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¹O₂-Mediated Retrograde Signaling during Late Embryogenesis Predetermines Plastid Differentiation in Seedlings by Recruiting Abscisic Acid

Plastid development in seedlings of Arabidopsis thaliana is affected by the transfer of ¹O₂-mediated retrograde signals from the plastid to the nucleus and changes in nuclear gene expression during late embryogenesis. The potential impact of these mechanisms on plastid differentiation is... Full description

1st Person: Kim, Chanhong
Additional Persons: Lee, Keun Pyo verfasserin; Baruah, Aiswarya verfasserin; Nater, Mena verfasserin; Göbel, Cornelia verfasserin; Feussner, Ivo verfasserin; Apel, Klaus verfasserin; Koornneef, Maarten verfasserin
Source: in Proceedings of the National Academy of Sciences of the United States of America Vol. 106, No. 24 (2009), p. 9920-9924
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Type of Publication: Article
Language: English
Published: 2009
Keywords: research-article
¹O₂ signaling
seed development
Online: Volltext
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520 |a Plastid development in seedlings of Arabidopsis thaliana is affected by the transfer of ¹O₂-mediated retrograde signals from the plastid to the nucleus and changes in nuclear gene expression during late embryogenesis. The potential impact of these mechanisms on plastid differentiation is maintained throughout seed dormancy and becomes effective only after seed germination. Inactivation of the 2 nuclear-encoded plastid proteins EXECUTER1 and EXECUTER2 blocks ¹O₂-mediated retrograde signaling before the onset of dormancy and impairs normal plastid formation in germinating seeds. This long-term effect of ¹O₂ retrograde signaling depends on the recruitment of abscisic acid (ABA) during seedling development. Unexpectedly, ABA acts as a positive regulator of plastid formation in etiolated and light-grown seedlings. 
653 |a research-article 
653 |a ¹O₂ signaling 
653 |a seed development 
700 1 |a Lee, Keun Pyo  |e verfasserin  |4 aut 
700 1 |a Baruah, Aiswarya  |e verfasserin  |4 aut 
700 1 |a Nater, Mena  |e verfasserin  |4 aut 
700 1 |a Göbel, Cornelia  |e verfasserin  |4 aut 
700 1 |a Feussner, Ivo  |e verfasserin  |4 aut 
700 1 |a Apel, Klaus  |e verfasserin  |4 aut 
700 1 |a Koornneef, Maarten  |e verfasserin  |4 aut 
773 0 8 |i in  |t Proceedings of the National Academy of Sciences of the United States of America  |d Washington, DC : National Acad. of Sciences  |g Vol. 106, No. 24 (2009), p. 9920-9924  |q 106:24<9920-9924  |w (DE-601)JST069399220  |x 0027-8424 
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951 |a AR 
952 |d 106  |j 2009  |e 24  |h 9920-9924 

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