The tetratricopeptide repeat-containing protein slow green1 is required for chloroplast development in Arabidopsis

A new gene, SG1, was identified in a slow-greening mutant (sg1) isolated from an ethylmethanesulphonate-mutagenized population of Arabidopsis thaliana. The newly formed leaves of sg1 were initially albino, but gradually became pale green. After 3 weeks, the leaves of the mutant were as green as thos...

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Bibliographische Detailangaben
Veröffentlicht in:	Journal of experimental botany. - 1985. - 65(2014), 4 vom: 15. März, Seite 1111-23
1. Verfasser:	Hu, Zhihong (VerfasserIn)
Weitere Verfasser:	Xu, Fan, Guan, Liping, Qian, Pingping, Liu, Yaqiong, Zhang, Huifang, Huang, Yan, Hou, Suiwen
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2014
Zugriff auf das übergeordnete Werk:	Journal of experimental botany
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't Albino Arabidopsis thaliana chloroplast development proplastid to chloroplast transition slow greening tetratricopeptide repeat-containing protein. ASI1 protein, Arabidopsis Arabidopsis Proteins mehr... DNA-Binding Proteins GUN1 protein, Arabidopsis GUN4 protein, Arabidopsis Intracellular Signaling Peptides and Proteins RNA-Binding Proteins Chlorophyll 1406-65-1

Beschreibung
Zusammenfassung:	A new gene, SG1, was identified in a slow-greening mutant (sg1) isolated from an ethylmethanesulphonate-mutagenized population of Arabidopsis thaliana. The newly formed leaves of sg1 were initially albino, but gradually became pale green. After 3 weeks, the leaves of the mutant were as green as those of the wild-type plants. Transmission electron microscopic observations revealed that the mutant displayed delayed proplastid to chloroplast transition. The results of map-based cloning showed that SG1 encodes a chloroplast-localized tetratricopeptide repeat-containing protein. Quantitative real-time reverse transcription-PCR data demonstrated the presence of SG1 gene expression in all tissues, particularly young green tissues. The sg1 mutation disrupted the expression levels of several genes associated with chloroplast development, photosynthesis, and chlorophyll biosynthesis. The results of genetic analysis indicated that gun1 and gun4 partially restored the expression patterns of the previously detected chloroplast-associated genes, thereby ameliorating the slow-greening phenotype of sg1. Taken together, the results suggest that the newly identified protein, SG1, is required for chloroplast development in Arabidopsis
Beschreibung:	Date Completed 04.11.2014 Date Revised 10.03.2022 published: Print-Electronic Citation Status MEDLINE
ISSN:	1460-2431
DOI:	10.1093/jxb/ert463