Zhang Qifa's research group held a results ventilation meeting on the 1st. Dr. Ding Jihua, the first author of the study, introduced that light-sensitive genic male sterile rice is considered to be an extremely valuable genetic resource. The national 863 program launched in 1987 will use it. Photosensitive nuclear sterility breeding "Two-line" hybrid rice was included in the biotechnology field as one of the main contents. Zhang Qiming's research group conducted 25 years of research. The study found that the gene pms3, which controls rice photo-sensitive genic sterility, is a long-chain non-coding RNA, and there is a one-base mutation in the pms3 interval between light-sensitive genic male sterile rice and normal rice cultivars. The expression of this gene is regulated by photoperiod. Under long-day conditions, the normal expression of pms3 gene is crucial for pollen development.
Zhang He-chien stated that the research results of the cloning and functional analysis of light-sensitive genic rice (PMS3) revealed the mysteries of rice photosynthetic genic male sterility genes and could be directly applied to the development of rice two-line sterile lines to accelerate “two linesâ€. "The cultivation of hybrid rice, and the promotion of the development of crop heterosis utilization research." At the same time, pms3 is the first long-chain non-coding RNA found in rice and has been functionally studied. This result opens a window for the study of non-coding RNA in plants.
The installation method of the vehicle-mounted guide plate can be customized, and the most commonly used is the hoop installation.
Hoop installation:
The first type: If your car does not have a pillar, you can install the bracket bar as shown in the picture on the left, and fix the guide plate on the bracket bar with a screw. Fix the guide plate on the bracket bar with a screw. (First put the screw into the guide brand aluminum slot, then pass the screw through the hole of the bracket bar, put the shrapnel, washer, nut, and then tighten the nut).
The second type: install three L-shaped brackets at suitable positions on the roof, install three aluminum bars on the three L-shaped brackets respectively, punch holes in the aluminum bars that are aligned with the L-shaped brackets, and then fix the aluminum bars on the On the L-shaped bracket (first pass the screw through the holes on the aluminum bar and the L-shaped bracket, insert the shrapnel, washer, and nut, and then tighten the nut).
The third type: install two aluminum strips directly on the roof of the car, punch two holes in the appropriate position of the aluminum strip to facilitate the installation of the aluminum strip on the car, fix the aluminum strip with screws, and then fix the guide plate with a hoop On the aluminum bar. Pass the end of the screw with a nut through the aluminum slot on the back of the guide plate, and then align the hoop around the aluminum bar with the screws on the aluminum slot, that is, put the holes at both ends of the hoop into the two sides of the aluminum bar. On the screw, screw on the shrapnel, washer, and nut, and then tighten it.
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Shenzhen Wide Way Optoelectronics Co., Ltd. , https://www.wdmtrafficlight.com