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The majority of microorganisms in gas hydrate-bearing subseafloor sediments ferment macromolecules

Overview of attention for article published in Microbiome, March 2023
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  • Good Attention Score compared to outputs of the same age (73rd percentile)

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Title
The majority of microorganisms in gas hydrate-bearing subseafloor sediments ferment macromolecules
Published in
Microbiome, March 2023
DOI 10.1186/s40168-023-01482-5
Pubmed ID
Authors

Chuwen Zhang, Yun-Xin Fang, Xiuran Yin, Hongfei Lai, Zenggui Kuang, Tianxueyu Zhang, Xiang-Po Xu, Gunter Wegener, Jiang-Hai Wang, Xiyang Dong

Abstract

Gas hydrate-bearing subseafloor sediments harbor a large number of microorganisms. Within these sediments, organic matter and upward-migrating methane are important carbon and energy sources fueling a light-independent biosphere. However, the type of metabolism that dominates the deep subseafloor of the gas hydrate zone is poorly constrained. Here we studied the microbial communities in gas hydrate-rich sediments up to 49 m below the seafloor recovered by drilling in the South China Sea. We focused on distinct geochemical conditions and performed metagenomic and metatranscriptomic analyses to characterize microbial communities and their role in carbon mineralization. Comparative microbial community analysis revealed that samples above and in sulfate-methane interface (SMI) zones were clearly distinguished from those below the SMI. Chloroflexota were most abundant above the SMI, whereas Caldatribacteriota dominated below the SMI. Verrucomicrobiota, Bathyarchaeia, and Hadarchaeota were similarly present in both types of sediment. The genomic inventory and transcriptional activity suggest an important role in the fermentation of macromolecules. In contrast, sulfate reducers and methanogens that catalyze the consumption or production of commonly observed chemical compounds in sediments are rare. Methanotrophs and alkanotrophs that anaerobically grow on alkanes were also identified to be at low abundances. The ANME-1 group actively thrived in or slightly below the current SMI. Members from Heimdallarchaeia were found to encode the potential for anaerobic oxidation of short-chain hydrocarbons. These findings indicate that the fermentation of macromolecules is the predominant energy source for microorganisms in deep subseafloor sediments that are experiencing upward methane fluxes. Video Abstract.

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X Demographics

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 27 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 27 100%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 4 15%
Researcher 4 15%
Student > Ph. D. Student 4 15%
Student > Postgraduate 3 11%
Other 1 4%
Other 2 7%
Unknown 9 33%
Readers by discipline Count As %
Agricultural and Biological Sciences 5 19%
Environmental Science 3 11%
Engineering 2 7%
Biochemistry, Genetics and Molecular Biology 1 4%
Chemical Engineering 1 4%
Other 2 7%
Unknown 13 48%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 02 June 2023.
All research outputs
#6,332,257
of 24,900,093 outputs
Outputs from Microbiome
#1,418
of 1,706 outputs
Outputs of similar age
#108,678
of 410,647 outputs
Outputs of similar age from Microbiome
#50
of 67 outputs
Altmetric has tracked 24,900,093 research outputs across all sources so far. This one has received more attention than most of these and is in the 74th percentile.
So far Altmetric has tracked 1,706 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 38.6. This one is in the 16th percentile – i.e., 16% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 410,647 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 73% of its contemporaries.
We're also able to compare this research output to 67 others from the same source and published within six weeks on either side of this one. This one is in the 25th percentile – i.e., 25% of its contemporaries scored the same or lower than it.