Data/hora: 04/06/2024 12:43:17

Provedor de dados: | 58
País: | Brazil
Título: | Occurrence and diversity of arbuscular mycorrhizal fungi in trap cultures from soils under different land use systems in the Amazon, Brazil
Autores: | Leal,Patrícia Lopes; Stürmer,Sidney Luiz; Siqueira,José Oswaldo.
Data: | 2009-03-01
Ano: | 2009
Palavras-chave: | Amazon Forest; Soil fungi; Species diversity; Pot cultures; Pastures; Agroforestry systems.
Resumo: | The aim of this work was to evaluate the occurrence of arbuscular mycorrhizal fungi (AMF) species diversity in soil samples from the Amazon region under distinct land use systems (Forest, Old Secondary Forest, Young Secondary Forest, Agroforestry systems, Crops and Pasture) using two distinct trap cultures. Traps established using Sorghum sudanense and Vigna unguiculata (at Universidade Regional de Blumenau - FURB) and Brachiaria decumbens and Neonotonia wightii (at Universidade Federal de Lavras - UFLA) were grown for 150 days in greenhouse conditions, when spore density and species identification were evaluated. A great variation on species richness was detected in several samples, regardless of the land use systems from where samples were obtained. A total number of 24 AMF species were recovered using both methods of trap cultures, with FURB';s traps yielding higher number of species. Acaulospora delicata, A. foveata, Entrophospora colombiana and two undescribed Glomus species were the most abundant and frequent species recovered from the traps. Number of species decreased in each genus according to this order: Acaulospora, Glomus, Entrophospora, Gigaspora, Archaeospora, Scutellospora and Paraglomus. Spore numbers were higher in Young Secondary Forest and Pastures. Our study demonstrated that AMF have a widespread occurrence in all land use systems in Amazon and they sporulate more abundantly in trap cultures from land uses under interference than in the pristine Forest ecosystem.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000100019
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822009000100019
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.40 n.1 2009
Fonte: | info:eu-repo/semantics/openAccess