Evidence map›Paper›PMID 27899504›Full record

ArticlemBio2016

Gene Function Analysis in the Ubiquitous Human Commensal and Pathogen Malassezia Genus.

Giuseppe Ianiri, Anna F Averette, Joanne M Kingsbury, Joseph Heitman, Alexander Idnurm

Open access · goldAbstract read
In one paragraph

Article in mBio, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 54 citations in OpenAlex.

  1. Host skin lipids triggerbioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Frequent transitions in mating-type locus chromosomal organization inProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  9. Frequent transitions in mating-type locus chromosomal organization inbioRxiv : the preprint server for biology · 2023
    Article
  10. The human pathobiontProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  11. Review
  12. Article
  13. Skin Commensal FungusJournal of microbiology and biotechnology · 2021
    Review
  14. Azole resistance mechanisms in pathogenicAntimicrobial agents and chemotherapy · 2021
    Article
  15. Article
  16. Article
  17. HGT in the human and skin commensalProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  18. Article
  19. Article
  20. Frontiers in cellular and infection microbiology · 2020
    Review
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 at 4 institutions in 3 countries.

Giuseppe IaniriDepartment of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA.
Anna F AveretteDepartment of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA.
Joanne M KingsburyDepartment of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA.
Joseph HeitmanDepartment of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA.
Alexander IdnurmSchool of BioSciences, University of Melbourne, Victoria, Australia alexander.idnurm@unimelb.edu.au.
Duke University · USDuke Medical Center · USDuke University Hospital · USThe University of Melbourne · AU

Funding

Structure, function, and evolution of the Cryptococcus MAT locusR01AI050113 · NIAID · DUKE UNIVERSITY · PI HEITMAN, JOSEPH · 2002 to 2024
$8.5M
ROLE OF CALCINEURIN IN C. NEOFORMANS MATING AND FRUITINGR01AI039115 · NIAID · DUKE UNIVERSITY · PI HEITMAN, JOSEPH · 1997 to 2025
$6.7M
Genetics of Cryptococcus sexual reproductionR37AI039115 · NIAID · DUKE UNIVERSITY · PI HEITMAN, JOSEPH · 2011 to 2020
$4.9M
NIAID NIH HHS R01 AI039115NIAID NIH HHS R01 AI050113NIAID NIH HHS R37 AI039115
6 · The paper itself

Abstract

The genus Malassezia includes 14 species that are found on the skin of humans and animals and are associated with a number of diseases. Recent genome sequencing projects have defined the gene content of all 14 species; however, to date, genetic manipulation has not been possible for any species within this genus. Here, we develop and then optimize molecular tools for the transformation of Malassezia furfur and Malassezia sympodialis using Agrobacterium tumefaciens delivery of transfer DNA (T-DNA) molecules. These T-DNAs can insert randomly into the genome. In the case of M. furfur, targeted gene replacements were also achieved via homologous recombination, enabling deletion of the ADE2 gene for purine biosynthesis and of the LAC2 gene predicted to be involved in melanin biosynthesis. Hence, the introduction of exogenous DNA and direct gene manipulation are feasible in Malassezia species. IMPORTANCE: Species in the genus Malassezia are a defining component of the microbiome of the surface of mammals. They are also associated with a wide range of skin disease symptoms. Many species are difficult to culture in vitro, and although genome sequences are available for the species in this genus, it has not been possible to assess gene function to date. In this study, we pursued a series of possible transformation methods and identified one that allows the introduction of DNA into two species of Malassezia, including the ability to make targeted integrations into the genome such that genes can be deleted. This research opens a new direction in terms of now being able to analyze gene functions in this little understood genus. These tools will contribute to define the mechanisms that lead to the commensalism and pathogenicity in this group of obligate fungi that are predominant on the skin of mammals.

Indexed as

Genes, FungalAgrobacterium tumefaciensGene TargetingGenetics, MicrobialMalasseziaMolecular BiologyRecombination, GeneticTransformation, Genetic

Identifiers

PMID27899504
PMCPMC5137500
OpenAlexW2558163095

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.