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Registros recuperados: 64
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Absorção de metais pesados do lodo de esgoto pelo feijoeiro (Phaseolus vulgaris L.) BABT
Miyazawa,Mário; Oliveira,Edson L. de; Parra,Mauro S.; Yamashita,Miyuki.
Toxicity and uptake of heavy metals of sewage sludge by beans (Phaseolus vulgaris L.) were evaluated in green house experiments. Treatments consisted of 1,0 ; 2,0 and 5,0% (m/m) of dry sewage sludge, collected from Londrina (Bom Retiro and ETE-Sul) and Curitiba (ETE-Belém and RALF). Bean ( variety IAPAR 57) was sown three times at 0, 120 and 240 days after the treatments have been applied. Contents of Cd, Cr, Co, Cu, Ni, and Pb in bean tissues cultivated with 5,0% (m/m) of all sewage sludge were similar to the control and Ba contents were reduced by increasing the quantity of sewage sludge in the soil. The Zn content in tissue bean incresed from 86 mg kg-1 of control to 462 mg kg-1 by applying 5% (m/m) of sewage sludge in soil, but plant beans did not show...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris L.; Heavy metal; Metal toxicity; Metal fractionation.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000100012
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Bioaccumulation of mercury, cadmium, zinc, chromium, and lead in muscle, liver, and spleen tissues of a large commercially valuable catfish species from Brazil Anais da ABC (AABC)
Arantes,Fábio P.; Savassi,Lourenço A.; Santos,Hélio B.; Gomes,Marcos V.T.; Bazzoli,Nilo.
The increasing amounts of heavy metals entering aquatic environments can result in high accumulation levels of these contaminants in fish and their consumers, which pose a serious risk to ecosystems and human health. We investigated the concentrations of mercury (Hg), cadmium (Cd), zinc (Zn), chromium (Cr), and lead (Pb) in muscle, liver, and spleen tissues of Pseudoplatystoma corruscans specimens collected from two sites on the Paraopeba River, Brazil. The level of heavy metals concentrations in the tissues was often higher in viscera (i.e. liver and spleen) than in muscle, and thus, the viscera should not be considered for human consumption. Correlations between metal concentrations and fish size were not significant. Although the levels of muscle...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Contamination; Freshwater fish; Heavy metal; Human health.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100137
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Biomassa e atividade microbianas do solo sob influência de chumbo e da rizosfera da soja micorrizada. Repositório Alice
ANDRADE, S.A.L. de; SILVEIRA, A.P.D. da.
O objetivo deste trabalho foi avaliar o efeito da adição de chumbo (Pb) ao solo na biomassa e atividade microbianas do solo sob influência da rizosfera de soja micorrizada. O trabalho foi realizado em casa de vegetação, com delineamento inteiramente casualizado num esquema fatorial 4x2x2 utilizando-se 0, 150, 300 e 600 mg dm-3 de Pb, inoculação ou não do fungo micorrízico arbuscular (FMA), Glomus macrocarpum, e duas épocas de amostragem - florescimento e maturação da soja. Avaliaram-se o C da biomassa microbiana, a liberação de CO2 do solo e a atividade de três enzimas, desidrogenase, fosfatase alcalina e arilssulfatase. O Pb afetou negativamente o C da biomassa e a atividade da microbiota rizosférica, ocorrendo interação entre a presença de propágulos de...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Respiração basal do solo; Atividade enzimática; Fungo micorrízico arbuscular; Metal pesado; Qualidade do solo; Soil basal respiration; Enzimatic activity; Arbuscular mycorrhizal fungus; Heavy metal; Soil quality.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/113131
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Biosolids conditioning and the availability of Cu and Zn for rice Scientia Agricola
Pires,Adriana Marlene Moreno; Mattiazzo,Maria Emília.
Sewage treatment process is a factor to be considered for biosolid use in agriculture. The greatest sewage treatment facility of São Paulo State (Barueri/SP) altered in the year 2000 of its sludge treatment. The addition of ferric chloride and calcium oxide was substituted by the addition of polymers. This change can modify heavy metal phytoavailability. A green house experiment, using 2 soils treated with biosolids (three with and one without polymers with and without polymers) was performed to evaluate Cu and Zn phytoavailability using rice (Oryza sativa L.) as test plant. Three kilograms of two soils (Haphorthox abd Hapludox) were placed in pots and the equivalent to 50 Mg ha-1 (dry basis) of biosolid was added and incorporated. The statistical design...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sewage sludge; Heavy metal; Phytoavailability; Extractant.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100024
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Cadmium toxicity causes oxidative stress and induces response of the antioxidant system in cucumber seedlings Braz. J. Plant Physiol.
Gonçalves,Jamile F.; Becker,Alexssandro G.; Cargnelutti,Denise; Tabaldi,Luciane A.; Pereira,Luciane B.; Battisti,Vanessa; Spanevello,Rosélia M.; Morsch,Vera M.; Nicoloso,Fernando T.; Schetinger,Maria R.C..
In this study, the effects of cadmium (Cd) on lipid peroxidation, electrolyte leakage, protein oxidation, ascorbate peroxidase (APX; E.C. 1.11.1.11), catalase (CAT; E.C. 1.11.1.6) and superoxide dismutase (SOD; E.C. 1.15.1.1) activities, and ascorbic acid, non-protein thiol groups and total soluble protein contents in cucumber seedlings (Cucumis sativus L.) were investigated. Seedlings were grown in vitro in an agar-solidified substrate containing four Cd levels as CdCl2 (0, 100, 400, and 1000 µmol L-1) for 10 d. The lowest Cd level decreased the malondialdehyde concentration. Electrolyte leakage increased only at 1000 µmol Cd L-1, whereas protein oxidation and total soluble protein content were enhanced at 400 and 1000 µmol Cd L-1. Activity of APX was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antioxidant enzymes; Ascorbic acid; Cucumis sativus; Heavy metal; Lipid peroxidation; Protein oxidation.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000300006
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Capacity resistance of endophytic fungi the mercury. Repositório Alice
PIETRO-SOUZA, W.; VENDRUSCULLO, S. J.; MELLO, I. S.; LIOTTI, R. G.; BICHARA, K. P. A.; SILVA, G. F.; ALMEIDA, E. G.; NUNES DA CUNHA, C.; SOARES, M. A..
Contamination of biological systems by mercury represents a global concern, given the difficulty of degradation, persistence and potential toxicity of this metal in the environment. Remediation strategies of soils contaminated with mercury are required and the use of microorganisms as bioremediation agents is fully justified, in particular, the various mechanisms of tolerance to heavy metals allocated to them, particularly for fungi arising from various chemical processes, such as transformation valence, intra and extracellular precipitation and oxidation. Our hypothesis is that endophytic fungi isolated from areas contaminated by mercury present higher resistance to this metal.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: MIC; Wetland; Heavy metal; Bioremediation.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1027546
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Cloroplast pigments as indicators of lead stress REA
Gomes,Silvânia M. de S.; Lima,Vera Lucia A. de; Souza,Adailson P. de; Nascimento,Joab J. V. R. do; Nascimento,Everaldo S. do.
Plants respond to environmental adversities, becoming an indicator for assessing the environment quality. In this aspect, chlorophyll contents as well, carotenoids are used as a reliable indicator to associate environmental quality and pollution, mainly regarding the toxicity of heavy metals in higher plants. So, we aimed to evaluate the content of chlorophyll a, b, and total chlorophylls and carotenoids in plants vetiver [Vetiveria zizanioides (L.) Nash], maize (Zea mays L.) cv. AG 1051, sunflower (Helianthus annuus L.) cv. BRS 122/V-2000, and castor beans (Ricinus communis L. ) cv . Northeastern BRS grown in contaminated soil with lead, with and without correction of soil pH, so they were used as indicators of metal stress by the soil. From the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metal; Pollution; Photosynthesis.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500007
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Copper translocation and tolerance in seedlings of tree species grown in contaminated soil AGRIAMBI
Silva,Rodrigo F. da; Ros,Clovis O. Da; Scheid,Douglas L.; Grolli,André L.; Marco,Rudinei De; Missio,Evandro L..
ABSTRACTHigh concentrations of copper (Cu) may be toxic to plants, yet some species can be tolerant to soils contaminated by this metal. The study aimed to evaluate Cu translocation and tolerance in seedlings of ‘timbaúva’ (Enterolobium contortisiliquum (Vell.) Morong), ‘pata-de-vaca’ (Bauhinia forficata Link) and ‘amendoim-bravo’ (Pterogyne nitensTul) subjected to Cu-contaminated soil. The study was conducted in a greenhouse for 120 days, using as substrate a clayey Oxisol. The experiment was set in a completely randomized design, using a 3 x 6 factorial scheme, corresponding to three forest species (‘timbaúva’, ‘pata-de-vaca’ and ‘amendoim-bravo’) and six Cu doses in the soil (0, 60, 120, 180, 240 and 300 mg kg-1), with six replicates. The following...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metal; Phytoremediation; Reforestation; Soil cover.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001101093
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Determinação de cádmio, cobre, cromo, níquel, chumbo e zinco em fosfatos de rocha. Repositório Alice
CAMPOS, M.L.; SILVA, F.N. da; FURTINI NETO, A.E.; GUILHERME, L.R.G.; MARQUES, J.J.; ANTUNES, A.S..
A preocupação com metais pesados provenientes de fertilizantes minerais deve-se à possibilidade de entrada desses elementos na cadeia alimentar. O objetivo deste trabalho foi determinar o teor de metais pesados e comparar três métodos de extração (Embrapa, USEPA 3051A e USEPA 3050B) de Cd, Cr, Cu, Ni, Pb e Zn em fosfatos de rochas nacionais e importados. A quantificação dos teores desses elementos foi feita em espectrofotômetro de absorção atômica de chama ar-acetileno. Entre os fosfatos estudados, o termofosfato apresentou concentrações significativamente superiores de Cr, Cu, Ni e Zn e o fosfato natural 2, de Cu, Ni, Pb e Zn. O fosfato reativo 3 apresentou a maior quantidade de Cd (145±13 mg kg-1) e o fosfato natural 2, a maior quantidade de Pb (234±9 mg...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Concentração; Extração; Metais pesados; Fertilizantes; Concentration; Extraction; Heavy metal; Fertilizers.
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/handle/doc/113967
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Determination of the potential of Pistia stratiotes L. in removing nickel from the environment by utilizing its rhizofiltration capacity BABT
LEBLEBİCİ,Zeliha; DALMIŞ,Esra; ANDEDEN,Enver Ersoy.
Abstract: The aim of this study is to explain the biological response and rhizofiltration capacity of Pistia stratiotes, which is an aquatic macrophyte, in alleviating heavy metal stress. In our study, Pistia species were exposed to Nickel (Ni) at different concentrations over seven days. The potential of the aquatic macrophytes in accumulating heavy metals in the water and in removing them from the environment was evaluated by determining the bio-concentration factors (BCF). Selected biological parameters in the leaves of Pistia stratiotes, including metal accumulation, photosynthetic pigment amount, lipid peroxidation activity, and growth rates were measured at the end of the seven-day period. The highest amount of Ni accumulation in P. stratiotes...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metal; Bioconcentration factor; Pistia stratiotes; Rhizofiltration.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100703
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Differential behavior of the summer cover crops in the absorption and translocation of copper. Repositório Alice
VENDRUSCOLO, D.; SANTANA, N. A.; SOUTO, K. M.; FERREIRA, P. A.; MELO, G. W. B. de; JACQUES, R. J. S..
Phytoremediation is an alternative technique used to treat copper-contaminated soils. The objective of this research was to explore the behavior of nine summer cover crops regarding the growth, absorption and translocation of copper in soils with contamination levels exceeding the Value of Prevention, with a view to selecting plants for phytoremediation programs. In the experiments the Cambisol was contaminated with copper, added in doses of 0, 100, 200, 400, 500 and 600mg kg -1, in which the following nine plants were cultivated under greenhouse conditions: Canavalia ensiformis, Cajanus cajan, Dolichos lablad, Mucuna cinereum, Mucuna aterrima, Crotalaria juncea, Crotalaria spectabilis, Pennisetum glaucum and Paspalum notatum. At 90 days after sowing the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Heavy metal; Phytoextraction; Soil pollution; Phytoremediation.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103432
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Differential behavior of the summer cover crops in the absorption and translocation of copper Ciência Rural
Vendruscolo,Diogo; Santana,Natielo Almeida; Souto,Kelen Müller; Ferreira,Paulo Ademar Avelar; Melo,George Wellington Bastos de; Jacques,Rodrigo Josemar Seminoti.
ABSTRACT: Phytoremediation is an alternative technique used to treat copper-contaminated soils. The objective of this research was to explore the behavior of nine summer cover crops regarding the growth, absorption and translocation of copper in soils with contamination levels exceeding the Value of Prevention, with a view to selecting plants for phytoremediation programs. In the experiments the Cambisol was contaminated with copper, added in doses of 0, 100, 200, 400, 500 and 600mg kg-1, in which the following nine plants were cultivated under greenhouse conditions: Canavalia ensiformis, Cajanus cajan, Dolichos lablad, Mucuna cinereum, Mucuna aterrima, Crotalaria juncea, Crotalaria spectabilis, Pennisetum glaucum and Paspalum notatum. At 90 days after...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metal; Soil pollution; Phytoremediation; Phytostabilization; Phytoextraction.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001200251
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Efeito da forca ionica da solucao de equilibrio sobre a adsorcao/dessorcao de chumbo em Latossolos brasileiros. Repositório Alice
PIERANGELI, M.A.P.; GUILHERME, L.R.G.; OLIVEIRA, L.R.; CURI, N.; SILVA, M.L.N..
A adsorção/dessorção de metais pelos solos é afetada por vários fatores, dentre os quais, a concentração salina da solução do solo. Este estudo teve o objetivo de avaliar o efeito da variação da força iônica da solução de equilíbrio (I) sobre a adsorção/dessorção de Pb por Latossolos brasileiros. Amostras do horizonte A foram colocadas para reagir com Pb(NO3)2 0,15 mmol L-1 em Ca(NO3)2 5 e 50 mmol L-1 (pH 5,5; I = 15 e 150 mmol L-1; relação solo:solução 1:100), durante 72 horas. Em seguida, as amostras foram colocadas para dessorver em Ca(NO3)2 5 mmol L-1. Dos 17 Latossolos, apenas seis apresentaram diferenças significativas entre as quantidades adsorvidas nos dois valores de I. As correlações significativas obtidas entre as quantidades adsorvidas e alguns...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Metal pesado; Ions; Processo de transporte no solo; Poluicao do solo; Heavy metal; Soil transport processes; Soil pollution.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/103969
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Efeito do chumbo sobre a fertilização artificial e incubação de ovos de jundiá cinza (Rhamdia quelen) - DOI: 10.4025/actascianimsci.v30i2.4703 Animal Sciences
Hilbig, Cleonice Cristina; UNIOESTE; Bombardelli, Robie Allan; UNOESTE; Sanches, Eduardo Antônio; UNESP; Oliveira, José Dílson Silva de; UNIOESTE; Baggio, Diego Mendes; UNIOESTE; Souza, Bruno Estevão de; UNIOESTE.
A poluição no meio aquático afeta o potencial reprodutivo de várias espécies de peixes. Diante disso, o presente experimento foi conduzido com o objetivo de avaliar os efeitos causados pela contaminação da água utilizada no processo de fertilização artificial e incubação inicial de ovos de jundiá cinza (Rhamdia quelen) por chumbo. Foram realizados dois ensaios, os quais foram distribuídos em delineamento experimental inteiramente casualizado, compostos por seis tratamentos, com quatro e seis repetições, para o primeiro e o segundo ensaio, respectivamente. O primeiro ensaio consistiu na contaminação da água utilizada no processo de fertilização artificial, com os níveis de 0,00; 0,01; 0,02; 0,03; 0,04 e 0,05 mg de Pb.L-1, e incubação dos ovos em água limpa....
Palavras-chave: 5.04.05.00-4 Produção Animal fertilização artificial; Jundiá cinza; Metal pesado; Reprodução de peixes; Rhamdia quelen. artificial fertilization; Gray jundiá; Heavy metal; Fish reproduction; Rhamdia quelen.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4703
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Effect of cadmium on growth, micronutrient concentration, and δ-aminolevulinic acid dehydratase and acid phosphatase activities in plants of Pfaffia glomerata Braz. J. Plant Physiol.
Skrebsky,Etiane C.; Tabaldi,Luciane A.; Pereira,Luciane B.; Rauber,Renata; Maldaner,Joseila; Cargnelutti,Denise; Gonçalves,Jamile F.; Castro,Gabriel Y.; Shetinger,Maria R.C.; Nicoloso,Fernando T..
Pfaffia glomerata (Spreng.) Pedersen plantlets were grown under different cadmium (Cd) concentrations (0, 20, 40, 60 and 80 μM) in a hydroponic system during 7 d. Plant growth, micronutrient, chlorophyll and carotenoid concentrations, as well as δ-aminolevulinic acid dehydratase (ALA-D; E.C.4.2.1.24) and acid phosphatase (AP; E.C.3.1.3.2) activities were then analysed. Cadmium concentration in both shoots and roots increased with increasing external Cd levels. Metal concentration was on average 12-fold greater in root than in shoot tissues. Root length was unaffected by Cd treatments. In contrast, dry weight of both shoot and roots increased significantly upon addition of 20 and 40 μM Cd. Moreover, shoot and total plant dry weight was only reduced in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian ginseng; Carotenoid; Chlorophyll; Heavy metal; Micronutrient; Phytoremediation.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202008000400004
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Effect of nickel chloride on Arabidopsis genomic DNA and methylation of 18S rDNA Electron. J. Biotechnol.
Li,Zhongai; Chen,Xin; Li,Suoping; Wang,Zicheng.
Background In recent years, nickel (Ni) has been widely applied in industrial and agricultural production and has become a kind of environmental pollution. In this study, the effect of nickel chloride (NiCl2) with different concentrations on Arabidopsis genomic stability and DNA methylation has been demonstrated. The nucleolus variation and 18S rDNA methylation after NiCl2 treatment have been analyzed. Results The results are as follows: (1) The NiCl2 could result in heritable genomic methylation variations. The genomic DNA methylation variations have been detected by methylation-sensitive amplified polymorphism (MSAP) molecular markers, and the result showed that after NiCl2 treatment, there was methylation variation in T0 generation seedlings, and...
Tipo: Journal article Palavras-chave: DNA methylation; Heavy metal; Methylation sensitive amplified polymorphism (MSAP); Nickel.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000100010
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Effect of Organic Matter on Manganese Solubility BABT
Andrade,Emilene; Miyazawa,Mário; Pavan,Marcos A.; Oliveira,Edson L. de.
The objective of this study was to re-evaluate some aspects of the relative importance of organic matter on Mn solubility in acid soil conditions. Field study showed that black oats, oil seed radish, elephant grass, lupin, leucaena, and coffee leaves serving as mulch decreased Mn solubility as compared with bare soil. The decrease in Mn solubility with plant mulch was related to increase in soil moisture content. Laboratory study showed that increasing temperature from 25 to 100ºC increased Mn solubility and total soil organic carbon was little changed; from 150 to 200ºC increased both Mn solubility and organic carbon oxidation, and up to 300ºC decreased Mn solubility and stoped organic carbon oxidation . Aluminum solubility always increased with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant residue; Mulch; Organic carbon; Heavy metal; Micronutrient.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000100003
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Effect of Quail Litter Biochar on Productivity of Four New Physic Nut Varieties Planted in Cadmium-Contaminated Soil Chilean J. Agric. Res.
Suppadit,Tawadchai; Kitikoon,Viroj; Phubphol,Anucha; Neumnoi,Penthip.
Biochar can improve soil structure and water retention, enhance nutrient availability and retention, ameliorate acidity, and reduce heavy metal toxicity to plant roots. In this study, a basin experiment was conducted to investigate the effects of quail litter biochar (QLB) on the availability of Cd to physic nut (Jatropha curcas L.) plants. QLB was applied to the soil in which four new physic nut varieties (Takfa, Doi Saket, Lao, and Rayong) in factorial combinations at four levels (0, 5, 10, and 15 g kg-1 soil) to soil that contained 60.8 mg Cd kg-1. After transplanting plant height and canopy radius were measured every 2-mo and the number of leaves and branches at 6-mo, while yield components and Cd residues were measured at 8-mo intervals. The...
Tipo: Journal article Palavras-chave: Adsorption; Heavy metal; Phytoremediation; Plant production; Pyrolysis; Soil amendment.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100020
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Effectivity of anti-oxidative enzymatic system on diminishing the oxidative stress induced by aluminium in chickpea (Cicer arietinum L.) seedlings Braz. J. Plant Physiol.
Singh,Sushant; Verma,Anil; Dubey,Vikash Kumar.
We explore physiological and biochemical response under increasing aluminium stress at different time interval in chickpea seedlings (Cicer arietinum L.). Germination percentage and root length were found to be highly reduced under increasing metal stress. Aluminium induced oxidative stress and led to fluctuations in antioxidative activity responses. Roots showed higher antioxidative activity compared to shoots. Low concentration of aluminium after a brief treatment induced higher superoxide dismutase (SOD; EC 1.15.1.1), ascorbate peroxidase (APX; EC 1.11.1.11) and guaiacol peroxidase (GPX; EC 1.11.1.7) activity whereas longer duration of treatment led to decrease in these activities. Malondialdehyde concentration indicated higher oxidative damage in roots...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ascorbate peroxidases; Heavy metal; Malondialdehyde; Superoxide dismutase; Oxidative stress.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000100007
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Effects of hormonal priming on seed germination of pigeon pea under cadmium stress Anais da ABC (AABC)
SNEIDERIS,LARISSA C.; GAVASSI,MARINA A.; CAMPOS,MARCELO L.; D'AMICO-DAMIÃO,VICTOR; CARVALHO,ROGÉRIO F..
In this work we investigated whether priming with auxin, cytokinin, gibberellin, abscisic acid and ethylene, alters the physiological responses of seeds of pigeon pea germinated under water and cadmium stress. Seeds treated with water or non-treated seeds were used as control. Although compared to non-treated seeds we found that the hormone treatments improve the germination of pigeon pea under cadmium stress, however, these treatments did not differ from water. However, we also observed a trend of tolerance to the effects of cadmium in the presence of ethylene, suggesting that the use of this hormone may be an efficient method to overcome seed germination under metal stress.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cajanus Cajan; Heavy metal; Hormones; Pretreatment in seeds; Abiotic stress.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000401847
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