Functional mechanism of bHLH complexes during early vascular development.

Kyoko Ohashi-Ito, Hiroo Fukuda

Journal: Current opinion in plant biology 2017;33():42-47

PMID: 27314622

Full Text on Elsevier Science View on PubMed

Abstract

The vascular system spreads throughout the plant body. This highly organized network contains several types of cells. Vascular cell development is initiated during embryogenesis, and then vascular cells proliferate, form a vascular pattern, and commit to specific cell fates. Recent molecular genetics and modeling approaches have increased our understanding of the molecular mechanisms underlying early vascular development. Early events during vascular development are tightly linked and controlled by transcriptional complexes consisting of LONESOME HIGHWAY (LHW) and TARGET OF MONOPTEROS5 (TMO5) families. The role of LHW-TMO5 is tightly coupled with biosynthesis and/or signaling of phytohormones such as auxin and cytokinin. In this review, we discuss the regulatory network mediated by LHW-TMO5 during early vascular development.

Address: Department Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan. Electronic address: [email protected].; Department Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan. Electronic address: [email protected].

DOI: 10.1016/j.pbi.2016.06.003

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MeSH Terms: Arabidopsis, Arabidopsis Proteins, Basic Helix-Loop-Helix Transcription Factors, Plant Roots, Seeds, Trans-Activators