Search results
Results from the WOW.Com Content Network
A zygospore is a diploid reproductive stage in the life cycle of many fungi and protists.Zygospores are created by the nuclear fusion of haploid cells. In fungi, zygospores are formed in zygosporangia after the fusion of specialized budding structures, from mycelia of the same (in homothallic fungi) or different mating types (in heterothallic fungi), and may be chlamydospores. [1]
Mating in fungi. Fungi are a diverse group of organisms that employ a huge variety of reproductive strategies, ranging from fully asexual to almost exclusively sexual species. [1] Most species can reproduce both sexually and asexually, alternating between haploid and diploid forms. This contrasts with most multicellular eukaryotes such as ...
Basidiomycota (/ bəˌsɪdi.oʊmaɪˈkoʊtə /) [2] is one of two large divisions that, together with the Ascomycota, constitute the subkingdom Dikarya (often referred to as the " higher fungi ") within the kingdom Fungi. Members are known as basidiomycetes. [3] More specifically, Basidiomycota includes these groups: agarics, puffballs ...
In mycology, the terms teleomorph, anamorph, and holomorph apply to portions of the life cycles of fungi in the phyla Ascomycota and Basidiomycota: Teleomorph: the sexual reproductive stage (morph), typically a fruiting body. Anamorph: an asexual reproductive stage (morph), often mold -like. When a single fungus produces multiple ...
Karyogamy is the final step in the process of fusing together two haploid eukaryotic cells, and refers specifically to the fusion of the two nuclei. Before karyogamy, each haploid cell has one complete copy of the organism's genome. In order for karyogamy to occur, the cell membrane and cytoplasm of each cell must fuse with the other in a ...
The inner circuit illustrates the fully haploid "apogamic" life cycle. Both cycles exhibit all developmental stages. Physarum polycephalum, an acellular [ 1 ] slime mold or myxomycete popularly known as "the blob", [ 2 ] is a protist with diverse cellular forms and broad geographic distribution. The “acellular” moniker derives from the ...
Reproduction completes and perpetuates the cycle. In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then ...
An ascus (from Ancient Greek ἀσκός (askós) 'skin bag, wineskin'; pl.: asci) [1] is the sexual spore -bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or species can occur in numbers of ...