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Title: Litter decomposing and ectomycorrhizal Basidiomycetes in an igapó forest
Authors: Singer, Rolf
Aguiar, Izonete Araujo
Keywords: Aldina Latifolia
Swartzia Polyphylla
Issue Date: 1986
metadata.dc.publisher.journal: Plant Systematics and Evolution
metadata.dc.relation.ispartof: Volume 153, Número 1-2, Pags. 107-117
Abstract: An igapó forest near the confluence of Rio Tarumã Mirim (Tarumãzinho) and Rio Negro has been studied. It is a typical ectotroph forest with a raw humus layer and suppressed litter decomposing activity by Higher (i.e., carpophore-producing) Fungi. The number of the latter is about one-fifth of that observed in the (anectotrophic) terra firme forest. All ectotrophically mycorrhizal fungi observed belonged in three families:Amanitaceae, Boletaceae, Russulaceae. Leguminosae are dominant, and of these Aldina latifolia and Swartzia cf. polyphylla were demonstrably ectomycorrhizal. The scarcity of mineral nutrients in the soils of igapó, campinarana and campina is overcome by direct cycling through ectomycorrhizae. This is in contrast to other black- and white-water inundated forest communities in Amazonia. © 1986 Springer-Verlag.
metadata.dc.identifier.doi: 10.1007/BF00989420
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