SLN1 — Magnaporthe oryzae 70-15

Summary

MoSLN1 (MGG_07312) on chromosome 2 of Magnaporthe oryzae 70-15 encodes a histidine kinase with osmosensor, peroxide sensor, and phosphorelay sensor kinase activities, as well as histidine phosphotransfer kinase and DNA-binding transcription factor activity. The protein localises to the plasma membrane, cytoplasm, and nucleus. MoSLN1 is associated with appressorium formation, penetration peg formation, host invasion, regulation of conidium formation, filamentous growth, and the cellular high-osmolarity glycerol (HOG) response. It is linked to responses to singlet oxygen and farnesol, fungal-type cell wall biogenesis, and cell size control. Associations with turgor pressure and resistance to hypo- and hyperosmotic stress have been noted. The gene is connected to blast disease in rice and barley. Related genes in other species link the family to osmolarity sensing via a two-component system.