关键词: 内质网, 内质网胁迫, 未折叠蛋白质响应, 内质网降解

Abstract: Endoplasmic reticulum (ER) is an important site for protein folding and protein glycosylation. There are many regulatory mechanisms in endoplasmic reticulum to ensure that the proteins are correctly folded, modified and assembled to maintain the endoplasmic reticulum steady state, which is very important for the normal physiological activities of cells. However, many physical and chemical factors can make the endoplasmic reticulum out of balance, that is, under stress conditions, the accumulation of misfolded and unfolded protein will lead to endoplasmic reticulum stress (ERS), which will lead to unfolded protein response (UPR), and in extreme cases, it will also initiate program cell death (PCD). At present, the research on endoplasmic reticulum stress in plants lags behind that in yeast and animals. Therefore, the existing research on endoplasmic reticulum stress in plants was reviewed from two aspects: endoplasmic reticulum quality control system and unfolded protein response, in order to provide references for further understanding the relationship between endoplasmic reticulum stress and plant stress.

Key words: endoplasmic reticulum, ER stress, unfolded protein response, ER associated degradation