Arbuscular mycorrhizal communities associated with maples (Acer spp.) in a common garden are influenced by season and host plant

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Publication details

JournalBotany
DateE-pub ahead of print - 24 Feb 2014
DatePublished (current) - Apr 2014
Issue number4
Volume92
Number of pages6
Pages (from-to)321-326
Early online date24/02/14
Original languageEnglish

Abstract

The arbuscular mycorrhizal (AM) fungi are ubiquitous biotrophic root endophytes that form a significant link in macronutrient cycles. The AM fungi occupy two niches simultaneously, the intraradical niche, from which they gain carbon, and the bulk soil. We predict that AM community structure will vary through time, depending upon season and plant identity. In this study, we compared the AM fungal community colonising eight species of Acer L. (maple) grown in an arboretum. DNA from root samples was analysed using terminal restriction fragment length polymorphism (TRFLP) of AM fungal sequences. Three time points were sampled during the growing season, and ordination analysis showed this was the most important factor discriminating the TRFLP profiles. Analysis of each month separately showed that the host species was a significant factor in all samplings, but that the response of each species through time was different. This study demonstrates the dynamic nature of AM communities, and the importance of sampling habitats throughout the season to generate a complete picture of the AM community.

    Research areas

  • Maple, TRFLP, Arbuscular mycorrhizas, Communities, Seasonality

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