Ecology

Associations

Animal / dung saprobe
sporangiophore of Rhizopus stolonifer var. stolonifer is saprobic in/on dung or excretions of dung of Herbivores
Other: minor host/prey

In Great Britain and/or Ireland:
Foodplant / pathogen
Rhizopus stolonifer var. stolonifer infects and damages stored fruit of Malus domestica

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Foodplant / pathogen
Rhizopus stolonifer infects and damages fruit of Malus domestica

Foodplant / pathogen
Rhizopus stolonifer infects and damages fruit of Pyrus communis sens. str.

Foodplant / pathogen
Rhizopus stolonifer infects and damages fruit of Magnoliopsida

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Wikipedia

Black bread mold

Black bread mold!<-- This template has to be "warmed up" before it can be used, for some reason -->

Rhizopus stolonifer (black bread mold) is a widely distributed thread-like Mucoralean mold. Commonly found on bread surfaces, it takes food and nutrients from the bread and causes damage to the surface where it lives.

Asexual spores are formed within sporangia, which break to release the spores mature. Germination of these spores forms the haploid hyphae of a new mycelium. R. stolonifer grows rapidly at temperatures between 15 and 30°C.[2]

Rhizopus stolonifer is a heterothallic species (Schipper 1984), in that sexual reproduction happens only when opposite mating types (designated + and -) come in contact. Successful mating results in the formation of durable zygospores at the point of contact. Subsequently, the zygospore germinates and forms a sporangiophore whose sporangium contains both + and - haploid spores. There are three varieties: R. stolonifer var. stolonifer produces straight, erect sporangiophores, whereas those of R. stolonifer var. lyococcos are curved.[2] A closely related species, Rhizopus sexualis, differs primarily in being homothallic (self-compatible).

Contents

Distribution and habitat

Rhizopus stolonifer has a cosmopolitan distribution. It is capable of causing opportunistic infections of humans (zygomycosis). It is most commonly found growing on bread and soft fruits such as bananas and grapes. Because its spores are common in the air, it can be grown within a few days by keeping moistened pieces of bread in an enclosed, humid environment.

See also

References

  1. ^ Tree of Life Web Project7
  2. ^ a b Schipper, M. A. A. 1984. A revision of the genus Rhizopus. I. The Rh. stolonifer-group and Rh. oryzae. CBS Studies in Mycology 25:1-19.
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Source: Wikipedia

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