? Urediniomycetes
Scientific classification
Kingdom: Fungi Division: Basidiomycota Subdivision: Teliomycotina Class: Urediniomycetes

Urediniomycetes is a diverse class of fungi that includes several important plant pathogens causing forms of fungal rust. It is the only class in the subdivision Teliomycotina of basidiomycetes . Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Divisions Chytridiomycota Deuteromycota Zygomycota Glomeromycota Ascomycota Basidiomycota Fungus growing on a tree in Borneo A fungus (plural fungi) is a eukaryotic organism that digests its food externally and absorbs the nutrient molecules into its cells. ... Classes Subdivision Teliomycotina    Urediniomycetes Subdivision Ustilaginomycotina    Ustilaginomycetes Subdivision Hymenomycotina    Homobasidiomycetes- mushrooms    Heterobasidiomycetes- jelly fungi The Division Basidiomycota is a large taxon within the Kingdom Fungi that includes those species that produce spores in a club-shaped structure called a basidium. ... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Divisions Chytridiomycota Zygomycota Ascomycota Basidiomycota The Fungi (singular: fungus) are a large group of organisms ranked as a kingdom within the Domain Eukaryota. ... Phytopathology or Plant Pathology is the science of diagnosing and managing plant diseases. ... This article is about the fungus. ... Classes Subdivision Teliomycotina    Urediniomycetes Subdivision Ustilaginomycotina    Ustilaginomycetes Subdivision Hymenomycotina    Homobasidiomycetes - mushrooms The Division Basidiomycota is a large taxon within the Kingdom Fungi that includes those species that produce spores in a club_shaped structure called a basidium. ...

Characteristics

Urediniomycetes develop no basidiocarp, karyogamy occurs in a thick-walled resting spore (teliospore), and meiosis occurs upon germination of teliospore. They have simple septal pores without membrane caps and disc-like spindle pole bodies. Except for a few species, the basidia are transversally septate. Mannose is the major cell wall carbohydrate, glucose, fucose and rhamnose are the less prevalent neutral sugars and xylose is not present. Mushroom In fungi, the fruiting body (also known as sporocarp) is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. ... Karyogamy is the fusion of nuclei of two cells, as part of syngamy. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... In biology, meiosis is the process that transforms one diploid cell into four haploid cells in eukaryotes in order to redistribute the diploids cells genome. ... The mitotic spindle is a structure of the eukaryotic cytoskeleton involved in mitosis and meiosis. ... MTOC or microtubule-organizing center is a structure found in all plant and animal cells from which microtubules radiate. ... Basidium is a cell on which the spores of the mushroom are produced. ... Mannose is a sugar, one of the hexose series of carbohydrates. ... A cell wall is a more or less solid layer surrounding a cell. ... Glucose (Glc), a monosaccharide (or simple sugar), is one of the most important carbohydrates. ... Fucose is a hexose sugar with the chemical formula C6H12O5. ... Xylose is an aldopentose — a monosaccharide containing five carbon atoms, and including an aldehyde functional group. ...

Systematics

The class contains approximately 7400 species, distributed among approximately 215 genera, but can be much larger as many cryptic species are recognized. More than 95% of the species and 75% of the genera are placed in the order Uredinales. Due to the rapid accumulation of new data, the classification of Urediniomycetes is still under development. Currently, the class is divided into the orders Agaricostilbales, Atractiellales, Classiculales, Microbotryales, Septobasidiales, Sporidiales and Uredinales. Three subclasses (Urediniomycetidae, Agaricostilbomycetidae and Microbotryomycetidae) have been proposed. An attempt of integrated consensus-classification is presented below: In biology, a species is a kind of organism. ... In biology, a cryptic species complex is a group of species that satisfy the scientific definition of species — that is, they are reproductively isolated from each other — but which are anatomically indistinguishable. ... This article is about the fungus. ... This article is about the fungus. ...

• Subclass: Microbotryomycetidae

Order: Cryptomycocolacales Oberwinkler & Bauer

Family: Cryptomycocolacaceae Oberwinkler & Bauer

Order: Heterogastridiales Oberwinkler & Bauer

Family: Heterogastridiaceae Oberwinkler & Bauer

Order: Leucosporidiales Sampaio, Weiss & Bauer

Order: Sporidiobolales Sampaio, Weiss & Bauer

Family: Sporidiobolaceae Moore emend. Sampaio, Weiss & Bauer

Order: Microbotryales Bauer & Oberwinkler

Family: Microbotryaceae Moore

Family: Ustilentylomataceae Bauer & Oberwinkler

Taxa of the Microbotryomycetidae incertae sedis

Family: Krieglsteineraceae Pouzar

Family: Camptobasidiaceae Moore

Genera: Atractocolax, Bensingtonia, Colacogloea, Kriegeria

• Subclass: Agaricostilbomycetidae

Order: Agaricostilbales Oberwinkler & Bauer

Family: Agaricostilbaceae Oberwinkler & Bauer

Family: Chionosphaeraceae Oberwinkler & Bandon

Taxa of the Agaricostilbomycetidae incertae sedis

Genera: Bensingtonia, Kondoa, Kurtzmanomyces, Mycogloea, Sporobolomyces, Sterigmatomyces, Spiculogloea, Zygogloea

• Subclass: Urediniomycetidae

Order: Uredinales Arthur

14 families

Order: Septobasidiales Couch ex Donk

Family: Septobasidiaceae Maire

Family: Pachnocybaceae Oberwinkler & Bauer

Order: Platygloeales Moore

Taxa of the Urediniomycetidae incertae sedis

Family: Eocronartiaceae Jülich

Genera: Helicobasidium, Herpobasidium, Insolibasidium, Jola, Platycarpa, Ptechetelium

• Other groups of uncertain position:

Order Atractiellales Oberwinkler & Bandoni

Family: Hoehnelomycetaceae Jülich

Family: Phleogenaceae Weese

Family: Helicogloeaceae Jülich

Order: Classiculales Bauer, Begerow, Oberwinkler & Marvanová

Family: Classiculaceae Bauer, Begerow, Oberwinkler & Marvanová

Order: Cystobasidiales (Bauer & Sampaio, in prep.)

Incertae sedis—of uncertain position (seat)—is a term used to define a taxonomic group where its broader relationships are unknown or undefined. ... Incertae sedis—of uncertain position (seat)—is a term used to define a taxonomic group where its broader relationships are unknown or undefined. ... This article is about the fungus. ... Incertae sedis—of uncertain position (seat)—is a term used to define a taxonomic group where its broader relationships are unknown or undefined. ...

References

• The Tree of Life page on Urediniomycotina[1]
• The Classification of Dimorphic Basidiomycetes[2]