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The Arbuscular Mycorrhizal Symbiosis

  • Chapter
Plant-Microbe Interactions

Abstract

The term mycorrhiza is used to describe a broad range of mutualistic associations formed between plant roots and fungi. Such associations exist in the majority of land plant species and therefore in ecosystems throughout the world. A study of the occurrence of mycorrhizas in the British flora provides an example of their distribution; 80% of the angiosperm species, 100% of the gymnosperms, and 70% of the pteridophytes were able to form mycorrhizal associations.1 A number of different types of mycorrhizal association are morphologically and physiologically diverse, and their structures and functions depend on the symbionts involved.2 This chapter will focus on the most common type of mycorrhizal association, the arbuscular mycorrhiza (AM).2 This association is also referred to as the vesicular-arbuscular mycorrhiza (VAM) but because the arbuscule is the unifying feature of these associations and vesicles are formed only by a subset of AM fungi, it has been proposed recently that the name be simplified to arbuscular. 3,4 Currently both terms are found in the literature.

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  1. Maria J. Harrison
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  1. University of Tennessee, Knoxville, USA

    Gary Stacey

  2. University of California, Riverside, USA

    Noel T. Keen

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Harrison, M.J. (1997). The Arbuscular Mycorrhizal Symbiosis. In: Stacey, G., Keen, N.T. (eds) Plant-Microbe Interactions. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-6019-7_1

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