2019
DOI: 10.1101/590182
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Do Arabidopsis Squamosa promoter binding Protein-Like genes act together in plant acclimation to copper or zinc deficiency?

Abstract: The genome of Arabidopsis thaliana encodes approximately 260 copper (Cu)-dependent proteins, which include enzymes in central pathways of photosynthesis, respiration and responses to environmental stress. Under Cu-deficient growth conditions, Squamosa promoter binding Protein-Like 7 (SPL7) activates the transcription of genes encoding Cu acquisition systems and mediates a metabolic reorganization to economize on Cu. The transcription factor SPL7 groups among comparably large proteins in the SPL family, which a… Show more

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Cited by 4 publications
(11 citation statements)
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“…The SBP domain consists of three functionally important motifs, including two Zn-nger like structures formed by conserved cysteine and histidine residues (Yamasaki, et al 2004). In the current study SPL genes controlled the variation of Zn and Se content, this agrees with other studies, where Arabidopsis Squamosa promoter binding Protein-Like genes act together in the regulation of transition metal homeostasis including Cu and Zn (Schulten, et al 2019). Furthermore, in rice, OsSPL13 positively regulates cell size in the grain hull, resulting in enhanced grain length and yield (Si, et al 2016).…”
Section: Candidate Genessupporting
confidence: 91%
“…The SBP domain consists of three functionally important motifs, including two Zn-nger like structures formed by conserved cysteine and histidine residues (Yamasaki, et al 2004). In the current study SPL genes controlled the variation of Zn and Se content, this agrees with other studies, where Arabidopsis Squamosa promoter binding Protein-Like genes act together in the regulation of transition metal homeostasis including Cu and Zn (Schulten, et al 2019). Furthermore, in rice, OsSPL13 positively regulates cell size in the grain hull, resulting in enhanced grain length and yield (Si, et al 2016).…”
Section: Candidate Genessupporting
confidence: 91%
“…Our standard greenhouse soil is Cu-deficient (low Cu), and the defects in reproduction of spl7-1 are rescued by watering with 2 mM CuSO 4 (control) once per week (Schulten et al, 2019). With this supplementation, Cu concentrations in rosette leaf and aerial tissues of spl7-1 were significantly higher than in unamended low-Cu soil (Figure 5B), and the stunted growth of spl7-1 was partially rescued (Figure 5C), as was reported earlier (Yamasaki et al, 2009;Bernal et al, 2012;Garcia-Molina et al, 2014a;Yan et al, 2017).…”
Section: Flowering Time Of Spl7-1mentioning
confidence: 99%
“…Soil cultivation was in 16-h long days (145 µmol m -2 s -1 , 22°C)/8-h night (18°C), with Cu conditions as described (Schulten et al, 2019). Glass petri dishes were soaked in 0.2 N HCl overnight and rinsed with deionized water to remove possible contaminant Cu before autoclaving.…”
Section: Plant Growthmentioning
confidence: 99%
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“…Generally, plants require physiological concentrations of several trace metal ions, for instance, iron (Fe), copper (Cu), Zn (zinc) and manganese (Mn) to maintain ions homeostasis inside cells for proper plant growth and development, and production [222]. But, the extreme amount of the ions in the rhizosphere disturbs cellular structural, physiological, and molecular homeostasis inside cells, therefore, this significantly reduce agricultural productivity of crops [219][220][221].…”
Section: Heavy Metal Stressesmentioning
confidence: 99%