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Unformatted text preview: reproduce 6. (2 pts) Compare microcyclic and macrocyclic. Give a disease for each. Microcyclic is a rust fungus, such as Hemlock Twig Rust, that produces only teliospores and basidiospores. Macrocyclic is a rust fungus, such as Pine-Oak Gall Rust, that exhibits all five stages of the rust life cycle. 7. (2 pts) In macrocyclic rust diseases, what spore type infects the primary host? What spore type infects the secondary host? Aeciospores infect the primary host and basidiospores infect the secondary hosts. Find the following answers online or in the library. 8. (1 pt) What is the aecial (alternate) host of goldenrod rust? Pine Needle Rust 9. (1 pt) What is the aecial (alternate) host of touch-me-not (impatiens) rust? Puccinia graminis 10. (1 pt) What pathogen causes orange rust on Kentucky bluegrass? Puccinia graminis...
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- Spring '08
- Rust, Spore, Basidiomycota, Rust Diseases, Pine Needle Rust