Rusts - PowerPoint PPT Presentation

Diseases Caused By Basidiomycetes

Diseases Caused By Basidiomycetes. Member of the order Uredinales Obligate biotrophs Multiple spore stages Heteroecious – needs two different hosts to comple life cycle. Rusts with two or fewer spore stages – microcyclic rusts Rusts with more than two spore stages – macrocyclic rusts.

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Physical and Chemical Changes

Physical and Chemical Changes. How to tell the difference. Physical Change. Substance may seem different, but the way the atoms link up is the same. It’s a physical change if. It changes shape or size It dissolves. It’s a physical change if.

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