Appressorium
Encyclopedia
An appressorium is a flattened, hypha
Hypha
A hypha is a long, branching filamentous structure of a fungus, and also of unrelated Actinobacteria. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium; yeasts are unicellular fungi that do not grow as hyphae.-Structure:A hypha consists of one or...

l "pressing" organ, from which a minute infection peg grows and enters the host, using turgor pressure capable of punching through even Mylar.

Fungi that exhibit appressorial formation include the necrotroph Pyrenophora teres
Pyrenophora teres
Pyrenophora teres is a necrotrophic fungal pathogen of some plant species, the most significant of which are economically important agricultural crops such as barley.- Dispersal and spread :...

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