflection of a rotor coupled to fix to the outer side face 28.
摘要:
There is provided a nucleic acid extraction method applicable to microbes in a relatively wide range, and capable of rapidly extracting nucleic acid. The nucleic acid extraction method comprises the steps of introducing a cell suspension into a vessel, sealing the vessel, and preheating a heater up to a set temperature not lower than 100° C. Further, the method comprises the step of bringing the vessel into contact with the heater heated up to the set temperature, thereby heating the cell suspension housed in the vessel up to a prescribed highest temperature at not lower than 100° C. with the vessel held in a sealed state.
摘要:
There is provided a nucleic acid extraction method applicable to microbes in a relatively wide range, and capable of rapidly extracting nucleic acid. The nucleic acid extraction method comprises the steps of introducing a cell suspension into a vessel, sealing the vessel, and preheating a heater up to a set temperature not lower than 100° C. Further, the method comprises the step of bringing the vessel into contact with the heater heated up to the set temperature, thereby heating the cell suspension housed in the vessel up to a prescribed highest temperature at not lower than 100° C. with the vessel held in a sealed state.
摘要:
It is intended to provide a gene encoding a protein having an activity of improving a tolerance to an environmental stress such as salt, moisture, or heat stress, in particular, a tolerance to water stress; a protein having an activity of improving a tolerance to an environmental stress; a transgenic plant having an enhanced tolerance to an environmental stress, and so on. A halophyte Salicornia europaea, which has a strong activity of improving a tolerance to water stress and can grow even in a dry area with much salt accumulation, was used to search genes participating in the salt tolerance of Salicornia europaea by a functional screening method using an Escherichia coli gene expression system, with the aim of isolating genes (cDNAs) participating in the salt-tolerance mechanism of Salicornia europaea. As a result, it was found out that an arabinogalactan protein consisting of 427 amino acids and having partial homology to a Fasciclin-like arabinogalactan protein of Arabidopsis thaliana has a function of enhancing salt tolerance, water stress tolerance (sorbitol tolerance), and heat tolerance.
摘要:
The present invention relates to isolated DNA sequences from halophytes encoding proteins for improving tolerance to environmental stresses in plants. The invention also relates to vectors comprising the polynucleotides, and transformed host cells, and plants with improved environmental stress tolerance.
摘要:
A punched part consists of an Fe--Cr--Ni alloy essentially consisting of from 15 to 20% of Cr, from 9 to 15% of Ni, from 0.001 to 0.0050% of S, the balance being Fe and unavoidable impurities. The burrs formed during punching are suppressed due to addition of S to the Fe--Cr--Ni alloy.