Data/hora: 08/06/2024 12:52:02

Provedor de dados: | Brazilian Journal of Microbiology
País: | Brazil
Título: | Vesicular-arbuscular-/ecto-mycorrhiza succession in seedlings of. Eucalyptus spp.
Autores: | Santos,Vera Lúcia dos; Muchovej,Rosa Maria; Borges,Arnaldo Chaer; Neves,Júlio César L.; Kasuya,Maria Catarina M.
Data: | 2001-06-01
Ano: | 2001
Palavras-chave: | Glomus etunicatum; Pisolithus tinctorius; Succession; Eucalyptus.
Resumo: | The occurrence of vesicular-arbuscular mycorrhizae (AM) and ectomycorrhizae (ECM) in the same root system was observed when species of Eucalyptus urophylla S.T. Blake, E. citriodora Hook f., E. grandis W. Hill ex Maiden, E. cloeziana F. Muell. and E. camaldulensis Dehnh were simultaneously inoculated with Glomus etunicatum Becker &amp;amp; Gederman and Pisolithus tinctorius (Per.) Cocker &amp;amp; Couch, isolate Pt 90A. The succession between the two fungi was observed. In general ectomycorrhizal colonization increased followed by a decrease in AM. Pisolithus tinctorius was favored in simultaneous inoculation with G. etunicatum, and the positive effect of the simultaneous inoculation of both fungi in the percent colonization by the AM fungus occurred up to 60 days after inoculation. After 120 days, colonization of roots by G. etunicatum decreased in the presence of P. tinctorius. When inoculated simultaneously, the proportion of AM and ECM varied with evaluation time, while the combined percentage of mycorrhizal roots approached the maximum and remained more or less constant after 60 days, suggesting that there could be competition between the fungi for limiting substrate. The maximum percent mycorrhizal colonization varied with Eucalyptus species and the highest value was observed for E. camaldulensis, followed in order by E. citriodora, E. urophylla, E. grandis and E. cloeziana.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200002
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822001000200002
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.32 n.2 2001
Fonte: | info:eu-repo/semantics/openAccess