The high road and the low road: trafficking choices in plants.
Polar transport of the signaling molecule auxin is critical for plant development and depends on both the polar distribution of auxin efflux carriers, which pump auxin out of the cell and the alignment of these polarized cells. Two papers in this issue of Cell (Michniewicz et al., 2007; Jaillais et al., 2007) address how polar transport of these carriers occurs and describe the endosomal pathways involved.
Jürgens
Gerd
G
ZMBP, Entwicklungsgenetik, Universität Tübingen, Auf der Morgenstelle 3, D-72076 Tübingen, Germany. gerd.juergens@zmbp.uni-tuebingen.de
Geldner
Niko
N
D017360:Arabidopsis / Q000196:embryology / Q000201:enzymology / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism*; D002352:Carrier Proteins / Q000378:metabolism; D002454:Cell Differentiation; D016764:Cell Polarity; D049109:Cell Proliferation; D011992:Endosomes / Q000378:metabolism; D005838:Genotype; D020662:Guanine Nucleotide Exchange Factors / Q000378:metabolism; D007210:Indoleacetic Acids / Q000378:metabolism*; D026901:Membrane Transport Proteins / Q000378:metabolism; D018519:Meristem / Q000201:enzymology / Q000378:metabolism; D009154:Mutation; D010641:Phenotype; D010749:Phosphoprotein Phosphatases / Q000378:metabolism; D010766:Phosphorylation; D030821:Plants, Genetically Modified / Q000196:embryology / Q000201:enzymology / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D017346:Protein Serine-Threonine Kinases / Q000378:metabolism; D021122:Protein Subunits / Q000378:metabolism; D021381:Protein Transport; D036226:Seedlings / Q000201:enzymology / Q000378:metabolism; D015398:Signal Transduction; D058305:Sorting Nexins; D033921:Vesicular Transport Proteins / Q000378:metabolism; D052584:Xylem / Q000378:metabolism
D029681:Arabidopsis Proteins; D002352:Carrier Proteins; D020662:Guanine Nucleotide Exchange Factors; D007210:Indoleacetic Acids; D026901:Membrane Transport Proteins; D010749:Phosphoprotein Phosphatases; D017346:Protein Serine-Threonine Kinases; D021122:Protein Subunits; D058305:Sorting Nexins; D033921:Vesicular Transport Proteins; C088087:GNOM protein, Arabidopsis; C515611:Mag1 protein, Arabidopsis; C116363:PIN1 protein, Arabidopsis; C117013:AT5G57090 protein, Arabidopsis; C451260:PIN4 protein, Arabidopsis; C405165:PINOID protein, Arabidopsis