Abstract:
First, monochromatic near infrared light in a wavelength range of 700nm - 1100nm from the slit of the near infrared apparatus (1) is applied to a reference ceramic plate through the optical fiber (7) to measure a transmitted light intensity of the ceramic plate which is a reference material for spectrum measurement. Next, in place of the ceramic plate, the test tube (4) containing a liquid sample of which the temperature has been adjusted at a predetermined temperature by a water bath and the like is inserted into the housing portion (5). The transmitted light intensity of the liquid sample is then measured using the same procedure as above. A so-called near infrared absorption spectrum in which absorbance has been plotted against wavelengths is displayed on the screen of the computer (2). Information about each object characteristic is extracted from the spectrum data using a calibration equation.
Abstract:
Provided are a human immunocompetent fused cell line, characterized in that the mutant cell line ICLU-B derived from the human Burkitt lymphoma cell line Raji, ICLU-T derived from human T-cell lymphocytic leukemia cell line PEER, or ICLU-E derived from the human eosinophilic leukemia cell line EoL-1 is used as a parental cell line, wherein said mutant cell line is obtained by selecting an 8-azaguanine- or 6-thioguanine-resistant clone from said Burkitt lymphoma, said T-cell lymphocytic leukemia and said eosinophilic leukemia cell line, respectively, and said clone is treated in order to render it capable of growing in serum-free medium, and a method of obtaining said human immunocompetent fused cell line. The human immunocompetent fused cell line obtained by the present invention can be used to investigate food functions, novel drugs and the production thereof with the view to the elucidation of mechanisms of phenomena of the immune system such as allergies, cancers and the like, and the prevention, diagnosis and therapy of such diseases.
Abstract:
According to the present invention, there is provided a method and an apparatus for efficiently manufacturing microspheres having a uniform particle diameter. The apparatus is as follows: the case (1) comprises the lower body (1a) and the upper body (1b). A seal ring (3), a first plate (4) which is comprised of a transparent plate such as a glass plate or a plastic plate, an annular spacer (5), an intermediate plate (6) which is comprised of a silicon substrate or the like, an annular spacer (7), a second plate (8) and a seal ring (9) are inserted in this order into a concave portion (2) formed in the lower body (1a). The upper body (1b) is superposed thereon. Further, the upper body (1b) is attached to the lower body (1a) with bolts or the like.
Abstract:
The present inventors successfully isolated a photoperiod sensitivity gene Hd1 from rice by a linkage analysis. It was revealed that the photoperiod sensitivity of plants can be modified by introducing the gene or controlling the expression of the gene. Further, it was demonstrated that the photoperiod sensitivity of plants can be assessed by detecting the presence or absence of the functional gene.
Abstract:
Provided are a human immunocompetent fused cell line, characterized in that the mutant cell line ICLU-B derived from the human Burkitt lymphoma cell line Raji, ICLU-T derived from human T-cell lymphocytic leukemia cell line PEER, or ICLU-E derived from the human eosinophilic leukemia cell line EoL-1 is used as a parental cell line, wherein said mutant cell line is obtained by selecting an 8-azaguanine- or 6-thioguanine-resistant clone from said Burkitt lymphoma, said T-cell lymphocytic leukemia and said eosinophilic leukemia cell line, respectively, and said clone is treated in order to render it capable of growing in serum-free medium, and a method of obtaining said human immunocompetent fused cell line. The human immunocompetent fused cell line obtained by the present invention can be used to investigate food functions, novel drugs and the production thereof with the view to the elucidation of mechanisms of phenomena of the immune system such as allergies, cancers and the like, and the prevention, diagnosis and therapy of such diseases.
Abstract:
An object of the present invention is to clone a gene which is involved in synthesis of fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bone at position Δ12. The present invention provides a gene having any one of the following nucleotide sequences:
(A) a nucleotide sequence encoding an amino acid sequence shown in SEQ ID NO: 1 or 12; (B) a nucleotide sequence encoding an amino acid sequence comprising a deletion, addition or substitution of one or several amino acids with respect to the amino acid sequence shown in SEQ NO: 1 or 12, and having an ability of synthesizing fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bond at position Δ12; (C) a nucleotide sequence shown in SEQ ID NO: 2 or 13; (D) a nucleotide sequence comprising a deletion, addition or substitution of one or several nucleotides with respect to the nucleotide sequence shown in SEQ ID NO: 2 or 13, and encoding a protein having an ability of synthesizing fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bond at position Δ12; and (E) a nucleotide sequence hybridizing with the nucleotide sequence shown in SEQ ID NO: 2 or 13 or a complementary sequence thereof under stringent conditions, and encoding a protein having an ability of synthesizing fatty acid having trans-11-, cis-13-conjugated double bonds from fatty acid having a double bond at position Δ12.
Abstract:
cDNAs (RISBZ1, RISBZ4, and RISBZ5) encoding bZIP transcription factors were isolated from a cDNA library originating in rice plant seed. The cDNAs encode novel proteins and have binding activity to the GCN4 motif. Among them, RISBZ1 activated transcription mediated by the GCN4 motif by 100-fold or more. Since the expression of RISBZ1 precedes the expression of a seed storage protein gene and is expressed only in maturing seeds, it is suggested that RISBZ1 controls the expression of rice seed storage proteins. In addition, by linking the recognition sequence of the transcription factor, the GCN4 motif, in tandem and introducing it into the promoter for a gene encoding seed storage protein to facilitate its binding to the transcription factor RISBZ1, expression of a foreign gene under the control of the modified promoters is greatly enhanced.
Abstract:
Provided is a DNA-level rice palatability evaluation method of using a very small quantity of rice, especially a half or one grain of rice as a sample. This is to evaluate the palatability of rice, not disrupting the embryo of a rice grain that is to be the origin of a rice plant of the coming generation, and to select palatable rice. The method comprises amplifying the DNA extracted from a rice plant, unhulled rice, unpolished rice, polished rice, boiled rice, rice cake or ground powder thereof through PCR in the presence of an STS primer or a random primer, selecting DNA bands of close correlation with palatability evaluation from the resulting amplified DNA bands, and using it as a DNA marker for palatability evaluation to select palatable rice.
Abstract:
Provided is a DNA-level rice palatability evaluation method of using a very small quantity of rice, especially a half or one grain of rice as a sample. This is to evaluate the palatability of rice, not disrupting the embryo of a rice grain that is to be the origin of a rice plant of the coming generation, and to select palatable rice. The method comprises amplifying the DNA extracted from a rice plant, unhulled rice, unpolished rice, polished rice, boiled rice, rice cake or ground powder thereof through PCR in the presence of an STS primer or a random primer, selecting DNA bands of close correlation with palatability evaluation from the resulting amplified DNA bands, and using it as a DNA marker for palatability evaluation to select palatable rice.