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'''''Phoma''''' is a [[genus]] of the asexual stages of [[fungi]]. It contains many [[plant pathogen]]ic species.
'''''Phoma''''' is a [[genus]] of common coelomycetous soil [[fungi]]. It contains many [[plant pathogen]]ic 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]]''. <ref Name="Harshberger">{{cite book
[[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]]''. <ref Name="Harshberger">{{cite book

Revision as of 22:03, 28 November 2008

Phoma
Scientific classification
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Binomial name
Phoma
(Saccardo, 1880)[1]

Phoma is a genus of common coelomycetous soil 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. [2]

Species of Phoma

External links

Index Fungorum
USDA ARS Fungal Database

References

  1. ^ "Integrated Taxonomic Information System" (web). www.itis.gov. Retrieved 2008-01-12.
  2. ^ Harshberger, John William (1917). A Text-book of Mycology and Plant Pathology. Original from the University of Michigan: P. Blakiston's son & co. pp. page 261-262. January 12, 2008. {{cite book}}: |pages= has extra text (help)
  • 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.