A leucine-rich protein, LrpX, is a new regulator of hrp genes in Xanthomonas oryzae pv. oryzae

作者：Islam Md Rashidul; Kabir Md Shahinur; Hirata Hisae; Tsuge Seiji; Tsuyumu Shinji^*

来源：Journal of General Plant Pathology, 2009, 75(1): 66-71.

DOI：10.1007/s10327-008-0124-2

• Xanthomonas oryzae pv. oryzae
• hrp genes
• Leucine-rich protein
• Regulatory protein

Xanthomonas oryzae pv. oryzae (Xoo) is the causal agent of bacterial leaf blight of rice. In xanthomonads, HrpG (an OmpR family response regulator) and HrpX (an AraC-type transcriptional regulator) are the two key regulatory proteins required for regulation of hrp genes. Recently, we reported that an ORF XOO1662 encoding a putative leucine-rich protein (designated as LrpX) seems to be involved in pathogenicity but not in HR elicitation. Here, we report that LrpX is involved in negative regulation of a major hrp regulatory gene, hrpG, and of the genes in most of the hrp operons in Xoo.

• 出版日期2009-2