| malus hupehensis npr1 induces pathogenesis-related protein gene expression in transgenic tobacco. | most commercially grown apple cultivars are susceptible to fungal diseases. malus hupehensis has high resistance to many diseases affecting apple cultivars. understanding innate defence mechanisms would help to develop disease-resistant apple crops. non-expressor of pathogenesis-related genes 1 (npr1) plays a key role in regulating salicylic acid (sa)-mediated systemic acquired resistance (sar). mhnpr1 cdna, corresponding to genomic dna and its 5' flanking sequences, was isolated from m. hupehen ... | 2011 | 21973266 |