Morphological and molecular characterization of Pisolithus in soil under eucalyptus plantations in Brazil

Eighteen Pisolithus basidiomes were collected from Eucalyptus plantations in the state of Minas Gerais, Brazil. These basidiomes were characterized morphologically and molecularly. The basidiomes varied in shape, color and size. One of them was found underground, indicating a hypogeous fungus. The m...

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Veröffentlicht in:Revista Brasileira de Ciência do Solo 2010-12, Vol.34 (6), p.1891-1898
Hauptverfasser: Kasuya, Maria Catarina Megumi(Federal University of Viçosa Microbiology Department), Coelho, Irene da Silva(Federal University of Viçosa Microbiology Department), Campos, Daniela Tiago da Silva(Federal University of Mato Grosso Agricultural Microbiology, Department), Araújo, Elza Fernandes de(Federal University of Viçosa Microbiology Department), Tamai, Yutaka(Hokkaido University Division of Environmental Resources), Miyamoto, Toshizumi(Hokkaido University Division of Environmental Resources)
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Sprache:eng
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Zusammenfassung:Eighteen Pisolithus basidiomes were collected from Eucalyptus plantations in the state of Minas Gerais, Brazil. These basidiomes were characterized morphologically and molecularly. The basidiomes varied in shape, color and size. One of them was found underground, indicating a hypogeous fungus. The main morphological distinctive characteristic was spore ornamentation, which distinguished two groups. One group with short and erect spines was identified as Pisolithus microcarpus, and the other with long and curved spines as Pisolithus marmoratus, after analyzing the cladogram obtained by phylogenetic relationship based on internal transcribed spacer (ITS) regions of the nuclear ribosomal DNA of these isolates. Dezoito basidiocarpos de Pisolithus foram coletados em plantações comerciais de Eucalyptus no Estado de Minas Gerais, no Brasil. Esses basidiocarpos foram caracterizados morfológica e molecularmente. Eles variaram na forma, cor e tamanho. Além disso, um deles foi encontrado abaixo do solo, sugerindo que seja um hipógeo. A principal característica morfológica distintiva foi a ornamentação dos esporos, que foram separados em dois grupos: um apresentou espículas curtas e eretas, e o outro, espículas longas e curvas. Eles foram identificados, respectivamente, como Pisolithus microcarpus e Pisolithus marmoratus, depois da análise do cladograma obtido pela relação filogenética baseada no espaçador interno transcrito (ITS) do DNA ribossomal nuclear desses isolados.
ISSN:0100-0683
1806-9657
0100-0683
DOI:10.1590/S0100-06832010000600013