Question

Fungi imperfecti (Deuteromycetes) lack:
1. Hyphae
2. Spores
3. Asexual reproduction
4. Sexual reproduction

Answer 1

Correct Answer - Option 4 : Sexual reproduction

Concept:

• Fungi constitute a unique kingdom of heterotrophic organisms.
• Fungi show a great diversity in morphology and habitat.
• Fungi are cosmopolitan and occur in air, water, soil, animals, and plants.
• The study of fungi is Mycology.
• Fungi are categorized into 4  classes: Ascomycetes, basidiomycetes, Phycomycetes & Deuteromycetes

Explanation:

Deuteromycetes

• The fungi belonging to this group lack sexual reproduction and are called imperfect fungi. 
• Only the asexual or vegetative phases of these fungi are known
• The Deuteromycetes reproduce only by asexual spores known as conidia.
• The mycelium is septate and branched. Some members are saprophytes or parasites while a large number of them are decomposers of litter and help in mineral cycling.
• Ex-  Alternaria, Colletotrichum and Trichoderma.

• Phycomycetes
  • ‘Phycomycetes’ include fungal species of Oomycetes, Chytridiomycetes, and Zygomycetes.
  • They are considered as lower fungi.
• Ascomycetes
  • Ascomycetes include a wide range of fungi such as yeasts, powdery mildews, cup fungi, morels.
  • ex- Morchella, Peziza
• Basidiomycetes
  • Basidiomycetes include puffballs, toadstools, bird’s nest fungi, bracket fungi, stinkhorns, rusts, and smuts.
  • ex- Agaricus, Geaster