Occurrence Puccinia is large genus. It has several obligatory parasitic species.tritici is a parasite of wheat. It completes its life cycle in two different hosts: wheat and barely. Thus it is hetcrocious rust. It infects the stem of wheat and causes black or stem rust.   Life cycle The life cycle of Puccina is divided into five stages on the ...

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Agaricus Campestris

The members of this genus are commonly called mushrooms. Mushrooms grow on soil. They are abundantly found on soil with decry plant material and moisture. The specie ,4garietts campsites is very common. This species is edible. It is cult hated for commercial purposes. General structure The mature plant body is composed of two parts: vegetative mycelium and sporophores Vegetative mycelium: ...

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(a) Role of fungi in Agriculture or crop production Decomposition and humus formation: Fungi decompose the dead animals and plants. Fungi change them into humus. rums is decomposed organic matter. It plays an important role in germination of plant. It provides important nutrient to plants. Humus also holds the soil particles. Thus it reduces the chance of soil erosion. Humus ...

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Fungal diseases in plants

RUSTS Causative agent: Puccinia graminh (Basidiomycota) Affected plants: Wheat, barberry Symptoms: Reddish streaks (pustules) appear on the stems and other parts of wheat. These streaks may affect most of the plant. They give rusted appearance to whole of the plant. As the season advance-, the streaks change from red to bl wk. The crop gives burnt dried look. The barberry ...

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