Stilbenoid prenyltransferases from plants

    公开(公告)号:US11535856B2

    公开(公告)日:2022-12-27

    申请号:US16921540

    申请日:2020-07-06

    Abstract: The process and system led to the identification of prenyltransferase genes from elicitor-treated peanut hairy roots. One of the prenyltransferases, AhR4DT-1 catalyzes a key reaction involved in the biosynthesis of prenylated stilbenoids, in which resveratrol is prenylated at its C-4 position to form arachidin-2, while another, AhR3′DT-1, was able to add the prenyl group to C-3′ of resveratrol. Each of these prenyltransferases has a high specificity for stilbenoid substrates, and their subcellular location in the plastid was confirmed by fluorescence microscopy. Structure analysis of the prenylated stilbenoids suggest that these two prenyltransferase activities represent the first committed steps in the biosynthesis of a large number of prenylated stilbenoids and their derivatives in peanut.

    Automated audio/video distribution system

    公开(公告)号:US09866793B1

    公开(公告)日:2018-01-09

    申请号:US15095929

    申请日:2016-04-11

    Abstract: An intelligent sensor assisted system that dynamically adapts to the video streaming needs of a network or sub networks of users in order to facilitate collaboration. This automated audio/video distribution system includes an identifier detector that allows the system to intelligently activate the cameras/audio devices located at a zone according to the user's needs. The system detects an identifier that is associated with a user. The system identifies all users in the cyberspace associated with the identifier. The system captures the audio/video of the user's activities at the zone. The system then transmits the audio/video feed to remote users in the cyberspace who share the same identifier.

    Method of improving chloroplast function and increasing seed yield

    公开(公告)号:US12180494B2

    公开(公告)日:2024-12-31

    申请号:US17405644

    申请日:2021-08-18

    Abstract: Ascorbate protects tissues against damage caused by reactive oxygen species (ROS) produced through normal metabolism or generated from stress. The inositol route to AsA involves four enzymes: myo-inositol oxygenase, glucuronate reductase, gluconolactonase (GNL), and L-gulono-1,4-lactone oxidase (GulLO). Eighteen putative GNLs were identified in Arabidopsis, one of which, AtGNL, is interesting because it possesses a chloroplastic signal peptide. Knockouts on this gene had lower foliar AsA and stunted growth compared to controls. The functional gene restored the phenotype of the knockouts, and those plants had higher AsA content, enhanced photosynthetic capacity, and higher seed yield.

    Method and system of increasing water and acid condensation from flue gas

    公开(公告)号:US10543434B2

    公开(公告)日:2020-01-28

    申请号:US15072050

    申请日:2016-03-16

    Inventor: Kwangkook Jeong

    Abstract: The system and method spatially predict the condensation of water and acid from the flue gas in the condensing heat exchanger installed in fossil power plant flue gas treatment system or similar environment. By modifying the operational conditions, the heat exchanger can control rates and areas of condensations. The system and method adjust either the cooling water temperature or the flowrate ratio of flue gas to cooling water to control the condensation rates of water or acids. The system and method also estimate actual coverage areas to apply for anti-corrosive coating onto the tube or duct surfaces to resist corrosion due to acid condensation. The system and method also optimize or customize condensation rates of water and acids in boiler flue gas under operating conditions given at a power plant.

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