First-year examples and those with original paint and exhaust systems (factory mufflers tended to rust quickly) generally command premium prices.
See which body areas tend to develop rust.
The presence of surface rust tends to impede the flow of electric current and the diffusion of iron ions is reduced, thereby decreasing the rate of corrosion.
Rust infection also tended to be lower in northern populations (mean proportion of rust-infected plants in northern populations: 0.07; in southern populations: 0.26) but this difference was not statistically significant (t-test of north south comparison: t = −1.64, df = 16, p = 0.12).
Rust fungi tend to be incredibly specific.
Copper and bronze may be preferable to anodized aluminum, which doesn't rust but tends to become caked up with oxidized "gunk".
For example, the rust fungi tend to have intermediates in 24-ethyl cholesterol biosynthesis as major sterols.
Consistent with the observed north south patterns in rust and weevil incidence, infection levels by rust and weevils tended to be lower in apomictic populations than in sexual populations; however, these relations were not statistically significant.
In general, larger, expanded families tended to have related sequences in all other rusts, including the bean rust (which is only represented by a small partial EST set).
Similarly, obligately biotrophic pathogenic fungi such as rusts and smuts tend to have much narrower host ranges than do facultative necrotrophic pathogens (Oliver and Ipcho 2004).
Unlike leaf spots, rust-infected leaves tend to remain attached to the plant, and this, combined with a short life cycle, favor fast and prolific pathogen multiplication and rapid spread of the disease.
