Data/hora: 25/06/2024 15:12:58

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 26/05/2015
Data da última atualização: | 25/05/2017
Autoria: | CARNEIRO, M. A. C.; FERREIRA, D. A.; SOUZA, E. D. de; PAULINO, H. B.; SAGGIN JUNIOR, O. J.; SIQUEIRA, J. O.
Afiliação: | MARCO AURÉLIO CARBONE CARNEIRO, UFLA; DOROTÉIA ALVES FERREIRA, USP; EDICARLOS DAMACENA DE SOUZA, UFMT; HELDER BARBOSA PAULINO, UFGO; ORIVALDO JOSE SAGGIN JUNIOR, CNPAB; JOSÉ OSWALDO SIQUEIRA, Instituto Tecnológico Vale.
Título: | Arbuscular mycorrhizal fungi in soil aggregates from fields of "murundus" converted to agriculture.
Ano de publicação: | 2015
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 4, p. 313-321, abr. 2015.
Idioma: | Português
Notas: | Título em português: Fungos micorrízicos arbusculares em agregados do solo de campos de murundus convertidos em agricultura.
Conteúdo: | The objective of this work was to evaluate the spore density and diversity of arbuscular mycorrhizal fungi (AMF) in soil aggregates from fields of ?murundus? (large mounds of soil) in areas converted and not converted to agriculture. The experiment was conducted in a completely randomized design with five replicates, in a 5x3 factorial arrangement: five areas and three aggregate classes (macro?, meso?, and microaggregates). The evaluated variables were: spore density and diversity of AMF, total glomalin, total organic carbon (TOC), total extraradical mycelium (TEM), and geometric mean diameter (GMD) of soil aggregates. A total of 21 AMF species was identified. Spore density varied from 29 to 606 spores per 50 mL of soil and was higher in microaggregates and in the area with 6 years of conversion to agriculture. Total glomalin was higher between murundus in all studied aggregate classes. The area with 6 years showed lower concentration of TOC in macroaggregates (8.6gkg ?1) and in microaggregates (10.1gkg?1). TEM was greater at the top of the murundus in all aggregate classes. GMD increased with the conversion time to agriculture. The density and diversity of arbuscular mycorrhizal spores change with the conversion of fields of murundus into agriculture.
Palavras-Chave: | Diâmetro médio geométrico; Diversidade de fungos micorrízicos; Geometric mean diameter; Glomalina total; Total glomalin; Total mycelium; Total organic carbon.
Thesaurus Nal: | Mycorrhizal fungi.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/124578/1/Arbuscular-mycorrhizal-fungi.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (57752-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS