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  Rhinocladiella Mold Species

Rhinocladiella species is a causative agent of Chromoblastomycosis.

(Information from www.doctorfungus.org @ 2005)

 

 

Taxonomic Classifications

Kingdom: Fungi
Phylum: Fungi Imperfecti
Genus: Rhinocladiella

 

Rhinocladiella Mold Pictures

 

Rhinocladiella microscopic photograph

A microscopic morphology of Rhinocladiella species viewed under 40X objective.

Take note of the single rank of conidia seen at the apex of the conidiophore of the Rhinocladiella species. Unlike Fonsecaea, Rhinocladiella does not have secondary ranks of conidia arising out of the primary formed conidia. (Information from A Clinical Laboratory Handbook: Identifying Filamentous Fungi)

 

Rhinocladiella mold picture

A microscopic morphology of Rhinocladiella species.

 

Take note of the single rank of conidia seen at the apex of the conidiophore of the Rhinocladiella species.

(Information from A Clinical Laboratory Handbook: Identifying Filamentous Fungi)

 

 

The microscopic photographs of Rhinocladiella species above were taken by our Mold Microbiologist, Ma. Adee Light E. Hilado for mold species documentation.
 

 

Ecology
Rhinocladiella is a cosmopolitan fungus which can be found in soil, herbaceous substrates, and decaying wood. 

Species 
This genus lacks a known sexual state and is generally classified as a dark walled dematiaceous fungus.  There are two existing species under the Rhinocladiella genus namely, Rhinocladiella aquaspersa and Rhinocladiella atrovirens while the remaining five species have been obsolete and have been only considered by experts as synonyms for a few species under Fonsecaea and Exophiala genera. 

Pathogenicity and Health Effects
To date, there are only three cases of subcutaneous infection that have been reported as caused by Rhinocladiella aquaspersa.

 

Macroscopic Appearance

     Growth rate is slow to moderately rapid;

      Colony texture is velvety;

      Both surface and reverse colony color is olive black.

 

Microscopic Appearance

      Hyphae are septate and brown in color;

      Conidia are pale brown in color, ellipsoidal to club shaped, unicellular mostly or maybe bicellular at times, borne on denticles, and are arranged in a closely spaced series at and beneath the tip of the conidiophore; and

      Conidiophores are brown in color, simple, and cylindrical in shape.

 

Remarks

Rhinocladiella, unlike Fonsecaea, does not have secondary ranks of conidia arising out of the initially formed conidia.  Only a single rank of conidia is observed at the tip of the conidiophore.  It should be also noted, however, that Rhinocladiella forms are also occasionally observed in polymorphous fungi such as Exophiala and Fonsecaea.
 

The mycological information gathered and
organized in this extensive research on
different Pathogenic Molds was sourced out
from the list of informative websites and
reference below:
http://www.osha.gov
http://www.doctorfungus.org
http://www.mycology.adelaide.edu.au
http://www.mycology.adelaide.edu.au

http://www.dehs.umn.edu
http://www.mold-help.org
http://www.mycology.net
http://www.clinical-mycology.com
http://www.botany.utoronto.ca
http://www.med.sc.edu
http://www.tigr.org
http://www.pangloss.ucsfmedicalcenter.org
http://www.dermnz.org
http://ncbi.nlm.nih.gov
http://www.wadsworth.org
http://botit.botany.wisc.edu

A Clinical Laboratory Handbook:
Identifying Filamentous Fungi by
St. Germain, Guy and R. Summerbell.

 

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