word haustor meaning the one who draws, drains or drinks, and refers to the action performed by the outgrowth.

In fungi

Fungi in all major divisions form haustoria. Haustoria take several forms. Generally, on penetration, the fungus increases the surface area in contact with host plasma membrane releasing enzymes that break up the cell walls, enabling greater potential movement of organic carbon from host to fungus. Thus, an insect hosting a parasitic

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