The effects of arbuscular mycorrhizal hyphal networks on soil aggregations of purple soil in southwest China

Peng, Sili; Guo, Tao; Liu, Gangcai

doi:10.1016/j.soilbio.2012.10.026

Cited by 100 publications

(53 citation statements)

References 41 publications

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“…The results of the present study are indicative that the used management promoted improvements in soil structure, and, consequently, in soil quality, which corroborates other studies (Bedini et al, 2009;Peng et al, 2013). The positive and significant correlation between GMD and the content of total glomalin (r = 0.84**), TOC (r = 0.76**), and TEM (r = 0.51*) suggest that these factors interact to stable aggregate formation in water, which is essential for environments less susceptible to wide fluctuations in temperature and humidity and, therefore, less stressful to plants and mycorrhizal fungi.…”

Section: Resultssupporting

confidence: 92%

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: 92%

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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“…While parameters traditionally used to measure AMF (root colonization or length of hyphae) are complex and time-consuming, some of the glomalin fractions, such as the glomalin-related soil proteins (GRSPs), are easily measured. Because studies found a positive correlation between GRSPs and parameters directly related to AMF (Bedini et al, 2007;Peng et al, 2013), GRSP might be used as a simple indicator of AMF. However, many studies found no relationship between the content of this protein and the AM fungal parameters (Lovelock et al, 2004;Lutgen et al, 2003;Rillig et al, 2001a;Wright and Upadhyaya, 1999), which may call into question its ability to indicate AMF abundance.…”

Section: Introductionmentioning

confidence: 99%

Arbuscular mycorrhizal fungal activity responses to winter cover crops in a sunflower and maize cropping system

García-González

Quemada

Gabriel

et al. 2016

Applied Soil Ecology

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“…These fungi enhance plant resistance to water stress, high temperatures, conditions of toxicity and acidity of soil and pathogens (Smith & Read, 2008), in addition to soil stabilization in the form of aggregates (Daynes et al, 2013, Peng et al, 2013.…”

Section: Introductionmentioning

confidence: 99%

Inoculum production of arbuscular mycorrhizal fungi native to soils under different forest covers

2017

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The low natural fertility of Brazilian soils requires the use of inoculants that facilitate the absorption of nutrients by plants. Arbuscular mycorrhizal fungi such as obligatory biotrophics of active roots perform this function, but access to this resource is limited by the difficulty in producing inoculants. The objective of this study was to investigate the production of AMF inoculants native of soils under different forest covers in Vitória da Conquista, BA, by means of spore quantification, colonization rate and species identification. For this purpose, soils were collected from sites under Mata Nativa (native forest) and plantations of Madeira Nova (Pterogyne nitens) and Eucalyptus, placed into separate 500 mL disposable cups with seeds of Brachiaria sp. and cultivated for five months. Spores were quantified and the AMF species identified in the control soil (without brachiaria) and in the cups cultivated with brachiaria at each month. From the first month, the colonization rate of brachiaria roots was evaluated. The inoculants produced showed differences in the number of spores and species, in the AMF species identified, and in the root colonization rate as a function of the forest cover. Thus, considering the increase in the number of spores, species and colonization over time, the inoculant produced from the soil under native forest was more promising for utilization. Produção de inóculos de fungos micorrízicos arbusculares nativos de solos sob diferentes coberturas florestaisA baixa fertilidade natural dos solos brasileiros requer o uso de inoculantes que facilitem a absorção de nutrientes pelas plantas. Os fungos micorrízicos arbusculares como biotróficos obrigatórios de raízes ativas desempenham esta função, porém o acesso a este recurso é limitado pela dificuldade na produção de inoculantes. Com isso, o objetivo deste trabalho foi avaliar a produção de inoculantes de FMAs nativos de solos sob diferentes coberturas florestais em Vitória da Conquista -BA, através da quantificação de esporos, taxa de colonização e identificação de espécies. Para isso, foram coletados solos nas coberturas florestais de Mata Nativa e em plantios de Madeira Nova e Eucalipto, colocados separadamente em vasos com braquiária e cultivados por cinco meses. No solo testemunha e a cada mês foram quantificados os esporos e identificadas as espécies de FMAs e, a partir do primeiro mês, avaliou-se a taxa de colonização das raízes da braquiária. Os inoculantes produzidos apresentaram diferenças no número de esporos e espécies, nas espécies de FMAs identificadas e na taxa de colonização das raízes, dependendo da cobertura florestal. Assim, considerando o aumento no número de esporos, espécies e colonização ao longo do tempo, o inoculante produzido a partir do solo da Mata Nativa apresentou-se mais promissor para o uso.Palavras-chave: simbionte; vaso armadilha; recuperação florestal. 198Renata Soares dos Santos et al.

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The effects of arbuscular mycorrhizal hyphal networks on soil aggregations of purple soil in southwest China

Cited by 100 publications

References 41 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

Arbuscular mycorrhizal fungal activity responses to winter cover crops in a sunflower and maize cropping system

Inoculum production of arbuscular mycorrhizal fungi native to soils under different forest covers

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