| Auxin-associated initiation of vascular cell differentiation by LONESOME HIGHWAY. | |
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MedLine Citation:
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PMID: 23362345 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Plant vascular tissues are essential for the existence of land plants. Many studies of transcriptional regulation and cell-cell communication have revealed the process underlying the development of vascular tissues from vascular initial cells. However, the initiation of vascular cell differentiation is still a mystery. Here, we report that LONESOME HIGHWAY (LHW), which encodes a bHLH transcription factor, is expressed in pericycle-vascular mother cells at the globular embryo stage and is required for proper asymmetric cell division to generate vascular initial cells. In addition, ectopic expression of LHW elicits an ectopic auxin response. Moreover, LHW is required for the correct expression patterns of components related to auxin flow, such as PIN-FORMED 1 (PIN1), MONOPTEROS (MP) and ATHB-8, and ATHB-8 partially rescues the vascular defects of lhw. These results suggest that LHW functions as a key regulator to initiate vascular cell differentiation in association with auxin regulation. |
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Authors:
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Kyoko Ohashi-Ito; Mio Oguchi; Mikiko Kojima; Hitoshi Sakakibara; Hiroo Fukuda |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Development (Cambridge, England) Volume: 140 ISSN: 1477-9129 ISO Abbreviation: Development Publication Date: 2013 Feb |
Date Detail:
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Created Date: 2013-01-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8701744 Medline TA: Development Country: England |
Other Details:
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Languages: eng Pagination: 765-9 Citation Subset: IM |
Affiliation:
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Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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