Soil Bacterial Community Structure Changes Following Disturbance of the Overlying Plant Community

Kang, Sanghoon; Mills, Aaron L.

doi:10.1097/01.ss.0000112014.97541.ba

Cited by 35 publications

(28 citation statements)

References 52 publications

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“…Only at the FIR plot, where the aboveground layer was completely destroyed, changes in some soil microbial indicators were observed. Nevertheless, the changed ecological conditions on the disturbed plots will be reflected also in the composition and production of the herb layer because of different trajectories of the secondary succession and, consequently, in the abundance and composition of soil microorganisms (Kang & Mills 2004).…”

Section: Soil and Water Res 3 2008 (Special Issue 1): S74-s80 Originmentioning

confidence: 99%

The impact of windthrow and fire disturbances on selected soil properties in the Tatra National Park

Gömöryová¹,

Střelcová²,

Škvarenina³

et al. 2008

Soil & Water Res.

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: In November 2004, forest stands in the Tatra National Park (TANAP) were affected by windthrow and in July 2005, the wildfire broke out on a part of the affected area. The objective of this study is to evaluate the impact of the windthrow and fire disturbances on soil microbial activity. Basal and potential soil respiration, N-mineralisation, catalase activity, soil microbial biomass, and cellulase activity were measured in soil samples taken from the A-horizon (depth of 0–10 cm) along 100 m transects established on 4 plots (reference site, burnt, non-extracted, and extracted sites) in October 2006. Some soil microbial characteristics exhibited a high spatial variability, especially microbial biomass and N-mineralisation. Significant differences in soil microbial characteristics (especially basal soil respiration and catalase activity) between plots were found. Generally, the highest microbial activity was revealed on the plot affected by fire. Soil microbial activity was similar on the extracted and non-extracted sites.

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Section: Soil and Water Res 3 2008 (Special Issue 1): S74-s80 Originmentioning

confidence: 99%

The impact of windthrow and fire disturbances on selected soil properties in the Tatra National Park

Gömöryová¹,

Střelcová²,

Škvarenina³

et al. 2008

Soil & Water Res.

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“…Rhizosphere is defined as a zone of most intense bacterial activity around the roots of plant (Hiltner, 1904). However, for the sake of practical investigation, the rhizosphere is most often defined as the soil adhering to plant roots when they are rigorously shaken, throughout which the rhizosphere effect must be observed to some extent (Kang and Mills, 2004). A survey of the literature exposes an extensive range of compounds exuding from intact and healthy roots; these include sugars, amino acids, peptides, enzymes, communication includes symbiotic associations with beneficial microbes, such as mycorrhizae, rhizobia and plant growth promoting rhizobacteria (PGPR).…”

Section: Introductionmentioning

confidence: 99%

Nature and role of root exudates: Efficacy in bioremediation

Shukla¹,

Sharma²,

Singh³

et al. 2013

Afr. J. Biotechnol.

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“…Destaca-se que no momento da amostragem todas as plantas apresentavam-se no mesmo estádio fenológico, o que elimina variações decorrentes deste fator. As diferenças existentes entre as estruturas das comunidades de bactérias do solo e da rizosfera ocorreram por causa da diferenciação na quantidade e composição dos exsudatos radiculares, determinados por diferenças genotípicas entre as plantas (Kang & Mills, 2004;Medeiros et al, 2006;Compant et al, 2010). Essas diferenças certamente resultam no metabolismo diferencial das variedades, causando alterações na composição e quantidade de material liberado nas raízes.…”

Section: Resultsunclassified

“…Esse fato tem dado suporte ao desenvolvimento de trabalhos sobre a diversidade microbiana da rizosfera (Cocking, 2003;Kang & Mills, 2004;Carvalho et al, 2010;Philippot et al, 2013).…”

Section: Introductionunclassified

Composição diferencial das comunidades bacterianas na rizosfera de variedas de cana-de-açúcar

Costa

Dias

Durrer

et al. 2014

Rev. Bras. Ciênc. Solo

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RESUMOA cultura da cana-de-açúcar é de extrema importância no cenário agrícola nacional. No entanto, pouco se sabe sobre a estruturação das comunidades microbianas associadas aos solos e às rizosferas de tais plantas. O objetivo deste trabalho foi avaliar a estrutura e diversidade das comunidades de bactérias associadas ao solo e à rizosfera de seis variedades de cana-de-açúcar cultivadas no Estado de São Paulo (Brasil). As análises foram realizadas com base em métodos independentes de cultivo, em que a técnica de PCR-DGGE revelou alterações na rizosfera para os grupos de bactérias totais e também para os grupos de Alphaproteobacteria e Betaproteobacteria. Após essa análise, quatro amostras (três de rizosfera e uma de solo) foram usadas para o sequenciamento da região V6 do gene 16S DNAr na plataforma Ion Torrent™. Essa análise gerou um total de 95.812 sequências, dentro das quais houve a predominância das afiliadas aos filos Actinobacteria, Proteobacteria e Acidobateria. Os resultados revelaram que as comunidades bacterianas na rizosfera são distintas daquelas encontradas no solo. Foi possível ainda observar efeito diferencial de plantas das variedades. Alguns grupos bacterianos apresentaram menor frequência na rizosfera (Acidobacteria), enquanto outros se mostraram fortemente estimulados pela presença das raízes, comumente para todas as variedades (Betaproteobacteria, Nitrospora e Chloroflexi), ou em respostas variedade-específicas (Bacilli e Sphingobacteria).Termos de indexação: métodos independentes de cultivo, genes ribossomais, diversidade bacteriana, sequenciamento de DNA.(1) Trabalho extraído da Dissertação de Mestrado do primeiro autor. Recebido em 20 de fevereiro de 2014 e aprovado em 5 de setembro de 2014.

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Soil Bacterial Community Structure Changes Following Disturbance of the Overlying Plant Community

Cited by 35 publications

References 52 publications

The impact of windthrow and fire disturbances on selected soil properties in the Tatra National Park

The impact of windthrow and fire disturbances on selected soil properties in the Tatra National Park

Nature and role of root exudates: Efficacy in bioremediation

Composição diferencial das comunidades bacterianas na rizosfera de variedas de cana-de-açúcar

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