2023年7月26日 · Among the known plant transcriptional regulators, GOLDEN2-LIKE transcription factors (GLKs) may be ideal candidates to improve photosynthesis in crops, as they are master regulators of genes associated with photosynthesis and chloroplast biogenesis across a broad diversity of plant lineages.

2024年1月5日 · GOLDEN2 LIKE (GLK) transcriptional regulators are involved in chloroplast development, but to what extent they participate in photomorphogenesis is not clear. Here, we show that ELONGATED HYPOCOTYL5 (HY5) binds to GLK promoters to activate their expression, and also interacts with GLK proteins in Arabidopsis (Arabidopsis thaliana).

Arabidopsis thaliana GOLDEN2-LIKE (GLK1 and 2) transcription factors regulate chloroplast development in a redundant manner. Overexpression of AtGLK1 (35S:AtGLK1) in Arabidopsis also confers resistance to the cereal pathogen Fusarium graminearum. To further elucidate the role of GLK transcription fa …

2022年12月9日 · In this study, we use ChIP-seq to map the GLK-binding sites in five representative plant species and find that most of the GLK-bound genes are species-specific. The conserved GLK-bound genes...

2023年11月23日 · To achieve this, the GOLDEN2-LIKE (GLK) transcription factors represent promising targets since they play a positive role for greening traits in diverse plants. To scrutinize the pleiotropic impact of GLKs, we summarized all phenotypic traits reported in functional studies that used transgenic approaches to lose or gain gene functions.

2024年6月23日 · In the present study, we investigate the function of this putative MpGLK through mutant and gain-of-function lines. Our findings confirm that MpGLK promotes chloroplast differentiation and regulates the expression of various PhANGs, positioning it as a bona fide GLK.

2008年10月22日 · GLK genes driven by the Arabidopsis epidermal FIDDLEHEAD (FDH) and MERISTEM LAYER1 (AtML1) promoters failed to rescue the pale-green Atglk1 Atglk2 mutant phenotype, confirming the suggestion that GLK proteins can only influence chloroplast development intracellularly.

2023年3月3日 · 该研究发现 拟南芥 转录因子GLK1与MBW蛋白复合体中的MYB亚基互作，促进了花青素合成相关基因的表达，并通过MBW蛋白复合体调控花青素空间分布模式。 图. GLK1调控花青素合成和空间分布模式的机制. 林宏辉和张大伟课题组研究发现在不同生长阶段，不同诱导条件下，GLK1均会促进花青素的积累。 它通过与MBW复合体中的MYB亚基（MYB75、MYB90、MYB113）互作，增强MYB亚基的DNA结合能力和转录激活活性。 作为一个 转录激活因子， …

2009年4月17日 · To establish whether phyB is required for GLK-dependent regulation of photosynthesis, we generated a phyB glk1 glk2 triple mutant. Three-week-old triple mutants exhibit a combination of glk1 glk2 and phyB parental phenotypes: morphologically they resemble phyB mutants with elongated petioles and thin leaves, and they contain less chlorophyll ...

2013年8月29日 · The GOLDEN2-LIKE (GLK) genes are members of the GARP domain superfamily of transcription factors (TFs) (Riechmann et al., 2000). GLK was originally identified as G2 in maize (Hall et al., 1998) and was shown to be capable of transactivating the expression of a reporter gene in yeast (Rossini et al., 2001).