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Interaction of PIN and PGP transport mechanisms in auxin distribution-dependent development
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SYSNO ASEP 0312924 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Interaction of PIN and PGP transport mechanisms in auxin distribution-dependent development Title Spolupráce transportních mechanismů využívajících proteiny PIN a PGP ve vývoji určeném rozložením auxinu Author(s) Mravec, J. (DE)
Kubeš, Martin (UEB-Q) RID, ORCID
Bielach, A. (BE)
Gaykova, V. (DE)
Petrášek, Jan (UEB-Q) RID, ORCID
Skůpa, Petr (UEB-Q) RID
Chand, S. (DE)
Benková, E. (BE)
Zažímalová, Eva (UEB-Q) RID, ORCID
Friml, J. (DE)Source Title Development. - : Company of Biologists - ISSN 0950-1991
Roč. 135, č. 20 (2008), s. 3345-3354Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords PGP ; PIN ; Auxin transport ; Embryogenesis Subject RIV ED - Physiology R&D Projects LC06034 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) KJB600380604 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000259568600004 DOI 10.1242/dev.021071 Annotation The signalling molecule auxin controls plant morphogenesis via its activity gradients, which are produced by intercellular auxin transport. Cellular auxin efflux is the rate-limiting step in this process and depends on PIN and phosphoglycoprotein (PGP) auxin transporters. Mutual roles for these proteins in auxin transport are unclear, as is the significance of their interactions for plant development. Here, we have analysed the importance of the functional interaction between PIN- and PGP-dependent auxin transport in development. We show by analysis of inducible overexpression lines that PINs and PGPs define distinct auxin transport mechanisms: both mediate auxin efflux but they play diverse developmental roles. Components of both systems are expressed during embryogenesis, organogenesis and tropisms, and they interact genetically in both synergistic and antagonistic fashions. A concerted action of PIN- and PGP-dependent efflux systems is required for asymmetric auxin distribution during these processes. We propose a model in which PGP-mediated efflux controls auxin levels in auxin channel-forming cells and, thus, auxin availability for PIN-dependent vectorial auxin movement. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2009
Number of the records: 1