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Plant Pathology
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When all the five stages are present in the life cycle of rust, it is known as

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Correct Answer: Option B
When all five stages are present in the life cycle of rust, it is known as Macrocyclic.
All rusts are obligate parasites, meaning that they require a living host to complete their life cycle. All 5 stages of their life cycle are Pycniospores, Aeciospores, Urediniospores, Teliospores and Basidiospores.
The one where all these five stages are present is termed Macrocyclic.
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