
Type-species-anchored Ureaplasma reconstruction with twelve pleomorphic wall-free cell forms. Representative, non-diagnostic, not visually separable by species, and not a micrograph.
Scientific media record1 verified identifier
- Subject
- Ureaplasmataxon · genus
- Identifiers
- NCBITaxon:2129
- Review
- Editorial review completeIdentifiers authority-verified · Accessibility validated · · ureaplasma|ureaplasma-morphology-v1.webp
- Digital source
- Trained-algorithmic mediaCreated with a trained generative algorithm and reviewed by WikiBiome for subject identity, scientific framing, identifiers, provenance, and accessibility.
- License
- CC BY-SA 4.0Created
Ureaplasma is a genus of wall-less bacteria in the class Mollicutes, comprising two species pathogenic to humans: U. urealyticum and U. parvum. The genus is named for its defining characteristic—obligate Urease activity—which hydrolyzes urea to Ammonia and CO2, providing the organism's primary energy source.
This urease is nickel-dependent, making Ureaplasma directly relevant to the metal-microbiome axis in WikiBiome.
Evidence map8 cited passagesInspect provenance +
Nickel restriction could theoretically inhibit Ureaplasma colonization by starving the urease of its essential cofactor.
In preterm infants, nickel availability in the gut may influence Ureaplasma colonization and NEC risk.
Ureaplasma is one of the most common organisms in the male urogenital tract, colonizing the urethra, prostate, and seminal fluid.
Implicated in chronic prostatitis (Category III/IV), where it may persist intracellularly.
Associated with male infertility through sperm membrane damage (ammonia toxicity), increased ROS production, and impaired motility.
Present in vaginal and cervical microbiomes, with abundance shifts in endometriosis patients.
Part of the altered reproductive tract microbiome in endometriosis.
Ureaplasma colonization in preterm infants is associated with bronchopulmonary dysplasia and may contribute to NEC risk, potentially through ammonia-mediated mucosal injury.
Metal Dependencies—Nickel Urease#
Ureaplasma's urease is a nickel (Ni)-iron (Fe) metalloenzyme that is absolutely required for growth—without urease activity, Ureaplasma cannot generate ATP. This creates a clear Achilles' heel (Karen's Brain Primitive 4):
- Nickel restriction could theoretically inhibit Ureaplasma colonization by starving the urease of its essential cofactor.[1]Role of Nickel in Microbial PathogenesisRobert J. Maier, Stéphane L. Benoit · 2019Open reference 1 ↓
- Ureaplasma shares nickel dependency with other urease-producing pathogens in this wiki (Helicobacter pylori, Proteus mirabilis), suggesting convergent vulnerability to nickel-targeting interventions.
- In preterm infants, nickel availability in the gut may influence Ureaplasma colonization and NEC risk.[2]Nickel as a Catalytic Driver of Necrotizing Enterocolitis: Dietary Nickel, Microbial Metallomics, and the Activation of Nickel-Dependent Virulence Pathways in the Preterm GutKaren Pendergrass · 2026Open reference 2 ↓
The ammonia generated by urease activity raises local pH, which may contribute to. Urinary stone formation (struvite stones in UTI). Vaginal pH disruption (favoring BV-associated organisms).
Mucosal tissue damage in the reproductive tract.
Reproductive Tract Ecology#
Male Reproductive Tract#
Ureaplasma is one of the most common organisms in the male urogenital tract, colonizing the urethra, prostate, and seminal fluid.[3]Molina Morales 2023 — The Microbiome of the Male Reproductive Tract: Uncovering Its Composition and OriginsNerea Molina Morales · 2023Open reference 3 ↓[4]Magill 2023 — Male Infertility and the Human MicrobiomeMagill RG, MacDonald SM · 2023Open reference 4 ↓
Implicated in chronic prostatitis (Category III/IV), where it may persist intracellularly.[5]Magri 2018 — Multidisciplinary Approach to ProstatitisVittorio Magri, Matteo Boltri, Tommaso Cai et al. · 2018Open reference 5 ↓
Associated with male infertility through sperm membrane damage (ammonia toxicity), increased ROS production, and impaired motility.[6]Neto 2024 — Effect of Environmental Factors on Seminal Microbiome and Impact on Sperm QualityFilipe T. Lira Neto, Marina C. Viana, Federica Cariati et al. · 2024Open reference 6 ↓
Female Reproductive Tract#
Present in vaginal and cervical microbiomes, with abundance shifts in endometriosis patients.[7]Shen 2022 — Vaginal Microecological Characteristics of Women in Different Physiological and Pathological PeriodsLiping Shen, Wei Zhang, Yi Yuan et al. · 2022Open reference 7 ↓[8]Ata 2019 — The Endobiota Study: Comparison of Vaginal, Cervical and Gut Microbiota Between Women with Stage 3/4 Endometriosis and Healthy ControlsBaris Ata, Sule Yildiz, Engin Turkgeldi et al. · 2019Open reference 8 ↓[9]Hernandes 2020 — Microbiome Profile of Deep Endometriosis Patients: Comparison of Vaginal Fluid, Endometrium and LesionCamila Hernandes, Paola Silveira, Aline Fernanda Rodrigues Sereia et al. · 2020Open reference 9 ↓[10]MacSharry 2024 — Endometriosis Specific Vaginal Microbiota Links to Urine and Serum N-GlycomeJohn MacSharry, Zsuzsanna Kovacs, Yongjing Xie et al. · 2024Open reference 10 ↓
Part of the altered reproductive tract microbiome in endometriosis.[11]Miyashira 2022 — The Microbiome and EndometriosisCarlos H Miyashira, Fernanda Reali Oliveira, Marina Paula Andres et al. · 2022Open reference 11 ↓
Neonatal#
- Ureaplasma colonization in preterm infants is associated with bronchopulmonary dysplasia and may contribute to NEC risk, potentially through ammonia-mediated mucosal injury.[2]Nickel as a Catalytic Driver of Necrotizing Enterocolitis: Dietary Nickel, Microbial Metallomics, and the Activation of Nickel-Dependent Virulence Pathways in the Preterm GutKaren Pendergrass · 2026Open reference 2 ↓
Cross-References#
- Nickel—nickel-dependent urease as essential virulence factor
- Nickel-urease—the enzyme class shared with H. pylori
- Helicobacter pylori—shares nickel-urease dependency
- Proteus mirabilis—another nickel-urease-dependent urogenital pathogen
- Endometriosis—vaginal/cervical microbiome associations
- Necrotizing Enterocolitis—preterm colonization risk
- Nutritional Immunity (Metal Sequestration)—nickel restriction as theoretical intervention target
References 11
Numbered by first appearance in the article, then reconciled with its declared source list.
- 1
★Robert J. Maier, Stéphane L. Benoit (2019). Role of Nickel in Microbial Pathogenesis. Inorganics.
- 2
Karen Pendergrass (2026). Nickel as a Catalytic Driver of Necrotizing Enterocolitis: Dietary Nickel, Microbial Metallomics, and the Activation of Nickel-Dependent Virulence Pathways in the Preterm Gut. Zenodo Preprint.
- 3
Nerea Molina Morales (2023). Molina Morales 2023 — The Microbiome of the Male Reproductive Tract: Uncovering Its Composition and Origins. Doctoral Thesis, Universidad de Granada.
- 4
Magill RG, MacDonald SM (2023). Magill 2023 — Male Infertility and the Human Microbiome. Frontiers in Reproductive Health.
- 5
Vittorio Magri, Matteo Boltri, Tommaso Cai et al. (2018). Magri 2018 — Multidisciplinary Approach to Prostatitis. Archivio Italiano di Urologia e Andrologia.
- 6
Filipe T. Lira Neto, Marina C. Viana, Federica Cariati et al. (2024). Neto 2024 — Effect of Environmental Factors on Seminal Microbiome and Impact on Sperm Quality. Frontiers in Endocrinology.
- 7
Liping Shen, Wei Zhang, Yi Yuan et al. (2022). Shen 2022 — Vaginal Microecological Characteristics of Women in Different Physiological and Pathological Periods. Frontiers in Cellular and Infection Microbiology.
- 8
Baris Ata, Sule Yildiz, Engin Turkgeldi et al. (2019). Ata 2019 — The Endobiota Study: Comparison of Vaginal, Cervical and Gut Microbiota Between Women with Stage 3/4 Endometriosis and Healthy Controls. Scientific Reports.
- 9
Camila Hernandes, Paola Silveira, Aline Fernanda Rodrigues Sereia et al. (2020). Hernandes 2020 — Microbiome Profile of Deep Endometriosis Patients: Comparison of Vaginal Fluid, Endometrium and Lesion. Diagnostics.
- 10
John MacSharry, Zsuzsanna Kovacs, Yongjing Xie et al. (2024). MacSharry 2024 — Endometriosis Specific Vaginal Microbiota Links to Urine and Serum N-Glycome. Scientific Reports.
- 11
Carlos H Miyashira, Fernanda Reali Oliveira, Marina Paula Andres et al. (2022). Miyashira 2022 — The Microbiome and Endometriosis. Reproduction and Fertility.
Article network
Connect the evidence
Publicly readable discussion by ORCID-authenticated researchers. Questions, interpretation, methods, corrections, and new evidence stay attached to this record.
No discussion yet. Start with a precise question or a source-backed observation.
Activity and accepted changes
Accepted researcher context, editorial status, public discussion, and upstream Git revisions are shown together. Pending, declined, and withdrawn proposals remain private.
- published revision
Complete reviewed Urease contextual coverage
Karen Pendergrass · +2 −2
Inspect exact Git diff ↗ - published revision
Add reviewed Ammonia concept coverage
Karen Pendergrass · +2 −2
Inspect exact Git diff ↗ - published revision
massive wiki expansion: 149 stubs fixed, 100+ new pages, Rule 15 scan, keystone papers
WikiBiome Deploy Bot · +76 −0
Inspect exact Git diff ↗

