Life Cycle
All rusts are obligate parasites, meaning that they require a living host to complete their life cycle. They generally do not kill the host plant but can severely reduce growth and yield. Cereal crops can be devastated in one season and trees that get infected in the main stem within the first five years, invariably die.
Rust fungi can also be categorized by their life cycle. Heteroecious rust fungi require two unrelated hosts to complete their life cycle, with the primary host being infected by aeciospores and the alternate host being infected with basidiospores. This can be contrasted with an autoecious fungus which can complete its life cycle on a single host species.
Read more about this topic: Rust (fungus)
Famous quotes containing the words life and/or cycle:
“I declare
Two lineages electrify the air,
That will like pennons from a mast
Fly over sleep and life and death
Till sun is powerless to decoy
A single seed above the earth:
Lineage of sorrow: lineage of joy....”
—Philip Larkin (1922–1986)
“Only mediocrities progress. An artist revolves in a cycle of masterpieces, the first of which is no less perfect than the last.”
—Oscar Wilde (1854–1900)