Fungal growth and nutrition

How does a fungus grow?

What are the important nutrients and how do fungi get hold of them?

The fungal hyphae grow at the tip (apex). Cell wall material is transported in vesicles from older parts towards the tip region as described earlier. The newly formed cell wall at the tip is relatively plastic. The tip is stabilised by the actin cytoskeleton. Further back from the tip the cell wall becomes more cross-linked and thus stronger (Fig 1)

Increasing wall cross-linking decreasing actin cytoskeleton

Increasing wall cross-linking decreasing actin cytoskeleton

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