Glomeromycota
Glomeromycota | |
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Gigaspora margarita in association with Lotus corniculatus | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Glomeromycota |
Subdivision: | Glomeromycotina C.Walker & A.Schuessler (2001)[2] |
Class: | Glomeromycetes Caval.-Sm. (1998)[1] |
Orders | |
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Glomeromycota (often referred to as glomeromycetes, as they include only one class, Glomeromycetes) are one of eight currently recognized
According to multigene phylogenetic analyses, this taxon is located as a member of the phylum Mucoromycota.[7] Currently, the phylum name Glomeromycota is invalid, and the subphylum Glomeromycotina should be used to describe this taxon.[8]
Reproduction
The Glomeromycota have generally
Colonization
New colonization of AM fungi largely depends on the amount of inoculum present in the soil.[13] Although pre-existing hyphae and infected root fragments have been shown to successfully colonize the roots of a host, germinating spores are considered to be the key players in new host establishment. Spores are commonly dispersed by fungal and plant burrowing herbivore partners, but some air dispersal capabilities are also known.[14] Studies have shown that spore germination is specific to particular environmental conditions such as right amount of nutrients, temperature or host availability. It has also been observed that the rate of root system colonization is directly correlated to spore density in the soil.[13] In addition, new data also suggests that AM fungi host plants also secrete chemical factors which attract and enhance the growth of developing spore hyphae towards the root system.[14]
The necessary components for the colonization of Glomeromycota include, the host's fine root system, proper development of intracellular arbuscular structures, and a well-established external fungal
Phylogeny
Initial studies of the Glomeromycota were based on the morphology of soil-borne sporocarps (spore clusters) found in or near colonized plant roots.
With the advent of molecular techniques this classification has undergone major revision. An analysis of small subunit (SSU) rRNA sequences[20] indicated that they share a common ancestor with the Dikarya.[2] Nowadays it is accepted that Glomeromycota consists of 4 orders.[21]
Glomeromycota | |
Several species which produce glomoid spores (i.e. spores similar to
Work in this field is incomplete, and members of Glomus may be better suited to different genera[24] or families.[9]
Molecular biology
The biochemical and genetic characterization of the Glomeromycota has been hindered by their
See also
References
- PMID 9809012. (as "Glomomycetes")
- ^ .
- ^
Hibbett, D.S.; et al. (March 2007). "A higher level phylogenetic classification of the Fungi". Mycol. Res. 111 (5): 509–547. S2CID 4686378.
- ^ Schüßler, Arthur (15 August 2011). "Glomeromycota phylogeny". www.lrz-muenchen.de. Archived from the original on 2012-05-29.
- ^ Schüßler, Arthur (10 March 2011). "The Geosiphon pyriformis symbiosis – fungus 'eats' cyanobacterium". www.lrz-muenchen.de. Archived from the original on 2012-08-05.
- ^
Hempel, S.; Renker, C. & Buscot, F. (2007). "Differences in the species composition of arbuscular mycorrhizal fungi in spore, root and soil communities in a grassland ecosystem". Environmental Microbiology. 9 (8): 1930–1938. PMID 17635540.
- PMID 27738200.
- PMID 27738200.
- ^ a b
Simon, L.; Bousquet, J.; Levesque, C.; Lalonde, M. (1993). "Origin and diversification of endomycorrhizal fungi and coincidence with vascular land plants". S2CID 4319766.
- ^ PMID 21876220.
- PMID 24260466.
- PMID 22075432.
- ^ a b Zangaro, Waldemar, Leila Rostirola, Vergal Souza, Priscila Almeida Alves, Bochi Lescano, Ricardo Rondina, Luiz Nogueira, and Eduardo Carrenho. "Root Colonization and Spore Abundance of Arbuscular Mycorrhizal Fungi in Distinct Successional Stages from an Atlantic Rainforest Biome in Southern Brazil." Mycorrhiza 23.3 (2013): 221–33. Web.
- ^ ISBN 9780123705266.
- ^ Tulasne, L.R. & C. Tulasne (1844). "Fungi nonnulli hipogaei, novi v. minus cogniti auct". Giornale Botanico Italiano. 2: 55–63.
- ^ Wright, S.F. Management of Arbuscular Mycorrhizal Fungi. 2005. In Roots and Soil Management: Interactions between roots and the soil. Ed. Zobel, R.W., Wright, S.F. USA: American Society of Agronomy. Pp 183–197.
- ^
Thaxter, R. (1922). "A revision of the Endogonaceae". Proc. Am. Acad. Arts Sci. 57 (12): 291–341. JSTOR 20025921.
- ^ J.W. Gerdemann; J.M. Trappe (1974). "The Endogonaceae in the Pacific Northwest". Mycologia Memoirs. 5: 1–76.
- ^ J.B. Morton; G.L. Benny (1990). "Revised classification of arbuscular mycorrhizal fungi (Zygomycetes): a new order, Glomales, two new suborders, Glomineae and Gigasporineae, and two new families, Acaulosporaceae and Gigasporaceae, with an emendation of Glomaceae". Mycotaxon. 37: 471–491.
- ^ Schüßler, A.; et al. (January 2001). "Analysis of partial Glomales SSU rRNA gene sequences: implications for primer design and phylogeny". Mycol. Res. 105 (1): 5–15. .
- ^
Redecker, D.; Schüßler, A.; Stockinger, H.; Stürmer, S. L.; Morton, J. B. & Walker, C. (2013). "An evidence-based consensus for the classification of arbuscular mycorrhizal fungi (Glomeromycota)". Mycorrhiza. 23 (7): 515–531. S2CID 16495856.
- S2CID 33894668.
- S2CID 33054919.
- ^ Walker, C. (1992). "Systematics and taxonomy of the arbuscular mycorrhizal fungi (Glomales) – a possible way forward" (PDF). Agronomie. 12 (10): 887–897. .
- PMID 31992756.
- ^
Simon, L.; Lalonde, M.; Bruns, T.D. (1992). "Specific Amplification of 18S Fungal Ribosomal Genes from Vesicular-Arbuscular Endomycorrhizal Fungi Colonizing Roots". American Society for Microbiology. 58 (1): 291–295. S2CID 6480019.
- PMID 16592806.
- PMID 26279186.
External links
- Tree of Life Glomeromycota
- Glomeromycota at the International Culture Collection of VA Mycorrhizal Fungi (INVAM)
- Glomeromycota at the Fungal Biologys|ite
- 'AMF-phylogeny' – 'Glomeromycota database' web-site at the University of Munich
- Glomeromycota at the U.S. National Library of Medicine Medical Subject Headings (MeSH)