Evidence map›Paper›PMID 28264042›Full record

ArticlePloS one2017

Phylogenetic diversity and in situ detection of eukaryotes in anaerobic sludge digesters.

Miri Matsubayashi, Yusuke Shimada, Yu-You Li, Hideki Harada, Kengo Kubota

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Miri MatsubayashiDepartment of Civil and Environmental Engineering, Tohoku University, Sendai, Miyagi, Japan.
Yusuke ShimadaDepartment of Frontier Science for Advanced Environment, Tohoku University, Sendai, Miyagi, Japan.
Yu-You LiDepartment of Civil and Environmental Engineering, Tohoku University, Sendai, Miyagi, Japan.
Hideki HaradaNew Industry Creation Hatchery Center, Tohoku University, Sendai, Miyagi, Japan.
Kengo KubotaDepartment of Civil and Environmental Engineering, Tohoku University, Sendai, Miyagi, Japan.ORCID http://orcid.org/0000-0002-1913-272X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eukaryotic communities in aerobic wastewater treatment processes are well characterized, but little is known about them in anaerobic processes. In this study, abundance, diversity and morphology of eukaryotes in anaerobic sludge digesters were investigated by quantitative real-time PCR (qPCR), 18S rRNA gene clone library construction and catalyzed reporter deposition-fluorescence in situ hybridization (CARD-FISH). Samples were taken from four different anaerobic sludge digesters in Japan. Results of qPCR of rRNA genes revealed that Eukarya accounted from 0.1% to 1.4% of the total number of microbial rRNA gene copy numbers. The phylogenetic affiliations of a total of 251 clones were Fungi, Alveolata, Viridiplantae, Amoebozoa, Rhizaria, Stramenopiles and Metazoa. Eighty-five percent of the clones showed less than 97.0% sequence identity to described eukaryotes, indicating most of the eukaryotes in anaerobic sludge digesters are largely unknown. Clones belonging to the uncultured lineage LKM11 in Cryptomycota of Fungi were most abundant in anaerobic sludge, which accounted for 50% of the total clones. The most dominant OTU in each library belonged to either the LKM11 lineage or the uncultured lineage A31 in Alveolata. Principal coordinate analysis indicated that the eukaryotic and prokaryotic community structures were related. The detection of anaerobic eukaryotes, including the members of the LKM11 and A31 lineages in anaerobic sludge digesters, by CARD-FISH revealed their sizes in the range of 2-8 μm. The diverse and uncultured eukaryotes in the LKM11 and the A31 lineages are common and ecologically relevant members in anaerobic sludge digester.

Indexed as

AnaerobiosisBiodiversityPhylogenyEukaryotaIn Situ Hybridization, FluorescencePolymerase Chain ReactionProkaryotic CellsRNA, Ribosomal, 16SSequence Analysis, DNASewageRNA, Ribosomal, 16SSewage

Identifiers

PMID28264042
PMCPMC5338771

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.