Metagenomic Features Characterized with Microbial Iron Oxidoreduction and Mineral Interaction in Southwest Indian Ridge DOI Creative Commons
Ying-Wen Zhong, Peng Zhou, Hong Cheng

et al.

Microbiology Spectrum, Journal Year: 2022, Volume and Issue: 10(6)

Published: Oct. 26, 2022

The Southwest Indian Ridge (SWIR) is one of the typical representatives deep-sea ultraslow-spreading ridges, and has increasingly become a hot spot studying subsurface geological activities mining management. However, understanding microbial still limited on active hydrothermal vent chimneys in SWIR. In this study, samples from an black smoker diffuse located Longqi region were collected for deep metagenomic sequencing, which yielded approximately 290 GB clean data 295 mid-to-high-quality metagenome-assembled genomes (MAGs). Sulfur oxidation conducted by variety Gammaproteobacteria, Alphaproteobacteria, Campylobacterota was presumed to be major energy source chemosynthesis vents. Diverse iron-related microorganisms recovered, including iron-oxidizing Zetaproteobacteria, iron-reducing

Language: Английский

Seafloor incubation experiments at deep-sea hydrothermal vents reveal distinct biogeographic signatures of autotrophic communities DOI Creative Commons
Heather Fullerton,

Lindsey Smith,

Alejandra Enríquez

et al.

FEMS Microbiology Ecology, Journal Year: 2024, Volume and Issue: 100(2)

Published: Jan. 9, 2024

The discharge of hydrothermal vents on the seafloor provides energy sources for dynamic and productive ecosystems, which are supported by chemosynthetic microbial populations. These populations use gained oxidizing reduced chemicals contained within vent fluids to fix carbon support multiple trophic levels. Hydrothermal is ephemeral chemical composition such varies over space time, can result in geographically distinct communities. To investigate foundational members community, growth chambers were placed at Axial Seamount (Juan de Fuca Ridge), Magic Mountain (Explorer Kama'ehuakanaloa (Hawai'i hotspot). Campylobacteria identified nascent communities, but different amplicon sequence variants present Seamounts, indicating that geography addition effluent influences community development. Across these locations, dissolved iron concentration was strongest driver structure. results provide insights into structure shed light development diverse lithotrophic communities vents.

Language: Английский

Citations

5
Seagrass vegetation affect the vertical organization of microbial communities in sediment DOI

Yanyu Sun,

Zenglei Song, Haikun Zhang

et al.

Marine Environmental Research, Journal Year: 2020, Volume and Issue: 162, P. 105174 - 105174

Published: Oct. 7, 2020

Language: Английский

Citations

39
Research is needed to inform environmental management of hydrothermally inactive and extinct polymetallic sulfide (PMS) deposits DOI Creative Commons
Cindy Lee Van Dover, Ana Colaço, Patrick C. Collins

et al.

Marine Policy, Journal Year: 2020, Volume and Issue: 121, P. 104183 - 104183

Published: Aug. 20, 2020

Polymetallic sulfide (PMS) deposits produced at hydrothermal vents in the deep sea are of potential interest to miners. Hydrothermally active ecosystems valued for extraordinary chemosynthetic communities that they support. Many countries, including Canada, Portugal, and United States, protect vent their Exclusive Economic Zones. When activity ceases temporarily (dormancy) or permanently (extinction), habitat associated ecosystem change dramatically. Until recently, so-called "inactive sulfide" habitats, either dormant extinct, received little attention from biologists. However, need environmental management deep-sea mining places new imperatives building scientific understanding structure function inactive PMS deposits. This paper calls actions community emergent seabed industry i) undertake fundamental ecological descriptions study functions services with hydrothermally deposits, ii) evaluate risks through research, iii) identify needs may enable Mining some extinct have reduced risk compared other activities, but this must be validated research on a case-by-case basis.

Language: Английский

Citations

35
Contrasting controls on seasonal and spatial distribution of marine cable bacteria (Candidatus Electrothrix) and Beggiatoaceae in seasonally hypoxic Chesapeake Bay DOI Creative Commons
Sairah Y. Malkin, Pinky Liau, Carol Kim

et al.

Limnology and Oceanography, Journal Year: 2022, Volume and Issue: 67(6), P. 1357 - 1373

Published: April 18, 2022

Abstract Marine cable bacteria ( Candidatus Electrothrix ) and large colorless sulfur‐oxidizing (e.g., Beggiatoaceae) are widespread thiotrophs in coastal environments but may exert different influences on biogeochemical cycling. Yet, the factors governing their niche partitioning remain poorly understood. To map distribution evaluate growth constraints a natural setting, we examined surface sediments across seasons at two sites with contrasting levels of seasonal oxygen depletion Chesapeake Bay using microscopy coupled 16S rRNA gene amplicon sequencing characterization. We found that bacteria, dominated by single phylotype closely affiliated to communis, flourished during winter spring central channel site which experiences summer anoxia. Here, density was positively correlated sediment chlorophyll, proxy phytodetritus sedimentation. Cable were also present lower areal an adjacent shoal supports bioturbating macrofauna. Beggiatoaceae more abundant this site, where biomass respiration, additionally potentially inhibited sulfide accumulation evident one summer. A springtime sedimentation event associated proliferation multiple phylotypes, reaching 1000 m length cm −2 . These observations indicate potential impact bloom driving hot moment cryptic sulfur Our results suggest complex interactions between benthic thiotroph populations, bioturbation oscillations bottom water dissolved oxygen, sulfide, organic matter influx as important drivers distribution.

Language: Английский

Citations

20
Community- and genome-based evidence for a shaping influence of redox potential on bacterial protein evolution DOI Creative Commons
Jeffrey M. Dick, Delong Meng

mSystems, Journal Year: 2023, Volume and Issue: 8(3)

Published: June 8, 2023

Despite deep interest in how environments shape microbial communities, whether redox conditions influence the sequence composition of genomes is not well known. We predicted that carbon oxidation state (

Language: Английский

Citations

11
Deep-sea microorganisms-driven V5+ and Cd2+ removal from vanadium smelting wastewater: Bacterial screening, performance and mechanism DOI

Ruiyu Ma,

Yali Feng, Haoran Li

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 360, P. 124599 - 124599

Published: July 24, 2024

Language: Английский

Citations

4
Comparative analysis of esophageal gland microbes between two body sizes of Gigantopelta aegis , a hydrothermal snail from the Southwest Indian Ridge DOI Creative Commons

Anning Mou,

Xinglong Li, Li Zhong

et al.

Microbiology Spectrum, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

ABSTRACT Microbial communities within animals provide nutritional foundation and energy supply for the hydrothermal ecosystem. The peltospirid snail Gigantopelta aegis forms large aggregation in Longqi vent field on Southwest Indian Ridge. This endemic species is characterized by a changeable diet morphology, especially reflected internal organs such as remarkably enlarged esophageal glands. Here, 16S full-length rRNA gene analysis was performed to compare variations gland microbiota between two body size groups (small large) of G. . Phyla Proteobacteria Bacteroidetes were dominant featured bacteria contributing microbial community. No significant differences small revealed diversity index principal component (PCA) clustering. relative abundance bacteria. Compared with small-sized snails, larger ones housed more Thiogranum (9.94% 34.86%) fewer Sediminibacterium (29.38% 4.54%). Functional prediction all showed that pathways related metabolism appeared highly abundant smaller However, ones, most distinctive those environmental information processing. Facultative symbiotic Sulfurovum marked core node co-occurrence network suggested an influence habitat selection fields. In summary, composition potential functions possibly changes anatomical structure dietary habits These shared capabilities supplementation ecological niche expansion host, potentially key adaptation survival. IMPORTANCE Dominant Ridge, observed undergo unique morphological shifts known cryptometamorphosis. During this process, developed specialized bacteria-housing organ, gland, later life stages. Our research discovered microbes different snails. closely development health Full-length , suggesting association adaptation. group, enriched metabolism, while individuals, predictions indicated adaptive Also, could be one factors influencing Understanding complex relationship benthic macrofauna helps us describe mechanisms survival extreme environments.

Language: Английский

Citations

0
Unique gastropods dominate the fauna on inactive vent sulfide features in the eastern Pacific DOI
Shanshan Ma,

Blumenfeld Dennis E.,

Matthew W. Mitchell

et al.

Deep Sea Research Part I Oceanographic Research Papers, Journal Year: 2025, Volume and Issue: unknown, P. 104475 - 104475

Published: March 1, 2025

Language: Английский

Citations

0
Genome-wide identification of TRAF family genes in Urechis unicinctus (Annelida, Echiura) and their responses in resistance to high temperature stress DOI

Dawei Lin,

Wenwen Jiang,

Yuxin Feng

et al.

Comparative Biochemistry and Physiology Part D Genomics and Proteomics, Journal Year: 2025, Volume and Issue: 55, P. 101516 - 101516

Published: April 18, 2025

Language: Английский

Citations

0
Diversity of Microbial Metal Sulfide Biomineralization DOI
Yeseul Park, Damien Faivre

ChemPlusChem, Journal Year: 2021, Volume and Issue: 87(1)

Published: Nov. 30, 2021

Since the emergence of life on Earth, microorganisms have contributed to biogeochemical cycles. Sulfate-reducing bacteria are an example widespread that participate in metal and sulfur cycles by biomineralization biogenic sulfides. In this work, we review microbial sulfide particles summarize distinctive features from exemplary cases. We highlight is highly metal- organism-specific. The properties biominerals depend degree cellular control environmental factors, such as pH, temperature, concentration metals. Moreover, macromolecules, including peptides proteins, help cells their extracellular intracellular environments regulate biomineralization. Accordingly, exhibit unique when compared abiotic minerals or produced dead cell debris.

Language: Английский

Citations

27