80 results about "Embryo tissue" patented technology

A globulin-1 regulatory region is shown, a nucleotide sequence of approximately 3 kb which provides improved seed preferred, and particularly embryo preferred expression in plants. Methods of use are also shown in preferentially expressing a heterologous protein to the embryo tissue of a plant. The sequence is particularly useful in expression of heterologous proteins to the embryo of monocotyledonous plants, particularly cereals, and maize.

A regulatory region is shown, a nucleotide sequence of approximately 3kb which provides improved seed preferred, and particularly embryo preferred expression in plants. Methods of use are also shown in preferentially expressing a heterologous protein to the embryo tissue of a plant. The sequence is particularly useful in expression of heterologous proteins to the embryo of monocotyledonous plants, particularly cereals, and maize.

A globulin-2 regulatory region is shown, which provides improved seed preferred, and particularly embryo preferred expression in plants. Methods of use are also shown in preferentially expressing a heterologous protein to the embryo tissue of a plant. The sequence is particularly useful in expression of heterologous proteins to the embryo of monocotyledonous plants, particularly cereals, and maize.

The invention discloses a direct-vision induced abortion uterine curettage device. The device comprises a uterine curettage mechanism, an observation mechanism, a circuit, a negative pressure suctionmechanism and an operation rod. A curettage device of the uterine curettage mechanism is arranged at the front ends of the operation rod and a camera and located in the view of the camera. According to the technical scheme that the camera is arranged on the rear portion, the curettage device is completely located in the view of the camera, the whole operation process can be visible, and no observation dead zone exists. Meanwhile, the curettage device cannot have operation dead corners due to shielding generated by the height of a lens module, embryo tissue can be completely removed when implanted at any position of the uterus, especially for the implantation position near the fallopian tube orifice, namely the bottom of the uterus, the curettage device can easily remove the embryo tissue,and the clinical use process is safer and more efficient. A direct-vision induced abortion uterine curettage system comprises the direct-vision induced abortion uterine curettage device, operation canbe carried out under real-time display of a display system, and the induced abortion operation process is very accurate, safe and efficient.

The invention discloses a method for keeping the integrity of embryos in early embryo tissue immunohistochemistry, and belongs to the technical field of animals and organisms. A polyvinylpyrrolidone solution is added to a phosphate buffer solution, paraformaldehyde, Triton X-100 and hydrogen peroxide which are used for the early embryo tissue immunohistochemistry to prevent embryo attachment, so the integrity of the embryos is kept in the whole immunohistochemistry process, and the immunohistochemistry effect is improved. The method mainly aims at in vitro embryos, and the components of a tissue treatment reagent are adjusted on the basis of adjusting routine immunohistochemistry steps, so the immunohistochemistry effect is effectively improved. The method has the advantages of overcomingthe disadvantages in the immunohistochemistry technology, enlargement of the application range, simplicity in operation, and low production cost.

A process for extracting the human Cu, Zn superoxide dismutase (hCu, Zn-SOD) gene from human tissue includes such steps as extracting the common RNA from human embryo tissue, and reverse transcription-PCR for amplifying cDNA of hCu, Zn-SOD. Its advantages are simple process, low cost, and high sequence homology up to 99.8%.

A Zea mays regulatory region is shown, which provides improved seed preferred, and particularly embryo preferred expression in plants. Methods of use are also shown in preferentially expressing a heterologous protein to the embryo tissue of a plant. The sequence is particularly useful in expression of heterologous proteins to the embryo of monocotyledonous plants, particularly cereals, and maize.