From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Structure of Rhizopus spp.-english.JPG
Schematic diagram of Rhizopus spp.
Scientific classification
Kingdom: Fungi
Division: Zygomycota
Class: Mucoromycotina
Order: Mucorales
Family: Mucoraceae
Genus: Rhizopus
Ehrenb. (1820)
Type species
Rhizopus nigricans
Ehrenb. (1820)

Crinofera Nieuwl. (1916)
Pilophora Wallr. (1833)

Rhizopus is a genus of common saprophytic fungi on plants and specialized parasites on animals. They are found on a wide variety of organic substrates, including "mature fruits and vegetables",[2] jellies, syrups, leather, bread, peanuts, and tobacco. They are multicellular. Some Rhizopus species are opportunistic agents of human zygomycosis (fungal infection) and can be fatal. Rhizopus infections may also be a complication of diabetic ketoacidosis.[3] This widespread genus includes at least eight species.[4][5]

Rhizopus 400x magnification

Rhizopus species grow as filamentous, branching hyphae that generally lack cross-walls (i.e., they are coenocytic). They reproduce by forming asexual and sexual spores. In asexual reproduction, sporangiospores are produced inside a spherical structure, the sporangium. Sporangia are supported by a large apophysate columella atop a long stalk, the sporangiophore. Sporangiophores arise among distinctive, root-like rhizoids. In sexual reproduction, a dark zygospore is produced at the point where two compatible mycelia fuse. Upon germination, a zygospore produces colonies that are genetically different from either parent.

Various species, including R. stolonifer, may cause soft rot in sweet potatoes and Narcissus.


See also[edit]


  1. ^ "Rhizopus Ehrenb. 1820". MycoBank. International Mycological Association. Retrieved 2011-02-05. 
  2. ^ Kirk PM, Cannon PF, Minter DW, Stalpers JA (2008). Dictionary of the Fungi (10th ed.). Wallingford, UK: CABI. p. 599. ISBN 978-0-85199-826-8. 
  3. ^ Chinn RY, Diamond RD (1982). "Generation of chemotactic factors by Rhizopus oryzae in the presence and absence of serum: relationship to hyphal damage mediated by human neutrophils and effects of hyperglycemia and ketoacidosis". Infection and Immunity. 38 (3): 1123–29. 
  4. ^ Zheng RY, Chen GQ, Huang H, Liu XY (2007). "A monograph of Rhizopus". Sydowia. 59 (2): 273–372. 
  5. ^ Abe A, Asano K, Sone T (2010). "A Molecular Phylogeny-Based Taxonomy of the Genus Rhizopus". Bioscience, Biotechnology, and Biochemistry. 74 (7): 1325–1331. 

External links[edit]


None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license