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Cytokinin Signaling and Its Inhibitor AHP6 Regulate Cell Fate During Vascular Development
The cell lineages that form the transporting tissues (xylem and phloem) and the intervening pluripotent procambial tissue originate from stem cells near the root tip. We demonstrate that inExpand
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ARR1, a Transcription Factor for Genes Immediately Responsive to Cytokinins
Cytokinins are a class of phytohormones involved in various physiological events of plants. The Arabidopsis sensor histidine kinase CRE1 was recently reported to be a cytokinin receptor. We used aExpand
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Arabidopsis ARR1 and ARR2 response regulators operate as transcriptional activators.
The genes coding for the response regulators ARR1 and ARR2 have previously been identified by in silico screening of an expression sequence tag database and subsequent cloning from both ArabidopsisExpand
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Modulation of Phospholipid Signaling by GLABRA2 in Root-Hair Pattern Formation
The root-hair pattern of Arabidopsis is determined through a regulatory circuit composed of transcription factor genes. The homeobox gene GLABRA2 (GL2) has been considered a key component, actingExpand
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Nucleotide sequence of the kanamycin resistance transposon Tn903.
Abstract The entire nucleotide sequence of the kanamycin resistance transposon Tn903 was determined by analyzing a mini-ColE1 derivative carrying Tn903. Tn903 was 3094 base-pairs in length and atExpand
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The Arabidopsis Phosphatidylinositol Phosphate 5-Kinase PIP5K3 Is a Key Regulator of Root Hair Tip Growth[W][OA]
Phosphatidylinositol 4,5-bisphosphate [PtdIns(4,5)P2] functions as a site-specific signal on membranes to promote cytoskeletal reorganization and membrane trafficking. Localization of PtdIns(4,5)P2Expand
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The A-Type Cyclin CYCA2;3 Is a Key Regulator of Ploidy Levels in Arabidopsis Endoreduplication[W][OA]
Plant cells frequently undergo endoreduplication, a process in which chromosomal DNA is successively duplicated in the absence of mitosis. It has been proposed that endoreduplication is regulated atExpand
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ARR1 directly activates cytokinin response genes that encode proteins with diverse regulatory functions.
Plant cells respond to cytokinins by changing their gene expression patterns. The histidyl-aspartyl (His-Asp) phosphorelay mediates the signal from cytokinin receptors to type-B response regulatorsExpand
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Sequence determination and characterization of the replicator region in the tumor-inducing plasmid pTiB6S3.
The replicator region of the 195-kilobase-pair (kb) tumor-inducing plasmid pTiB6S3 was previously identified by isolation of a 6.8-kb miniplasmid (B.P. Koekman, P.J.J. Hooykaas, and R.A.Expand
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Cloning, expression, and characterization of cDNAs encoding Arabidopsis thaliana squalene synthase.
We have isolated and characterized two overlapping cDNA clones for Arabidopsis thaliana squalene synthase. Their nucleotide sequences contained an open reading frame for a 410-amino acid polypeptideExpand
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