Crescimento e nodulação de Acacia mangium, Enterolobium contortisiliquum e Sesbania virgata em solo contaminado com metais pesados

Trannin, Isabel Cristina de Barros; Moreira, F. M. S.; Siqueira, J. O.

doi:10.1590/s0100-06832001000300024

Cited by 15 publications

(8 citation statements)

References 18 publications

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“…(27), the cultivation of three woody plant species ( Acacia mangium , Enterolobium contortisiliquum and Sesbania virgata ) in heavy metal contaminated soil had a negative effect on the growth, dry weight of the aerial parts, height, and stem diameter of these plants. These authors observed a phytotoxic effect of the metals on the three species for soils with 15% contamination.…”

Section: Resultsmentioning

confidence: 99%

Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Gattai¹,

Pereira²,

Costa³

et al. 2011

Braz. J. Microbiol.

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The goals of this study were to evaluate the microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants (Caesalpinia ferrea, Mimosa tenuiflora and Erythrina velutina) in lead contaminated soil from the semi-arid region of northeastern of Brazil (Belo Jardim, Pernambuco). Dilutions were prepared by adding lead contaminated soil (270 mg Kg-1) to uncontaminated soil (37 mg Pb Kg soil-1) in the proportions of 7.5%, 15%, and 30% (v:v). The increase of lead contamination in the soil negatively influenced the amount of carbon in the microbial biomass of the samples from both the dry and rainy seasons and the metabolic quotient only differed between the collection seasons in the 30% contaminated soil. The average value of the acid phosphatase activity in the dry season was 2.3 times higher than observed during the rainy season. There was no significant difference in the number of glomerospores observed between soils and periods studied. The most probable number of infective propagules was reduced for both seasons due to the excess lead in soil. The mycorrhizal colonization rate was reduced for the three plant species assayed. The inoculation with arbuscular mycorrhizal fungi benefited the growth of Erythrina velutina in lead contaminated soil.

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Section: Resultsmentioning

confidence: 99%

Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Gattai¹,

Pereira²,

Costa³

et al. 2011

Braz. J. Microbiol.

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“…It is well known that plants using Nitrogen from symbiosis with rhizobia are less tolerant to various stress than when they utilize combined Nitrogen (Trannin et al 2001b). This was the case of all A. amazonense strains and isolates, and A. brasilense strain 1R, however the other isolates/strains behaved in an opposite way.…”

Section: Discussionmentioning

confidence: 90%

Associative diazotrophic bacteria in grass roots and soils from heavy metal contaminated sites

Moreira

Lange

Filho

et al. 2008

An. Acad. Bras. Ciênc.

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This work aimed to evaluate density of associative diazotrophic bacteria populations in soil and grass root samples from heavy metal contaminated sites, and to characterize isolates from these populations, both, phenotypically (Zinc, Cadmium and NaCl tolerance in vitro, and protein profiles) and genotypically (16S rDNA sequencing), as compared to type strains of known diazotrophic species. Densities were evaluated by using NFb, Fam and JNFb media, commonly used for enrichment cultures of diazotrophic bacteria. Bacterial densities found in soil and grass root samples from contaminated sites were similar to those reported for agricultural soils. Azospirillum spp. isolates from contaminated sites and type strains from non-contaminated sites varied substantially in their in vitro tolerance to Zn +2 and Cd +2 , being Cd +2 more toxic than Zn +2 . Among the most tolerant isolates (UFLA 1S, 1R, S181, S34 and S22), some (1R, S34 and S22) were more tolerant to heavy metals than rhizobia from tropical and temperate soils. The majority of the isolates tolerant to heavy metals were also tolerant to salt stress as indicated by their ability to grow in solid medium supplemented with 30 g L -1 NaCl. Five isolates exhibited high dissimilarity in protein profiles, and the 16S rDNA sequence analysis of two of them revealed new sequences for Azospirillum.

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“…According to the same author, its wood is appropriate for manufacturing whole-trunk boats and canoes, toys, plywood and furniture frames. Additionally, it presents some tolerance to heavy metals, showing promise for research aimed at the revegetation of soils that contain excessive levels of these elements (Andrade, 2005;Trannin et al, 2001). Further, it also presents rapid initial growth (Araújo & Sobrinho, 2011).…”

Section: Introductionmentioning

confidence: 99%

Performance of tamboril Seedlings Produced in Three Different Tube Volumes

et al. 2018

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The objective of this study was to evaluate the performance of tamboril (Enterolobium contortisiliquum (Vell.) Morong) seedlings and define their time in the nursery. Two experiments were carried out; in the first, the seedlings remained in the nursery for 120 days, and height, diameter, root deformation %, shoot dry mass, root system and leaf number were evaluated. In the second experiment, four seedlings of each repetition were transplanted into 35 x 40 cm bags and then assessed for height, diameter and dry weight of the shoot and root system. Data were submitted to analysis of variance (α = 0.05), Tukey test at 5% (qualitative factor) and sequential regression (quantitative factors). The seedlings produced in higher-tube volumes achieved conditions for planting at 90 days, while those produced in the lowest volume achieved the same conditions only after 120 days. Therefore, 180 cm 3 tubes and a 90-day stay in the nursery are recommended.

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Crescimento e nodulação de Acacia mangium, Enterolobium contortisiliquum e Sesbania virgata em solo contaminado com metais pesados

Cited by 15 publications

References 18 publications

Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Microbial activity, arbuscular mycorrhizal fungi and inoculation of woody plants in lead contaminated soil

Associative diazotrophic bacteria in grass roots and soils from heavy metal contaminated sites

Performance of tamboril Seedlings Produced in Three Different Tube Volumes

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