RNA commutes to work: regulation of plant gene expression by systemically transported RNA molecules.
Although long-distance movement of endogenous mRNAs in plants is well established, the functional contributions of these transported RNA molecules has remained unclear. In a recent report, Kim et al.2001 showed that systemically transported mRNA is capable of causing phenotypic change in developing tissue. Here, this finding and its significance are reviewed and discussed in detail. In addition, in order to give proper perspective, long-distance transport of other types of RNAs, e.g., RNA elicitors of post-transcriptional gene silencing and RNA genomes of plant viruses, and its possible regulation are discussed.
Ueki
S
S
Department of Biochemistry and Cell Biology, State University of New York, Stony Brook, USA.
Citovsky
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V
D001692:Biological Transport; D018507:Gene Expression Regulation, Developmental; D018506:Gene Expression Regulation, Plant; D020868:Gene Silencing; D018398:Homeodomain Proteins / Q000235:genetics*; D018551:Solanum lycopersicum / Q000235:genetics; D010770:Phosphotransferases / Q000235:genetics; D010935:Plant Diseases; D018515:Plant Leaves / Q000502:physiology; D010940:Plant Proteins / Q000235:genetics*; D012323:RNA Processing, Post-Transcriptional; D012333:RNA, Messenger / Q000378:metabolism* / Q000502:physiology; D018749:RNA, Plant / Q000378:metabolism* / Q000502:physiology
D018398:Homeodomain Proteins; D010940:Plant Proteins; D012333:RNA, Messenger; D018749:RNA, Plant; C110893:T6 protein, Lycopersicon esculentum; D010770:Phosphotransferases; C022502:pyrophosphate-fructose 6-phosphate 1-phosphotransferase