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[PMID]:28386840
[Au] Autor:Carvalho VV; Paulino MF; Detmann E; Chizzotti ML; Martins LS; Silva AG; Lopes SA; Moura FH
[Ad] Endereço:Animal Science Department, Universidade Federal de Viçosa, Viçosa, MG, 36570-000, Brazil. victor.carvalho@ufv.br.
[Ti] Título:Effects of supplements containing different additives on nutritional and productive performance of beef cattle grazing tropical grass.
[So] Source:Trop Anim Health Prod;49(5):983-988, 2017 Jun.
[Is] ISSN:1573-7438
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A grazing trial was carried out to evaluate the inclusion of three feed additives in supplements (crude protein, CP 230 g/kg dry matter, DM) on the performance, voluntary intake, and digestibility of beef heifers grazing Brachiaria decumbens (CP 81 and neutral detergent fiber, NDF 615 g/kg DM). Thirty-five Nellore heifers (21 months of age and 383 ± 6.29 kg of body weight, BW) were used in a completely randomized design. The treatments were as follows: no supplement (control); supplement fed at 1 kg/animal/day without additives (S); supplement with monensin (S + M); supplement with yeast culture (S + YC); and supplement with enzyme complex (S + EC). All of the supplemented heifers had greater (P < 0.1) average daily gain (∼0.186 kg/day) compared to the control treatment (0.014 kg/day). Average daily gain and final BW were similar (P > 0.1) among supplemented heifers. Monensin inclusion in the supplement decreased (P < 0.1) forage DM (expressed as g/kg BW) and NDF intake (expressed as kg/day and as g/kg BW). All of the feed additive inclusions decreased (P < 0.1) NDF digestibility. In conclusion, the heifers' performance was improved by concentrate supplementation. However, the inclusion of additives did not enhance this effect.
[Mh] Termos MeSH primário: Bovinos/fisiologia
Digestão/efeitos dos fármacos
Monensin/metabolismo
Fermento Seco/metabolismo
[Mh] Termos MeSH secundário: Ração Animal/análise
Fenômenos Fisiológicos da Nutrição Animal
Animais
Brachiaria
Bovinos/crescimento & desenvolvimento
Dieta/veterinária
Fibras na Dieta/metabolismo
Feminino
Herbivoria
Monensin/administração & dosagem
Nitrogênio/metabolismo
Distribuição Aleatória
Fermento Seco/administração & dosagem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Dietary Fiber); 906O0YJ6ZP (Monensin); N762921K75 (Nitrogen)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170408
[St] Status:MEDLINE
[do] DOI:10.1007/s11250-017-1286-8


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[PMID]:28341381
[Au] Autor:Sahoo D; Ummalyma SB; Okram AK; Sukumaran RK; George E; Pandey A
[Ad] Endereço:Institute of Bioresources and Sustainable Development (IBSD), National Institute Under Department of Biotechnology Govt. of India, Takyelpat, Imphal 795001, Manipur, India. Electronic address: dbsahoo@hotmail.com.
[Ti] Título:Potential of Brachiaria mutica (Para grass) for bioethanol production from Loktak Lake.
[So] Source:Bioresour Technol;242:133-138, 2017 Oct.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of present study was to evaluate feasibility of using the Para grass as feedstock for production of bioethanol. Process involved the pretreatment with dilute acid or alkali and followed by enzymatic saccharification with commercial cellulase. Maximum sugar release of 696mg/g was obtained from 10% biomass loading and 0.5% w/v of alkali whereas in the case of acid pretreatment maximum sugar of 660mg/g was obtained from 20% biomass loading and 2% w/v acid loading. Results showed that Para grass utilization as a biorefinery feedstock can be a potential strategy to address the sustainable utilization of this invasive grass thereby keeping its population in check in the Loktak Lake.
[Mh] Termos MeSH primário: Biocombustíveis
[Mh] Termos MeSH secundário: Biomassa
Brachiaria
Etanol
Hidrólise
Lagos
Poaceae
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biofuels); 3K9958V90M (Ethanol)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171106
[Lr] Data última revisão:
171106
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170326
[St] Status:MEDLINE


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[PMID]:27706746
[Au] Autor:Paula CM; Figueiredo KG; Souza Sobrinho F; Benites FR; Davide LC; Techio VH
[Ad] Endereço:Laboratório de Citogenética, Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brasil.
[Ti] Título:Microsporogenesis analysis validates the use of artificially tetraploidized Brachiaria ruziziensis in breeding programs.
[So] Source:Genet Mol Res;15(3), 2016 Sep 19.
[Is] ISSN:1676-5680
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:The genus Brachiaria contains species that have great economic importance in the Brazilian agricultural sector, as they enable cattle ranching on acid and poor soils with species that are resistant to spittlebugs and form crop-livestock-forest integration systems. The genus mainly consists of tetraploid (2n = 4x = 36) and apomictic species such as B. decumbens and B. brizantha. Sexuality is found in diploid species (2n = 2x = 18) such as B. ruziziensis. Interspecific hybridization between species of interest is possible by the artificial tetraploidization of B. ruziziensis and the subsequent hybridization with genotypes of B. brizantha and B. decumbens. Therefore, tetraploidized plants have to have normal meiosis or low rates of irregularities, as well as produce viable pollen grains. The objective of this study was to compare meiosis and pollen grain viability and morphology in artificially tetraploidized B. ruziziensis with that of descendants generated from crossing and selfing. The frequency of meiotic abnormalities ranged from 4.43 to 11%, and pollen viability ranged from 61 to 85%. Abnormalities were detected from prophase I to the tetrad stage with a variable frequency between the genotypes. The meiotic behavior of the artificially tetraploidized plants was little affected, and the pollen viability of the genotypes was high. Regarding pollen grain ultrastructure, there were no variations or morphological changes in the different genotypes. The genotypes have meiotic stability and high pollen viability, and can be incorporated into Brachiaria breeding programs.
[Mh] Termos MeSH primário: Brachiaria/genética
Pólen/genética
[Mh] Termos MeSH secundário: Brasil
Cruzamento
Cromossomos de Plantas
Gametogênese Vegetal/genética
Hibridização Genética
Meiose/genética
Poaceae/genética
Poliploidia
Tetraploidia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170331
[Lr] Data última revisão:
170331
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161006
[St] Status:MEDLINE
[do] DOI:10.4238/gmr.15038737


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[PMID]:27206716
[Au] Autor:Worthington M; Heffelfinger C; Bernal D; Quintero C; Zapata YP; Perez JG; De Vega J; Miles J; Dellaporta S; Tohme J
[Ad] Endereço:International Center for Tropical Agriculture (CIAT), Cali 763537, Colombia m.worthington@cgiar.org.
[Ti] Título:A Parthenogenesis Gene Candidate and Evidence for Segmental Allopolyploidy in Apomictic Brachiaria decumbens.
[So] Source:Genetics;203(3):1117-32, 2016 Jul.
[Is] ISSN:1943-2631
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Apomixis, asexual reproduction through seed, enables breeders to identify and faithfully propagate superior heterozygous genotypes by seed without the disadvantages of vegetative propagation or the expense and complexity of hybrid seed production. The availability of new tools such as genotyping by sequencing and bioinformatics pipelines for species lacking reference genomes now makes the construction of dense maps possible in apomictic species, despite complications including polyploidy, multisomic inheritance, self-incompatibility, and high levels of heterozygosity. In this study, we developed saturated linkage maps for the maternal and paternal genomes of an interspecific Brachiaria ruziziensis (R. Germ. and C. M. Evrard) × B. decumbens Stapf. F1 mapping population in order to identify markers linked to apomixis. High-resolution molecular karyotyping and comparative genomics with Setaria italica (L.) P. Beauv provided conclusive evidence for segmental allopolyploidy in B. decumbens, with strong preferential pairing of homologs across the genome and multisomic segregation relatively more common in chromosome 8. The apospory-specific genomic region (ASGR) was mapped to a region of reduced recombination on B. decumbens chromosome 5. The Pennisetum squamulatum (L.) R.Br. PsASGR-BABY BOOM-like (psASGR-BBML)-specific primer pair p779/p780 was in perfect linkage with the ASGR in the F1 mapping population and diagnostic for reproductive mode in a diversity panel of known sexual and apomict Brachiaria (Trin.) Griseb. and P. maximum Jacq. germplasm accessions and cultivars. These findings indicate that ASGR-BBML gene sequences are highly conserved across the Paniceae and add further support for the postulation of the ASGR-BBML as candidate genes for the apomictic function of parthenogenesis.
[Mh] Termos MeSH primário: Brachiaria/genética
Cromossomos de Plantas/genética
Ligação Genética
Partenogênese/genética
Reprodução Assexuada/genética
[Mh] Termos MeSH secundário: Apomixia/genética
Proteínas de Arabidopsis/genética
Brachiaria/crescimento & desenvolvimento
Mapeamento Cromossômico
Genótipo
Polimorfismo de Nucleotídeo Único
Poliploidia
Sementes/genética
Fatores de Transcrição/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arabidopsis Proteins); 0 (BABY BOOM protein, Arabidopsis); 0 (Transcription Factors)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170523
[Lr] Data última revisão:
170523
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160522
[St] Status:MEDLINE
[do] DOI:10.1534/genetics.116.190314


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[PMID]:27192362
[Au] Autor:Pérez AJ; Hussain SM; Pecio L; Kowalczyk M; Herling VR; Stochmal A
[Ad] Endereço:Department of Biochemistry and Crop Quality, Institute of Soil Science and Plant Cultivation, State Research Institute , ul. Czartoryskich 8, 24-100, Pulawy, Poland.
[Ti] Título:Ultrahigh-Performance Liquid Chromatography-High-Resolution Quadrupole Time-of-Flight Mass Spectrometry Based Metabolomics Reveals Key Differences between Brachiaria decumbens and B. brizantha, Two Similar Pastures with Different Toxicities.
[So] Source:J Agric Food Chem;64(22):4686-94, 2016 Jun 08.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Several species of Brachiaria (Poaceae) currently cover extensive grazing areas in Brazil, providing valuable source of feed for a large cattle population. However, numerous cases of toxicity outbreaks in livestock have raised concerns on safety of using these plants, especially B. decumbens. In this study, chemometric analysis of ultrahigh-performance liquid chromatography-high-resolution quadrupole time-of-flight mass spectrometry (UHPLC-HR-QTOF-MS) data has for the first time uncovered qualitative and quantitative differences between metabolomes of toxic B. decumbens and nontoxic B. brizantha. The steroidal saponin protoneodioscin was established as the main biomarker for B. decumbens when compared to B. brizantha, and therefore the key explanation for their phytochemical differentiation. Quantification of protodioscin in both plants showed no significant differences; consequently, the idea that this compound is solely responsible for toxicity outbreaks must be discarded. Instead, we propose that the added occurrence of its stereoisomer, protoneodioscin, in B. decumbens, can be considered as the probable cause of these events. Interestingly, the greatest concentrations of saponins for both species were reached during winter (B. decumbens = 53.6 ± 5.1 mg·g(-1) dry weight (D.W.); B. brizantha = 25.0 ± 1.9 mg·g(-1) D.W.) and spring (B. decumbens = 49.4 ± 5.0 mg·g(-1) D.W.; B. brizantha = 27.9 ± 1.4 mg·g(-1) D.W.), although in the case of B. decumbens these values do not vary significantly among seasons.
[Mh] Termos MeSH primário: Brachiaria/química
Cromatografia Líquida de Alta Pressão/métodos
Diosgenina/análogos & derivados
Espectrometria de Massas/métodos
Metabolômica/métodos
Saponinas/análise
Esteróis/análise
[Mh] Termos MeSH secundário: Ração Animal/análise
Animais
Brachiaria/classificação
Brachiaria/metabolismo
Brachiaria/toxicidade
Brasil
Bovinos
Diosgenina/análise
Diosgenina/metabolismo
Diosgenina/toxicidade
Saponinas/metabolismo
Saponinas/toxicidade
Estações do Ano
Esteróis/metabolismo
Esteróis/toxicidade
[Pt] Tipo de publicação:COMPARATIVE STUDY; EVALUATION STUDIES; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Saponins); 0 (Sterols); 0 (protoneodioscin); D0LC3PH24P (protodioscin); K49P2K8WLX (Diosgenin)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160519
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.6b01296


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[PMID]:27051034
[Au] Autor:Rezende BA; Ribeiro CB; Teixeira DH; Gonçalves FM; Souza Sobrinho F
[Ad] Endereço:Departamento de Biologia, Universidade Federal de Lavras, Lavras, MG, Brasil.
[Ti] Título:Phenotypic characteristics for discrimination between advanced genotypes of Brachiaria ruziziensis.
[So] Source:Genet Mol Res;15(1), 2016 Mar 31.
[Is] ISSN:1676-5680
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to use multivariate methods and Pearson and partial correlations to disregard phenotypic characteristics that contribute little to differentiation between Brachiaria ruziziensis genotypes. Eighty-one genotypes of B. ruziziensis were assessed in completely randomized blocks with three replications. Ten phenotypic characteristics were assessed: plant height, leaf length, leaf width, sheath length, length of the flower stem, length of the inflorescence axis, number of racemes per inflorescence, length of the basal raceme, number of spikelets per basal raceme, and width of the rachis. The best traits for differentiation between genotypes were determined by assessing relative contribution to diversity, canonical variables, as well as Pearson and partial correlations. Four canonical variables were found to account for 57% of the overall variation, while plant height, sheath length, and number of racemes per inflorescence were considered traits that could potentially be disregarded in future assessments.
[Mh] Termos MeSH primário: Brachiaria/genética
Variação Genética
Genótipo
Fenótipo
[Mh] Termos MeSH secundário: Brachiaria/crescimento & desenvolvimento
Melhoramento Vegetal
Característica Quantitativa Herdável
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160407
[St] Status:MEDLINE
[do] DOI:10.4238/gmr.15017774


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[PMID]:27015682
[Au] Autor:de Paula CM; Souza Sobrinho F; Techio VH
[Ad] Endereço:Department of Biology/DBI, Federal University of Lavras (UFLA), Lavras, Minas Gerais, 37200000, Brazil.
[Ti] Título:Chromosomal distribution of H3K4me2, H3K9me2 and 5-methylcytosine: variations associated with polyploidy and hybridization in Brachiaria (Poaceae).
[So] Source:Plant Cell Rep;35(6):1359-69, 2016 Jun.
[Is] ISSN:1432-203X
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:KEY MESSAGE: Assessment of chromosomal distribution of modified histones and 5-methylcytosine shown that there are diversification of chromosomal types among species of Brachiaria and its interspecific hybrids. Histone post-translational modifications and DNA methylation are epigenetic processes that are involved in structural and functional organization of the genome. This study compared the chromosomal distribution of modified histones and 5-methylcytosine (5-mCyt) in species and interspecific hybrids of Brachiaria with different ploidy levels and reproduction modes. The relation between H3K9me2 and 5-mCyt was observed in the nucleolus organizer region, centromeric central domain and pericentromeric region. H3K4me2 was detected in euchromatic domains, mainly in the terminal chromosomal regions. Comparison of chromosomal distribution among species and hybrids showed greater variation of chromosomal types for the H3K9me2 in B. decumbens (tetraploid and apomictic species) and the 963 hybrid, while, for the H3K4me2, the variation was higher in B. brizantha and B. decumbens (tetraploid and apomictic species) and 963 hybrid. The chromosome distribution of 5-mCyt was similar between B. brizantha and B. decumbens, which differ from the distribution observed in B. ruziziensis (diploid and sexual species). Significant alterations in DNA methylation were observed in the artificially tetraploidized B. ruziziensis and in the interspecific hybrids, possibly as result of hybridization and polyploidization processes. The monitoring of histone modifications and DNA methylation allowed categorizing nuclear and chromosomal distribution of these epigenetic marks, thus contributing to the knowledge of composition and structure of the genome/epigenome of Brachiaria species and hybrids. These data can be useful for speciation and genome evolution studies in genus Brachiaria, and represent important markers to explore relationships between genomes.
[Mh] Termos MeSH primário: Brachiaria/genética
Cromossomos de Plantas/genética
Genes de Plantas/genética
Histonas/genética
Hibridização Genética/genética
Poliploidia
[Mh] Termos MeSH secundário: 5-Metilcitosina/metabolismo
Mapeamento Cromossômico
Metilação de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Histones); 6R795CQT4H (5-Methylcytosine)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171004
[Lr] Data última revisão:
171004
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160327
[St] Status:MEDLINE
[do] DOI:10.1007/s00299-016-1969-z


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[PMID]:27012869
[Au] Autor:Fonseca MG; Auad AM; Resende TT; Hott MC; Borges CA
[Ad] Endereço:Entomology Laboratory, Embrapa Dairy Cattle Research Station, Juiz de Fora, MG, Brazil (alexander.auad@embrapa.br; marcyfonseca@gmail.com; tiago.resende@embrapa.br; marcos.hott@embrapa.br), alexander.auad@embrapa.br.
[Ti] Título:How will Mahanarva spectabilis (Hemiptera: Cercopidae) Respond to Global Warming?
[So] Source:J Insect Sci;16, 2016.
[Is] ISSN:1536-2442
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to determine the favorable constant temperature range for Mahanarva spectabilis(Distant) (Hemiptera: Cercopidae) development as well as to generate geographic distribution maps of this insect pest for future climate scenarios. M. spectabilis eggs were reared on two host plants (Brachiaria ruziziensis(Germain and Edvard) and Pennisetum purpureum(Schumach)), with individual plants kept at temperatures of 16, 20, 24, 28, and 32 °C. Nymphal stage duration, nymphal survival, adult longevity, and egg production were recorded for each temperature*host plant combination. Using the favorable temperature ranges for M. spectabilis development, it was possible to generate geographic distribution. Nymphal survival was highest at 24.4 °C, with estimates of 44 and 8% on Pennisetum and Brachiaria, respectively. Nymphal stage duration was greater on Brachiaria than on Pennisetum at 20 and 24 °C but equal at 28 °C. Egg production was higher on Pennisetum at 24 and 28 °C than at 20 °C, and adult longevity on Pennisetum was higher at 28 °C than at 20 °C, whereas adult longevity at 24 °C did not differ from that at 20 and 28 °C. With these results, it was possible to predict a reduction in M. spectabilis densities in most regions of Brazil in future climate scenarios.
[Mh] Termos MeSH primário: Aquecimento Global
Hemípteros/fisiologia
[Mh] Termos MeSH secundário: Animais
Brachiaria/parasitologia
Brasil
Hemípteros/crescimento & desenvolvimento
Longevidade/fisiologia
Ninfa/fisiologia
Oviposição/fisiologia
Pennisetum/parasitologia
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1610
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160326
[St] Status:MEDLINE


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[PMID]:26854007
[Au] Autor:Silva EB; Fonseca FG; Alleoni LR; Nascimento SS; Grazziotti PH; Nardis BO
[Ad] Endereço:a UFVJM, Campus JK , Diamantina , Minas Gerais , Brazil.
[Ti] Título:Availability and toxicity of cadmium to forage grasses grown in contaminated soil.
[So] Source:Int J Phytoremediation;18(9):847-52, 2016 Sep.
[Is] ISSN:1549-7879
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:It is important to know the mechanisms for forage development, especially those related to the tolerance of potentially toxic elements, when considering their use in phytoremediation in heavy metal contaminated areas. In this study, we evaluated plant growth, concentration, and the availability of cadmium (Cd) for forage grasses (Panicum maximum Jacq. cv. Aruana and cv. Tanzânia; Brachiaria decumbens cv. Basilisk; Brachiaria brizantha cv. Xaraés and cv. Marandu) cultivated in Cd contaminated soils. The experiments were performed under greenhouse conditions over a 90-day evaluation period, and the Cd rates were 2, 4, and 12 mg/kg of soil. The relative growth rate of the forage grasses decreased as Cd rates increased, and the following descending order of susceptibility was observed: Marandu > Xaraés > Aruana > Tanzânia > Basilisk, with regard to phytotoxicity in these plants. The forage Cd concentration increased in line with increases in the Cd rates. Cd contents extracted by Mehlich-1 and by diethylenetriaminepentaacetic acid presented high positive correlation with forage relative growth. The forage plants did not block Cd entry into the food chain because they were not capable of limiting Cd absorption.
[Mh] Termos MeSH primário: Brachiaria/efeitos dos fármacos
Cádmio/toxicidade
Panicum/efeitos dos fármacos
Poluentes do Solo/toxicidade
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Brachiaria/metabolismo
Brasil
Cádmio/metabolismo
Panicum/metabolismo
Poluentes do Solo/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil Pollutants); 00BH33GNGH (Cadmium)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170406
[Lr] Data última revisão:
170406
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160209
[St] Status:MEDLINE
[do] DOI:10.1080/15226514.2016.1146225


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[PMID]:26710183
[Au] Autor:Lopes G; Ferreira PA; Pereira FG; Curi N; Rangel WM; Guilherme LR
[Ad] Endereço:a Department of Soil Science , Federal University of Lavras , Lavras , MG, CEP , Brazil.
[Ti] Título:Beneficial use of industrial by-products for phytoremediation of an arsenic-rich soil from a gold mining area.
[So] Source:Int J Phytoremediation;18(8):777-84, 2016 Aug 02.
[Is] ISSN:1549-7879
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:This study investigated two industrial by-products - red mud (RM) and its mixture with phosphogypsum (RMG), as amendments in an As((5+))-contaminated soil from a gold mining area in Brazil in order to grow three plant species: Brachiaria decumbens, Crotalaria spectabilis, and Stylosanthes cv. Campo Grande. These amendments were applied to reach a soil pH of 6.0. Using RM and RMG increased shoot dry matter (SDM) and root dry matter (RDM) of most plants, with RMG being more effective. Adding RMG increased the SDM of Brachiaria and Crotalaria by 18 and 25% and the RDM by 25 and 12%, respectively. Stylosanthes was sensitive to As toxicity and grew poorly in all treatments. Arsenic concentration in shoots of Brachiaria and Crotalaria decreased by 26% with the use of RMG while As in roots reduced by 11 and 30%, respectively. Also, the activities of the plant oxidative stress enzymes varied following treatments with the by-products. The plants grew in the As-contaminated soil from the gold mining area. Thus, they might be employed for phytoremediation purposes, especially with the use of RMG due to its potential advantage in terms of nutrient supply (Ca(2+) and SO4(2-) from phosphogypsum).
[Mh] Termos MeSH primário: Arsênico/análise
Biodegradação Ambiental
Ouro
Resíduos Industriais
Mineração
Poluentes do Solo/análise
[Mh] Termos MeSH secundário: Brachiaria/efeitos dos fármacos
Brachiaria/crescimento & desenvolvimento
Crotalaria/efeitos dos fármacos
Crotalaria/crescimento & desenvolvimento
Fabaceae/efeitos dos fármacos
Fabaceae/crescimento & desenvolvimento
Solo/química
Poluentes do Solo/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Industrial Waste); 0 (Soil); 0 (Soil Pollutants); 7440-57-5 (Gold); N712M78A8G (Arsenic)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151229
[St] Status:MEDLINE
[do] DOI:10.1080/15226514.2015.1131240



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