Evidence map›Paper›PMID 31758414›Full record

ArticleJournal of industrial microbiology & biotechnology2020

Apc.LaeA and Apc.VeA of the velvet complex govern secondary metabolism and morphological development in the echinocandin-producing fungus Aspergillus pachycristatus.

Nan Lan, Qun Yue, Zhiqiang An, Gerald F Bills

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Journal of industrial microbiology & biotechnology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

18 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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  3. Regulation ofToxins · 2025
    Article
  4. Engineering of Global Transcriptional Regulators (GTRs) inJournal of fungi (Basel, Switzerland) · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. PrJournal of fungi (Basel, Switzerland) · 2023
    Article
  10. Article
  11. Article
  12. Synthetic and systems biotechnology · 2022
    Article
  13. Itaconic acid production is regulated by LaeA inMetabolic engineering communications · 2022
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Identification of Secondary Metabolites fromMolecules (Basel, Switzerland) · 2020
    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

4 authors at 1 institution in 2 countries.

Nan LanTexas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, 1881 East Road, 3SCR6.4676, Houston, TX, 77054, USA.
Qun YueTexas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, 1881 East Road, 3SCR6.4676, Houston, TX, 77054, USA.ORCID https://orcid.org/0000-0002-1375-8465
Zhiqiang AnTexas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, 1881 East Road, 3SCR6.4676, Houston, TX, 77054, USA.ORCID https://orcid.org/0000-0001-9309-2335
Gerald F BillsTexas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, 1881 East Road, 3SCR6.4676, Houston, TX, 77054, USA. billsge@vt.edu.ORCID http://orcid.org/0000-0003-2352-8417
Brown Foundation · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The impact of the global secondary metabolite regulators LaeA and VeA on echinocandin B production and morphological development was evaluated in the industrial production strain Aspergillus pachycristatus NRRL 11440. Other representative secondary metabolites were examined as well to determine if the velvet complex functions as in A. nidulans and other species of fungi. Genetic methods used for gene manipulations in A. nidulans were applied to A. pachycristatus. Separate deletions of genes Apc.laeA and Apc.veA resulted in similar yet differing phenotypes in strain NRRL 11440. Disruption of Apc.laeA and Apc.veA significantly reduced, but did not eliminate, the production of echinocandin B. Similar to what has been observed in A. nidulans, the production of sterigmatocystin was nearly eliminated in both mutants. Quantitative reverse transcription PCR analyses confirmed that selected genes of both the echinocandin B and sterigmatocystin gene clusters were down-regulated in both mutant types. The two mutants differed with respect to growth of aerial hyphae, pigmentation, development of conidiophores, conidial germination rate, and ascospore maturation. Further functional annotation of key regulatory genes in A. pachycristatus and related Aspergillus species will improve our understanding of regulation of echinocandin production and co-produced metabolites.

Indexed as

Secondary MetabolismAspergillusEchinocandinsFungal ProteinsGene Expression Regulation, FungalGenome, FungalMultigene FamilySpores, Fungalechinocandin BEchinocandinsFungal ProteinsAntifungalEurotialesFermentationNonribosomal peptide synthetaseSterigmatocystin

Identifiers

PMID31758414
OpenAlexW2991335408

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.