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Question
Which spores of Puccinia cause primary infection in wheat plant?
Which spores of Puccinia cause primary infection in wheat plant?
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Solution
The correct option is D Aeciospores
Basidiospores cannot infect the primary host wheat and infect secondary host berybery. Teleutospores germinate independently to form a four-celled structure basidium which in turn produce uninucleate, asymmetrical and colourless basidiospores. Aeciospores are thin walled unicellular, binucleate orange coloured spores which are borne on berybery plant and are disseminated by wind to wheat plants to cause primary infection. Uredial pustules are formed by primary infection of wheat by aeciospores, these uredial pustules carry uredospores which in turn cause secondary infection of the primary host, wheat. Thus, the correct answer is option D.
Basidiospores cannot infect the primary host wheat and infect secondary host berybery.
Teleutospores germinate independently to form a four-celled structure basidium which in turn produce uninucleate, asymmetrical and colourless basidiospores.
Aeciospores are thin walled unicellular, binucleate orange coloured spores which are borne on berybery plant and are disseminated by wind to wheat plants to cause primary infection.
Uredial pustules are formed by primary infection of wheat by aeciospores, these uredial pustules carry uredospores which in turn cause secondary infection of the primary host, wheat.
Thus, the correct answer is option D.
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