Evidence map›Paper›PMID 27378203›Full record

ArticleFungal genetics and biology : FG & B2016

Metabolic activity in dormant conidia of Aspergillus niger and developmental changes during conidial outgrowth.

Michaela Novodvorska, Malcolm Stratford, Martin J Blythe, Raymond Wilson, Richard G Beniston, David B Archer

Open access · hybridAbstract read
In one paragraph

Article in Fungal genetics and biology : FG & B, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
4.9field-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

34 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
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  3. Review
  4. Article
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  7. Article
  8. Article
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  11. Microbial Air Quality in Healthcare Facilities.International journal of environmental research and public health · 2021
    Review
  12. Identifying Conserved GenericJournal of fungi (Basel, Switzerland) · 2021
    Article
  13. Article
  14. Journal of fungi (Basel, Switzerland) · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Molecular Mechanisms of Conidial Germination inMicrobiology and molecular biology reviews : MMBR · 2020
    Review
  20. 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

6 authors at 3 institutions in 1 country.

Michaela NovodvorskaSchool of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK. Electronic address: michaela.novodvorska@hotmail.com.
Malcolm StratfordSchool of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK; Mologic Ltd, Bedford Technology Park, Thurleigh, Bedfordshire MK44 2YA, UK. Electronic address: malcolm.stratford@mologic.co.uk.
Martin J BlytheDeep Seq, Faculty of Medicine and Health Sciences, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2RD, UK. Electronic address: martinblythe@hotmail.com.
Raymond WilsonDeep Seq, Faculty of Medicine and Health Sciences, Queen's Medical Centre, University of Nottingham, Nottingham NG7 2RD, UK. Electronic address: raywilsonphotography@googlemail.com.
Richard G BenistonBiological Mass Spectrometry Facility biOMICS, University of Sheffield, Brook Hill Road, Sheffield S3 7HF, UK. Electronic address: rbeniston@hotmail.com.
David B ArcherSchool of Life Sciences, University of Nottingham, Nottingham NG7 2RD, UK. Electronic address: david.archer@nottingham.ac.uk.
University of Nottingham · GBQueen's Medical Centre · GBUniversity of Sheffield · GB

Funding

Biotechnology and Biological Sciences Research Council BB/G016046/1Biotechnology and Biological Sciences Research Council BB/K001744/1
6 · The paper itself

Abstract

The early stages of development of Aspergillus niger conidia during outgrowth were explored by combining genome-wide gene expression analysis (RNAseq), proteomics, Warburg manometry and uptake studies. Resting conidia suspended in water were demonstrated for the first time to be metabolically active as low levels of oxygen uptake and the generation of carbon dioxide were detected, suggesting that low-level respiratory metabolism occurs in conidia for maintenance. Upon triggering of spore germination, generation of CO2 increased dramatically. For a short period, which coincided with mobilisation of the intracellular polyol, trehalose, there was no increase in uptake of O2 indicating that trehalose was metabolised by fermentation. Data from genome-wide mRNA profiling showed the presence of transcripts associated with fermentative and respiratory metabolism in resting conidia. Following triggering of conidial outgrowth, there was a clear switch to respiration after 25min, confirmed by cyanide inhibition. No effect of SHAM, salicylhydroxamic acid, on respiration suggests electron flow via cytochrome c oxidase. Glucose entry into spores was not detectable before 1h after triggering germination. The impact of sorbic acid on germination was examined and we showed that it inhibits glucose uptake. O2 uptake was also inhibited, delaying the onset of respiration and extending the period of fermentation. In conclusion, we show that conidia suspended in water are not completely dormant and that conidial outgrowth involves fermentative metabolism that precedes respiration.

Indexed as

Aspergillus nigerFungal ProteinsOxygenRNA, FungalSorbic AcidSpores, FungalFungal ProteinsOxygenRNA, FungalSorbic AcidAspergillus nigerConidial developmentManometryProteomeRNAseqSorbic acid

Identifiers

PMID27378203
PMCPMC4981222
OpenAlexW2472395919

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.