2results about How to "Firm texture" patented technology

This invention discloses a tissue culture method for *Gynostemma pentaphyllum*, comprising the following steps: S1: Pretreatment of *Gynostemma pentaphyllum* before the inflorescence emerges, obtaining sterilized inflorescences through aseptic operation; S2: Induction of callus tissue from the inflorescence stalk segment retaining the base of the flower bud, inoculated into a callus induction medium to obtain white callus tissue; S3: Greening of callus tissue, after removing the inflorescence stalk segment from the white callus tissue obtained in S2, transferred to a callus greening medium; S4: Induction and proliferation of shoot clusters, transferring the green callus tissue obtained in S3 to a shoot cluster induction and proliferation medium to cultivate *Gynostemma pentaphyllum* seedlings; S5: Rooting culture of robust seedlings to obtain rooted *Gynostemma pentaphyllum* plants. The advantages of this invention compared to existing technologies are: it provides a tissue culture method for inducing callus tissue and plant regeneration from the inflorescence stalk segment retaining the base of the flower bud of *Gynostemma pentaphyllum*, providing an effective tissue culture system for the commercial in vitro propagation of *Gynostemma pentaphyllum* seedlings.

The utility model discloses a novel braided mesh pipe, including the mesh pipe body, the mesh pipe body includes a plurality of first function strands and second function strands, and is woven through a plurality of first function strands and second function strands, and a plurality of mesh holes are formed between a plurality of first function strands and second function strands, and the first function strand includes PET monofilament and PPS monofilament, and is made through the spiral twist of PET monofilament and PPS monofilament, and the second function strand includes PA monofilament and polypropylene monofilament, and is made through the spiral twist of PA monofilament and polypropylene monofilament, and the mesh pipe body is plain weave structure, and the number of strands of PET monofilament and PPS monofilament is 2:1, and the number of strands of PA monofilament and polypropylene monofilament is 2:1, and the diameter of PET monofilament, PPS monofilament, PA monofilament and polypropylene monofilament is 0.2 0.4mm, and a plurality of mesh holes are square or rhombic, and the utility model discloses reasonable structure has the advantages of simple design, diversified function, convenient to use.