Phase contrast photomicrographs of living trichomycetes illustrating sexual and asexual reproductive structures.

Phase contrast photomicrographs illustrating sexual and asexual reproductive structures in phylum Zoopagomycota. A–I. Harpellales from aquatic insect larvae. A: Orphella catalaunica, sporulating heads with attached cylindrical asexual spores. B–C: Harpellomyces eccentricus, trichospores in B with their appendages visible within generative cells; C shows a zygospore arising from conjugated cells. D: Smittium culisetae, trichospores attached to fertile branchlets. E, F: Capniomyces stellatus, E = attached, biconical zygospore and immature trichospores; F, released trichospores with multiple appendages. G: Furculomyces boomerangus, released bent zygospore with a short collar. H, I: Genistelloides hibernus, H = biconical zygospores with swollen zygosporophores (similar to suspensors in other zygomycetes) attached to two conjugated branches; I = released trichospore with two appendages. J. Asellariales from a marine isopod, Asellaria ligiae, thallus attached by a holdfast cell to the hindgut cuticle and releasing small cylindrical arthrospores. Scale bars: A–I = 20 µm; J = 100 µm. Modified from White et al., 2006 using graphic files kindly supplied by Dr Merlin White, Boise State University, Idaho, USA. Reprinted with permission from Mycologia. ©The Mycological Society of America.