Editing Sporangium (section)

==Fungi==
[[File:Mature sporangium of a Mucor sp. fungus.jpg|alt=refer to caption|thumb|200px|[[Photomicrograph]] of a mature sporangium of an ''[[Absidia]]'' mold]]

In some phyla of fungi, the sporangium plays a role in [[asexual reproduction]], and may play an indirect role in [[sexual reproduction]]. The sporangium forms on the sporangiophore and contains [[Ploidy|haploid]] [[Cell nucleus|nuclei]] and [[cytoplasm]].<ref>{{cite web |title=Fungi |url=http://leavingbio.net/fungi/ |website=Leaving Certificate Biology |date=4 October 2018}}</ref> [[Spores]] are formed in the sporangiophore by encasing each haploid nucleus and cytoplasm in a tough outer [[membrane]]. During asexual reproduction, these spores are dispersed via wind and [[germination|germinate]] into haploid [[hypha]]e.<ref>{{cite web |title=Life History and Ecology of the Fungi |url=http://www.ucmp.berkeley.edu/fungi/fungilh.html |website=University of California Museum of Paleontology}}</ref> 

Although sexual reproduction in fungi varies between phyla, for some fungi the sporangium plays an indirect role in sexual reproduction. For [[Zygomycota]], sexual reproduction occurs when the haploid hyphae from two individuals join to form a [[zygosporangium]] in response to unfavorable conditions. The haploid nuclei within the zygosporangium then fuse into [[Ploidy|diploid]] nuclei.<ref>{{Cite book |last=Webster |first=John |url=https://www.worldcat.org/title/ocm74942051 |title=Introduction to Fungi |last2=Weber |first2=Roland |date=2007 |publisher=Cambridge University Press |isbn=978-0-521-80739-5 |edition=3 |location=Cambridge, UK ; New York |oclc=ocm74942051}}</ref> When conditions improve, the zygosporangium germinates, undergoes meiosis and produces a sporangium, which releases spores.