Evidence map›Paper›PMID 36165613›Full record

ArticleEnvironmental microbiology2022

Male fertility in Pyricularia oryzae: Microconidia are spermatia.

Alexandre Lassagne, Sylvain Brun, Fabienne Malagnac, Henri Adreit, Joëlle Milazzo, Elisabeth Fournier, Didier Tharreau

Abstract read
In one paragraph

Article in Environmental microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Pyricularia oryzae: Lab star and field scourge.Molecular plant pathology · 2024
    Review
  4. Article
  5. 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

7 authors.

Alexandre LassagnePlant Health Institute of Montpellier (PHIM), CIRAD, Montpellier, France.
Sylvain BrunInstitut Jacques Monod, Université Paris Cité, CNRS, Paris, France.
Fabienne MalagnacInstitute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, Gif-sur-Yvette, France.
Henri AdreitPlant Health Institute of Montpellier (PHIM), CIRAD, Montpellier, France.
Joëlle MilazzoPlant Health Institute of Montpellier (PHIM), CIRAD, Montpellier, France.
Elisabeth FournierPlant Health Institute of Montpellier (PHIM), University of Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France.
Didier TharreauPlant Health Institute of Montpellier (PHIM), CIRAD, Montpellier, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sexual reproduction in Ascomycetes is well described in several model organisms such as Neurospora crassa or Podospora anserina. Deciphering the biological process of sexual reproduction (from the recognition between compatible partners to the formation of zygote) can be a major advantage to better control sexually reproducing pathogenic fungi. In Pyricularia oryzae, the fungal pathogen causing blast diseases on several Poaceae species, the biology of sexual reproduction remains poorly documented. Besides the well-documented production of asexual macroconidia, the production of microconidia was seldom reported in P. oryzae, and their role as male gamete (i.e., spermatia) and in male fertility has never been explored. Here, we characterised the morphological features of microconidia and demonstrated that they are bona fide spermatia. Contrary to macroconidia, microconidia are not able to germinate and seem to be the only male gametes in P. oryzae. We show that fruiting body (perithecium) formation requires microconidia to get in contact with mycelium of strains of opposite mating type, to presumably fertilise the female gametes.

Indexed as

Neurospora crassaPodosporaAscomycotaFertilitySpores, Fungal

Identifiers

PMID36165613
PMCPMC10092719

What OpenQuestion holds

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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.