211:, or by production of spores either asexually or sexually. The asexual cycle includes the formation of spore containing sporangia borne on the top of sporangiophores that may extend 10 to 15 cm above the surface of the fungal colony from which they emerged. The long filamentous sporangiophores respond to divergent environmental signals including light, gravity, wind, chemicals and adjacent objects. The sporangia contain vegetative spores with one to six haploid nuclei. These spores when dispersed can establish new colonies.
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231:. Gametangia are haploid multinuclear cells equivalent to gametes. The two gametangia fuse to form an immature zygospore. Initially the developing zygospore contains thousands of nuclei contributed by the gametangia. During the course of zygospore maturation and dormancy, lasting several months, most nuclei are degraded. It is thought that ordinarily two surviving nuclei, one from each parent, fuse to form a diploid cell which then undergoes
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to form haploid meiotic products. These then reproduce by mitotic divisions leading to the formation of a sporangium structure (germosporangium) that develops out from the zygospore. The germosporangium contains spores (germspores) that have one to six
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have two mating types that are indistinguishable morphologically. The sexual cycle is thought to occur by the following steps. Two hyphae of different mating type encounter each other, and their tips undergo a
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Eslava AP, Alvarez MI, Burke PV, Delbrück M (July 1975).
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366:"Genetic recombination in sexual crosses of phycomyces"
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305:Eslava AP, Alvarez MI, Delbrück M (October 1975).
240:nuclei like those in the vegetative sporangium.
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255:sporangium with fingers for size comparison
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178:phylum. They are known for their strong
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286:from a fish food pellet in potting soil
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621:7a86708c-15f0-4ff3-961e-eca5be41a649
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207:can reproduce via extension of
270:exhibiting strong phototropism
190:. The best studied species is
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670:. You can help Knowledge by
311:Proc. Natl. Acad. Sci. U.S.A
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382:10.1093/genetics/80.3.445
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50:Scientific classification
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193:Phycomyces blakesleeanus
148:Phycomyces blakesleeanus
332:10.1073/pnas.72.10.4076
307:"Meiosis in Phycomyces"
666:-related article is a
200:Asexual reproduction
417:Phycomyces web site
323:1975PNAS...72.4076E
215:Sexual reproduction
717:Zygomycota genera
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629:Open Tree of Life
429:Taxon identifiers
227:event to produce
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155:Phycomyces nitens
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722:Zygomycota stubs
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40:Closeup of the
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170:is a genus of
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672:expanding it
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180:phototropism
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87:Mucoromycota
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554:iNaturalist
461:Wikispecies
44:sporangium
711:Categories
664:Zygomycota
467:Phycomyces
437:Phycomyces
292:References
284:Phycomyces
268:Phycomyces
253:Phycomyces
229:gametangia
220:Phycomyces
205:Phycomyces
188:sporangium
176:Zygomycota
167:Phycomyces
128:Phycomyces
83:Division:
42:Phycomyces
25:Phycomyces
225:septation
107:Mucorales
73:Kingdom:
67:Eukaryota
580:MycoBank
528:Fungorum
452:Q4388284
446:Wikidata
400:17248685
370:Genetics
139:Species
113:Family:
63:Domain:
572:1294849
546:2558253
391:1213351
351:1060090
319:Bibcode
238:haploid
233:meiosis
209:mycelia
186:of the
174:in the
123:Genus:
103:Order:
93:Class:
634:735974
618:NZOR:
559:319606
520:1PHYKG
481:566610
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342:433141
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172:fungus
662:This
585:20411
567:IRMNG
533:20411
507:38542
133:Kunze
77:Fungi
668:stub
611:4836
606:NCBI
541:GBIF
515:EPPO
494:6PFX
476:BOLD
396:PMID
347:PMID
593:NBN
502:EoL
489:CoL
386:PMC
378:doi
337:PMC
327:doi
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