Basidiomycota are
typically filamentous fungi composed of hyphae
. Most species reproduce sexually with a club-shaped spore-bearing organ (basidium
What are the characteristics of Basidiomycetes class 11?
Basidiomycetes
have branched and septate mycelium
. They have a long-live dikaryotic stage, which gives rise to basidium. Karyogamy and meiosis occur in basidium.
What makes basidiomycota unique?
One of the most fascinating characteristics of Basidiomycota is
the production of forcibly discharged ballistospores
(Fig. 2), which are propelled into the air from the sterigma. Ballistospores may be sexual or asexual, and may be produced by basidia, hyphae, yeast cells, or even other ballistospores.
Which characteristics separate the Basidiomycetes from the other fungi?
Distinctive features and life cycle of the basidiomycota
As a group, the basidiomycota have some highly characteristic features, which separate them from other fungi. They are the most evolutionarily advanced fungi, and even their hyphae have a
dinstinctly “cellular” composition
.
Why is basidiomycota important?
Basidiomycetes are
essential in carbon cycling in temperate and boreal forests
, as wood decomposers and ectomycorrhizal symbionts. They form underground resource-sharing networks (the ‘wood-wide web’) which support plant biodiversity in forest ecosystems. … Rusts and smuts cause major crop losses.
What is the difference between ascomycetes and Basidiomycetes?
In basidiomycetes, spores are produced externally attached to basidium whereas, in ascomycetes, spores are produced internally within the ascus. … In contrast,
ascomycetes can produce both conidia and ascuspores as their spores
. • Unlike the basidiomycetes, ascomycetes have single-celled fungal species called yeast.
What are five types of Basidiomycetes?
Basidiomycetes include
mushrooms, puffballs, rusts, smuts and jelly fungi
.
How do humans use Basidiomycota?
While mushrooms are used for food, there are also many other uses humans have for Basidiomycota. For example, the toxin phalloidin, found in the mushroom Amanita phalloides, is incorporated into flourescent stains that are used by cell biologists to view the cytoskeleton.
What is the common name of Basidiomycota?
| Group Common Name Hyphal Organization | Ascomycota Sac fungi septate hyphae | Basidiomycota Club fungi septate hyphae | Glomeromycota Mycorrhizae coenocytic hyphae | Microsporidia Often still referred to as protists N/A |
|---|
How do you identify Basidiomycota?
A feature used to identify Basidiomycota, aside from the presence of basidia, is
the degree of separation between individual cells
. Basidiomycota have more septate hyphae than Zygomycota, though their septae are perforated, allowing cytoplasm to flow freely between cells.
Which disease is caused by members of Basidiomycetes?
The species that causes
cryptococcal meningitis
in persons suffering compromised immunity (due to HIV infection, cancer chemotherapy, metabolic immunosuppression to maintain a transplanted organ) is also a basidiomycete; the disease is caused by the asexual form (called the anamorph), which grows as a yeast.
What characteristics are used to classify fungi?
- Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms.
- They may be unicellular or filamentous.
- They reproduce by means of spores.
- Fungi exhibit the phenomenon of alternation of generation.
- Fungi lack chlorophyll and hence cannot perform photosynthesis.
What are the four groups of true fungi?
Fungi are usually classified in four divisions: the
Chytridiomycota (chytrids), Zygomycota (bread molds), Ascomycota (yeasts and sac fungi), and the Basidiomycota (club fungi)
. Placement into a division is based on the way in which the fungus reproduces sexually.
What is the life cycle of Basidiomycota?
The lifecycle of basidiomycetes includes
sexual and asexual reproduction
(Figure 2). Most fungi are haploid through most of their life cycles, but the basidiomycetes produce both haploid and dikaryotic mycelia, with the dikaryotic phase being dominant.
Is Basidiomycota edible?
There are
many edible fungi
in the Basidiomycota (e.g. mushrooms, jelly fungi) and some species are cultivated. The basidiomycetes are also important as sources for usuful material (e.g. toxins, enzymes, pigments).
What is the shape of Basidiomycota?
The Basidiomycota bear their sexual spores externally on
a usually club-shaped structure
called a basidium, which is often borne on or in a fruiting body called a basidiocarp or basidiome (Figure 7).
