Evidence map›Paper›PMID 25079497›Full record

ArticleBiology letters2014

The cockroach Blattella germanica obtains nitrogen from uric acid through a metabolic pathway shared with its bacterial endosymbiont.

Rafael Patiño-Navarrete, Maria-Dolors Piulachs, Xavier Belles, Andrés Moya, Amparo Latorre, Juli Peretó

Open access · greenAbstract read
In one paragraph

Article in Biology letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
6.3field-weighted citation impact, top 4% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

28 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
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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

6 authors at 3 institutions in 1 country.

Rafael Patiño-NavarreteInstitutCavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, C/Catedràtic José Beltrán n° 2, Paterna 46980, Spain.
Maria-Dolors PiulachsInstitut de Biologia Evolutiva (Consejo Superior de Investigaciones Científicas and Universitat Pompeu Fabra), Passeig Marítim de la Barceloneta n° 37-49, Barcelona 08003, Spain.
Xavier BellesInstitut de Biologia Evolutiva (Consejo Superior de Investigaciones Científicas and Universitat Pompeu Fabra), Passeig Marítim de la Barceloneta n° 37-49, Barcelona 08003, Spain.
Andrés MoyaInstitutCavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, C/Catedràtic José Beltrán n° 2, Paterna 46980, Spain.
Amparo LatorreInstitutCavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, C/Catedràtic José Beltrán n° 2, Paterna 46980, Spain amparo.latorre@uv.es.
Juli PeretóInstitutCavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, C/Catedràtic José Beltrán n° 2, Paterna 46980, Spain Departament de Bioquímica i Biologia Molecular, Universitat de València, Burjassot 46100, Spain juli.pereto@uv.es.
Parc Científic de la Universitat de València · ESConsejo Superior de Investigaciones Científicas · ESPompeu Fabra University · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Uric acid stored in the fat body of cockroaches is a nitrogen reservoir mobilized in times of scarcity. The discovery of urease in Blattabacterium cuenoti, the primary endosymbiont of cockroaches, suggests that the endosymbiont may participate in cockroach nitrogen economy. However, bacterial urease may only be one piece in the entire nitrogen recycling process from insect uric acid. Thus, in addition to the uricolytic pathway to urea, there must be glutamine synthetase assimilating the released ammonia by the urease reaction to enable the stored nitrogen to be metabolically usable. None of the Blattabacterium genomes sequenced to date possess genes encoding for those enzymes. To test the host's contribution to the process, we have sequenced and analysed Blattella germanica transcriptomes from the fat body. We identified transcripts corresponding to all genes necessary for the synthesis of uric acid and its catabolism to urea, as well as for the synthesis of glutamine, asparagine, proline and glycine, i.e. the amino acids required by the endosymbiont. We also explored the changes in gene expression with different dietary protein levels. It appears that the ability to use uric acid as a nitrogen reservoir emerged in cockroaches after its age-old symbiotic association with bacteria.

Indexed as

Metabolic Networks and PathwaysAmino AcidsAnimalsBacteroidetesBase SequenceBlattellidaeDietary ProteinsFat BodyGene Expression RegulationGenome, InsectMolecular Sequence DataNitrogenSymbiosisUric AcidAmino AcidsDietary ProteinsNitrogenUric AcidasparagineBlattabacteriumglutamineglycinenitrogen metabolismproline

Identifiers

PMID25079497
PMCPMC4126632
OpenAlexW2105084478

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.