Soil disturbance reduces the infectivity of external hyphae of vesicular—arbuscular mycorrhizal fungi

D. A. Jasper, L. K. Abbott, A. D. Robson

Research output: Contribution to journalArticle

191 Citations (Scopus)

Abstract

We conducted two glasshouse experiments to determine the effect of soil disturbance on the infectivity of external hyphae of vesicular–arbuscular (VA) mycorrhizal fungi. A nylon mesh was used to exclude plant roots while allowing fungal hyphae to grow into soil contained by the mesh. Hyphae of VA mycorrhizal fungi that had been separated from the original host plant root were still able to colonize bioassay plants rapidly and extensively. However, disturbance of the soil inside the mesh, by mixing for 1 min, almost eliminated subsequent VA mycorrhiza formation in that soil. Damage to the soil hyphal network by soil disturbance may contribute to the losses in mycorrhizal infectivity that have been observed after mining and cultivation.

Original languageEnglish
Pages (from-to)93-99
Number of pages7
JournalNew Phytologist
Volume112
Issue number1
DOIs
Publication statusPublished - May 1989

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