FRUITFULL is a repressor of apical hook opening in arabidopsis thaliana
Abstract: Plants adjust their architecture to a constantly changing environment, requiring adaptation of differential growth. Despite their importance, molecular switches, which define growth transitions, are largely unknown. Apical hook development in dark grown Arabidopsis thaliana (A. thaliana) seedlings serves as a suitable model for differential growth transition in plants. Here, we show that the phytohormone auxin counteracts the light-induced growth transition during apical hook opening. We, subsequently, identified genes which are inversely regulated by light and auxin. We used in silico analysis of the regulatory elements in this set of genes and subsequently used natural variation in gene expression to uncover correlations between underlying transcription factors and the in silico predicted target genes. This approach uncovered that MADS box transcription factor AGAMOUS-LIKE 8 (AGL8)/FRUITFULL (FUL) modulates apical hook opening. Our data shows that transient FUL expression represses the expression of growth stimulating genes during early phases of apical hook development and therewith guards the transition to growth promotion for apical hook opening. Here, we propose a role for FUL in setting tissue identity, thereby regulating differential growth during apical hook development
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Anmerkungen
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ISSN: 1422-0067
- Klassifikation
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Biowissenschaften, Biologie
- Ereignis
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Veröffentlichung
- (wo)
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Freiburg
- (wer)
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Universität
- (wann)
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2024
- Urheber
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Führer, Miriam
Gaidora, Angelika
Venhuizen, Peter
Dobrogojski, Jedrzej
Béziat, Chloé
Feraru, Mugurel I.
Kleine-Vehn, Jürgen
Kalyna, Maria
Barbez, Elke
- DOI
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10.3390/ijms21176438
- URN
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urn:nbn:de:bsz:25-freidok-2443406
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:48 MESZ
Datenpartner
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Beteiligte
- Führer, Miriam
- Gaidora, Angelika
- Venhuizen, Peter
- Dobrogojski, Jedrzej
- Béziat, Chloé
- Feraru, Mugurel I.
- Kleine-Vehn, Jürgen
- Kalyna, Maria
- Barbez, Elke
- Universität
Entstanden
- 2024
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