Oropetium thomaeum
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA306667 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR2058409_subreads.fastq.gz | Fastqsanger.gz | |||
| SRR2083750_1.fastq.gz | Fastqsanger.gz | |||
| SRR2083750_2.fastq.gz | Fastqsanger.gz | |||
| SRR2083760_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 96 |
Similar Datasets
Project description:Water shortage is a major factor that harms agriculture and ecosystems worldwide. Plants display various levels of tolerance to water deficit, but only resurrection plants can survive full desiccation of their vegetative tissues. Haberlea rhodopensis, an endemic plant of the Balkans, is one of the few resurrection plants found in Europe. We performed transcriptomic analyses of this species under slight, severe and full dehydration and recovery to investigate the dynamics of gene expression and associate them with existing physiological and metabolomics data. De novo assembly yielded a total of 142,479 unigenes with an average sequence length of 1,034 nt. Among them, 18,110 unigenes were differentially expressed. Hierarchical clustering of all differentially expressed genes resulted in seven clusters of dynamic expression patterns. The most significant expression changes, involving more than 15,000 genes, started at severe dehydration (~20% relative water content) and were partially maintained at full desiccation (<10% relative water content). More than a hundred pathways were enriched and functionally organized in a GO/pathway network at the severe dehydration stage. Transcriptomic changes in key pathways were analyzed and discussed in relation to metabolic processes, signal transduction, quality control of protein and DNA repair in this plant during dehydration and rehydration. Reprograming of the transcriptome occurs during severe dehydration, resulting in a profound alteration of metabolism toward alternative energy supply, hormone signal transduction, and prevention of DNA/protein damage under very low cellular water content, underlying the observed physiological and metabolic responses and the resurrection behavior of H. rhodopensis.
2018-11-20 | GSE109958 | GEO
Project description:The resurrection plant Craterostigma plantagineum possesses an extraordinary capacity to survive long-term desiccation. To enhance our understanding of this phenomenon, complementary transcriptome, soluble proteome and primary metabolome analyses were carried out on plant leaves collected at different physiological stages during a dehydration and rehydration cycle. Dynamic changes in transcript, protein and metabolite levels revealed a unique signature characterizing each stage
2021-04-27 | PXD020923 | Pride
Project description:Salmonella can survive for long periods under extreme desiccation conditions. This stress response poses a risk for food safety, but relatively little is known about the molecular and cellular regulation of this adaptation mechanism. To determine the genetic components involved in Salmonella’s cellular response to desiccation, we performed a global transcriptomic analysis comparing Salmonella Typhimurium cells equilibrated to low water activity (aw 0.11) and cells equilibrated to high water activity (aw 1.0). The analysis revealed that 719 genes were differentially regulated between the two conditions, of which 290 genes were up-regulated at aw 0.11. Most of these genes were involved in metabolic pathways, transporter regulation, DNA replication/repair, transcription and translation, and, more importantly, virulence genes.
2017-10-26 | GSE86580 | GEO
Project description:Genome-wide transcriptional profiling of Arabidopsis thaliana to a combination of heatwave and drought under ambient and elevated CO2. Goal of this study was elucidate the transcriptional responses to a combination of heat wave and drought, and to see how these responses are modifed under future climate (high) CO2. Climate changes increasingly threaten plant growth and productivity. Such changes are complex and involve multiple environmental factors, including rising CO2 levels and climate extreme events. As the molecular and physiological mechanisms underlying plant responses to realistic future climate extreme conditions are still poorly understood, a multiple organizational level-analysis (i.e. eco-physiological, biochemical and transcriptional) was performed, using Arabidopsis exposed to incremental heat wave and water deficit under elevated CO2.The climate extreme resulted in biomass reduction, photosynthesis inhibition, and considerable increases in stress parameters. Photosynthesis was a major target as demonstrated at the physiological and transcriptional levels. In contrast, the climate extreme treatment induced a protective effect on oxidative membrane damage, most likely as a result of strongly increased lipophilic antioxidants and membrane-protecting enzymes. Elevated CO2 significantly mitigated the negative impact of a combined heat and drought, as apparent in biomass reduction, photosynthesis inhibition, chlorophyll fluorescence decline, H2O2 production and protein oxidation. Analysis of enzymatic and molecular antioxidants revealed that the stress-mitigating CO2 effect operates through up-regulation of antioxidant defense metabolism, as well as by reduced photorespiration resulting in lowered oxidative pressure. Therefore, exposure to future climate extreme episodes will negatively impact plant growth and production, but elevated CO2 is likely to mitigate this effect.
2014-04-24 | GSE57035 | GEO
Project description:RNA-Seq data from the resurrection plant Xerophyta schlechteri during desiccation in three tissues: non-senescent, senescent and pre-senescent during dehydration and rehydration.
2022-12-30 | GSE168229 | GEO
Project description:Cellular desiccation - the loss of nearly all water from the cell - is a recurring stress in an increasing number of ecosystems that can drive proteome-wide protein unfolding and aggregation. For cells to survive this stress, at least some of the proteome must disaggregate and resume function upon rehydration. The molecular determinants that underlie the ability of proteins to do this remain largely unknown. Here, we apply quantitative and structural proteomic mass spectrometry to desiccated and rehydrated yeast extracts to show that some proteins possess an innate capacity to survive extreme water loss. Structural analysis correlates the ability of proteins to tolerate desiccation with their surface chemistry. We find that highly tolerant proteins are responsible for the production of the cell’s building blocks - amino acids, metabolites, and sugars. Conversely, those proteins that are most desiccation-sensitive are involved in ribosome biogenesis and other energy consuming processes. As a result, the rehydrated proteome is preferentially enriched with metabolite and small molecule producers and depleted of some of the cell’s heaviest consumers. We propose this functional bias enables cells to kickstart their metabolism and promote cell survival following desiccation and rehydration.
2025-09-24 | PXD055914 | Pride
Project description:Cellular desiccation - the loss of nearly all water from the cell - is a recurring stress in an increasing number of ecosystems that can drive proteome-wide protein unfolding and aggregation. For cells to survive this stress, at least some of the proteome must disaggregate and resume function upon rehydration. The molecular determinants that underlie the ability of proteins to do this remain largely unknown. Here, we apply quantitative and structural proteomic mass spectrometry to desiccated and rehydrated yeast extracts to show that some proteins possess an innate capacity to survive extreme water loss. Structural analysis correlates the ability of proteins to tolerate desiccation with their surface chemistry. We find that highly tolerant proteins are responsible for the production of the cell’s building blocks - amino acids, metabolites, and sugars. Conversely, those proteins that are most desiccation-sensitive are involved in ribosome biogenesis and other energy consuming processes. As a result, the rehydrated proteome is preferentially enriched with metabolite and small molecule producers and depleted of some of the cell’s heaviest consumers. We propose this functional bias enables cells to kickstart their metabolism and promote cell survival following desiccation and rehydration.
2025-09-25 | PXD055855 | Pride
Project description:Alhagi sparsifolia Shap. is a perennial subshrub belonging to genus Alhagi, family Leguminosae. As a typical desert phreatophyte, this plant species has highly developed deep roots and displays a great capacity to withstand poor soil as well as extreme dry, cold and hot weather. A. sparsifolia is naturally distributed in the arid and salinized regions of northernwestern China and adjacent countries in Central Asia, and plays a fundamental role in maintaining the local ecosystem. In addition, this plant is usually used as a fodder for local animals due to its high protein content, and is important in the development of local livestock husbandry. Considering its great tolerance to harsh environments, A. sparsifolia represents an ideal species for deciphering the mechanism of plant adaption to abiotic stress, such as water deficit. However, understanding the stress adaption in this plant is limited. While a few studies were conducted on physiological responses of A. sparsifolia to water stress, research has never been done to explore the genomic basis for its drought-tolerance to date. In particular, as a non-model plant species, the genomic resource of A. sparsifolia is rather scarce, only one expressed sequence tag (EST) and one protein have been deposited in Genbank prior to Sept., 2014. In aim to explore the genetic basis underlying drought tolerance in this species, recently we took advantage of transcriptome sequencing to survey the water stress responsive genes in A. sparsifolia primary roots. Using Illumina HiSeq™ 2000 platform, we sequenced the primary root samples individually collected at four different time points (0, 6h, 24 and 30h) from A. sparsifolia seedlings during 24h of water stress following 6h of rehydration. The resulting 38,763,230, 67,511,150, 49,259,804 and 54,744,906 high quality reads were pooled and assembled into 33,255 unigenes with an average length of 1,057 bp. All-unigenes were subjected to functional annotation by searching against the public databases including NR, NT, Swiss-Prot, Pfamm, GO, KOG and KEGG. On the basis of the established transcriptome database, we evaluated the gene expression profiles in A. sparsifolia primary roots at 0, 6, 24 and 30h in the course of water stress and subsequent rehydration. An extensive repertoire of the differently expressed genes (DEGs) reflecting the early response to water stress (6h), the late response to water stress (24h) and the response to post stress rehydration (30h) were identified. In addition, to unravel the dynamic changes of gene expression during water stress and subsequent rehydration, we further captured the DEGs commonly or specifically regulated at 6, 24 and 30h. Functional categorization of the DEGs disclosed the activation of oxidoreductase system in A. sparsifolia primary roots upon water stress, and particularly emphasized the significance of the ‘Glutathione metabolism pathway’. To our knowledge, this is the first description of the genetic makeup of A. sparsifolia, thus providing a substantial contribution to the sequence resources for this species. The DEGs identified herein offers a deep insight into the molecular mechanism of A. sparsifolia in response to water stress, and merits further investigation.
2017-02-09 | GSE62174 | GEO