| 摘要 |
DNAs as specified below. (a) A DNA containing the base sequence represented by SEQ ID NO:6. (b) A DNA containing a base sequence derived from the sequence represented by SEQ ID NO:6 by deletion, substitution or addition of one or more bases and being capable of expressing a protein having a naringenin 7-O-methyltrasnferase activity when transferred into rice cells. A rice NOMT genome DNA and a DNA substantially having the function of the former DNA (namely, a function of expressing a protein having an NOMT activity when transferred into a rice cell). Since a number of plants have naringenin serving as the substrate of NOMT, transfer of such a DNA makes it possible to derive sakuranetin from naringenin in plants and thus impart an excellent antibacterial characteristic to the plants.
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