The arbuscular mycorrhiza (AM) symbiosis is formed by a monophyletic group of fungi from the phylum Glomeromycota and the roots of 70–90% of land plant species. AM fungi are considered to be ...

Some 80 per cent of plants are colonised by fungi that form the familiar network of fine white threads that hang off many roots. The threads, called mycorrhizae, take in water and minerals from ...