ArticleThe Journal of eukaryotic microbiology
Peroxisome proliferation in Foraminifera inhabiting the chemocline: an adaptation to reactive oxygen species exposure?
Article in The Journal of eukaryotic microbiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Unravelling Evolutionary and Ecological Insights of Foraminifera by Using Next Generation Sequencing: A Review.Biochemical genetics · 2026Review
- Array of metabolic pathways in a kleptoplastidic foraminiferan protist supports chemoautotrophy in dark, euxinic seafloor sediments.The ISME journal · 2025Article
- Sediment eDNA metabarcoding reveals the endemism in benthic foraminifera from Arctic methane cold seepages.ISME communications · 2025Article
- Multiple integrated metabolic strategies allow foraminiferan protists to thrive in anoxic marine sediments.Science advances · 2021Article
- Abundant Chitinous Structures in Chilostomella (Foraminifera, Rhizaria) and Their Potential Functions.The Journal of eukaryotic microbiology · 2021Article
- Nanoparticle-Biological Interactions in a Marine Benthic Foraminifer.Scientific reports · 2019Article
- Keystone Arctic paleoceanographic proxy association with putative methanotrophic bacteria.Scientific reports · 2018Article
- Intracellular Isotope Localization in Ammonia sp. (Foraminifera) of Oxygen-Depleted Environments: Results of Nitrate and Sulfate Labeling Experiments.Frontiers in microbiology · 2016Article
- Cytological Observations of the Large Symbiotic Foraminifer Amphisorus kudakajimensis Using Calcein Acetoxymethyl Ester.PloS one · 2016Article
- Effects of lead pollution on Ammonia parkinsoniana (foraminifera): ultrastructural and microanalytical approaches.European journal of histochemistry : EJH · 2015Article
- Benthic protists and fungi of Mediterranean deep hypsersaline anoxic basin redoxcline sediments.Frontiers in microbiology · 2014Article
- Peroxisome diversity and evolution.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2010Review
- Rapid peroxisomal responses to ROS suggest an alternative mechanistic model for post-biogenesis peroxisomal life cycle in plants.Plant signaling & behavior · 2009Article
- Different Elemental Compositions and Potential Functions of Vacuoles in Bolivina spissa (Foraminifera, Rhizaria) Based on Cryo-SEM-EDS Analyses.The Journal of eukaryotic microbiologyArticle
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Authors and funding
2 authors.
Funding
Abstract
Certain foraminiferal species are abundant within the chemocline of marine sediments. Ultrastructurally, most of these species possess numerous peroxisomes complexed with the endoplasmic reticulum (ER); mitochondria are often interspersed among these complexes. In the Santa Barbara Basin, pore-water bathing Foraminifera and co-occurring sulfur-oxidizing microbial mats had micromolar levels of hydrogen peroxide (H(2)O(2)), a reactive oxygen species that can be detrimental to biological membranes. Experimental results indicate that adenosine triphosphate concentrations are significantly higher in Foraminifera incubated in 16 microM H(2)O(2) than in specimens incubated in the absence of H(2)O(2). New ultrastructural and experimental observations, together with published results, lead us to propose that foraminiferans can utilize oxygen derived from the breakdown of environmentally and metabolically produced H(2)O(2). Such a capability could explain foraminiferal adaptation to certain chemically inhospitable environments; it would also force us to reassess the role of protists in biogeochemistry, especially with respect to hydrogen and iron. The ecology of these protists also appears to be tightly linked to the sulfur cycle. Finally, given that some Foraminifera bearing peroxisome-ER complexes belong to evolutionarily basal groups, an early acquisition of the capability to use environmental H(2)O(2) could have facilitated diversification of foraminiferans during the Neoproterozoic.
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