Improvement concerning organic compound

PURPOSE: To prepare a plant having reduced susceptibility to Impatiens Necrotic Spot Virus(INSV) infection, a genetic material resistant to INSV, and a probe suitable for isolating ISNV and diagnosing plant INSV related diseases. CONSTITUTION: The present invention relates to the preparation of a plant having reduced susceptibility to INSV infection and containing a recombinant INSV DNA construct comprising an INSV DNA coding for transcription into INSV RNA sequences or into RNA sequences related thereto in a genome; and preparing a probe suitable for the isolation of INSV or diagnosis of plant INSV related diseases; by the way, a terminator and promoter for the DNA construct is a bacterium, fungus or the like capable of acting in plant cells. COPYRIGHT: (C)1994,JPO