Effects of Physiochemical Factors on Prokaryotic Biodiversity in Malaysian Circumneutral Hot Springs

Chan, Chia Sing; Chan, Kok-Gan; Ee, Robson; Hong, Kar‐Wai; Urbieta, María Sofía; Donati, Edgardo R.; Shamsir, Mohd Shahir; Goh, Kian Mau

doi:10.3389/fmicb.2017.01252

Cited by 60 publications

(68 citation statements)

References 72 publications

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“…Medrano-Santillana et al found that the bacterial communities in volcanic soils were characterized by the prevalence of Firmicutes, Proteobacteria, and Actinobacteria [65,66]. The same phyla were disclosed in this study, along with others, such as Planctomycetes and Bacteroidetes, in agreement with other studies showing that members of these phyla have been found in a wide variety of environments, confirming their strong versatility.…”

Section: Bacterial Communities Studysupporting

confidence: 91%

Bacterial Communities from Extreme Environments: Vulcano Island

et al. 2019

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Although volcanoes represent extreme environments for life, they harbour bacterial communities. Vulcano Island (Aeolian Islands, Sicily) presents an intense fumarolic activity and widespread soil degassing, fed by variable amounts of magmatic gases (dominant at La Fossa Crater) and hydrothermal fluids (dominant at Levante Bay). The aim of this study is to analyse the microbial communities from the different environments of Vulcano Island and to evaluate their possible correlation with the composition of the gas emissions. Microbial analyses were carried out on soils and pioneer plants from both La Fossa Crater and Levante Bay. Total DNA has been extracted from all the samples and sequenced through Illumina MiSeq platform. The analysis of microbiome composition and the gases sampled in the same sites could suggest a possible correlation between the two parameters. We can suggest that the ability of different bacterial genera/species to survive in the same area might be due to the selection of particular genetic traits allowing the survival of these microorganisms. On the other side, the finding that microbial communities inhabiting different sites exhibiting different emission profiles are similar might be explained on the basis of a possible sharing of metabolic abilities related to the gas composition.

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Section: Bacterial Communities Studysupporting

confidence: 91%

Bacterial Communities from Extreme Environments: Vulcano Island

et al. 2019

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“…DG devised the topic, supervised paper structure and data collection, conducted literature search, created figures and wrote the paper. et al, 1977;Kavak and Karadogan, 2012;Pontefract et al, 2017;Tambekar et al, 2010 Terrestrial hot springs/geothermal waters 15 -270 0.02 -9.8 0.1 -7.2 b 0.0002saturation Chan et al, 2017;Delmelle and Bernard, 1994;Namsaraev et al, 2003;Qi et al, 2017;Taran, 2009 Polar environments -98.6 -24.3 4.6 -9.6 0.1 -35.5 c 0 -40.2 Aislabie et al, 2006;Dickson et al, 2013;Samarkin et al, 2010;Scambos et al, 2018;Siegert et al, 2001 Deep-sea floor and trenches -1.9 -13.8 d 7.3 -8.1 2.1 -112 3.4 -3.9 Danovaro et al, 2010;Emeis et al, 1996;Mantyla and Reid, 1983 Deep-sea hydrothermal vents < 1 e -464 4 -11 2.1 -50.7 0.1 -8 Konn et al, 2009;Koschinsky et al, 2008;McDermott et al, 2018 Deep hypersaline anoxic basins 10 -65 5.4 -8.6 2.1 -40.5 4 -50 f Karbe, 1986;Mapelli et al, 2017;Merlino et al, 2018;Yakimov et al, 2013Yakimov et al, , 2015 Subsurface ecosystems 3.25 -< 400 g~1 -12.8 < 800 h 0.05 -saturation i Becker et al, 1984;Frank et al, 2016;Lechmann et al, 2014;Prieto et al, 2017;Roadcap et al, 2006;Waldron et al, 2007 Deserts j -19.4 -70 6.8 -10 nr 0.02 -30.8 Dion et al, 2008;…”

Section: Future Directions and Outlookmentioning

confidence: 99%

Living at the Extremes: Extremophiles and the Limits of Life in a Planetary Context

Merino¹,

Aronson²,

Bojanova³

et al. 2019

Preprint

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Prokaryotic life has dominated most of the evolutionary history of our planet, evolving tooccupy virtually all available environmental niches. Extremophiles, especially those thrivingunder multiple extremes, represent a key area of research for multiple disciplines, spanningfrom the study of adaptations to harsh conditions, to the biogeochemical cycling of elements.Extremophile research also has implications for origin of life studies and the search for life onother planetary and celestial bodies. In this article, we will review the current state ofknowledge for the biospace in which life operates on Earth and will discuss it in a planetarycontext, highlighting knowledge gaps and areas of opportunity.

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“…Worthy of note is that the phylum Fusobacteria, a group of gram-negative non spore formers, were found but not exclusively in the Ikogosi Warm Spring. This bacterial phylum was also reported as part of the prokaryotic biodiversity of a Malaysian circumneutral hot springs [41].…”

Section: Discussionmentioning

confidence: 73%

Analysis of a Tropical Warm Spring Microbiota Using 16S rRNA Metabarcoding

Fasesan¹,

Dawkins²,

Ramírez³

et al. 2020

AiM

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The Ikogosi Warm Spring is a unique ecological niche in Western Nigeria with an average temperature and pH of 38˚C and 5.8 respectively. It mixes with an adjacent cold spring (28˚C & pH 7.6), about 100 meters from source, yielding a confluence body of water of 32˚C and pH 7.7. To explore the bacterial community structure of this uncommon environment and to scan for potentially useful bacteria, metagenomes extracted directly from five samples (source and mid-point of warm spring; source and midpoint of cold spring, and the confluence) were analyzed. Using the MiSeq Illumina next generation sequencing protocols, the V3-V4 region of the 16S rRNA gene pool was sequenced and analyzed by QIIME (Quantitative Insights into Microbial Ecology) and R software. At least 11% (47,446) of all the sequences were unknown to any of the databases employed. Bacterial diversity and abundance at the source of both springs were extremely low, accounting for less than 0.07% of the total sequence reads at the confluence, 100 m downstream. In contrast to the highly diversified mesophilic confluence community where 21 different phyla were identified, only 4 and 5 phyla were recovered from the source-point of the warm spring and cold spring respectively. The most prevalent phyla in all samples were members of the versatile Proteobacteria (35%-50% relative abundance), and the hardy Firmicutes (33%-40%). Operational taxonomic units (OTUs) obtained from all the samples averaged at 1414. Temperature and pH were equally significant predictors of genomic diversity and richness, with the warm and cold spring sources having less than 5 bacteria phyla. Exiguobacterium sp. (a potential plastic degrader) and other deep rooted bacteria were found in the warm spring while the cold spring outflow contained among others such asRubrobacter sp. and Chloroflexi sp. (which is close to the phylogenetic root of the domain Bacteria

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Effects of Physiochemical Factors on Prokaryotic Biodiversity in Malaysian Circumneutral Hot Springs

Cited by 60 publications

References 72 publications

Bacterial Communities from Extreme Environments: Vulcano Island

Bacterial Communities from Extreme Environments: Vulcano Island

Living at the Extremes: Extremophiles and the Limits of Life in a Planetary Context

Analysis of a Tropical Warm Spring Microbiota Using 16S rRNA Metabarcoding

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