Question
What is the causal agent of wheat rust? Briefly describe its disease cycle.
Answer :
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Wheat rust is caused by fungi belonging to the genus *Puccinia*, with the most common species being *Puccinia triticina* (leaf rust), *Puccinia graminis* (stem rust), and *Puccinia striiformis* (stripe rust). These fungi are obligate parasites, meaning they require living host tissue to complete their life cycle. The disease is characterized by reddish-brown, orange, or yellow pustules on wheat leaves, stems, and sometimes spikes, which reduce photosynthetic efficiency and grain yield. The disease cycle of wheat rust is complex and often involves multiple spore stages. For
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