''Oxyporus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

polypore Polypores are a group of fungi that form large fruiting bodies with pores or tubes on the underside (see Delimitation for exceptions). They are a morphological group of basidiomycetes-like gilled mushrooms and hydnoid fungi, and not all polypor ...

fungi in the family

Schizoporaceae Schizoporaceae are a family of fungi in the order Hymenochaetales. These are saprobic, and cause white rots of standing and fallen wood of coniferous and broadleaved trees. According to one 2008 estimate, the family contains 14 genera and 109 spe ...

. An individual family Oxyporaceae was described for the genus. A number of species in this genus are

plant pathogen Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomyc ...

s, causing a

white rot A wood-decay or xylophagous fungus is any species of fungus that digests moist wood, causing it to rot. Some species of wood-decay fungi attack dead wood, such as brown rot, and some, such as ''Armillaria'' (honey fungus), are parasitic and col ...

. The genus is widely distributed.

Taxonomy

''Oxyporus'' was first classified as a

section Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially of a chapter, in books and documents ** Section sign ...

of the genus '' Coriolus'' by

Hubert Bourdot Hubert Bourdot (30 October 1861 – 30 September 1937) was a French Roman Catholic priest and mycologist who was a native of Imphy, a community in the department of Nièvre. From 1898 until his death, Bourdot was a parish priest in Saint-Priest-en ...

Amédée Galzin Amédée Galzin (1 May 1853, Parrinet, Aveyron – 14 February 1925, Parrinet) was a French veterinarian and mycologist. In 1878 he obtained his degree from the veterinary college in Toulouse. From 1879 to 1905, he served as a military veter ...

in 1925.

Marinus Anton Donk Marinus Anton Donk (14 August 1908 – 2 September 1972) was a Dutch mycologist. He specialized in the taxonomy and nomenclature of mushrooms. Rolf Singer wrote in his obituary that he was "one of the most outstanding figures of contemporary myc ...

promoted the section to generic status in 1933. ''Boudiera'', a genus proposed by

Lázaro Ibiza Lázaro is a Spanish or Portuguese-based given name or surname. Notable people with the name include: Given name *Lázaro (footballer, born 1990), full name Lázaro Vinícius Alves Martins, Brazilian footballer * Lázaro (footballer, born 2002), fu ...

in 1917, is a

synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

. The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

is ''Oxyporus populinus''.

Description

The

fruit bodies The sporocarp (also known as fruiting body, fruit body or fruitbody) of fungi is a multicellular structure on which spore-producing structures, such as basidia or asci, are borne. The fruitbody is part of the sexual phase of a fungal life cyc ...

of ''Oxyporus'' species can exist in either a pileate (with

cap A cap is a flat headgear, usually with a visor. Caps have crowns that fit very close to the head. They made their first appearance as early as 3200 BC. Caps typically have a visor, or no brim at all. They are popular in casual and informal se ...

and stipe) form, or a

resupinate Resupination is derived from the Latin word ''resupinus'', meaning "bent back with the face upward" or "on the back". "Resupination" is the noun form of the adjective "resupine" which means "being upside-down, supine or facing upward". The word " ...

form (like a crust on the surface of the substrate). In the latter case, the crust is typically broadly attached to the substrate and has a fibrous to woody texture. Pileate fruit bodies are white to deep cream in color, have a velvety texture, and are frequently covered with

moss Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hor ...

es. The pore surface is white to light yellowish, with pores that are small and isodiametric, rarely large and angular. The tube layer is single or divided into distant layers, in which case it has layers of tissue between the tube layers. The

flesh Flesh is any aggregation of soft tissues of an organism. Various multicellular organisms have soft tissues that may be called "flesh". In mammals, including humans, ''flesh'' encompasses muscle Skeletal muscles (commonly referred to as mu ...

is white to cream. The

hypha A hypha (; ) is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium. Structure A hypha consists of one or ...

l system is monomitic; the generative hyphae are thin to thick-walled and sparingly branched. Most species have and abundance of simple

septate In biology, a septum (Latin for ''something that encloses''; plural septa) is a wall, dividing a cavity or structure into smaller ones. A cavity or structure divided in this way may be referred to as septate. Examples Human anatomy * Interatri ...

cystidia that are encrusted at the tip.

Basidiospore A basidiospore is a reproductive spore produced by Basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts, and smuts. Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are pro ...

s are spherical to broadly

ellipsoid An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the ...

, thin- to thick-walled, smooth,

hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ...

, and have a negative reaction to

Melzer's reagent Melzer's reagent (also known as Melzer's iodine reagent, Melzer's solution or informally as Melzer's) is a chemical reagent used by mycologists to assist with the identification of fungi, and by phytopathologists for fungi that are plant pathogens ...

. Species of ''Oxyporus'' grow on both

conifer Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single ...

s and

hardwood Hardwood is wood from dicot trees. These are usually found in broad-leaved temperate and tropical forests. In temperate and boreal latitudes they are mostly deciduous, but in tropics and subtropics mostly evergreen. Hardwood (which comes from ...

s, causing a white rot.

Pathogenicity

''Oxyporus corticola'' has been isolated from the lymphocutaneous tissues of a

beagle The beagle is a breed of small scent hound, similar in appearance to the much larger foxhound. The beagle was developed primarily for hunting hare, known as beagling. Possessing a great sense of smell and superior tracking instincts, the ...

and a

German Shepherd The German Shepherd or Alsatian is a German breed of working dog of medium to large size. The breed was developed by Max von Stephanitz using various traditional German herding dogs from 1899. It was originally bred as a herding dog, for he ...

. The

risk factor In epidemiology, a risk factor or determinant is a variable associated with an increased risk of disease or infection. Due to a lack of harmonization across disciplines, determinant, in its more widely accepted scientific meaning, is often use ...

s for infection with ''O. corticola'' are not yet known.

Uses

'' Oxyporus latemarginatus'' produces the industrially significant enzymes

lignin peroxidase In enzymology, a lignin peroxidase () is an enzyme that catalyzes the chemical reaction :1,2-bis(3,4-dimethoxyphenyl)propane-1,3-diol + H2O2 \rightleftharpoons 3,4-dimethoxybenzaldehyde + 1-(3,4-dimethoxyphenyl)ethane-1,2-diol + H2O Thus, the ...

and

manganese peroxidase Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy use ...

(but not

laccase Laccases () are multicopper oxidases found in plants, fungi, and bacteria. Laccases oxidize a variety of phenolic substrates, performing one-electron oxidations, leading to crosslinking. For example, laccases play a role in the formation of lign ...

), which are used in

bioremediation Bioremediation broadly refers to any process wherein a biological system (typically bacteria, microalgae, fungi, and plants), living or dead, is employed for removing environmental pollutants from air, water, soil, flue gasses, industrial effluent ...

, biopulping, and biobleaching. The fungus was investigated for its ability to degrade

lignin Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity ...

kenaf Kenaf tymology: Persian ''Hibiscus cannabinus'', is a plant in the family Malvaceae also called Deccan hemp and Java jute. ''Hibiscus cannabinus'' is in the genus ''Hibiscus'' and is native to Africa, though its exact origin is unknown. The name ...

(''Hibiscus cannabinus'') chips. This species also produces an antifungal compound, 5-pentyl-2-furaldehyde, that inhibits the mycelial growth of ''

Alternaria alternata ''Alternaria alternata'' is a fungus which has been recorded causing leaf spot and other diseases on over 380 host species of plant. It is an opportunistic pathogen on numerous hosts causing leaf spots, rots and blights on many plant parts. It ...

'', ''

Botrytis cinerea ''Botrytis cinerea'' is a necrotrophic fungus that affects many plant species, although its most notable hosts may be wine grapes. In viticulture, it is commonly known as "botrytis bunch rot"; in horticulture, it is usually called "grey mould" or ...

'', ''

Colletotrichum gloeosporioides ''Glomerella cingulata'' is a fungal plant pathogen, being the name of the sexual stage (teleomorph) while the more commonly referred to asexual stage (anamorph) is called ''Colletotrichum gloeosporioides''. For most of this article the pathogen ...

'', ''

Fusarium oxysporum ''Fusarium oxysporum'' (Schlecht as emended by Snyder and Hansen), an ascomycete fungus, comprises all the species, varieties and forms recognized by Wollenweber and Reinking within an infrageneric grouping called section Elegans. It is part of ...

'' f. sp. ''lycopersici'', and ''

Rhizoctonia solani ''Rhizoctonia solani'' is a species of fungus in the order Cantharellales. Basidiocarps (fruit bodies) are thin, effused, and web-like, but the fungus is more typically encountered in its anamorphic state, as hyphae and sclerotia. The name ''Rhi ...

'' by mycofumigation. It has been investigated for use as a biofumigant.

Species

*'' Oxyporus andinus'' *'' Oxyporus borealis'' *'' Oxyporus brunneus'' *'' Oxyporus bucholtzii'' *'' Oxyporus cervinogilvus'' *'' Oxyporus cinnamomeus'' *'' Oxyporus connatus'' *'' Oxyporus corticola'' *'' Oxyporus cuneatus'' *'' Oxyporus fragilis'' *'' Oxyporus ginkgonis'' *'' Oxyporus lacerus'' *'' Oxyporus latemarginatus'' *'' Oxyporus lilaceus'' *'' Oxyporus macroporus'' *'' Oxyporus mollis'' *'' Oxyporus neotropicus'' *'' Oxyporus obducens'' *'' Oxyporus pellicula'' *'' Oxyporus phellodendri'' *'' Oxyporus piceicola'' *''

Oxyporus populinus ''Oxyporus populinus'', also known as the mossy maple polypore and poplar bracket, is a species of fungus in the family Schizoporaceae. It is a plant pathogen that affects trees. It is not edible. See also * List of apricot diseases * List of pe ...

'' *'' Oxyporus ravidus'' *'' Oxyporus rufipusillus'' *'' Oxyporus schizoporoides'' *'' Oxyporus similis'' *'' Oxyporus sinensis'' *'' Oxyporus spiculifer'' *'' Oxyporus subflavus'' *'' Oxyporus subpopulinus'' *'' Oxyporus subulatus''

References

{{Taxonbar, from=Q4332893 Hymenochaetales