Temperature and Geographic Location Impact the Distribution and Diversity of Photoautotrophic Gene Variants in Alkaline Yellowstone Hot Springs

Bennett, Annastacia C.; Murugapiran, Senthil K.; Kees, Eric D.; Sauer, Hailey M; Hamilton, Trinity L.

doi:10.1128/spectrum.01465-21

Cited by 8 publications

(8 citation statements)

References 80 publications

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“…The prevalent phyla found in Tangchi hot spring were Bacillota (41.63%) and Aquificota (31.84%).They have also been reported in many moderately alkaline hot springs 21 – 23 . Aquificota belongs to eubacteria, but it is the closest to archaea and eukaryotes, which is a kind of rod-shaped bacteria living in moderate or ultra-high temperature environment 24 .…”

Section: Discussionmentioning

confidence: 89%

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Zhang

Liu

Chen

2023

Sci Rep

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Hot springs are extreme ecological environments of microbes. The study is the first comparative analysis of bacterial diversity of Tangchi and Bantang hot spring water samples collected in Hefei, China, which is conducive to the further development and utilization of microbial resources in hot springs. Illumina MiSeq system was utilized to sequence and analyze the bacterial 16S rRNA gene from hot spring water samples by bioinformatics, to probe into the bacterial abundance and diversity of two hot springs in Hefei. Results revealed that prevalent bacterial phyla in Tangchi hot spring were Bacillota and Aquificota, and the prevalent bacterial genus was Hydrogenobacter; prevalent phyla in Bantang hot spring were Pseudomonadota followed by Actinobacteriota, and prevalent genera were CL500-29_marine_group and Polynucleobacter. More species and higher evenness in Bantang hot spring than those in Tangchi hot spring. In MetaCyc pathway analysis, the major pathways of metabolism existed in the bacteria from the two hot springs were ‘pyruvate fermentation to isobutanol (engineered)’, ‘acetylene degradation’, ‘carbon fixation pathways in prokaryotes’, ‘nitrate reduction I (denitrification)’, ‘methanogenesis from acetate’, ‘superpathway of glucose and xylose degradation’, etc.

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Section: Discussionmentioning

confidence: 89%

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Zhang

Liu

Chen

2023

Sci Rep

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“…Photoenergy autotrophy is a typical nutrient mode of Chloroflexi [40], which can also use simple OM for photoenergy heterotrophic growth under eutrophic conditions [41] and chemical energy heterotrophy under aerobic conditions [42]. Chloroflexi is widely present in soils with a high OM content, while Actinobacteriota is dominant in soils with low OM when other production practices remain the same and can cause the decay of animal or plant remains in soils [43].…”

Section: Heterogeneity Of Bacterial Communities In the Sediments And ...mentioning

confidence: 99%

Differences in Carbon and Nitrogen Migration and Transformation Driven by Cyanobacteria and Macrophyte Activities in Taihu Lake

Han

Hao

Sun

et al. 2022

IJERPH

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The metabolic activities of primary producers play an important role in the migration and transformation of carbon (C) and nitrogen (N) in aquatic environments. This study selected two typical areas in Taihu Lake, a cyanobacteria-dominant area (Meiliang Bay) and a macrophyte-dominant area (in the east area of the lake), to study the effects of cyanobacteria and macrophyte activities on C and N migration and transformation in aquatic environments. The results showed that total N and total particulate N concentrations in the water of the cyanobacteria-dominant area were much higher than those in the macrophyte-dominant area, which was mainly due to the assimilated intracellular N in cyanobacteria. Macrophyte activity drove a significantly higher release of dissolved organic C (DOC) in the water than that driven by cyanobacteria activity, and the DOC contents in the water of the macrophyte-dominant area were 2.4~4.6 times the DOC contents in the cyanobacteria-dominant area. In terms of the sediments, organic matter (OM), sediment total N and N species had positive correlations and their contents were higher in the macrophyte-dominant area than in the cyanobacteria-dominant area. Sediment OM contents in the macrophyte-dominant area increased from 4.19% to 9.33% as the sediment deepened (0~10 cm), while the opposite trend was presented in the sediments of the cyanobacteria-dominant area. Sediment OM in the macrophyte-dominant area may contain a relatively high proportion of recalcitrant OC species, while sediment OM in the cyanobacteria-dominant area may contain a relatively high proportion of labile OC species. Compared with the macrophyte-dominant area, there was a relatively high richness and diversity observed in the bacterial community in the sediments in the cyanobacteria-dominant area, which may be related to the high proportion of labile OC in the OM composition in its sediments. The relative abundances of most OC-decomposing bacteria, denitrifying bacteria, Nitrosomonas and Nitrospira were higher in the sediments of the cyanobacteria-dominant area than in the macrophyte-dominant area. These bacteria in the sediments of the cyanobacteria-dominant area potentially accelerated the migration and transformation of C and N, which may supply nutrients to overlying water for the demands of cyanobacteria growth. This study enhances the understanding of the migration and transformation of C and N and the potential effects of bacterial community structures under the different primary producer habitats.

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“…The physical and chemical properties of the geothermal features of YNP vary widely both by region within YNP and between individual features within the same region. Due to the variety of conditions at YNP, the geothermal sites have been analyzed in terms of not only their extremophile microbial diversity but also as a model for prebiotic chemistry in the Archaean age and as a terrestrial analog site for early Mars in astrobiology research ( Bowen De León et al, 2013 ; Inskeep et al, 2015 ; Jiang, 2015 ; Colman et al, 2016 ; Jiang and Takacs-Vesbach, 2017 ; Tank et al, 2017 ; Gonsior et al, 2018 ; Stone et al, 2018 ; Aerts et al, 2019 ; Bennett et al, 2020 ; Colman et al, 2021 ; Bennett et al, 2022 ; Fernandes-Martins et al, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Comparing microbial populations from diverse hydrothermal features in Yellowstone National Park: hot springs and mud volcanoes

Rowe,

Dowd,

Davidson

et al. 2024

Front. Microbiol.

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Geothermal features, such as hot springs and mud volcanoes, host diverse microbial life, including many extremophile organisms. The physicochemical parameters of the geothermal feature, such as temperature, pH, and heavy metal concentration, can influence the alpha and beta diversity of microbial life in these environments, as can spatiotemporal differences between sites and sampling. In this study, water and sediment samples were collected and analyzed from eight geothermal sites at Yellowstone National Park, including six hot springs, a mud volcano, and an acidic lake within the same week in July 2019, and these geothermal sites varied greatly in their temperature, pH, and chemical composition. All samples were processed and analyzed with the same methodology and taxonomic profiles and alpha and beta diversity metrics determined with 16S rRNA sequencing. These microbial diversity results were then analyzed with respect to pH, temperature, and chemical composition of the geothermal features. Results indicated that predominant microbial species varied greatly depending on the physicochemical composition of the geothermal site, with decreases in pH and increases in dissolved heavy metals in the water corresponding to decreases in alpha diversity, especially in the sediment samples. Similarly, sites with acidic pH values had more similar microbial populations (beta diversity) to one another than to relatively neutral or alkaline pH geothermal sites. This study suggests that pH and/or heavy metal concentration is a more important driver for microbial diversity and population profile than the temperature for these sites and is also the first reported microbial diversity study for multiple geothermal sites in Yellowstone National Park, including the relatively new mud volcano Black Dragon’s Caldron, which erupted in 1948.

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Temperature and Geographic Location Impact the Distribution and Diversity of Photoautotrophic Gene Variants in Alkaline Yellowstone Hot Springs

Cited by 8 publications

References 80 publications

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Comparative analysis of bacterial diversity in two hot springs in Hefei, China

Differences in Carbon and Nitrogen Migration and Transformation Driven by Cyanobacteria and Macrophyte Activities in Taihu Lake

Comparing microbial populations from diverse hydrothermal features in Yellowstone National Park: hot springs and mud volcanoes

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