Definition

A reddish or black structure that appears on plants infected by a type of fungus, which produces spores.

Example

The uredinium on the leaves indicated that the plant was infected with a rust fungus.

Conversation

Have you ever seen an uredinium on a plant before?

Yeah, I spotted one in the garden last week.

It's fascinating how they form those little pustules.

I know, right? They really show how plants can react to fungi.

Synonyms & Antonyms

Root Explanation

Uredinium is derived from the Latin root "uredo" (meaning rust) and the suffix "-ium" (a common suffix used in biology to denote a structure or a place). The term refers to a structure associated with rust fungi, specifically the spore-producing stage of certain fungi that cause rust diseases in plants.

Memory Tip

Think of 'rust' ('uredo') to remember that 'uredinium' refers to a structure related to rust fungi.

Visually Confused Words