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PROVIDER: PRJDB20046 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Genome-wide analyses of early translational responses to elevated temperature in Oryza sativa (CBX138)
| PRJDB20105 | ENA
Project description:Genome-wide analyses of early translational responses to elevated temperature and high salinity in Arabidopsis thaliana
| PRJDB7968 | ENA
Project description:We investigated genome-wide changes in mRNA translation in Arabidopsis thaliana suspension cell cultures exposed to brief perids of two types of stress: elevated temperature (37 degree_C) and high salinity (200 mM NaCl). To this end, we subjected polysomal RNA and non-polysomal RNA from sucrose gradient fractionated cell lysates to the co-hybridization on Agilent Arabidopsis 3 Oligo Microarrays. The ratio of signal intensities (polysomal RNA: non-polysomal RNA) was used as an indicator of the translation state for each transcript. To inspect coordination of changes in translational profiles with transcriptional profiles, we also isolated total RNAs from the same cells used for translational profiling experiments and investigated changes in accumulated transcript levels in response to each stress using the microarray. Two biological replicates were analyzed.
2010-07-07 | E-DORD-69 | biostudies-arrayexpress
Project description:Ascophyllum nodosum extract induced salinity tolerance in Arabidopsis thaliana We used microarrays to detail the global programme of gene expression underlying ANE mediated salinity tolerance in the Arabidopsis thaliana
2016-09-07 | GSE86481 | GEO
Project description:Plant reproduction is one key biological process very sensitive to heat stress and, as a consequence, enhanced global warming imposes serious threats to sustain food safety worldwide. In this work we have focused on the molecular impact that high temperature conditions impose on gene expression of Arabidopsis pollen germinated in vitro. We have used a high-resolution ribosome profiling technology to provide, for the first time, a comprehensive study of how both the transcriptome and the translatome of germinated pollen respond to the increase in temperature. Although heat shock responses operate properly under high temperature conditions, we have uncovered important alterations under elevated temperature regimes down-regulating essential processes linked to cation/proton exchange and to carbohydrate/cation symport transport. These alterations provide molecular explanations to the dramatic alterations of pollen tube growth under heat stress. Overall a high correlation between transcriptional and translational responses to high temperature was found, but specific regulations at the translational level are also present in pollen subjected to temperature challenging conditions.
2020-12-15 | GSE145795 | GEO
Project description:Dynamic trimethylation of histone H3 at Lys27 (H3K27me3) affects gene expression and controls plant development and environmental responses. In Arabidopsis thaliana, RELATIVE OF EARLY FLOWERING 6/JUMONJI DOMAIN-CONTAINING PROTEIN 12 (REF6/JMJ12) demethylates H3K27me3 by recognizing a specific DNA motif; however, little is known about how REF6 activates target gene expression after recognition, especially in environmental responses. In response to warm ambient temperature, plants undergo thermomorphogenesis, which involves accelerated growth, early flowering, and changes in morphology. Here we show that REF6 regulates thermomorphogenesis and cooperates with the transcription factor PHYTOCHROME INTERACTING FACTOR 4 (PIF4) to synergistically activate thermo-responsive genes under warm ambient temperature. The ref6 loss-of-function mutants exhibited attenuated hypocotyl elongation at warm temperature, partially due to down-regulation of GIBBERELLIN 20-OXIDASE2 (GA20ox2) and BASIC HELIX-LOOP-HELIX 87 (bHLH87). REF6 enzymatic activity is necessary for warm ambient temperature responses. Together, our results provide direct evidence of an epigenetic modifier and a transcription factor working together to respond to the environment.
2021-12-31 | GSE181292 | GEO
Project description:RNA sequencing of salinity tolerant Arabidopsis thaliana mutants expressing zinc finger artificial transcription factors (ZF-ATFs), with and without salt treatment (0 mM and 75 mM NaCl).
2018-07-27 | GSE71488 | GEO
Project description:We conducted whole-genome bisulfite sequencing (WGBS) of Arabidopsis thaliana mutation accumulation (MA) lines under different temperature treatments over sucessive generations, and then we identified the global methylation in each MA line. Our result showed taht DNA methylation was observed more frequently at DNA mutation sites, indicating its contribution to the mutation process at elevated temperatures.
2021-05-01 | GSE173660 | GEO
Project description:Quantitative RNA sequencing (RNA-seq) and the complementary phenotypic assays were implemented to investigate the transcriptional responses of Chromohalobacter salexigens to osmotic and heat stress. These conditions trigger the synthesis of ectoine and hydroxyectoine, two compatible solutes of biotechnological interest. Our findings revealed that both stresses make a significant impact on C. salexigens global physiology. Apart from compatible solute metabolism, the most relevant adaptation mechanisms were related to “oxidative- and protein-folding- stress responses”, “modulation of respiratory chain and related components”, and “ion homeostasis”. A general salt-dependent induction of genes related to the metabolism of ectoines, as well as repression of ectoine degradation genes by temperature, was observed. Different oxidative stress response mechanisms, secondary or primary, were induced at low and high salinity respectively, and repressed by temperature. A higher sensitivity to H2O2 was observed at high salinity, regardless of temperature. Low salinity induced genes involved in “protein-folding-stress response”, suggesting disturbance of protein homeostasis. Transcriptional shift of genes encoding three types of respiratory NADH dehydrogenases, ATP synthase, quinone pool, Na+/H+ antiporters, and sodium-solute symporters, was observed depending on salinity and temperature, suggesting modulation of the components of the respiratory chain and additional systems involved in the generation of H+ and/or Na+ gradients. Remarkably, the Na+ intracellular content remained constant regardless of salinity and temperature. Disturbance of Na+- and H+-gradients with specific ionophores suggested that both gradients influence ectoine production, but with differences depending on the solute, salinity, and temperature conditions. Flagellum genes were strongly induced by salinity, and further induced by temperature. However, salt-induced cell motility was reduced at high temperature, possibly caused by an alteration of Na+ permeability by temperature, as dependence of motility on Na+-gradient was observed. The transcriptional induction of genes related to the synthesis and transport of siderophores correlated with a higher siderophore production and intracellular iron content only at low salinity. In addition, compared to low salinity external iron increased hydroxyectoine accumulation by 20% at high salinity, but reduced the intracellular content of ectoines by 50% at high salinity plus high temperature. These findings support the relevance of iron homeostasis for osmoadaptation, thermoadaptation and accumulation of ectoines, in C. salexigens
2018-08-31 | GSE69612 | GEO
Project description:In this study we explain the physiological, biochemical and gene expression mechanisms adopted by ammonium nitrate-fed Arabidopsis thaliana plants growing under elevated [CO2], highlighting the importance of root-to-shoot interactions in these responses A transcriptomic analysis enabled the identification of photoassimilate allocation and remobilization as fundamental process used by the plants to maintain the outstanding photosynthetic performance. Moreover, based on the relationship between plant carbon status and hormone functioning, the transcriptomic analyses provided an explanation of why phenology accelerates in elevated [CO2] conditions.
2017-07-01 | GSE70560 | GEO