Identification and Expression Analysis of Phosphatidylinositol Transfer Proteins Genes in Rice

The family of phosphatidylinositol transfer proteins (PITPs) is able to bind specific lipids to carry out various biological functions throughout different stages of plant life. But the function of PITPs in rice plant is unclear. In this study, 30 PITPs were identified from rice genome, which showed differences in physicochemical properties, gene structure, conservation domains, and subcellular localization. The promoter region of the OsPITPs genes included at least one type of hormone response element, such as methyl jasmonate (Me JA) and salicylic acid (SA). Furthermore, the expression level of OsML-1, OsSEC14-3, OsSEC14-4, OsSEC14-15, and OsSEC14-19 genes were significantly affected by infection of rice blast fungus Magnaporthe oryzae. Based on these findings, it is possible that OsPITPs may be involved in rice innate immunity in response to M. oryzae infection through the Me JA and SA pathway.

Automated summary

In this study, 30 phosphatidylinositol transfer proteins (PITPs) were found in the rice genome, with variations in physicochemical properties, gene structure, conservation domains, and subcellular localization. The promoter region of OsPITPs genes contained hormone response elements such as methyl jasmonate (Me JA) and salicylic acid (SA). Additionally, the expression of certain OsPITPs genes was significantly affected by infection of the rice blast fungus Magnaporthe oryzae, indicating a potential role of OsPITPs in rice innate immunity through the Me JA and SA pathway.