Differential expression of PRLIPs, a pathogenesis-related gene family encoding class 3 lipase-like proteins in Arabidopsis
2010
In plants plenty of inducible defense-related proteins classified into 17 pathogenesis-related (PR) families have been described. Expression of homologous PR genes from the same family can be induced by the different defense hormones, like salicylic acid (SA), jasmonic acid (JA) or ethylene (ET), and are also regulated in a organ- or tissue-specific manner. A recently identified pathogenesis-related gene family, the PRLIP (pathogenesis-related lipase) has 9 members in Arabidopsis and their organization and expression pattern — as it is summarized in this study — is similar to the one of genes coding for other PR proteins. PRLIP3, PRLIP8 and PRLIP9 showed a relatively high expression in all tissues tested with a maximum in root (PRLIP3), stem (PRLIP8) or siliques (PRLIP9). The activity of PRLIP3 gene was further induced by SA and JA treatment. Other members (PRLIP1, PRLIP2, PRLIP4 and PRLIP6), however, were detected only in some of the tested organs. High levels of PRLIP1 mRNA occurred in all green tissues...
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