2008•MycoscienceRequires access

Arbuscular and ectomycorrhizal colonization of two Eucalyptus species in semiarid Brazil

Marcela C. Pagano, Maria Rita Scotti

Abstract

Our goal was to evaluate the mycorrhizal colonization, as well as the density of arbuscular mycorrhizal (AM) fungal spores, in Eucalyptus camaldulensis and E. grandis monocultures at 2 years in a semiarid part of Brazil. Soil and root samples were collected in 2 consecutive years. Eucalyptus camaldulensis showed varied AM colonization level according to season of sampling, and Glomus was dominant in spore numbers. Eucalyptus grandis showed dominant ectomycorrhizal (ECM) colonization and lower AM fungal spore density. Overall results suggest that E. camaldulensis has both AM and ECM dependencies, whereas E. grandis is solely ECM dependent in the monocultures.

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Key concepts: Eucalyptus camaldulensis, Biology, Colonization, Eucalyptus, Botany, Spore, Monoculture, Colonisation