Question:

Match List I with List II to identify the correct relationship between the fungal structure and its corresponding genus:

List I (Fungal Structure)
A. Pycnidia
B. Naked Hyphae
C. Synemata
D. Acervuli
E. Sporodochia

List II (Genera)
I. Diplodia
II. Cladosporium
III. Trichurus
IV. Melanconium
V. Tubercularia

Show Hint

To remember fungal asexual structures:
- Pycnidium = Flask-shaped (Diplodia)
- Acervulus = Saucer-shaped/Subepidermal (Melanconium, Colletotrichum)
- Synnema = Glued erect conidiophores (Trichurus)
- Sporodochium = Cushion-like (Tubercularia, Fusarium)
  • A-V, B-IV, C-III, D-II, E-I
  • A-I, B-II, C-III, D-IV, E-V
  • A-V, B-IV, C-II, D-III, E-I
  • A-IV, B-V, C-III, D-II, E-I
Show Solution
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Concept:
Asexual fruiting structures are specialized structures produced by fungi (especially in Deuteromycetes or anamorphic fungi) to bear conidiogenous cells and conidia.
Understanding the morphology of these asexual states is crucial for fungal classification and identification.
Detailed Explanation:
The matching of each structure to its corresponding genus is explained as follows:
A. Pycnidia (I. Diplodia):
Pycnidia are flask-shaped asexual fruiting bodies lined with conidiophores.
The genus Diplodia produces distinct dark-colored, pycnidial structures containing two-celled conidia.
B. Naked Hyphae (II. Cladosporium):
Some fungi do not produce complex, enclosed fruiting structures.
Instead, their conidiophores arise naked and exposed directly from the vegetative mycelium.
The genus Cladosporium is a classic example of a fungus producing naked hyphae and conidiophores.
C. Synemata (III. Trichurus):
A synnema (plural: synnemata) is a structural aggregation of erect conidiophores fused together along their length, forming a column-like structure.
The genus Trichurus produces well-defined synnemata.
D. Acervuli (IV. Melanconium):
An acervulus is a flat, saucer-shaped, subepidermal asexual fruiting body containing a layer of short conidiophores.
The genus Melanconium characteristically produces acervuli that rupture the host epidermis.
E. Sporodochia (V. Tubercularia):
A sporodochium is a cushion-like mass of conidiophores clustered tightly together on a stromatic mattress.
The genus Tubercularia (the anamorph of Nectria) is known for producing colorful, cushion-like sporodochia.

Step 2: Final Answer:

Matching the pairs: A matches with I, B matches with II, C matches with III, D matches with IV, and E matches with V.
Therefore, the correct option matching this sequence is Option (B).
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