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Biology
Posted 8 months ago

Heterobasidiomycetes do not produce fruiting bodies (usually) and are often parasitic. Using your text, look for the various structures that typify the different life - cycle stages of a rust. Using the available books as a guide, piece together a typical life - cycle. How many hosts are present?
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Answer from Sia
Posted 8 months ago
Answer
The typical life cycle of a rust fungus involves two hosts.
Solution
a
Primary host: This is the plant on which the rust fungus produces the most complex part of its life cycle, often resulting in the formation of uredinia and telia
b
Alternate host: This host is necessary for completing the life cycle, as it supports the stages that lead to the production of basidiospores and possibly pycnia and aecia
c
Life cycle stages: The rust fungus life cycle typically includes the following stages: basidiospores infecting the primary host, formation of pycnia, aecia, uredinia, and telia on the primary host, and basidiospores infecting the alternate host if present
Key Concept
Rust fungi life cycle and hosts
Explanation
Rust fungi often require two different host plants to complete their life cycle, with various structures formed at different stages.

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