Fungos micorrízicos arbusculares em campos de murundus após a conversão para sistemas agrícolas no cerrado

Assis, Paula Camylla Ramos; Júnior, Orivaldo José Saggin; Paulino, Helder Barbosa; Stürmer, Sidney Luiz; Siqueira, José Oswaldo

doi:10.1590/s0100-06832014000600005

Cited by 23 publications

(12 citation statements)

References 24 publications

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“…The spore diversity of AMF observed in the present study was high, as in Assis et al (2014), who found 27 AMF species, of which 16 AMF species were similar to the ones identified in the present study. The obtained results are in accordance with those reported by Carvalho et al (2012), in Cerrado-field areas in Serra do Cipó, in the state of Minas Gerais, Brazil, which was considered a hotspot of AMF diversity by the authors, with 23 AMF species.…”

Section: Resultssupporting

confidence: 87%

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Arbuscular mycorrhizal fungi in soil aggregates from fields of "murundus" converted to agriculture

Carneiro

Ferreira

Souza

et al. 2015

Pesq. agropec. bras.

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-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 (8.6 g kg -1) and in microaggregates (10.1 g kg -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.Index terms: diversity of arbuscular mycorrhizal fungi, geometric mean diameter, total glomalin, total mycelium, total organic carbon.

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Section: Resultssupporting

confidence: 87%

“…The studied soil showed a high spore diversity of AMF, as observed in Assis et al (2014). It has been found that a community of AMF occupies different habitats regarding classes of aggregates and agricultural and natural systems, but there are always species present in varying general conditions.…”

Section: Resultssupporting

confidence: 58%

Arbuscular mycorrhizal fungi in soil aggregates from fields of "murundus" converted to agriculture

Carneiro

Ferreira

Souza

et al. 2015

Pesq. agropec. bras.

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“…A extração da mesofauna foi feita através do método de Berllese modificado (SOUTHWOOD, 1968) onde o solo permaneceu por um período de sete dias. A macrofauna edáfica foi coletada através da retirada de monólitos do solo de 25×25 cm na camada de 0-10 cm e posterior triagem do monólito e coleta dos organismos visíveis a olho nu (BIGNELL et al, 2010).…”

Section: Methodsunclassified

“…Em estudos com solos contaminados por mineração (BARROS et al, 2010) A ADR (Figura 1a) apontou relação significativa entre a Ma0-5 cm e os grupos Coleoptera, Hymenoptera, Chilopoda, Diptera e Isopoda. A maior quantidade de macroporos foi encontrada na MN e M22.…”

Section: Primavera) Ver Materials E Métodos Para Legenda Dos Organismunclassified

“…A densidade e a diversidade de organismos da fauna do solo, assim como a presença de determinado grupo específico em um sistema, podem ser usadas como indicadores de qualidade dos solos (BARROS et al, 2003). A fauna do solo responde aos impactos causados pelo manejo e constitui-se num bom indicador para avaliações da qualidade dos solos submetidos a diferentes sistemas de manejo (SILVA et al, 2007).…”

Section: Introductionunclassified

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Fauna Edáfica Em Áreas Com Diferentes Manejos E Tempos De Descarte De Resíduos Animais

Filho¹,

Schneider²,

Teles³

et al. 2018

RSA

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Resumo -O objetivo deste estudo foi avaliar a presença da fauna edáfica sob diferentes manejos e tempos de descarte de resíduos animais. As áreas utilizadas para o estudo foram diferenciadas pelos seguintes manejos: mata nativa, pastagem nativa sem descarte e as áreas de uso agrícola: pastagem de azevém com 5 e 17 anos de descarte de resíduos animais, milho para silagem com 9 e 22 anos de descarte, pastagem sem pastejo com 22 anos de descarte. Em cada época de coleta foram amostrados 9 pontos por área, com espaçamento de 30 metros entre cada ponto. Foram realizadas avaliações da fauna (método do Berllese e TSBF) e atributos físicos e químicos. Utilizou-se a curva de resposta principal (CRP) para observar o comportamento das áreas ao longo do tempo e análise de redundância (ADR) para os atributos que explicaram a variabilidade dos grupos da fauna edáfica. A área de pastagem com 22 anos se mostrou mais estável em relação as demais (exceto a mata nativa) quanto ao comportamento da densidade dos organismos ao longo do tempo pela CRP. Os atributos MO e Cu foram variáveis explicativas significativas na ADR para as duas metodologias considerando todas as épocas de coleta. O descarte continuado de resíduos animais no solo ocasiona mudanças no ambiente influenciando as populações da fauna edáfica.Palavras-chave -Dejeto de suíno. Cama de aves. Análise multivariada.Abstract -The goal of this study was to evaluate the presence of soil fauna under different managements and times disposal of animal waste. The areas used for the study were differentiated by the following managements: native forest, native pasture without disposal and areas of agricultural use: ryegrass pasture with 5 and 17 years of disposal of animal waste, corn for silage with 9 and 22 years of disposal pasture without grazing with 22 years of disposal. Each season were sampled 9 points per area, with spacing of 30 meters between each point. Were performed fauna assessments (method Berllese and TSBF) and physical and chemical attributes. We used the principal response curve (PRC) to observe the behavior of the areas over time and redundancy analysis (RDA) for the attributes that explain the variability of the soil fauna groups. The pasture area with 22 years was more stable compared the others (except the native forest) how the behavior of the density of organisms over time by CRP. The OM and Cu attributes were significant explanatory variables in ADR for the two techniques considering all the collecting seasons. Continued disposal of animal waste in the soil causes changes in the environment influencing the populations of soil fauna.

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Overview of the Mycorrhizal Fungi in South America

Lugo

Pagano

2019

Fungal Biology

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Fungos micorrízicos arbusculares em campos de murundus após a conversão para sistemas agrícolas no cerrado

Cited by 23 publications

References 24 publications

Arbuscular mycorrhizal fungi in soil aggregates from fields of "murundus" converted to agriculture

Arbuscular mycorrhizal fungi in soil aggregates from fields of "murundus" converted to agriculture

Fauna Edáfica Em Áreas Com Diferentes Manejos E Tempos De Descarte De Resíduos Animais

Overview of the Mycorrhizal Fungi in South America

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