Proteome of the coral symbiont Breviolum minutum under elevated temperature stress
Ontology highlight
ABSTRACT:
INSTRUMENT(S):
ORGANISM(S): Breviolum Minutum
SUBMITTER: 
Clinton Oakley
LAB HEAD: Simon Davy
PROVIDER: PXD025080 | Pride | 2022-02-23
REPOSITORIES: Pride
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| 10_T0_13-11-19.raw | Raw | |||
| 10_T0_13-11-19_20191116052344.raw | Raw | |||
| 11_T0__14-11-19.raw | Raw | |||
| 11_T0__14-11-19_20191116230622.raw | Raw | |||
| 12_TE__19_11-19.raw | Raw |
Items per page: 5 1 - 5 of 1239 |
Similar Datasets
Project description:Cultures of three Symbiodiniaceae genera (Breviolum minutum, Durusdinium trenchii, Cladocopium sp.) were exposed to temperatures increasing from 26C to 32C over three days, followed by one week at 32C. Samples for proteome analysis were taken from controls (26C), at the end of the temperature ramp, and after one week at 32C. The three species have been submitted to PRIDE individually. Manuscript in preparation.
2022-02-23 | PXD025051 | Pride
Project description:Cultures of three Symbiodiniaceae genera (Breviolum minutum, Durusdinium trenchii, Cladocopium sp.) were exposed to temperatures increasing from 26C to 32C over three days, followed by one week at 32C. Samples for proteome analysis were taken from controls (26C), at the end of the temperature ramp, and after one week at 32C. The three species have been submitted to PRIDE individually. Manuscript in preparation.
2022-02-23 | PXD025050 | Pride
Project description:Endozoicomonas are prevalent, abundant bacterial associates of marine animal hosts, including corals. Their role in holobiont health and functioning, however, remains poorly understood. To identify putative interactions within the coral holobiont, we characterized a novel Endozoicomonas isolate and assessed its transcriptomic and proteomic responses to tissue extracts of its native host, the Red Sea coral Acropora humilis, at control and elevated temperatures. We show that host cues stimulated differential expression of genes assumed to be involved in the modulation of the host immune response by Endozoicomonas, such as flagellar assembly genes, ankyrins, ephrins, and serpins. Proteome analysis revealed the upregulation of vitamin B1 and B6 biosynthetic as well as glycolytic processes by Endozoicomonas in response to host cues. We further demonstrate that the inoculation of A. humilis with its native Endozoicomonas strain resulted in enhanced holobiont health metrics, such as host tissue protein content and algal symbiont photosynthetic efficiency. Behavioral, physiological, and metabolic changes in Endozoicomonas may be key to the onset and function of mutualistic interactions within the coral holobiont, and our results suggest that the priming of Endozoicomonas to a symbiotic lifestyle may involve modulation of host immunity and the exchange of essential metabolites with other holobiont members. Consequently, Endozoicomonas presumably plays an important role in holobiont nutrient cycling and may therefore be implicated in its health, acclimatization, and ecological adaptation.
2022-08-12 | PXD027178 | Pride
Project description:Cellular mechanisms responsible for the regulation of nutrient exchange, immune responses, and symbiont population growth in the cnidarian-dinoflagellate symbiosis are poorly resolved, particularly with respect to the dinoflagellate symbiont. Here, we characterised proteomic changes in the native symbiont Breviolum minutum during colonisation of its host sea anemone Exaiptasia diaphana (‘Aiptasia’). We also compared the proteome of this native symbiont in the established symbiotic state with that of a non-native symbiont, Durusdinium trenchii. The onset of symbiosis between Aiptasia and B. minutum induced increased accumulation of symbiont proteins associated with acquisition of inorganic carbon and photosynthesis, nitrogen metabolism, micro- and macronutrient starvation, suppression of the host immune responses, tolerance to low pH, and management of oxidative stress. Such responses are consistent with a functional, persistent symbiosis. In contrast, D. trenchii predominantly showed elevated levels of immunosuppressive proteins, consistent with the view that this symbiont is an opportunist that forms a less beneficial, less well-integrated symbiosis with this model anemone. By adding this analyses of the symbiont proteins to the already known responses of the host proteome, our results provide a more holistic view of cellular processes that determine host-symbiont specificity and how differences in symbiont partners, native versus non-native symbionts, may impact the fitness of the cnidarian-dinoflagellate symbiosis in response to thermal stress. This PRIDE entry contains the Breviolum minutum data; Durusdinium trenchii data are uploaded in a separate entry with identical parameters.
2024-01-18 | PXD045585 | Pride
Project description:Cellular mechanisms responsible for the regulation of nutrient exchange, immune responses, and symbiont population growth in the cnidarian-dinoflagellate symbiosis are poorly resolved, particularly with respect to the dinoflagellate symbiont. Here, we characterised proteomic changes in the native symbiont Breviolum minutum during colonisation of its host sea anemone Exaiptasia diaphana (‘Aiptasia’). We also compared the proteome of this native symbiont in the established symbiotic state with that of a non-native symbiont, Durusdinium trenchii. The onset of symbiosis between Aiptasia and B. minutum induced increased accumulation of symbiont proteins associated with acquisition of inorganic carbon and photosynthesis, nitrogen metabolism, micro- and macronutrient starvation, suppression of the host immune responses, tolerance to low pH, and management of oxidative stress. Such responses are consistent with a functional, persistent symbiosis. In contrast, D. trenchii predominantly showed elevated levels of immunosuppressive proteins, consistent with the view that this symbiont is an opportunist that forms a less beneficial, less well-integrated symbiosis with this model anemone. By adding this analyses of the symbiont proteins to the already known responses of the host proteome, our results provide a more holistic view of cellular processes that determine host-symbiont specificity and how differences in symbiont partners, native versus non-native symbionts, may impact the fitness of the cnidarian-dinoflagellate symbiosis in response to thermal stress. This PRIDE entry contains the Durusdinium trenchii data; Breviolum minutum data are uploaded in a separate entry with identical parameters.
2024-01-18 | PXD045587 | Pride
Project description:Mycobacterium tuberculosis thrives within macrophages by residing in phagosomes and preventing them from maturing and fusing with lysosomes. A parallel transcriptional survey of intracellular mycobacteria and their host macrophages revealed signatures of heavy metal poisoning. In particular, mycobacterial genes encoding heavy metal efflux P-type ATPases CtpC, CtpG, and CtpV, and host cell metallothioneins and zinc exporter ZnT1, were induced during infection. Consistent with this pattern of gene modulation, we observed a burst of free zinc inside macrophages, and intraphagosomal zinc accumulation within a few hours postinfection. Zinc exposure led to rapid CtpC induction, and ctpC deficiency caused zinc retention within the mycobacterial cytoplasm, leading to impaired intracellular growth of the bacilli. Thus, the use of P(1)-type ATPases represents a M. tuberculosis strategy to neutralize the toxic effects of zinc in macrophages. We propose that heavy metal toxicity and its counteraction might represent yet another chapter in the host-microbe arms race. [Data is also available from http://bugs.sgul.ac.uk/E-BUGS-122]
2012-01-27 | E-BUGS-122 | biostudies-arrayexpress
Project description:Tropical lagoon-inhabiting organisms live in highly irradiated ecosystems and are particularly susceptible to thermal stress resulting from climate change. However, despite living close to their thermal maxima, stress response mechanisms found in these organisms are poorly understood. We used a novel physiological-proteomic approach for sponges to describe the stress response mechanisms of the lagoon-inhabiting sponge Amphimedon navalis, when exposed to elevated seawater temperatures of +2 oC and +4 oC relative to a 26 oC ambient temperature for four weeks. After four weeks of thermal exposure, the buoyant weight of the sponge experienced a significant decline, while its pumping rates and oxygen consumption rates significantly increased. Proteome dynamics revealed 50 differentially abundant proteins in sponges exposed to elevated temperature, suggesting that shifts in the sponge proteome were potential drivers of physiological dysfunction. Thermal stress promoted an increase in detoxification proteins, such as catalase and glutathione-S-transferase, suggesting that an excess of reactive oxygen species in sponge cells were likely responsible for the significant increase in oxygen consumption. Elevated temperature also disrupted cellular growth and cell proliferation, promoting the loss of sponge biomass, and the high abundance of multiple alpha-tubulin chain proteins also indicated an increase in cytoskeletal activities within sponge cells, which may have induced the increase in sponge pumping rate. Our results show that sustained thermal exposure in susceptible lagoonal sponges may induce significant disruption of cellular homeostasis leading to physiological dysfunction, and that a combined physiological-proteomic approach may provide new insights into physiological functions and cellular processes occurring in sponges.
2021-11-15 | PXD027246 | Pride
Project description:In this study transcriptomic data of three life history stages of Orciraptor agilis was generated: 1) Gliding cells in absence of food ('gliding'), 2) Cells attached to the cell wall of its algal prey during perforation ('fattacking'), 3) Cells after acquisition of the algal plastid material ('digesting'). Furthermore, RNA-seq of the algal prey Mougeotia sp. was also performed. A de novo transcriptome assembly of the algal reads was performed in order to identify and substract algal reads of the Orciraptor samples by mapping the Orciraptor reads to the algal transcriptome. After this filtering step the remaining Orciraptor reads from all libraries were pooled for a de novo transcriptome assembly of Orciraptor agilis. This transcriptome was the basis for a comparative transcriptomic study in which transcript expression was compared between the three life history stages.
2022-06-13 | E-MTAB-11291 | biostudies-arrayexpress
Project description:We examined the effect of symbiont identity and heat stress on host metabolome and proteome in the cnidarian-dinoflagellate symbiosis. Exaiptasia diaphana (‘Aiptasia’) was inoculated with its native symbiont (Breviolum minutum) or a non-native symbiont (Symbiodinium microadriaticum; Durusdinium trenchii) and subjected to thermal stress. Host metabolomes were partially distinct at control temperature, however thermal stress caused profiles of anemones containing the two non-native symbionts to become more similar to each other and more distinct from those containing B. minutum. This may reflect symbiont densities; under control conditions, D. trenchii attained 60% and S. microadriaticum 15% of the density attained by B. minutum. At elevated temperature, only D. trenchii-colonised anemones experienced bleaching (60% loss). Combined metabolome and proteome analyses revealed the compounds that make up the thermal response of each symbiosis, either reflecting innate symbiont-specific differences or host-symbiont interactions. We show clear evidence of enhanced nutritional deprivation and cellular stress in hosts harbouring a novel symbiont following temperature stress, independent of the symbiont’s putative thermal resilience. Our findings highlight the physiological limits of partner switching as a means of adaptation to increased temperatures. However, we also offer preliminary evidence suggesting that metabolic functioning of the D. trenchii-Aiptasia association improves over the long-term.
2025-05-07 | PXD055908 | Pride
Project description:Small proteins (SPs) are defined as peptides of 100 amino acids or less encoded by short open reading frames (sORFs). Recent studies have shown that SPs are involved in many important biological processes, including cell signaling, metabolism, growth and so on. However, most of the annotated SPs in almost all species are currently lacking the evidence for protein existence and are regard as missing proteins (MPs). In addition, more and more mis-annotated sORFs have been discovered by proteogenomic methods in human, mice and even the well-characterised Saccharomyces cerevisiae. This reveals a blind spot in traditional gene annotation technology for those SPs-encoding genes. Because SPs are short and generally low abundant, SPs identification using proteomics faces challenges. A deeper coverage of SPs identification may help validate more MPs and discover more potential mis-annotated sORFs. Here, we applied a SPs enrichment-based proteogenomic strategy to Saccharomyces cerevisiae. By integrating four different SPs enrichment methods, we have successfully validated 31 MPs and discovered 3 novel sORFs (YKL104W-A, YHR052C-B and YHR054C-B) which were verified by novel peptide synthesis. In-depth analysis of our SPs enrichment datasets also reveals a series of special physicochemical and biological characteristics of SPs and particular rules of SPs identification. Based on these, we then systematically conclude the difficulties, causes and solutions in SPs identification.
2018-06-15 | PXD008586 | Pride