Os11g0701800

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The rice Os11g0701800 was reported as RIXI in 2014 [1] by researchers from China.

Annotated Information

Figure 6. Expression of RIXI, Cht-3 and PR-1 in rice seedlings after Magnaporthe grisea treatment by qRT-PCR.[1].

Gene Symbol

  • Os11g0701800 <=> OsRIXI,xylanase inhibitor,RIXI

Function

  • Rice xylanase inhibitor RIXI is a XIP-type inhibitor that belongs to the glycoside hydrolase family 18 (GH18), which includes plant class III chitinases (EC 3.2.1.14) known as PR-8 proteins.
  • The rice RIXI might be involved in environmental responses such as defense against phytopathogens.

Expression

  • KJ201, a strain of M. grisea, can infect leaf tissue of O. sativa cv. Nipponbare. The qRT-PCR and sqRT-PCR indicated that RIXI was up- regulated in rice seedlings infected by M. grisea KJ201
  • the increased RIXI expression was accompanied by significantly elevated expression of PR-1 and Cht-3 after pathogen infection (Fig. 4a, b). This suggested that xylanase inhibitors could be expressed in combination with other defensive proteins, and used to develop resistance to pathogens.

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Labs working on this gene

  • College of Life Science, Zhejiang University, Hangzhou 310058, China

References

  1. 1.0 1.1 Hou, Chun-Xiao, et al. "Functional characterization of a new pathogen induced xylanase inhibitor (RIXI) from rice." European journal of plant pathology 138.2 (2014): 405-414.

Structured Information