Glomerales

Short description: Order of fungi

Glomerales

Temporal range: 460–0 Ma

PreЄ

File:Glomus mosseae.tif
Glomus mosseae
Scientific classification
Kingdom:  | Fungi
Division:  | Glomeromycota
Class:  | Glomeromycetes
Order:  | Glomerales
Morton & Benny, 1990[1]
Families and genera

Glomeraceae

* Funneliformis
* Funneliformis caledonius
* Funneliformis coronatus
* Funneliformis mosseae
* Glomus
* Glomus cerebriforme
* Glomus macrocarpum
* Palaeoglomus↑
* Palaeoglomus boullardi↑
* Palaeoglomus grayi†
* Palaeoglomus strotheri†
* Rhizophagus
* Rhizophagus clarus
* Rhizophagus intraradices
* Rhizophagus irregularis
* Rhizophagus proliferus
* Sclerocystis
* Septoglomus
* Septoglomus constrictum

Claroideoglomeraceae

* Claroideoglomus
* Claroideoglomus claroideum
* Claroideoglomus drummondii
* Claroideoglomus etunicatum
* Claroideoglomus luteum
* Claroideoglomus walkeri

Synonyms

Glomales

Glomerales is an order of symbiotic fungi within the phylum Glomeromycota.

## Contents

* 1 Biology
* 2 Phylogeny
* 3 Meiosis
* 4 Orthography
* 5 See also
* 6 References

## Biology

These fungi are all biotrophic mutualists. Most employ the arbuscular mycorrhizal method of nutrient exchange with plants. They produce large (.1-.5mm) spores (azygospores and chlamydospores) with thousands of nuclei.[2]

## Phylogeny

All members of their phylum were once thought to be related to the Endogonaceae, but have been found through molecular sequencing data, to be a closer relation to the Dikarya.[3] Their fossil record extends back to the Ordovician period (460 million years ago).[2]

## Meiosis

Glomerales fungi were thought to have reproduced clonally for several hundred million years and are therefore an ancient asexual lineage.[4] However, homologs of 51 meiotic genes, including seven genes specific for meiosis, were found to be conserved in the genomes of four Glomus species.[4] Thus it now appears that these supposedly ancient asexual fungi may be capable of meiosis and perhaps also of a cryptic sexual or parasexual cycle.[4]

## Orthography

The family name Glomeraceae upon which this order level name is based, was incorrectly spelled 'Glomaceae', hence the order name was incorrectly spelled 'Glomales'. Both are correctable errors, to Glomeraceae and Glomerales, as governed by the International Code of Botanical Nomenclature. The incorrect spellings are commonplace in the literature, unfortunately.

## See also

* Glomalin

## References

1. ↑ J.B. Morton (1990). "Revised classification of the arbuscular mycorrhizal fungi (Zycomycetes): a new order, Glomales, two new families, Acaulosporaceae and Gigasporaceae, with an emendation of Glomaceae". Mycotaxon 37: 473.
2. ↑ 2.0 2.1 C.J. Alexopolous, C.W. Mims & M. Blackwell (2004). Introductory Mycology (4th ed.). Hoboken NJ: John Wiley and Sons. ISBN 0-471-52229-5.
3. ↑ A. Schüßler (December 2001). "A new fungal phylum, the Glomeromycota: phylogeny and evolution.". Mycol. Res. 105 (12): 1413–1421. doi:10.1017/S0953756201005196. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=95091.
4. ↑ 4.0 4.1 4.2 Sébastien Halary, Shehre-Banoo Malik, Levannia Lildhar, Claudio H. Slamovits, Mohamed Hijri, Nicolas Corradi, Conserved Meiotic Machinery in Glomus spp., a Putatively Ancient Asexual Fungal Lineage, Genome Biology and Evolution, Volume 3, 2011, Pages 950–958, https://doi.org/10.1093/gbe/evr089

* v
* t
* e

Opisthokont: True fungi classification, fungal orders

Domain
Archaea
Bacteria
Eukaryota
(Supergroup
Plant
Hacrobia
Heterokont
Alveolata
Rhizaria
Excavata
Amoebozoa
Opisthokonta

Animal
Fungi)

Dikarya|

| Ascomycota
(sac fungi)|

| Pezizomycotina|

| Leotiomyceta|

| Dothideomyceta|

* Coniocybomycetes
* Lichinomycetes
* Arthoniomycetes
* Collemopsidiomycetes
* Dothideomycetes
* Eurotiomycetes
* Lecanoromycetes

|

Sordariomyceta|

* Xylonomycetes
* Geoglossomycetes
* Leotiomycetes
* Laboulbeniomycetes
* Sordariomycetes

Other|

* Orbiliomycetes
* Pezizomycetes

Saccharomycotina|

* Saccharomycetes

Taphrinomycotina|

* Archaeorhizomycetes
* Neolectomycetes
* Pneumocystidomycetes
* Schizosaccharomycetes
* Taphrinomycetes

Basidiomycota
(with basidia)|

| Pucciniomycotina|

* Tritirachiomycetes
* Mixiomycetes
* Agaricostilbomycetes
* Cystobasidiomycetes
* Microbotryomycetes
* Classiculomycetes
* Cryptomycocolacomycetes
* Atractiellomycetes
* Pucciniomycetes

|

Ustilaginomycotina|

* Monilielliomycetes
* Malasseziomycetes
* Ustilaginomycetes
* Exobasidiomycetes

Agaricomycotina|

| Hymenomycete|

* Dacrymycetales
* Agaricomycetes

|

Other|

* Wallemiomycetes
* Bartheletiomycetes
* Tremellomycetes

Entorrhizomycota|

* Entorrhizomycetes

Zygomycota
(paraphyletic)|

| Glomeromycota|

* Paraglomeromycetes
* Archaeosporomycetes
* Glomeromycetes

|

Mucoromycota|

* Umbelopsidomycetes
* Mucoromycetes

Calcarisporiellomycota|

* Calcarisporiellomycetes

Mortierellomycota|

* Mortierellomycetes

Kickxellomycota|

* Zoopagomycetes
* Dimargaritomycetes
* Kickxellomycetes

Entomophthoromycota|

* Neozygitomycetes
* Entomophthoromycetes

Olpidiomycota|

* Olpidiomycetes

Basidiobolomycota|

* Basidiobolomycetes

Zoosporic fungi
(paraphyletic)|

| Neocallimastigomycota|

* Neocallimastigomycetes

|

Chytridiomycota|

* Hyaloraphidiomycetes
* Monoblepharidomycetes
* Sanchytriomycetes
* Mesochytriomycetes
* Chytridiomycetes

Blastocladiomycota|

* Physodermatomycetes
* Blastocladiomycetes

Fungal phyla are underlined. See also: fungi imperfecti (polyphyletic group).

Wikidata ☰ Q596196 entry

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*[Zygomycota]: former phylum