Interactions among functional groups in the cycling of, carbon, nitrogen and phosphorus in the rhizosphere of three successional species of tropical woody trees

Matsumoto, Leopoldo Sussumu; Martines, Alexandre Martin; Avanzi, Marcos; Albino, Ulisses Brigatto; Brasil, Carlos; Saridakis, Dennis Panayotis; Rampazo, L.G.L.; Zangaro, Waldemar; Andrade, Galdino

doi:10.1016/j.apsoil.2004.06.008

Cited by 27 publications

(18 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Segundo esses autores, um isolado pode promover o crescimento de uma espécie e ser ineficaz em outras. Têm sido relatadas diferenças na quantidade e qualidade dos exsudados radiculares de diferentes espécies vegetais, bem como de cultivares e genótipos da mesma espécie em razão da especificidade tanto dos rizóbios quanto dos FMAs (SHISHIDO e CHANWAY, 1999;FRIONI et al, 1999;MATSUMOTO et al, 2005;DRUEGE et al, 2006).…”

Section: Discussionunclassified

Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Dias¹,

Pereira²,

MegumiKasuya

et al. 2012

Rev. Árvore

View full text Add to dashboard Cite

RESUMO -O objetivo deste estudo foi avaliar o efeito da inoculação dos fungos micorrízicos arbusculares (FMAs) e rizóbio no enraizamento, crescimento e nutrição de mudas de angico-vermelho (Anadenanthera macrocarpa (Benth) Brenan) propagadas via miniestaquia. Foram utilizadas seis progênies, das quais foram confeccionadas miniestacas com um par de folhas inteiras, bem como tubetes de 55 cm³ contendo substrato comercial Bioplant ® . Foram testados quatro tratamentos: 8 kg m -3 de superfosfato simples (SS) misturados ao substrato; 4 kg m -3 de SS misturados ao substrato; 4 kg m -3 de SS misturados ao substrato e adição de suspensão contendo rizóbios; e 4 kg m -3 de SS e adição de suspensão contendo rizóbios e 5 g de solo contendo esporos de FMAs. Não houve interação entre os tratamentos para percentagem de sobrevivência das miniestacas e percentagem de miniestacas com raízes observadas na extremidade inferior do tubete, na saída da casa de vegetação (30 dias) e da casa de sombra (40 dias), provavelmente em função do sistema radicular ainda estar em formação. Houve diferenças entre as progênies para percentagem de sobrevivência das miniestacas, percentagem de miniestacas com raízes observadas na extremidade inferior do tubete, altura, diâmetro de colo e massa seca da parte aérea. As avaliações das características de crescimento das miniestacas enraizadas, principalmente com relação à sobrevivência a pleno sol (140 dias), evidenciam a eficiência dos rizóbios e FMAs na produção de mudas desta espécie. Conclui-se que a associação simbiótica com rizóbio e/ou FMA favorece a produção de mudas de A. macrocarpa via miniestaquia.Palavras-chave: Anadenanthera macrocarpa (Benth) Brenan, Propagação vegetativa, Miniestaquia, Propagação de plantas, FMA, FBN. ARBUSCULAR MYCORRHIZAE AND RHIZOBIUM IN ROOTING AND NUTRITION OF ANGICO-VERMELHO SEEDLINGS

show abstract

Section: Discussionunclassified

Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Dias¹,

Pereira²,

MegumiKasuya

et al. 2012

Rev. Árvore

View full text Add to dashboard Cite

show abstract

“…In this work, a saline solution (0.85% NaCl) was chosen in combination with shaking, in order to detach bacteria from the soil particles. This saline solution has been used in recent reports with different types of soil samples, among which those collected from the rice rhizosphere (Raimam et al, 2007), from extreme Egyptian environments (Mahmoud, 2006), from soil contaminated with pollutants such as diesel oil (Ueno et al, 2007) and from the rhizosphere of tropical woody trees (Matsumoto et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Nuclease-producing bacteria in soil cultivated with herbicide resistant transgenic white poplars

2007

View full text Add to dashboard Cite

This study was carried out using soil cultivated, under greenhouse conditions, with transgenic white poplars expressing the bar gene for tolerance to the Basta ® herbicide. The occurrence of extracellular nucleolytic activity was monitored in soil samples collected at four different times over a 26-month period. The fraction of nuclease producing bacteria (NPB) ranged from 62.5 to 100% of the total culturable bacterial population. The DNA-methyl green plate assay allowed to distinguish five groups of bacteria showing increasing levels of extracellular DNase activity. The NPB isolates were classified by 16S rDNA sequence analysis as members of the Bacillus, Brevibacillus, Microbacterium, Pseudomonas and Stenotrophomonas genera. For each genus, NPB isolates were cultured in liquid medium and the nucleolytic activity during different growth phases was monitored. Production of extracellular nucleases was observed only during the mid-exponential growth phase of the Brevibacillus, Microbacterium and Stenotrophomonas isolates, while no activity was evidenced for isolates classified within the Bacillus and Pseudomonas genera.

show abstract

“…Such capacity is defined as resilience which means a biological buffering against disturbances in an ecosystem. We may usually state that the functional redundancy is higher in less degraded soils (Harris, 2003), but the composition of the plant community may favor the prevalence or cause suppression of certain microbial functional groups in soil (Matsumoto et al, 2005).…”

Section: Microbiological and Biochemical Indicatorsmentioning

confidence: 99%

Soil health: looking for suitable indicators. What should be considered to assess the effects of use and management on soil health?

Cardoso¹,

Vasconcellos²,

Bini³

et al. 2013

Sci. agric. (Piracicaba, Braz.)

372

204

View full text Add to dashboard Cite

Soil Health refers to the ecological equilibrium and the functionality of a soil and its capacity to maintain a well balanced ecosystem with high biodiversity above and below surface, and productivity. To understand and use soil health as a tool for sustainability, physical, chemical, and biological properties must be employed to verify which respond to the soil use and management within a desired timescale. Attributes with a rapid response to natural or anthropogenic actions are considered good indicators of soil health. Among the physical indicators, soil texture, aggregation, moisture, porosity, and bulk density have been used, while among chemical indicators total C and N, mineral nutrients, organic matter, cation exchange capacity, among others are well established. However, most of them generally have a slow response, when compared to the biological ones, such as microbial biomass C and N, biodiversity, soil enzymes, soil respiration, etc., in addition to macro and mesofauna. Thus, a systemic approach based on different kinds of indicators (physical, chemical and biological) in assessing soil health would be safer than using only one kind of attribute. Many human activities have caused desertification, loss of biodiversity, disruption of aggregates, loss of organic matter and nutrients, among others. Today, it is imperious to maintain soil health and productivity with increasing emphasis on reforestation and recuperation of degraded areas through the use of organic amendments, reintroduction of plants, soil fauna and microorganisms. This review focused on an integrative view on indicators of soil health to be used as tools for prediction of sustainability in production systems.

show abstract

Interactions among functional groups in the cycling of, carbon, nitrogen and phosphorus in the rhizosphere of three successional species of tropical woody trees

Cited by 27 publications

References 19 publications

Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Micorriza arbuscular e rizóbios no enraizamento e nutrição de mudas de angico-vermelho

Nuclease-producing bacteria in soil cultivated with herbicide resistant transgenic white poplars

Soil health: looking for suitable indicators. What should be considered to assess the effects of use and management on soil health?

Contact Info

Product

Resources

About