''Rasamsonia'' is a genus of fungi in the family Trichocomaceae,

circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ...

in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combination of features: species are thermotolerant or thermophilic; their conidiophores have distinctly rough-walled stipes;

conidia A conidium ( ; ), sometimes termed an asexual chlamydospore or chlamydoconidium (), is an asexual, non-motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also called mitospores due to the ...

are olive brown; and ascomata, if present, have minimal covering. ''Rasamsonia'' phenotypically resembles '' Paecilomyces'', in that both have thermotolerant species, produce olive-brown conidia, and form ascomata with no or scarce ascomatal covering; ''Rasamsonia'', however, differs from ''Paecilomyces'' in having more regularly branched conidiophores with distinct rough-walled structures. The type species is ''

Rasamsonia emersonii ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'', a fungus formerly classified in the genus '' Talaromyces''.

Clinical relevance

Due to an increase in reports of human and animal mycosis by ''

Rasamsonia argillacea ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'' (formerly '' Geosmithia argillacea''), it has been considered an emerging pathogen. In 2013,

molecular A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion. In quantum physics, organic chemistry, and bioche ...

analysis was used to identify four species in the ''R. argillacea'' species complex, including ''R. eburnea'', and the newly described ''R. piperina'' and ''R. aegroticola''. These fungi, which can be identified with internal transcribed spacer sequences, have similar

antifungal An antifungal medication, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis (thrush), serious systemic infections such as crypto ...

susceptibility profiles.

Species

*''

Rasamsonia aegroticola ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combination of features: species ...

'' Houbraken, S.Giraud & Samson (2012) *''

'' (Stolk, H.C.Evans & T. Nilsson) Houbraken & Frisvad (2011) *''

Rasamsonia brevistipitata ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combination of features: species ...

'' Houbraken & Frisvad (2011) *''

Rasamsonia byssochlamydoides ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combination of features: species ...

'' (Stolk & Samson) Houbraken & Frisvad (2011) *''

Rasamsonia columbiensis ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combination of features: species ...

'' Jurjević, Hubka & S.W.Peterson (2016) *''

Rasamsonia composticola ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combination of features: species ...

'' Y.Y.Su & L.Cai (2012) *''

Rasamsonia cylindrospora ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'' (G.Sm.) Houbraken & Frisvad (2011) *''

Rasamsonia eburnea ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'' (Yaguchi, Someya & Udagawa) Houbraken & Frisvad (2011) *''

'' (Stolk) Houbraken & Frisvad (2011) *''

Rasamsonia piperina ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'' Houbraken, S.Giraud & Samson (2012) *''

Rasamsonia pulvericola ''Rasamsonia'' is a genus of fungi in the family Trichocomaceae, circumscription (taxonomy), circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combin ...

'' J.B.Tanney & K.A.Seifert (2013)

References

{{Taxonbar, from=Q21213873 Eurotiomycetes genera Trichocomaceae Taxa described in 2011