Evidence map›Paper›PMID 26483776›Full record

ArticleFrontiers in microbiology2015

Hydrological pulse regulating the bacterial heterotrophic metabolism between Amazonian mainstems and floodplain lakes.

Luciana O Vidal, Gwenäel Abril, Luiz F Artigas, Michaela L Melo, Marcelo C Bernardes, Lúcia M Lobão, Mariana C Reis, Patrícia Moreira-Turcq, Marc Benedetti, Valdemar L Tornisielo and 1 more

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Article in Frontiers in microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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

1 citing paper in PubMed.

  1. Article
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

11 authors.

Luciana O VidalLaboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Rio de Janeiro, Brazil.
Gwenäel AbrilLaboratoire Environnements et Paléoenvironnements Océaniques, Université Bordeaux 1 Bordeaux, France ; Departamento de Geoquímica, Universidade Federal Fluminense Rio de Janeiro, Brazil.
Luiz F ArtigasLaboratoire d'Océanologie et Géosciences, Université du Littoral Côte d'Opale Wimereux, France.
Michaela L MeloDepartamento de Hidrobiologia, Universidade Federal de São Carlos São Carlos, Brazil.
Marcelo C BernardesDepartamento de Geoquímica, Universidade Federal Fluminense Rio de Janeiro, Brazil.
Lúcia M LobãoDepartamento de Biologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora Juiz de Fora, Brazil.
Mariana C ReisDepartamento de Hidrobiologia, Universidade Federal de São Carlos São Carlos, Brazil.
Patrícia Moreira-TurcqInstitut de Recherche pour le Développement, Géosciences Environnement Toulouse Lima, Peru.
Marc BenedettiInstitut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot Paris, France.
Valdemar L TornisieloLaboratório de Ecotoxicologia, Centro de Energia Nuclear e Agricultura, São Paulo Universidade Federal de São Paulo São Paulo, Brazil.
Fabio RolandDepartamento de Biologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora Juiz de Fora, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We evaluated in situ rates of bacterial carbon processing in Amazonian floodplain lakes and mainstems, during both high water (HW) and low water (LW) phases (p < 0.05). Our results showed that bacterial production (BP) was lower and more variable than bacterial respiration, determined as total respiration. Bacterial carbon demand was mostly accounted by BR and presented the same pattern that BR in both water phases. Bacterial growth efficiency (BGE) showed a wide range (0.2-23%) and low mean value of 3 and 6%, (in HW and LW, respectively) suggesting that dissolved organic carbon was mostly allocated to catabolic metabolism. However, BGE was regulated by BP in LW phase. Consequently, changes in BGE showed the same pattern that BP. In addition, the hydrological pulse effects on mainstems and floodplains lakes connectivity were found for BP and BGE in LW. Multiple correlation analyses revealed that indexes of organic matter (OM) quality (chlorophyll-a, N stable isotopes and C/N ratios) were the strongest seasonal drivers of bacterial carbon metabolism. Our work indicated that: (i) the bacterial metabolism was mostly driven by respiration in Amazonian aquatic ecosystems resulting in low BGE in either high or LW phase; (ii) the hydrological pulse regulated the bacterial heterotrophic metabolism between Amazonian mainstems and floodplain lakes mostly driven by OM quality.

Indexed as

Amazonian freshwater ecosystemsbacterial carbon demandbacterial growth efficiencybacterial productionbacterial respirationhydrological pulse

Identifiers

PMID26483776
PMCPMC4588699

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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.