Effect of growing Brachiria brizantha on phytoremediation of picloram under different pH environments

Braga, Renan Rodrigues; Santos, José Barbosa dos; Zanúncio, José Cola; Bibiano, Camila Silva; Ferreira, Evander Alves; Oliveira, Maxwel C.; Silva, Daniel Valadão; Serrão, José Éduardo

doi:10.1016/j.ecoleng.2016.05.050

Cited by 18 publications

(8 citation statements)

References 28 publications

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“…Some studies corroborate the present study results when they found picloram adsorption in very acidic systems and non-adsorption when in pH higher than 3 (Grover et al, 1971; 8 Biggar et al, 1978;Celis et al, 2002;Braga et al, 2016). As for Marco-Brown et al (2014), they have observed considerable adsorption of picloram on clay material in medium with pH higher than 3.…”

Section: Picloram + 24-d Leaching Testsupporting

confidence: 80%

Biosolids in Leaching of Herbicides Mimicking Auxin in Tropical Soils

et al. 2018

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-Biosolids are residues from the treatment of urban fluids used as a source of nutrients for agricultural and forestry crops. The organic matter contained in this residue and its chemical characteristics may interfere with the behavior of herbicides in the soil. The objective of this study was to evaluate the influence of biosolids on the potential for leaching herbicides mimicking auxin. Two simultaneous experiments were performed: a leaching test of picloram + 2.4-D in soil column with addition of thermally treated biosolids or solarized biosolids and another one to evaluate the effect of leachate application from the leaching tests under inert material. Each type of biosolid was incorporated in sandy soil in the proportions of 0%, 50%, 100% and 150% of the maximum recommended dose for subsurface fertilization for eucalyptus. The soil was conditioned in PVC columns and the herbicide columns based on picloram + 2.4-D (Turuna® Commercial Formulation), corresponding to 240 g L -1 of 2.4-D + 64 g L -1 of picloram at a dose of 3.5 L ha -1 of the commercial product. The columns were submitted to rain simulation and the resulting leachate was collected, followed by its application in sand-filled pots. The Cucumis sativus was sown along the profile of the soil columns and in the pots. The incorporation of the biosolid, independently of the type and dose tested did not interfere in the leaching potential of picloram + 2.4-D. Symptoms of intoxication were observed along all soil columns and pots. Therefore this residue is not very effective for the resolution of environmental problems caused by the leaching of auxin-mimicking herbicides in the soil. Keywords

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Section: Picloram + 24-d Leaching Testsupporting

confidence: 80%

Biosolids in Leaching of Herbicides Mimicking Auxin in Tropical Soils

et al. 2018

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“…In soils at 40 DAA, in the first evaluation at 20 DAS, the plants showed moderate intoxication for 2,4-D + picloram residual and mild intoxication for fluroxypyr, triclopyr, and aminocyclopyrachlor poison it (Christoffoleti et al 2015, Braga et al 2016. In addition, Santos et al (2006) observed effect of triclopyr residual in the soil at 10 DAA, but no plant intoxication was observed for the treatments from 40 DAA.…”

Section: Cucumber Responsesmentioning

confidence: 99%

“…For development, the plants may simply reduce the absorption of the herbicide and this can remain in the soil. On the other hand, the decontamination mechanism may be related to increased plant metabolism and thus, may increase the rate of degradation of the herbicidal molecule (Madalão et al 2012, Braga et al 2016.…”

Section: Lablab Bean Responsesmentioning

confidence: 99%

“…Auxinic or auxin-mimetic herbicides represent the oldest and possibly the most widely used herbicide to control weeds in pastures (MacDonald et al 2013). However, some of these herbicides have residual activity in the soil and can become undesirable, because they can result in damage to succeeding crops, contamination of water sources by leaching, and toxicity to non-target organism (Braga et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Persistence of auxinic herbicides applied on pasture and toxicity for succeeding crops

Anésio

Santos

Silveira

et al. 2018

An. Acad. Bras. Ciênc.

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The aim of this work was to determine the persistence of auxinic herbicides applied on tropical pasture and toxicity for succeeding crops. The herbicides were applied in an area of dystrophic red‒yellow latosol with pasture infested of weeds. At 40, 80, and 280 days after application of herbicide, the soil samples were collected at depths of 0 to 20 cm. Soil with residues of 2,4-D, 2,4-D + picloram, triclopyr, and a soil without herbicide application were analyzed with six replicates. Seven crops were cultivated in these soils: cucumber (Cucumis sativus L.), velvet bean [Mucuna pruriens (L.) DC.], pigeon pea [Cajanus cajan (L.) Millsp.], alfalfa (Medicago sativa L.), lablab bean [Lablab purpureus (L.) Sweet], corn (Zea mays L.), and sorghum [Sorghum bicolor (L.) Moench]. The plants of cucumber, pigeon pea, and alfalfa were the most susceptible to the auxinic herbicide residues. However, the lablab bean was the only one among the dicot evaluated that showed tolerance to the 2,4-D + picloram residual when cultivated in soils at 280 days after application of herbicide. Corn and sorghum showed lower chlorophyll content in soils with 2,4-D + picloram residual up to 80 days after application of herbicide.

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“…Currently, many studies in this area have been carried out using whole plants, which have a limited lifespan and must be replaced and re-established after each experiment. It is also difficult to evaluate the effects of various factors such as light, temperature, soil pH, and rhizosphere microorganisms in different batch experiments [21,22]. Hairy roots, which possess all the morphological and physiological characteristics of normal roots and allow indefinite propagation, have been proven as a convenient experimental tool for investigating the interactions between plant cells and metal ions [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Comparative Transcriptome Analysis of the Molecular Mechanism of the Hairy Roots of Brassica campestris L. in Response to Cadmium Stress

Sun

Cao

et al. 2019

IJMS

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Brassica campestris L., a hyperaccumulator of cadmium (Cd), is considered a candidate plant for efficient phytoremediation. The hairy roots of Brassica campestris L are chosen here as a model plant system to investigate the response mechanism of Brassica campestris L. to Cd stress. High-throughput sequencing technology is used to identify genes related to Cd tolerance. A total of 2394 differentially expressed genes (DEGs) are identified by RNA-Seq analysis, among which 1564 genes are up-regulated, and 830 genes are down-regulated. Data from the gene ontology (GO) analysis indicate that DEGs are mainly involved in metabolic processes. Glutathione metabolism, in which glutathione synthetase and glutathione S-transferase are closely related to Cd stress, is identified in the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. A Western blot shows that glutathione synthetase and glutathione S-transferase are involved in Cd tolerance. These results provide a preliminary understanding of the Cd tolerance mechanism of Brassica campestris L. and are, hence, of particular importance to the future development of an efficient phytoremediation process based on hairy root cultures, genetic modification, and the subsequent regeneration of the whole plant.

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Effect of growing Brachiria brizantha on phytoremediation of picloram under different pH environments

Cited by 18 publications

References 28 publications

Biosolids in Leaching of Herbicides Mimicking Auxin in Tropical Soils

Biosolids in Leaching of Herbicides Mimicking Auxin in Tropical Soils

Persistence of auxinic herbicides applied on pasture and toxicity for succeeding crops

Comparative Transcriptome Analysis of the Molecular Mechanism of the Hairy Roots of Brassica campestris L. in Response to Cadmium Stress

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