Durability of five native Argentine wood species of the genera <Emphasis Type="Italic">Prosopis</Emphasis> and <Emphasis Type="Italic">Acacia</Emphasis> decayed by rot fungi and its relationship with extractive content |
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| Authors: | Carolina L Pometti Sabrina Palanti Benedetto Pizzo Jean-Paul Charpentier Nathalie Boizot Claudio Resio Beatriz O Saidman |
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| Institution: | 1.Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución, Laboratorio de Genética,Universidad de Buenos Aires,Buenos Aires,Argentina;2.CNR-IVALSA,Sesto Fiorentino,Italy;3.INRA, GENOBOIS,Orleans Cedex 2,France;4.SILVACHIMICA S.r.l,San Michele di Mondovì,Italy |
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| Abstract: | The natural durability of four Argentinean species of Prosopis and one of Acacia was evaluated in laboratory tests, according to European standards, using three brown rot and one white rot fungi. These
tests were complemented by assessing the wood chemical composition. All the species were from moderately slightly durable
to very durable (classes 4–1), and in all cases the heartwood was the most resistant to fungal attack. Chemical extractives
content (organic, aqueous, tannic and phenolic) was higher in the heartwood. However, species durability was not related to
extractive contents nor with wood density. Instead, it is possible that extractives could contribute to natural durability
in different ways, including the effects related to the antioxidant properties of some of them. |
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