PRGL:A cell wall proline-rich protein containning GASA domain in Gerbera hybrida  

作　　者：PENG JianZong, LAI LiuJing & WANG XiaoJing College of Life Sciences, South China Normal University, Guangdong Provincial Key Lab of Biotechnology for Plant Development, Guangzhou 510631, China 

出　　处：《Science China(Life Sciences)》2008年第6期520-525,共6页中国科学（生命科学英文版）

基　　金：the National Natural Science Foundation of China (Grant No. 30570165);Natural Science Foundation of Guangdong Province of China (Grant Nos. 5005912 and 2006A20101007)

摘　　要：PRPs (proline-rich proteins) are a group of cell wall proteins characterized by their proline and hy- droproline-rich repetitive peptides. The expression of PRPs in plants is stimulated by wounding and environmental stress. GASA (gibberellic acid stimulated in Arabidopsis) proteins are small peptides sharing a 60 amino acid conserved C-terminal domain containing twelve invariant cysteine residues. Most of GASAs reported are localized to apoplasm or cell wall and their expression was regulated by gibberellins (GAs). It has been reported that, in French bean, these two proteins encoding by two distinct genes formed a two-component chitin-receptor involved in plant-pathogen interactions when plant was infected. We cloned a full-length cDNA of PRGL (proline-rich GASA-like) gene which encodes a protein containing both PRP and GASA-like domains. It is demonstrated that PRGL is a new protein with characteristics of PRP and GASA by analyzing its protein structure and gene expression.PRPs (proline-rich proteins) are a group of cell wall proteins characterized by their proline and hy- droproline-rich repetitive peptides. The expression of PRPs in plants is stimulated by wounding and environmental stress. GASA (gibberellic acid stimulated in Arabidopsis) proteins are small peptides sharing a 60 amino acid conserved C-terminal domain containing twelve invariant cysteine residues. Most of GASAs reported are localized to apoplasm or cell wall and their expression was regulated by gibberellins (GAs). It has been reported that, in French bean, these two proteins encoding by two distinct genes formed a two-component chitin-receptor involved in plant-pathogen interactions when plant was infected. We cloned a full-length cDNA of PRGL (proline-rich GASA-like) gene which encodes a protein containing both PRP and GASA-like domains. It is demonstrated that PRGL is a new protein with characteristics of PRP and GASA by analyzing its protein structure and gene expression.

关 键 词：cell WALL protein PROLINE-RICH PROTEINS (PRPs) gibberellic acid stimulated in ARABIDOPSIS (GASA) PROLINE-RICH GASA-like (PRGL) GERBERA hybrida 

分 类 号：Q946[生物学—植物学]