Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana

Junker A, Mönke G, Rutten T, Keilwagen J, Seifert M, Thi TMN, Renou J-P, Balzergue S, Viehöver P, Hähnel U, Ludwig-Müller J, et al. (2012)
The Plant Journal 71(3): 427-442.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
The transcription factor LEAFY COTYLEDON1 (LEC1) controls aspects of early embryogenesis and seed maturation in Arabidopsis thaliana. To identify components of the LEC1 regulon, transgenic plants were derived in which LEC1 expression was inducible by dexamethasone treatment. The cotyledon-like leaves and the swollen root tips developed by these plants contained seed storage compounds and resembled the phenotypes produced by the increased auxin levels. Accordingly, LEC1 mediated the up-regulation of the auxin synthesis gene YUCCA10. Auxin was accumulated primarily in the elongation zone at the root-hypocotyl junction (collet). This accumulation correlates with hypocotyl growth which is either inhibited or stimulated in the LEC1-induced long-hypocotyl phenotype resembling etiolated seedlings. Chromatin immuno-precipitation analysis revealed a number of phytohormone- and elongation-related genes among the putative LEC1 target genes. LEC1 seems to be an integrator of different regulatory events, involving the transcription factor itself as well as light and hormone signaling, especially during somatic and early zygotic embryogenesis. Furthermore the data allow speculations about non-embryonic functions for LEC1 during post-germinative etiolation. © 2012 The Authors. The Plant Journal © 2012 Blackwell Publishing Ltd.
Erscheinungsjahr
Zeitschriftentitel
The Plant Journal
Band
71
Zeitschriftennummer
3
Seite
427-442
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Junker A, Mönke G, Rutten T, et al. Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana. The Plant Journal. 2012;71(3):427-442.
Junker, A., Mönke, G., Rutten, T., Keilwagen, J., Seifert, M., Thi, T. M. N., Renou, J. - P., et al. (2012). Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana. The Plant Journal, 71(3), 427-442. doi:10.1111/j.1365-313X.2012.04999.x
Junker, A., Mönke, G., Rutten, T., Keilwagen, J., Seifert, M., Thi, T. M. N., Renou, J. - P., Balzergue, S., Viehöver, P., Hähnel, U., et al. (2012). Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana. The Plant Journal 71, 427-442.
Junker, A., et al., 2012. Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana. The Plant Journal, 71(3), p 427-442.
A. Junker, et al., “Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana”, The Plant Journal, vol. 71, 2012, pp. 427-442.
Junker, A., Mönke, G., Rutten, T., Keilwagen, J., Seifert, M., Thi, T.M.N., Renou, J.-P., Balzergue, S., Viehöver, P., Hähnel, U., Ludwig-Müller, J., Altschmied, L., Conrad, U., Weisshaar, B., Bäumlein, H.: Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana. The Plant Journal. 71, 427-442 (2012).
Junker, Astrid, Mönke, Gudrun, Rutten, Twan, Keilwagen, Jens, Seifert, Michael, Thi, Tuyet Minh Nguyen, Renou, Jean-Pierre, Balzergue, Sandrine, Viehöver, Prisca, Hähnel, Urs, Ludwig-Müller, Jutta, Altschmied, Lothar, Conrad, Udo, Weisshaar, Bernd, and Bäumlein, Helmut. “Elongation-related functions of LEAFY COTYLEDON1 during the development of Arabidopsis thaliana”. The Plant Journal 71.3 (2012): 427-442.

29 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

Seed-development programs: a systems biology-based comparison between dicots and monocots.
Sreenivasulu N, Wobus U., Annu Rev Plant Biol 64(), 2013
PMID: 23451786
Toward the identification and regulation of the Arabidopsis thaliana ABI3 regulon.
Mönke G, Seifert M, Keilwagen J, Mohr M, Grosse I, Hähnel U, Junker A, Weisshaar B, Conrad U, Bäumlein H, Altschmied L., Nucleic Acids Res 40(17), 2012
PMID: 22730287
Multifunctionality of the LEC1 transcription factor during plant development.
Junker A, Bäumlein H., Plant Signal Behav 7(12), 2012
PMID: 23073004

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