3
Which of the following genera of fungi infect the dry flower materials?
(A) . Aspergillus
(B) . Penicillium
(C) . Rhizopus
(D) . Fusarium
Choose the correct answer from the options given below:
EXPLANATION
Dehydration Technology, Pressed Flowers & Dry
- Fungal Pathogens of Dried Flower Materials:
- Dried botanical products (everlasting flowers, pods, cones, foliage) must maintain low moisture ($\lt 10-12\%$) during storage and transport.
- When exposed to ambient relative humidity ($\gt 65\%$), ubiquitous saprophytic xerophilic and storage molds colonize dried specimens:
- Aspergillus (e.g., A. niger, A. flavus): Produces dark powdery mycelia.
- Penicillium: Causes green/blue powdery surface molds.
- Rhizopus: Soft fluffy black bread mold.
- (D) Fusarium: Primarily a necrotrophic/vascular wilt soil-borne pathogen of actively growing plants, not a dry storage saprophyte.
- Correct Option: Option 3 ((A), (B) and (C) only).
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