Phoma

Taxobox
name = "Phoma"
regnum = Fungi
phylum = Ascomycota
classis = Dothideomycetes
subclassis = Pleosporomycetidae
ordo = Pleosporales
familia = Incertae sedis
genus = "Phoma"
binomial = "Phoma "
binomial_authority = (Saccardo, 1880)cite web
title =Integrated Taxonomic Information System
work =
publisher =www.itis.gov
date =
url = http://www.itis.gov/servlet/SingleRpt/SingleRpt
format =web
doi =
accessdate = 2008-01-12 ]

"Phoma" is a genus of the asexual stages of fungi. It contains many plant pathogenic species.

Spores are colorless and unicellular. The pycnidia are black and depressed in the tissues of the host. "Phoma" is arbitrarily limited to those species in which the spores are less than 15ų as the larger spored forms have been placed in the genus "Macrophoma". The most important species include "Phoma beta" which is the cause of the heart rot and blight of beets, "Phoma batata" that produces a dry rot of sweet potato, and "Phoma solani". cite book
last =Harshberger
first =John William
title =A Text-book of Mycology and Plant Pathology
publisher =P. Blakiston's son & co
date =1917
location =Original from the University of Michigan
pages = page 261-262
url =http://books.google.com/books?id=N9ZLAAAAMAAJ&pg=RA1-PA421&dq=Phoma&as_brr=1&ie=ISO-8859-1#PRA1-PA262,M1
doi =
id = January 12, 2008 ]

Species of "Phoma"

* "Phoma exigua"
* "Phoma glomerata"

External links

[http://www.speciesfungorum.org/Names/Names.asp Index Fungorum]
[http://nt.ars-grin.gov/fungaldatabases USDA ARS Fungal Database]

References

* Boerema, G. H.; de Gruyter, J.; Noordeloos, M. E.; Hamers, M. E. C. 2004. "Phoma" Identification Manual: Differentiation of Specific and Infra-specific Taxa in Culture. CABI.