Arabidopsis thalianaDOF6 negatively affects germination in non-after-ripened seeds and interacts with TCP14

Abstract Seed dormancy prevents seeds from germinating under environmental conditions unfavourable for plant growth and development and constitutes an evolutionary advantage. Dry storage, also known as after-ripening, gradually decreases seed dormancy by mechanisms not well understood. AnArabidopsis... Ausführliche Beschreibung

1. Person: Rueda-Romero, Paloma
Weitere Personen: Barrero-Sicilia, Cristina verfasserin; Gómez-Cadenas, Aurelio verfasserin; Carbonero, Pilar verfasserin; Oñate-Sánchez, Luis verfasserin
Quelle: in The journal of experimental botany : an official publication of the Society for Experimental Biology and of the Federation of European Societies of Plant Physiology Vol. 63, No. 5 (2012), p. 1937-1949
Weitere Artikel
Format: Online-Artikel
Sprache: English
Veröffentlicht: 2012
Beschreibung: Online-Ressource
Schlagworte: research-article
ABA1
abscisic acid
after-ripening
DOF6/DOF3.2
germination
heat shock proteins
seeds
TCP14
transcription factors
Online Zugang: Volltext
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Anmerkung: Copyright: © 2011 The Author(s)
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245 1 0 |a Arabidopsis thalianaDOF6 negatively affects germination in non-after-ripened seeds and interacts with TCP14  |h Elektronische Ressource 
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520 |a Abstract Seed dormancy prevents seeds from germinating under environmental conditions unfavourable for plant growth and development and constitutes an evolutionary advantage. Dry storage, also known as after-ripening, gradually decreases seed dormancy by mechanisms not well understood. AnArabidopsis thalianaDOF transcription factor gene (DOF6) affecting seed germination has been characterized. The transcript levels of this gene accumulate in dry seeds and decay gradually during after-ripening and also upon seed imbibition. While constitutive over-expression ofDOF6produced aberrant growth and sterility in the plant, its over-expression induced upon seed imbibition triggered delayed germination, abscisic acid (ABA)-hypersensitive phenotypes and increased expression of the ABA biosynthetic geneABA1and ABA-related stress genes. Wild-type germination and gene expression were gradually restored during seed after-ripening, despite ofDOF6-induced over-expression. DOF6 was found to interact in a yeast two-hybrid system andin plantawith TCP14, a previously described positive regulator of seed germination. The expression ofABA1and ABA-related stress genes was also enhanced intcp14knock-out mutants. Taken together, these results indicate that DOF6 negatively affects seed germination and opposes TCP14 function in the regulation of a specific set of ABA-related genes. 
653 |a research-article 
653 |a ABA1 
653 |a abscisic acid 
653 |a after-ripening 
653 |a DOF6/DOF3.2 
653 |a germination 
653 |a heat shock proteins 
653 |a seeds 
653 |a TCP14 
653 |a transcription factors 
700 1 |a Barrero-Sicilia, Cristina  |e verfasserin  |4 aut 
700 1 |a Gómez-Cadenas, Aurelio  |e verfasserin  |4 aut 
700 1 |a Carbonero, Pilar  |e verfasserin  |4 aut 
700 1 |a Oñate-Sánchez, Luis  |e verfasserin  |4 aut 
773 0 8 |i in  |t The journal of experimental botany : an official publication of the Society for Experimental Biology and of the Federation of European Societies of Plant Physiology  |d Oxford : Oxford Univ. Press  |g Vol. 63, No. 5 (2012), p. 1937-1949  |q 63:5<1937-1949  |w (DE-601)JST047753579  |x 1460-2431 
856 4 1 |u https://www.jstor.org/stable/26205046  |3 Volltext 
912 |a GBV_JSTOR 
951 |a AR 
952 |d 63  |j 2012  |e 5  |h 1937-1949 

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