Colonização micorrízica, densidade de esporos e diversidade de fungos micorrízicos arbusculares em solo de Cerrado sob plantio direto e convencional

Angelini, Guilherme Augusto Robles; Loss, Arcângelo; Pereira, Marcos Gervásio; Torres, José Luiz Rodrigues; Júnior, Orivaldo José Saggin

doi:10.5433/1679-0359.2012v33n1p115

Cited by 19 publications

(24 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Values were not significantly different. In the work of Angelini et al (2012), it was observed that in the 0 to 5 cm layer there was a significant effect when associated with crops and vegetation cover, thus it is possible to explain the highest values in the AS and layer of 5 to 10 for crop species. Table 3 shows the average of fungal CFU in relation with the time of system implantation, demonstrating that the systems that were implanted 5 years ago were superior to the value found in the newly implanted systems.…”

Section: Resultsmentioning

confidence: 99%

Microbial diversity as a soil quality indicator in agroecosystems in Brazilian Savannas

Moura¹,

Ventura²,

Vieira³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

The importance of sustainable use of natural resources, especially of soil and water, has been a subject of increasing relevance. The increase of human activity in ecosystems has great impact on the dynamics of soil organisms. The comparison between cultivated systems and native areas without anthropic interference can be used as soil quality index. Microorganisms are ideal indicators because they are very sensitive to changes and show variations in their community when subjected to stressful environments. The objective of the present study was to evaluate the quality of soil microbial abudance as an index of soil quality in agroecosystems Integrated Sustainable Agroecological Production, Agroforestry System and Isolation of springs in Brazilian Savanas. The experiment was conducted in the areas of the Vitória settlement, in the region of São Patrício Valley, Goianésia, Goiás, in an area of native "cerrado". The climate is classified as seasonal tropical (Aw), being characterized by two well defined seasons (dry and rainy), as well as with the occurrence of drought periods during the rainy season. The experimental design adopted was a 3 × 2 × 2 block factorial randomized with three replications, where factor 1 was represented by the systems used: Sustainable Integrated Agroecological Production (SIAP), Agroforestry System (AS) and springs isolation (SI), factor 2 was represented by the soil depth, 0-5 cm and 5-10 cm, and factor 3 was the installation time of the systems: 5 years and recently installed. Soil samples were collected at random in the rhizospheric soil in each plot. There was a greater number of fungal colonies in the AS system with 5 years of implantation, but did not differ with soil depth. There was a higher number of bacteria colonies in the SIAP system after 5 years. At the depth of 0 to 5 cm, the SIAP system had higher microbial abundance, but it was higher at 5 to 10 in AS system.

show abstract

Section: Resultsmentioning

confidence: 99%

Microbial diversity as a soil quality indicator in agroecosystems in Brazilian Savannas

Moura¹,

Ventura²,

Vieira³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…Vale ressaltar que o interesse em estudos sobre a biologia, diversidade e atividade dos microorganismos do solo está cada vez maior, principalmente com os que cumprem função na ciclagem de nutrientes e/ou produtividade dos ecossistemas, como por exemplo, as micorrizas arbusculares (ANGELINI et al, 2012). COSTA, N.L.…”

Section: Introductionunclassified

Response of Cassia rotundifolia to arbuscular mycorrhizal inoculation

Costa¹,

Paulino²,

Paulino³

et al. 2015

Pubvet

View full text Add to dashboard Cite

ResumoAvaliou-se o efeito da inoculação de micorrizas arbusculares (MA) -Glomus fasciculatum, G. macrocarpum, G. etunicatum, Acaulospora muricata e Scutellospora heterogama, sobre o crescimento e composição química de Cassia rotundifolia CIAT-7792. Entre os fungos avaliados, os mais eficientes na produção de matéria seca (MS) foram A. muricata e S. heterogama, os quais proporcionaram incrementos de 162 e 142%, respectivamente, em relação ao tratamento sem inoculação. As taxas de colonização radicular foram afetadas

show abstract

“…This depth was chosen based on the methodology proposed by other authors and due to the highest occurrence of spores in this soil layer Angelini et al, 2012).…”

Section: Area Of Study and Soil Collectionmentioning

confidence: 99%

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

2017

View full text Add to dashboard Cite

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.

show abstract

Colonização micorrízica, densidade de esporos e diversidade de fungos micorrízicos arbusculares em solo de Cerrado sob plantio direto e convencional

Cited by 19 publications

References 24 publications

Microbial diversity as a soil quality indicator in agroecosystems in Brazilian Savannas

Microbial diversity as a soil quality indicator in agroecosystems in Brazilian Savannas

Response of Cassia rotundifolia to arbuscular mycorrhizal inoculation

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

Contact Info

Product

Resources

About