RNA trafficking in plant cells: targeting of cytosolic mRNAs to the mitochondrial surface.
Subcellular localization of mRNA is a widespread and efficient way for targeting proteins to specific regions of a cell. Messenger RNA sorting appears as a key mechanism for posttranscriptional gene regulation, and its involvement in organelle biogenesis has been described in different organisms. Here we demonstrate that mRNA targeting to the surface of mitochondria occurs in higher plants. Cytosolic mRNAs corresponding to mitochondrial proteins, but also to some particular cytosolic proteins, were found associated to mitochondria, offering new perspectives for mitochondria biogenesis in plant cells.
Michaud
Morgane
M
Institut de Biologie Moléculaire des Plantes, UPR 2357 du CNRS, Université de Strasbourg, 12 rue du Général Zimmer, 67084 Strasbourg, France.
Maréchal-Drouard
Laurence
L
Duchêne
Anne-Marie
AM
D015152:Blotting, Northern; D015153:Blotting, Western; D003600:Cytosol / Q000378:metabolism; D008928:Mitochondria / Q000378:metabolism*; D024101:Mitochondrial Proteins / Q000235:genetics / Q000378:metabolism; D059828:Plant Cells; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D035281:Plant Tubers / Q000166:cytology / Q000235:genetics / Q000378:metabolism; D010944:Plants / Q000235:genetics* / Q000378:metabolism; D034443:RNA Transport; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism*; D018749:RNA, Plant / Q000235:genetics / Q000378:metabolism*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D011198:Solanum tuberosum / Q000166:cytology / Q000235:genetics / Q000378:metabolism
D024101:Mitochondrial Proteins; D010940:Plant Proteins; D012333:RNA, Messenger; D018749:RNA, Plant