SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 9 and 13 repress BLADE-ON-PETIOLE 1 and 2 directly to promote adult leaf morphology in Arabidopsis

© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 74(2023), 6 vom: 28. März, Seite 1926-1939
1. Verfasser: Hu, Tieqiang (VerfasserIn)
Weitere Verfasser: Manuela, Darren, Xu, Mingli
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, Non-U.S. Gov't BOP1 BOP2 Blade SPL13 SPL9 petiole vegetative phase change mehr... Arabidopsis Proteins Carrier Proteins MicroRNAs BOP2 protein, Arabidopsis
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245 1 0 |a SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 9 and 13 repress BLADE-ON-PETIOLE 1 and 2 directly to promote adult leaf morphology in Arabidopsis 
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500 |a Date Revised 04.04.2023 
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520 |a © The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology. 
520 |a The juvenile-to-adult phase transition during vegetative development is a critical decision point in a plant's life cycle. This transition is mediated by a decline in levels of miR156/157 and an increase in the activities of its direct targets, SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) proteins. In Arabidopsis, the juvenile-to-adult transition is characterized by an increase in the length to width ratio of the leaf blade (a change in the distal region of a leaf), but what mediates this change in lamina shape is not known. Here, we show that ectopic expression of SPL9 and SPL13 produces enlarged and elongated leaves, resembling leaves from the blade-on-petiole1 (bop1) bop2 double mutant. The expression of BOP1/BOP2 is down-regulated in successive leaves, correlating with the amount of miR156 and antagonistic to the expression of SPL9 and SPL13 in leaves. SPL9 and SPL13 bind to the promoters of BOP1/BOP2 directly to repress their expression, resulting in delayed establishment of proliferative regions in leaves, which promotes more blade outgrowth (the distal region of a leaf) and suppresses petiole development (the proximal region of a leaf). Our results reveal a mechanism for leaf development along the proximal-distal axis, a heteroblastic character between juvenile leaves and adult leaves 
650 4 |a Journal Article 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a BOP1 
650 4 |a BOP2 
650 4 |a Blade 
650 4 |a SPL13 
650 4 |a SPL9 
650 4 |a petiole 
650 4 |a vegetative phase change 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Carrier Proteins  |2 NLM 
650 7 |a MicroRNAs  |2 NLM 
650 7 |a BOP2 protein, Arabidopsis  |2 NLM 
700 1 |a Manuela, Darren  |e verfasserin  |4 aut 
700 1 |a Xu, Mingli  |e verfasserin  |4 aut 
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773 1 8 |g volume:74  |g year:2023  |g number:6  |g day:28  |g month:03  |g pages:1926-1939 
856 4 0 |u http://dx.doi.org/10.1093/jxb/erad017  |3 Volltext 
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