AUTHOR=Qin Tengfei , Zhao Pei , Sun Jialiang , Zhao Yuping , Zhang Yaxin , Yang Qiuyue , Wang Weipeng , Chen Zhuanqing , Mai Tengfei , Zou Yingying , Liu Guoxiang , Hao Wei TITLE=Research Progress of PPR Proteins in RNA Editing, Stress Response, Plant Growth and Development JOURNAL=Frontiers in Genetics VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2021.765580 DOI=10.3389/fgene.2021.765580 ISSN=1664-8021 ABSTRACT=

RNA editing is a posttranscriptional phenomenon that includes gene processing and modification at specific nucleotide sites. RNA editing mainly occurs in the genomes of mitochondria and chloroplasts in higher plants. In recent years, pentatricopeptide repeat (PPR) proteins, which may act as trans-acting factors of RNA editing have been identified, and the study of PPR proteins has become a research focus in molecular biology. The molecular functions of these proteins and their physiological roles throughout plant growth and development are widely studied. In this minireview, we summarize the current knowledge of the PPR family, hoping to provide some theoretical reference for future research and applications.