Academic Assembly, Institute of Agriculture, Shinshu University, Nagano 399-4598, Japan.
Int J Mol Sci. 2022 Apr 6;23(7):4043. doi: 10.3390/ijms23074043.
Plant epidermis contains atypical small chloroplasts. However, the physiological role of this organelle is unclear compared to that of large mesophyll chloroplasts, the well-known function of which is photosynthesis. Although knowledge of the involvement of chloroplasts in the plant immunity has been expanded to date, the differences between the epidermal and mesophyll chloroplasts are beyond the scope of this study. Given the role of the plant epidermis as a barrier to environmental stresses, including pathogen attacks, and the immune-related function of chloroplasts, plant defense research on epidermal chloroplasts is an emerging field. Recent studies have revealed the dynamic movements of epidermal chloroplasts in response to fungal and oomycete pathogens. Furthermore, epidermal chloroplast-associated proteins and cellular events that are tightly linked to epidermal resistance against pathogens have been reported. In this review, I have focused on the recent progress in epidermal chloroplast-mediated plant immunity.
植物表皮含有非典型的小型叶绿体。然而，与众所周知的光合作用功能的大型叶肉叶绿体相比，这种细胞器的生理作用尚不清楚。尽管迄今为止，人们对叶绿体参与植物免疫的认识已经扩展，但表皮叶绿体和叶肉叶绿体之间的差异不在本研究范围内。鉴于植物表皮作为抵御包括病原体攻击在内的环境胁迫的屏障的作用，以及叶绿体的免疫相关功能，因此对表皮叶绿体的植物防御研究是一个新兴领域。最近的研究揭示了表皮叶绿体对真菌和卵菌病原体的动态运动。此外，还报道了与表皮抵抗病原体紧密相关的表皮叶绿体相关蛋白和细胞事件。在这篇综述中，我重点介绍了表皮叶绿体介导的植物免疫的最新进展。
