Abstract: The present disclosure provides a preparation method of a composite current collector for a zinc secondary battery, a negative electrode plate, and a zinc secondary battery. The preparation method of the composite current collector for the zinc secondary battery comprises: 1) disposing a layer of carbon cloth between two layers of zinc mesh, thermally pressing the two layers of zinc mesh with the carbon cloth, and rolling the two layers of zinc mesh with the carbon cloth to obtain a pressed zinc mesh; 2) soaking the pressed zinc mesh in a graphene dispersion, then taking out and drying the pressed zinc mesh after soaking; and 3) coating two surfaces of the dried pressed zinc mesh with a conductive paste and drying to obtain the composite current collector for the zinc secondary battery.

Abstract: The present invention provides novel protein and gene related to flavonoid O-methyltransferase (FOMT) and their uses therefore. The said protein having an amino acid sequence shown in SEQ ID NO: 3, or an amino acid sequence having deletion, substitution or insertion of one or plural amino acids in said amino acid sequence. The said gene comprising the nucleotide sequence shown in SEQ ID NO: 1, or a gene which hybridizes with said gene under stringent conditions and encodes a protein, which has anthocyanin 3?—O-methyltransferase or 3?,5?—O-methyltrasnferase activity. The present invention also provides a method for obtaining the transgenic plant used the above-mentioned gene.

Abstract: The present invention provides novel protein and gene related to flavonoid O-methyltransferase (FOMT) and their uses therefore. The said protein having an amino acid sequence shown in SEQ ID NO: 3, or an amino acid sequence having deletion, substitution or insertion of one or plural amino acids in said amino acid sequence. The said gene comprising the nucleotide sequence shown in SEQ ID NO: 1, or a gene which hybridizes with said gene under stringent conditions and encodes a protein, which has anthocyanin 3?-O-methyltransferase or 3?,5?-O-methyltransferase activity. The present invention also provides a method for obtaining the transgenic plant used the above-mentioned gene.