author keywords: Arabidopsis thaliana; importin; lignin; MYB4; plant growth; ref8; suppressor mutant

MeSH headings : Adaptor Proteins, Signal Transducing / metabolism; Adaptor Proteins, Signal Transducing / physiology; Arabidopsis / genetics; Arabidopsis / growth & development; Arabidopsis / metabolism; Arabidopsis Proteins / metabolism; Arabidopsis Proteins / physiology; Cell Division; Gene Expression Regulation, Plant; Lignin / metabolism; Repressor Proteins / metabolism; Repressor Proteins / physiology; Transcription Factors / metabolism; Transcription Factors / physiology; beta Karyopherins / metabolism

TL;DR: It is shown that defects in both cell division and cell expansion underlie the dwarfism of an Arabidopsis lignin mutant ref8, and the identification of a GIR1 gene from a suppressor screen is reported, suggesting that the growth rescue effect of gir1 is likely due to compromised MYB4 transport and function. (via Semantic Scholar)