Thermal stress of Benthic foraminifera microbiome.
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ABSTRACT:
PROVIDER: PRJEB23901 | ENA |
REPOSITORIES: ENA
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Project description:Microbiome across depth in large benthic Foraminifera
| PRJEB24719 | ENA
Project description:The proliferation of coral reef organisms, such as the key ecological engineers and carbonate producers’ large benthic foraminifera (LBF), greatly relies on the mutual association with photosymbiotic algae. With respect to global change impacts such as ocean warming, evaluating stress and acclimatization responses is highly important, but probing proteins and partitioning host and symbionts are major obstacles for studying LBF. We therefore applied a label-free quantitative proteomics approach to LBF holobionts in order to detect changes in the relative abundances of proteins in response to different thermal-stress scenarios. Subsequent identification allowed for the partial assignment of 1,618 proteins to either foraminiferal host or endosymbiotic diatoms. While single and episodic thermal-stress events only induced minor metabolic impacts, chronic thermal stress diminished photosynthesis-related proteins among the symbionts. Stress response and proteolysis-related proteins increased in abundance, illustrating the extent of damage. In contrast to the symbionts, host homeostasis was maintained through extensive repair mechanisms and high protein turnover. Metabolic pathways were adjusted to the symbiont loss by using alternative energy resources. However, linking proteome to physiological data revealed that resource redistribution impairs growth and certainly other functions that could disturb carbonate production. We show how compartment partitioning can give insights into interactions and stress response mechanisms in photosymbiotic reef-calcifiers.
2018-02-27 | PXD008015 | Pride
Project description:Thermal history plays a role in the response of corals to subsequent heat stress. Prior heat stress can have a profound impact on later thermal tolerance, but the mechanism for this plasticity is not clear. The understanding of gene expression changes behind physiological acclimatization is critical in forecasts of coral health in impending climate change scenarios. Acropora millepora fragments were preconditioned to sublethal bleaching threshold stress for a period of 10 days; this prestress conferred bleaching resistance in subsequent thermal challenge, in which non-preconditioned coral bleached. Using microarrays, we analyze the transcriptomes of the coral host, comparing the bleaching-resistant preconditioned treatment to non-preconditioned and control treatments.
2012-11-29 | GSE41435 | GEO
Project description:Thermal history plays a role in the response of corals to subsequent heat stress. Prior heat stress can have a profound impact on later thermal tolerance, but the mechanism for this plasticity is not clear. The understanding of gene expression changes behind physiological acclimatization is critical in forecasts of coral health in impending climate change scenarios. Acropora millepora fragments were preconditioned to sublethal bleaching threshold stress for a period of 10 days; this prestress conferred bleaching resistance in subsequent thermal challenge, in which non-preconditioned coral bleached. Using microarrays, we analyze the transcriptomes of the coral host, comparing the bleaching-resistant preconditioned treatment to non-preconditioned and control treatments. This experiment compared host gene expression of Acropora millepora across control, non-preconditioned, and preconditioned treatments. Fragments were sampled prior to preconditioning (Day 4), following 10 days of thermal preconditioning (Day 20), and after two (Day 23), four (Day 25), and eight days (Day 29) of 31M-BM-0C thermal challenge. The analysis implements 45 arrays, representing 5 sampling points of three treatments (n=3).
2012-11-29 | E-GEOD-41435 | biostudies-arrayexpress
Project description:Arctic charr exposed to acute thermal stress
| PRJNA136745 | ENA
Project description:BbMBF1 played crucial roles in mediating response the prolonged thermal stress, a determinant to the environmental fitness of fungal entomopathogens. We characterized for the first time that disruption of BbMBF1 reduced the mycelial tolerance to the 9-h thermal stress under 40°C. The global transcriptome involved in the response to the thermal stress was analyzed by using high throughput sequencing (RNA-Seq). Our transcriptional profiles revealed that numerous differentially expressed genes (DEGs), of which involved in metabolism, cell transport and cell rescue, were significantly involved in fungal response to the themal stress. 1. Total RNA obtained from BbMBF1 disruption mutant were compared to that of wild type strain under control conditin (free of thermal stress); 2. Total RNA obtained from BbMBF1 disruption mutant were compared to that of WT strain under 9-h thermal stress at 40°C.
2015-11-01 | E-GEOD-52021 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE12809: Symbiodinium clade content drives host transcriptome more than thermal stress in the coral Montastraea faveolata (part 1) GSE15253: Symbiodinium clade content drives host transcriptome more than thermal stress in the coral Montastraea faveolata (part 2) Refer to individual Series
2010-05-18 | E-GEOD-15262 | biostudies-arrayexpress
Project description:BbMBF1 played crucial roles in mediating response the prolonged thermal stress, a determinant to the environmental fitness of fungal entomopathogens. We characterized for the first time that disruption of BbMBF1 reduced the mycelial tolerance to the 9-h thermal stress under 40°C. The global transcriptome involved in the response to the thermal stress was analyzed by using high throughput sequencing (RNA-Seq). Our transcriptional profiles revealed that numerous differentially expressed genes (DEGs), of which involved in metabolism, cell transport and cell rescue, were significantly involved in fungal response to the themal stress.
2015-11-01 | GSE52021 | GEO