Question

Which of the following are the common parasite of class-Basidiomycetes?
(A) Ustilago and Puccinia
(B) Agaricus and Trichoderma
(C) Alternaria and Colletotrichum (D) Colletotrichum and puccinia

Answer 1

Answer:

(C) Alternaria and Colletotrichum

Explanation:

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Answer 2

Ustilago and Puccinia are the common parasite of the class - Basidiomycetes.

• Basidiomycetes are filamentous, sexually producing fungi through spores called basidiospores.
• The three subphyla of Basidiomycota are - Pucciniomycotina, Ustilaginomycota, and Agricomycitina.
• Puccinia, commonly known as rust fungi belongs to the class of Pucciniomycotina are obligate plant parasites
• Puccinia requires a primary host (wheat) and a secondary host (Barberry) to complete its life cycle.
• Ustilago, commonly known as smut fungi belongs to the class of Ustilaginomycota and is a parasite of grasses.
• This fungus causes hypertrophy of the host cells and destroyed the flowering structure.
• Various species of Ustilago are eaten as delicacies.
• Trichoderma and Colletotrichum are the fungi of the class Sordariomycetes are soil-dwelling fungi. Trichoderma are used as used biostimulants, bio enhancers, and as a biocontrol method against various pathogens.
• Colletotrichum is symbionts with various plants as endophytes or phytopathogens.
• Agaricus is the fungus of class Agricomycitina, which involves the edible button mushroom and a few poisonous mushrooms such as Yellow-staining mushrooms.
• Alternaria is the genus of fungi belonging to Class Dueteromycetes. The species of this genus are common plant pathogens and common allergens to humans.

Hence, the correct answer is option (a) Ustilago and Puccinia

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