Table of Contents
Why do we call Chytridiomycetes?
Chytridiomycota are a division of zoosporic organisms in the kingdom Fungi, informally known as chytrids. The name is derived from the Greek χυτρίδιον chytridion, meaning “little pot”, describing the structure containing unreleased zoospores.
What is the meaning of Dikarya?
Dikarya is a subkingdom of Fungi that includes the divisions Ascomycota and Basidiomycota, both of which in general produce dikaryons, may be filamentous or unicellular, but are always without flagella.
Are chytrids asexual?
Most chytrids are unicellular; a few form multicellular organisms and hyphae, which have no septa between cells (coenocytic). They reproduce both sexually and asexually; the asexual spores are called diploid zoospores. Their gametes are the only fungal cells known to have a flagellum.
What is unique to Dikarya?
The diverse class 2 endophytes include fungi from Ascomycota and a few more fungi belonging to Basidiomycota (Dikarya). Colonizing the root, stem, and leaves of the plants and the formation of extensive plant-fungal infections are the most distinguishing attributes of this group.
Which class of fungi shows Zygospore formation?
Zygomycota. Zygomycetous fungi are distinguished by the production of thick-walled zygospores (non-flagellated) that form in a special sporangium, the zygosporangium, following gametangial fusion. Hyphae are generally aseptate and asexual reproduction occurs by the formation of internally produced spores.
How do you identify chytrids?
Chytridiomycota, a phylum of fungi (kingdom Fungi) distinguished by having zoospores (motile cells) with a single, posterior, whiplash structure (flagellum). Species are microscopic in size, and most are found in freshwater or wet soils.
What is the difference between basidiomycetes and Ascomycetes?
The main difference between these two groups is in the way in which they produce their microscopic spores. In the Basidiomycetes, the spores are produced externally, on the end of specialised cells called basidia. In Ascomycetes, spores are produced internally, inside a sac called an ascus.