Dispersal, distribution and establishment of arbuscular mycorrhizal fungi: a review
The aim of this paper is to review and assess scientific literature relevant to arbuscular mycorrhizal fungi (AMF)population dynamics: reproduction and dispersal mechanisms, and establishment and distribution in natural ecosystems.Arbuscular mycorrhizal fungi (AMF) are obligated root symbionts with...
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2002 |
| País: | México |
| Recursos: | Universidad Autónoma Metropolitana |
| Repositório: | Redalyc-UAM |
| OAI Identifier: | oai:redalyc.org:57707102 |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=57707102 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Biología dispersal distribution establishment arbuscular mycorrhizal fungi |
| Resumo: | The aim of this paper is to review and assess scientific literature relevant to arbuscular mycorrhizal fungi (AMF)population dynamics: reproduction and dispersal mechanisms, and establishment and distribution in natural ecosystems.Arbuscular mycorrhizal fungi (AMF) are obligated root symbionts with an extraordinary capacity for growing, dispersing andsurviving, but their life history is not well understood yet. Although there is information concerning AMF dispersal, distributionand establishment, some data are still ambiguous and contradictory. Arbuscular mycorrhizal fungi (AMF) life cycleresponds to surrounding environment but even when they only reproduce asexually, their populations encompass a highgenetic and functional diversity within ecosystems. Environmental disturbances create new habitats for AMF dispersal, whichcan take place by root to root contact, animal transport and erosion processes. These agents are the common dispersal mechanismsof AMF in nature. Distribution of AMF is influenced mainly by the environment and soil and plant communities, butthe specific AMF-host plant association is thought to be secondary because the AMF must invade and colonize any host rootfor establishment. Thus, inoculum density, host and fungal genetic compatibility, edaphic factors and plant-microbial activitydetermine the formation of mycorrhizal infections. |
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