An RNA exosome subunit mediates cell-to-cell trafficking of a homeobox mRNA via plasmodesmata
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mRNA migration through plasmodesmata In plants, certain transcription factors are produced in one cell but transported, sometimes as messenger RNA (mRNA), through plasmodesmata, channels between neighboring plant cells, where they act. This system helps to manage stem cell development. Kitagawa et al . now identify part of the machinery that manages this cell-to-cell transport. Transport of the mRNA encoding the KNOTTED1 homeobox transcription factor depends on Ribosomal RNA-Processing Protein 44 (AtRRP44A), which is a subunit of the RNA exosome. —PJH
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1983 ◽
Vol 258
(19)
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pp. 12034-12042
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1989 ◽
Vol 138
(1)
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pp. 205-207
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DCL is a plant-specific protein required for plastid ribosomal RNA processing and embryo development
2003 ◽
Vol 53
(4)
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pp. 531-543
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