24. LE 31-5–3 Haploid ( n ) Key Heterokaryotic (unfused nuclei from different parents) Diploid (2 n ) PLASMOGAMY (fusion of cytoplasm) Heterokaryotic stage KARYOGAMY (fusion of nuclei) Mycelium SEXUAL REPRODUCTION Zygote Spores GERMINATION MEIOSIS Spore-producing structures ASEXUAL REPRODUCTION Spores GERMINATION Spore-producing structures
25.
26.
27. Mycelium Key Haploid ( n ) Heterokaryotic (unfused nuclei from different parents) Diploid (2 n ) PLASMOGAMY (fusion of cytoplasm)
28.
29. Mycelium Key Haploid ( n ) Heterokaryotic (unfused nuclei from different parents) Diploid (2 n ) PLASMOGAMY (fusion of cytoplasm) Heterokaryotic stage
30.
31.
32. Key Haploid ( n ) Heterokaryotic (unfused nuclei from different parents) Diploid (2 n ) Key Haploid ( n ) Heterokaryotic (unfused nuclei from different parents) Diploid (2 n ) MEIOSIS Spore-producing structures KARYOGAMY (fusion of nuclei) Zygote
33.
34. Reproducción sexual Mycelium GERMINATION MEIOSIS Spore-producing structures Spores Key Haploid ( n ) Heterokaryotic (unfused nuclei from different parents) Diploid (2 n ) PLASMOGAMY (fusion of cytoplasm) Heterokaryotic stage KARYOGAMY (fusion of nuclei) SEXUAL REPRODUCTION Zygote
35.
36. Spore-producing structures Spores ASEXUAL REPRODUCTION GERMINATION Mycelium Key Haploid ( n ) Heterokaryotic (unfused nuclei from different parents) Diploid (2 n )
37. LE 31-5–3 Haploid ( n ) Key Heterokaryotic (unfused nuclei from different parents) Diploid (2 n ) PLASMOGAMY (fusion of cytoplasm) Heterokaryotic stage KARYOGAMY (fusion of nuclei) Mycelium SEXUAL REPRODUCTION Zygote Spores GERMINATION MEIOSIS Spore-producing structures ASEXUAL REPRODUCTION Spores GERMINATION Spore-producing structures
38.
39.
40.
41.
42.
43.
44.
45.
46. LE 31-9 Chytrids Zygote fungi Arbuscular mycorrhizal fungi Sac fungi Club fungi Basidiomycota Ascomycota Glomeromycota Zygomycota Chytridiomycota
47.
48.
49.
50.
51. LE 31-12 Rhizopus growing on bread Mating type (+) Mating type (–) Gametangia with haploid nuclei PLASMOGAMY Key Haploid ( n ) Heterokaryotic ( n + n ) Diploid (2 n ) 100 µm Young zygosporangium (heterokaryotic) SEXUAL REPRODUCTION KARYOGAMY Zygosporangium (heterokaryotic) Diploid nuclei MEIOSIS Sporangium Mycelium Dispersal and germination Dispersal and germination ASEXUAL REPRODUCTION Sporangia 50 µm
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64. LE 31-17 PLASMOGAMY Key Haploid ( n ) Dikaryotic ( n + n ) Diploid (2 n ) SEXUAL REPRODUCTION KARYOGAMY Four haploid nuclei MEIOSIS Dikaryotic hyphae extended from ascogonium ASEXUAL REPRODUCTION Diploid nucleus (zygote) Dispersal Germination Mycelium Mycelia Conidiophore Conidia; mating type (–) Mating type (+) Ascus (dikaryotic) Eight ascospores Asci Ascocarp Germination Dispersal
65.
66.
67.
68. LE 31-20 PLASMOGAMY Key Haploid ( n ) Dikaryotic ( n + n ) Diploid (2 n ) SEXUAL REPRODUCTION KARYOGAMY MEIOSIS Dikaryotic mycelium Basidium containing four haploid nuclei Dispersal and germination Basidium 1 µm Mating type (+) Mating type (–) Haploid mycelia Gills lined with basidia Basidiocarp (dikaryotic) Basidia (dikaryotic) Diploid nuclei Basidiospore Basidium with four appendages Basidiospores