Aspergillus flavus   Link,  1809 (Marine Fungus)
Organism information awaits expert curation
Taxonomy
Kingdom:Fungi
Phylum:Ascomycota
Class: Eurotiomycetes
Order:Eurotiales
Family:Trichocomaceae

Image copyrights: The University of Adelaide

Conidial head

Description
Colony characteristics. Colonies (CzA) yellowish-green, consisting of a dense felt of conidiophores.
Colonies on Czapek agar at 25°C attaining a diameter of 3-5 cm within 7 days, usually consisting of a dense felt of yellow-green conidio-phores. Conidial heads typically radiate, later splitting into several loose columns, yellow-green becoming dark yellow-green. Conidiophores hya-line, coarsely roughened, up to 1.0 mm (some isolates up to 2.5 mm) in length. Vesicles globose to subglobose, 25-45 µm in diam. Phialides borne directly on the vesicle or on the metulae, 6-10 x 4.0-5.5 µm. Metulae 6.5-10 x 3-5 µm. Conidia globose to subglobose, 3.6 µm in diam, pale green, echinulate. Sclerotia often produced in fresh isolates, variable in shape and dimension, often brown to black.

Microscopy. Conidiophore stipes rough walled, hyaline. Conidial heads radiate, uni- and biseriate. Vesicles spherical, 25-45 micrometre diam. Conidia echinulate, (sub)spherical, 3.5 micrometre diam. Sclerotia may be present.

Remarks: The species is easily distinguished from Aspergillus fumigatus by the following characters; yellow-green colonies; mature vesicles bearing phialides over their entire surface.


Synonym (s)

Common Name (s)
Economic Importance and Threats
Importance:  Dangers
(The species is one of the main agents of human allergic bronchial aspergillosis. The species also occurs in external ears and may be involved in otitis. Systemic infections occur in leukemic patients. It is also one of the common agents of mycotic sinusitis. Cutaneous aspergillosis is rare. Also cases of aspergillosis in other vertebrates have been reported.)

Ecology
Habitat:  Estuarine, Sandy, Muddy, Coastal

Biogeography


• West Bengal, Kagh Island INDIA (Record: 12/1960-01/1961)
• (Lat: 14.5) (Long: 80.3) INDIA (Record: 09/1987) (Depth: -32 mts)
• (Lat: 18.01) (Long: 83.9) INDIA (Record: 09/1987) (Depth: -40 mts)
• Tamil Nadu, Vellar Estuary (Lat: 11.48) (Long: 79.76) INDIA
• Karnataka, Nethravathi Mangrove (Lat: 12.83) (Long: 74.51) INDIA
• Tamil Nadu, Pichavaram Mangrove Forest (Lat: 11.45) (Long: 79.78) INDIA
• Orissa, Ganjam Coast INDIA
• Karnataka, Nethravathi Estuary (Lat: 12.83) (Long: 74.83) INDIA (Record: 09/2004-11/2004)
• Tamil Nadu, Muthukuda INDIA

Literature Source(s)
  • Gupta, R and Prabhakaran, N (1990) Fungi isolated from the EEZ of Indian coast Proceeding of first Workshop on Scientific Results of FORV Sagar Sampada, 5-7 June 1989 National Institute of Oceanography, India 37-46 Available at - http://drs.nio.org/drs/bitstream/2264/2448/2/Proc_FORV_Sagar_Sampada_1990_37.pdf
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • The Aspergillus website The Fungal Research Trust Available at - http://www.aspergillus.org.uk
  • Mycology Online University of Adelaide, Australia Available at - http://www.mycology.adelaide.edu.au/
  • Rai, JN; Tewari, JP and Mukerji, KG (1966) Mycoflora of mangrove mud Mycopathologia Springer 38(1-2) 17-31 Available at - http://dx.doi.org/10.1007/BF02051672
  • Kathiresan, K (2003) Polythene and plastics-degrading microbes from the mangrove soil Revista de Biologia Tropical Universidad de Costa Rica 51(3, 4) 629-634 Available at - http://www.ots.ac.cr/tropiweb/attachments/volumes/vol51-3-4/03-Kathiresan-Polythene.pdf
  • Anita, DD and Sridhar, KR (2009) Assemblage and diversity of fungi associated with mangrove wild legume Canavalia cathartica Tropical and Subtropical Agroecosystems Universidad Autonoma de Yucatan 10 225-235 Available at - http://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve=93912989010
  • Muthezhilan, R; Ashok, and Jayalakshmi, S (2007) Production and optimization of thermostable alkaline xylanase by Penicillium oxalicum in solid state fermentation African Journal of Microbiology Research Academic Journals 1(2) 20-28 Available at - http://www.academicjournals.org/ajmr/abstracts/abstracts/abstrats2007/July/Muthezhilan%20et%20al.htm
  • Panda, T (2010) Some sugar fungi in coastal sand dunes of Orissa, India Journal of Yeast and Fungal Research Academic Journals 1(5) 73-80 Available at - http://www.academicjournals.org/JYFR/PDF/Pdf2010/July/Panda.pdf
  • Karamchand, KS; Sridhar, KR and Bhat, R (2009) Diversity of fungi associated with estuarine sedge Cyperus malaccensis Lam. Journal of Agricultural Technology 5(1) 111-127 Available at - www.ijat-rmutto.com/pdf/June_v5_n1_09/11-54-IJAT2009_34F.pdf
  • Sasi, A; Kani, SM; Jagadeesh, G; Singh, CR and Kumar, RM (2009) Isolation and enumeration of mycosybionts from leucosolenia; along the east coast of Tamil nadu, India Asian Jr. of Microbiol. Biotech. Env. Sc. Global Science Publications 11(4) 907-912 Available at - http://nicmas.nio.org/eprints11/Asian_J_Microbiol_Biotechnol_Environ_Sci_11_907.pdf

Page last updated on:2011-03-29

Back to Search