Project description:To investigate the deposition of HTR5 in Arabidopsis, we analysed genome-wide HTR5 density in the wild-type Col-0 by ChIP-seq. We then performed HTR5 occupancy analysis using data obtained from ChIP-seq of 3 different plants including HA-HTR5/Col-0 and Col-0. Col-0 acted as negative control.

2023-04-01 | GSE223308 | GEO

Arabidopsis gene expression profile : Col-0 wild-type vs. pif3pif4pil5pil6 (pifQ) mutant

Project description:Transcriptional profiling of 60h-old Arabidopsis whole seedlings comparing control Col-0 wild-type plants with pifQ mutant plants The expression profile of dark-grown pifQ mutant shows similar pattern of Rc-grown Col-0 wild-type Keywords: Genetic modification

2009-04-23 | GSE14492 | GEO

Effect of submergence on wild-type (Col-0) and ago1-27 mutant

Project description:Hypoxia exerts major effects on gene expression, which is reconfigured to meet the needs of the stressed plant. In the recent years the mechanisms of oxygen sensing and transcriptional regulation of a cluster of anaerobic genes was described. We utilized a hypomorphic, post-transcriptional gene silencing defective ARGONAUTE1 (AGO1) mutant, ago1-27, to evaluate the contribution of AGO1 to plant tolerance to submergence and its effects on gene expression.

2019-12-01 | GSE116996 | GEO

Transgenic Ah24-OE vs Wild type Col 0 Arabidopsis plants

Project description:Transcriptional profiling of Arabidopsis rossette leaves comparing WT Col-0 with a transgenic line overexpressing Ah24 gene from Amaranthus hypochondriacus.

2015-06-26 | GSE70272 | GEO

Transgenic AhDGR-OE vs Wild type Col 0 Arabidopsis plants

Project description:Transcriptional profiling of Arabidopsis rossette leaves comparing WT Col-0 with a transgenic line overexpressing AhDGR gene from Amaranthus hypochondriacus.

2016-11-30 | GSE84726 | GEO

Quantitative Phosphoproteomics Reveals Targets of Protein Kinase SnRK1 in Arabidopsis under Submergence

Project description:SNF1 RELATED PROTEIN KINASE 1 (SnRK1) is proposed as a central integrator of regulatory pathways in plant stress and energy starvation signaling. We observed in this study that the Arabidopsis SnRK1.1 dominant negative mutant (SnRK1.1K48M) had lower tolerance to submergence than the wild-type, suggesting that SnRK1.1-dependent phosphorylation of target proteins is important in energy starvation signaling triggered by submergence. To gain further insight into submergence signaling mechanisms, we determined the temporal response to energy starvation through AMP/ATP quantification and used quantitative phosphoproteomics to compare the global changes in phosphopeptides in Col-0 and SnRK1.1K48M. We found that the phosphorylation levels of 59 peptides increased and the levels of 96 peptides decreased in Col-0 within 0.5–3 h of submergence. Among the 59 peptides with increased phosphorylation in Col-0, 49 did not show increased phosphorylation levels in SnRK1.1K48M under submergence. These proteins are involved in sugar synthesis, glycolysis, osmotic regulation, ABA signaling, protein synthesis and ROS signaling. In particular, the phosphorylation of MAPK6, which is involved in regulating ROS responses under different abiotic stresses, was disrupted in the SnRK1.1K48M mutant. In addition, PTP1, a negative regulator of MAPK6 activity that directly dephosphorylates MAPK6, was also regulated by SnRK1.1. These results reveal insights into the function of SnRK1 and the downstream signaling factors of submergence.

2016-04-07 | PXD001815 | Pride

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