Yocgo, Rosita EndahCreissen, GaryKunert, Karl J.Chikwamba, R.K. (Rachel Kerina)2016-11-292016-11-292012-12Yocgo, R.E., Creissen, G., Kunert, K.J. & Chikwamba, R.K. Two different banana NPR1-like coding sequences confer similar protection against pathogens in Arabidopsis. Tropical Plant Biology. (2012) 5: 309. doi:10.1007/s12042-012-9112-y.1935-9756 (print)1935-9764 (online)10.1007/s12042-012-9112-yhttp://hdl.handle.net/2263/58302Differences between the coding sequences of two banana homologues of the Non-expressor of Pathogenesis-Related 1 (NPR1) genes (MNPR1A and MNPR1B) were investigated as a possible cause for the differential activity of the two genes. Each of the MNPR1 coding sequences were expressed under the control of the cauliflower mosaic virus 35S promoter/terminator sequences in the transgenic Arabidopsis npr1-2 mutant. These MNPR1-expressing plants were then exposed to either the biotrophic oomycete Hyaloperonospora arabidopsidis, the necrotrophic fungus Botrytis cinerea, or the hemi-biotrophic bacterial pathogen Pseudomonas syringae. Expression of either MNPR1A or MNPR1B increased Pathogenesis-related 1 (PR-1) transcription in a similar manner in mutant plants and reduced pathogen growth, restoring resistance of the Arabidopsis npr1-2 mutant plants to pathogens. Sequence differences between MNPR1A and MNPR1B coding sequences did not affect MNPR1activity, suggesting a possible role for the involvement of other regulatory sequences in differential MNPR1 gene expression.en© Springer Science+Business Media New York 2012. The original publication is available at : http://link.springer.com/journal/12042.Banana NPR1-like sequencesBotrytis cinereaHyaloperonospora arabidopsidisPR proteinsPseudomonas syringaeSequence dissimilarityNon-expressor of Pathogenesis-Related 1 (NPR1)Postprint Article