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Dynamics of Ectomycorrhizas and Actinorhizal Associations

  • Hiroaki Okabe
Part of the Ecological Studies book series (ECOLSTUD, volume 158)

Abstract

A mycorrhiza is a symbiotic association between a plant root and a fungus. Mycorrhizas are classified into seven categories according to how the fungi penetrate the root cells, i.e., arbuscular mycorrhiza (forming a symbiotic association between more than 80% of vascular plants and zygomycetous fungi in the Glomales), ectomycorrhiza (an association between about 3% of seed plants and basidiomycetous fungi), ascomycetous and zygomycetous fungi, ericoid mycorrhiza, ectendomycorrhiza, arbutoid mycorrhiza, and monotropoid and orchidoid mycorrhiza (Smith and Read 1997; Raina et al. 2000). Mycorrhizal associations, both directly and indirectly, play a very important role in forest ecosystems: they enhance the uptake of water and plant nutrients, they promote plant growth, they increase resistance to drought, freezing, salinity, and root pathogens, they influence plant communities, and they play a role in the circulation of materials.

Keywords

Arbuscular Mycorrhizal Fungus Fine Root Fruiting Body Arbuscular Mycorrhiza Ectomycorrhizal Fungus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Japan 2002

Authors and Affiliations

  • Hiroaki Okabe

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