Resumo

GALINDO-FLORES, Gema; CASTILLO-GUEVARA, Citlalli; CAMPOS-LOPEZ, Alberto  e  LARA, Carlos. Characterization of ectomicorrizas formed by Laccaria trichodermophora and Suillus tomentosus in Pinus montezumae. Bot. sci [online]. 2015, vol.93, n.4, pp.855-863. ISSN 2007-4476.  https://doi.org/10.17129/botsci.200.

Species of the genus Pinus have a great ecological dependence on the ectomycorrhizal association. However, despite the importance of ectomycorrhiza in forest ecosystems morphological descriptions available of these associations are rare. In this paper the first macroscopic and microscopic morphological characterization of ectomycorrhiza formed by Laccaria trichodermophora and Suillus tomentosus in Pinus montezumae was performed. The synthesis of the studied mycorrhiza was performed by inoculation with spores in a sterile substrate under greenhouse conditions. Laccaria trichodermophora presented coraloide branch type, mantle with a thickness of 46.05 μm; length of the root system from 0.4 to 2.9 mm; without rhizomorphs. Suillus tomentosus presented coraloide branch type, mantle with a thickness of 48.03 μm; length of the root system from 0.4 to 1.6 mm; without rhizomorphs. Most of the characteristics described are consistent with those published for genus Suillus and Laccaria. Morphological knowledge will allow to perform a fast detection in in vitro and ex situ studies of the useful mycorrhiza formed to produce inoculants management and conservation of forest systems.

Palavras-chave : ectomycorrhizal fungi; forest ecosystems; morphological description; mycorrhiza.

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