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Id: biblio-1285560
Autor: Rezende, Karina Fernandes Oliveira; Almeida, Genésio Lopes Mercês de; Henriques, Marcelo Barbosa; Barbieri, Edison.
Título: Effect of Fluoxetine Hydrochloride on Routine Metabolism of Lambari (Deuterodon iguape, Eigenmann, 1907) and Phantom Shrimp (Palaemon pandaliformis, Stimpson, 1871)
Fonte: Braz. arch. biol. technol;64:e21200262, 2021. tab, graf.
Idioma: en.
Projeto: Fundação de Amparo à Pesquisa do Estado de São Paulo; . National Council for Scientific and Technological Development.
Resumo: HIGHLIGHTS Fluoxetine increases the metabolic rate and excretion of ammonia in both species. O:N ratio in fish showed higher values in the highest concentrations of fluoxetine. The LC50 - 96 hour values of Palaemon pandaliformis represented greater toxicity. Both species are a good biological model for fluoxetine exposure studies.

Abstract Fluoxetine is an emerging pollutant that acts as a selective serotonin reuptake inhibitor (SSRI) and being a hydrolytic molecule that is photolytically stable and accumulaties in biological tissues, its disposal in the aquatic environment can interfere with the physiology of fish and shrimp. Thus, the objective of this study was to analyze the effects of fluoxetine on routine metabolism (metabolic rate, specific ammonia excretion and O:N ratio) of Deuterodon iguape and Palaemon pandaliformis. For this, five groups of each species, were exposed to different concentrations of fluoxetine for 24 hours (D. iguape) and 2 hours (P. pandaliformis). The results demonstrated that in D. iguape exposure to fluoxetine significantly increased both the metabolic rate by 75%, 85%, 55% and 50% for concentrations of 0.05; 0.1; 0.5 and 1.0 mgL-1, respectively, and the specific ammonia excretion by 40%, 48% and 20% for concentrations of 0.05; 0.1 and 0.5 mgL-1, respectively, when compared with their control. The O:N ratio was statistically greater in concentrations of 0.5 and 1.0 mgL-1. Concerning P. pandaliformis, exposure to fluoxetine increased metabolic rate at concentrations 30.0 and 60.0 µgL-1, and also increased specific ammonia excretion at concentrations 10.0, 30.0 and 60.0 µgL-1, when compared with the control group. It was concluded that exposure to fluoxetine increases the routine metabolism of both species and that at the concentration 1.0 mgL-1, Deuterodon iguape required different energy substrates.
Descritores: Fluoxetina/metabolismo
Palaemonidae/efeitos dos fármacos
Amônia/metabolismo
-Modelos Biológicos
Responsável: BR1.1 - BIREME


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Id: biblio-1132178
Autor: Schardong, Roberta Moriconi Freire; Moro, Marcelo Freire; Bonilla, Oriel Herrera.
Título: Aquaponic System with White Shrimp Litopenaeus vannamei Rearing and Production of the Plants Batis maritima, Sarcocornia neei and Sporobolus virginicus
Fonte: Braz. arch. biol. technol;63:e20190118, 2020. tab, graf.
Idioma: en.
Resumo: Abstract Aquaponics is a system that integrates aquaculture with plant production in which two species are benefited, and there is water saving. In this study was carried out with an aquaponic system to verify the interaction between the growth of the halophytes Batis maritime, Sarcocornia neei, and Sporobolus virginicus associated with white shrimp Litopenaeus vannamei rearing. We also investigated if there were different responses of physicochemical variables of the water in the experimental shrimp culture ponds integrated into the growth of plants and control ponds, without plants, throughout a 56-day period. The treatment experiment and control presented a statistically significant difference in total dissolved solids, salinity, total suspended solids, ammonia, orthophosphate, and nitrite. In the experimental treatment, with the presence of plants and recirculating water, a reduction of total suspended solids, ammonia and orthophosphate was observed. The rate of shrimp production was not significantly different between treatments, and the performance was similar to that of other studies. The biomass gain of the halophyte B. maritima was 876.6 grams in 0.5 m² and of S. neei was 48.8 grams in 0.16 m². All plants of the species S. virginicus died during the experiment.
Descritores: Água/química
Chenopodiaceae/crescimento & desenvolvimento
Penaeidae/crescimento & desenvolvimento
Plantas Tolerantes a Sal/crescimento & desenvolvimento
-Fosfatos
Aquicultura
Hidroponia
Biomassa
Chenopodiaceae/metabolismo
Amônia
Nitritos
Limites: Animais
Responsável: BR1.1 - BIREME


  3 / 147 LILACS  
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Id: lil-502562
Autor: Anon.
Título: Guías del laboratorio para Screening, diagnóstico y monitoreo de la lesión hepática: Seccion I / Guides laboratory for Screening, Diagnosis and monitoring of liver injury: Section I
Fonte: Acta bioquím. clín. latinoam;39(3):359-376, 2005. tab, graf.
Idioma: es.
Descritores: Testes de Função Hepática/normas
-Albuminas
Amônia/sangue
Bilirrubina
Carcinoma Hepatocelular/diagnóstico
Cirrose Hepática/diagnóstico
Fosfatase Alcalina/sangue
Hepatite Crônica/diagnóstico
Hepatite Viral Humana/diagnóstico
Testes de Função Hepática/métodos
Tempo de Protrombina
Transaminases/sangue
gama-Glutamiltransferase/sangue
Limites: Humanos
Tipo de Publ: Guia
Responsável: AR144.1 - CIBCHACO - Centro de Información Biomedica del Chaco


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Id: lil-719129
Autor: Gutiérrez N, Mónica; Mercado S, Cristina; Torrealba J, Bernardita; Whitte V, Sandra; Samaniego F, Wagner; Antolini T, Mónica.
Título: Inhalación masiva de amoniaco: reporte de dos casos / Massive ammonia inhalation: report of two cases
Fonte: Rev. chil. enferm. respir;30(2):95-99, jun. 2014. ilus, tab.
Idioma: es.
Resumo: Ammonia (NH3) is an irritant and corrosive gas whose inhalation at high concentrations mainly occurs during agricultural and industrial activities, as occupational accidents. The extent and severity of the damage depends on the concentration and time of exposure to the toxic, which can cause skin, eye, respiratory and life-threatening injuries. We present two cases of patients acutely exposed to high concentrations of NH3. Both patients survived to the acute phase of the respiratory injury, but developed chronic lung derangements.

El amoniaco (NH3) es un gas irritante y corrosivo cuya inhalación aguda en altas concentraciones se produce principalmente durante accidentes laborales en el sector agrícola e industrial. La extensión y severidad del daño depende de la concentración y tiempo de exposición al tóxico, el cual puede causar lesiones a nivel cutáneo, ocular, respiratorio y riesgo vital. Presentamos dos casos de pacientes expuestos en forma aguda a NH3 en altas concentraciones. Ambos pacientes sobrevivieron a la fase aguda y evolucionaron con lesiones respiratorias crónicas.
Descritores: Bronquiectasia/induzido quimicamente
Bronquiolite/induzido quimicamente
Lesão Pulmonar/induzido quimicamente
Amônia/efeitos adversos
-Brônquios/lesões
Queimaduras Químicas/complicações
Radiografia Torácica
Acidentes de Trabalho
Tomografia Computadorizada por Raios X
Doenças Profissionais/induzido quimicamente
Limites: Humanos
Masculino
Feminino
Adulto
Tipo de Publ: Relatos de Casos
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-888796
Autor: Wasielesky, W J; Poersch, L H; Martins, T G; Miranda-Filho, K C.
Título: Chronic effects of nitrogenous compounds on survival and growth of juvenile pink shrimp / Efeito crônico de compostos nitrogenados sobre a sobrevivência e crescimento de juvenis de camarão rosa
Fonte: Braz. j. biol;77(3):558-565, July-Sept. 2017. tab.
Idioma: en.
Resumo: Abstract In response to growing worldwide market demand, intensive shrimp farming, based on high feed, has developed over the past decade. The nitrogenous compounds mainly generated by animal excretion can cause deterioration of water quality and produce chronic or even acute toxicity to aquatic animals. As prevention, theoretical safety levels have been estimated from acute toxicity tests and they are traditionally used to prevent toxic effects on biota. However, are those concentrations of nitrogenous compounds really safe to Farfantepenaeus paulensis? The current study aimed to investigate the lethal and sublethal effects of ammonia, nitrite and nitrate to juvenile F. paulensis based on safety levels. Each experiment was performed independently in 100 L tanks for 30 days. The survival rates and wet weight of all shrimps were recorded every 10 days. The concentrations tested for ammonia, nitrite and nitrate were respectively: treatment "T1/4", a quarter of the safety level (0.91 mg/L TA-N, 2.55 mg/L NO2--N and 80.7 mg/L NO3--N); treatment "TSL", the safety level (3.65 mg/L TA-N, 10.2 mg/L NO2--N and 323 mg/L NO3--N); and treatment "T2X", twice the safety level (7.30 mg/L TA-N, 20.4 mg/L NO2--N and 646 mg/L NO3--N). For F. paulensis cultivation, the real safety level for nitrite was estimated to be 2.55 mg/L NO2--N. For ammonia and nitrate, the recommended concentrations were <0.91 mg/L TA-N corresponding to 0.045 mg/L NH3-N and <80.7 mg/L NO3--N, respectively.

Resumo Em resposta à crescente demanda do mercado mundial, a carcinicultura intensiva tem se desenvolvido ao longo da última década. Os compostos nitrogenados gerados principalmente pela excreção dos animais podem causar a deterioração da qualidade da água e produzir toxicidade crônica ou mesmo aguda para os animais cultivados. Como prevenção, os níveis de segurança teóricos são estimados a partir de testes de toxicidade aguda e são tradicionalmente usados para evitar efeitos tóxicos sobre a biota. No entanto, as estimativas das concentrações dos compostos nitrogenados são realmente seguras para Farfantepenaeus paulensis? O presente estudo teve como objetivo investigar os efeitos letais e subletais da amônia, nitrito e nitrato em juvenis de camarão marinho F. paulensis com base em níveis de segurança. Cada experimento foi realizado de forma independente em tanques com capacidade de 100 L durante 30 dias. As taxas de sobrevivência e peso úmido de todos os camarões foram registrados a cada 10 dias. As concentrações testadas para amônia, nitrito e nitrato foram respectivamente: "T1/4", um quarto do nível de segurança (0,91 mg/L N-AT, 2,55 mg/L de N-NO2- e 80,7 mg/L N-NO3-); "TSL", nível de segurança (3,65 mg/L N-AT, 10,2 mg/L de N-NO2- e 323 mg/L N-NO3-); e "T2X", duas vezes o nível de segurança (7,30 mg/L N-AT, 20,4 mg/L de N-NO2- e 646 mg/L de N-NO3-). Para a criação de F. paulensis, o nível de segurança real para nitrito foi estimado em 2,55 mg/L N-NO2-. Para amônia e nitrato, concentrações recomendadas foram: <0,91 mg/L N-AT correspondente a 0,045 mg/L N-NH3 e <80,7 mg/L N-NO3-, respectivamente.
Descritores: Penaeidae/efeitos dos fármacos
Amônia/toxicidade
Nitratos/toxicidade
Nitritos/toxicidade
-Aquicultura
Penaeidae/crescimento & desenvolvimento
Penaeidae/fisiologia
Testes de Toxicidade Crônica/veterinária
Longevidade
Limites: Animais
Responsável: BR1.1 - BIREME


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Id: biblio-1001462
Autor: Pinaffi, C D; Santos, C H.
Título: Volatilization of ammonia in systems of treatment of swine manure with aquatic macrophytes / Volatilização de amônia em sistemas de tratamento de dejetos de suínos com macrófitas aquáticas
Fonte: Braz. j. biol;79(3):423-431, July-Sept. 2019. tab, graf.
Idioma: en.
Resumo: Abstract The usage of aquatic plants represents an alternative in the treatment of residues originating from swine. In these systems, one of the N removal methods is the ammonium (NH4 +) uptake and volatilization of ammonia (NH3). In this way, the objective of this work was to evaluate the volatilization rates of NH3 in waste treatment systems swine fluids (SSF) with aquatic macrophytes, as well as the concentration of NH 4+ present in the swine fluids. The experiment was carried out at Campus II/UNOESTE. The treatment systems were composed of 16 boxes of PVC and characterized as: T1 = Control sample 50% of SSF/50% of water; T2 = 50% SSF/50% water + Eichhornia crassipes (Mart.) Solms; T3 = 50% SSF/50% water + Pistia stratiotes L.; T4 = 50% SSF/50% water + Salvinia auriculata Aubl. The design was randomized blocks, with 4 treatments and 4 replicates. The hydrogen potential (pH) and the NH4 + content of the effluent were analyzed weekly, and the volatilization of NH 3 by means of collectors installed in each treatment unit. The presence of aquatic macrophytes promoted the reduction of NH4+ concentration and of the pH values ​​of swine fluids, and this resulted in the reduction of NH3 volatilization rates to the environment, with emphasis on the system with Eichhornia crassipes (Mart.) Solms, which presented the lowest rate of volatilization.

Resumo A utilização de plantas aquáticas representa uma alternativa no tratamento de resíduos oriundos da suinocultura. Nestes sistemas, uma das formas de remoção de nitrogênio (N) é a absorção de amônio (NH4+) pelas plantas, entretanto, também ocorre a volatilização de amônia (NH3). Dessa forma, o objetivo do trabalho foi avaliar as taxas de volatilização de NH3 em sistemas de tratamentos de dejetos líquidos de suínos (DLS) com macrófitas aquáticas, bem como a concentração de NH4+ presente nos dejetos. O experimento foi realizado em área de ambiente aberto no Campus II/UNOESTE. Os sistemas de tratamento foram constituídos de 16 caixas de PVC e caracterizados como: T1 = Testemunha 50% de DLS/50% de água; T2 = 50% de DLS/50% de água + Eichhornia crassipes (Mart.) Solms; T3 = 50% de DLS/50% de água + Pistia stratiotes L.; T4 = 50% de DLS/50% de água + Salvinia auriculata Aubl. O delineamento adotado foi em blocos casualizados, com 4 tratamentos e 4 repetições. Foram analisados o potencial hidrogeniônico (pH) e o teor de NH4 + do efluente semanalmente, e a volatilização de NH3 por meio de coletores instalados em cada unidade de tratamento. A presença das macrófitas aquáticas proporcionou a redução da concentração de NH4+ e dos valores de pH dos dejetos líquidos de suínos, e isto resultou na redução das taxas de volatilização de NH 3 ao meio ambiente, com destaque ao sistema com Eichhornia crassipes (Mart.) Solms, que apresentou a menor taxa de volatilização.
Descritores: Eliminação de Resíduos Líquidos
Araceae/metabolismo
Eichhornia/metabolismo
Amônia
Esterco/análise
-Suínos
Volatilização
Biodegradação Ambiental
Distribuição Aleatória
Consumo de Água (Saúde Ambiental)
Resíduos Industriais/análise
Criação de Animais Domésticos
Limites: Animais
Responsável: BR1.1 - BIREME


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Strauss, Edna
Alvares-da-Silva, Mario Reis
Mattos, Angelo Alves de
Campos, Antonio Carlos
Marroni, Cláudio Augusto
Soares, Elza Cotrim
Souto, Francisco J. Dutra
Porta, Gilda
Rosa, Heitor
Texto completo
Id: lil-621069
Autor: Bittencourt, Paulo Lisboa; Strauss, Edna; Terra, Carlos; Alvares-da-Silva, Mario Reis; Martinelli, Ana de Lourdes C; Mattos, Angelo Alves de; Campos, Antonio Carlos; Santos, Bento Cardoso dos; Oliveira, Cacilda Pedrosa de; Marroni, Caroline Possa; Lobato, Cirley M. de Oliveira; Marroni, Claudio Augusto; Almeida, Delvone Freire Gil; Parise, Edison Roberto; Soares, Elza Cotrim; Correa, Esther Buzaglo Dantas; Barros, Fábio Marinho do Rego; Silva, Fernanda M. de Queiroz; Pandullo, Fernando Luis; Carrilho, Flair José; Souto, Francisco J. Dutra; Porta, Gilda; Souza, Gilmar Amorim de; Silva, Giovani Faria; Schulz, Gustavo J; Rosa, Heitor; Coelho, Henrique Sérgio; Pereira, João Luiz; Costa, Marcelo Abrahão; Souza, Marcelo Portugal de; Capacci, Maria de Lourdes Lopes; Kondo, Mário.
Título: Encefalopatia hepática: relatório da 1ª reunião monotemática da Sociedade Brasileira de Hepatologia / Hepatic encephalopathy: report 1st monothematic meeting of the Brazilian Society
Fonte: GED gastroenterol. endosc. dig;30(Supl.1):3-33, out.-dez. 2011. ilus.
Idioma: pt.
Resumo: A encefalopatia hepática (EH) é um distúrbio funcional do sistema nervoso central (SNC) associado à insufi ciência hepática, de fisiopatologia multifatorial e complexa. Devido aos avanços no conhecimento sobre o manejo da EH na cirrose e na insuficiência hepática aguda (IHA), a diretoria da Sociedade Brasileira de Hepatologia (SBH) promoveu uma reunião monotemática acerca da fi siopatologia, diagnóstico e tratamento da EH, abordando aspectos controversos relacionados ao tema. Com a utilização de sistemática da medicina baseada em evidências, foram abordados o manejo da EH e da hipertensão intracraniana na IHA, o manejo da EH episódica na cirrose, as controvérsias no manejo da EH e a abordagem da EH mínima. O objetivo desta revisão é resumir os principais tópicos discutidos na reunião monotemática e apresentar recomendações sobre o manejo da síndrome votadas pelo painel de expertos da SBH.

Hepatic encephalopathy (HE) is a functional disorder of the central nervous system (CNS) associated with liver failure, either end-stage chronic liver disease or fulminant hepatic failure. Its pathogenesis remains complex and poorly understood. In view of recent advances in the management of HE, the Brazilian Society of Hepatology endorsed a monothematic meetingregarding HE in order to gather experts in the to discuss related data and to draw evidence-based recommendations concerning: management of HE and intracranial hypertension in FHF, treatment of episodic HE in cirrhosis, controversies in the management of EH including difficult to treat cases and diagnostic and treatment challenges for minimal HE. The purpose of this review is to summarize the lectures and recommendations made by the panel of experts of the Brazilian Society of Hepatology.
Descritores: Encefalopatia Hepática
-Fibrose
Encefalopatia Hepática/diagnóstico
Encefalopatia Hepática/fisiopatologia
Transplante de Fígado
Falência Hepática Aguda
Hipertensão Intracraniana/prevenção & controle
Amônia
Hipertensão Portal
Limites: Humanos
Responsável: BR9.1 - Biblioteca de Ciências da Saúde Profa. Susana Schimidt


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Id: biblio-974326
Autor: Fraga, Martín; Fernández, Sofía; Perelmuter, Karen; Pomiés, Nicolle; Cajarville, Cecilia; Zunino, Pablo.
Título: The use of Prevotella bryantii 3C5 for modulation of the ruminal environment in an ovine model
Fonte: Braz. j. microbiol;49(supl.1):101-106, 2018. tab, graf.
Idioma: en.
Projeto: Agencia Nacional de Investigación.
Resumo: Abstract In the Southern Hemisphere, ruminants are mostly raised in grazing systems where animals consume forage and are supplemented with low amounts of concentrates. Concentrates are usually given separately and are rapidly ingested. This practice leads to changing rumen environment conditions during the day, may alter the rumen microbial metabolism and could affect host performance. The native ruminal Prevotella bryantii strain 3C5 was administered every 48 h to wethers under experimental conditions simulating Southern-Hemisphere feeding to evaluate its potential as a rumen fermentation modulator. The inoculum potential was assessed on day 17. The ammonia nitrogen (NH3-N), volatile fatty acids and ruminal pH were monitored on a 24-h basis 19 days after the beginning of the experiment, and the microbial community structure was assessed by pyrosequencing. The administration of P. bryantii modified the fermentation products and daily pH values compared to the control. The NH3-N concentration in the rumen of treated animals was significantly higher than that of the untreated animals. Modification of the ruminal environment and fermentation pathways was achieved without altering the general structure of the microbial community or the potential methane production. P. bryantii 3C5 could be considered in potential probiotic formulations for ruminants in semi-intensive systems.
Descritores: Rúmen/microbiologia
Prevotella/metabolismo
-Rúmen/metabolismo
Rúmen/química
Ovinos
Prevotella/genética
Digestão
Ácidos Graxos Voláteis/metabolismo
Fermentação
Amônia/metabolismo
Concentração de Íons de Hidrogênio
Modelos Biológicos
Limites: Animais
Masculino
Responsável: BR1.1 - BIREME


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Id: biblio-974307
Autor: Zhang, Nan; Peng, Huijuan; Li, Yong; Yang, Wenxiu; Zou, Yuneng; Duan, Huiguo.
Título: Ammonia determines transcriptional profile of microorganisms in anaerobic digestion
Fonte: Braz. j. microbiol;49(4):770-776, Oct.-Dec. 2018. tab, graf.
Idioma: en.
Projeto: Key Project of Education Department of Sichuan Province; . Major Cultivation Project of Education Department of Sichuan Province.
Resumo: ABSTRACT Anaerobic digestion is important for the management of livestock manure with high ammonia level. Although ammonia effects on anaerobic digestion have been comprehensively studied, the molecular mechanism underlying ammonia inhibition still remains elusive. In this study, based on metatranscriptomic analysis, the transcriptional profile of microbial community in anaerobic digestion under low (1500 mg L-1) and high NH4 + (5000 mg L-1) concentrations, respectively, were revealed. The results showed that high NH4 + concentrations significantly inhibited methane production but facilitated the accumulations of volatile fatty acids. The expression of methanogenic pathway was significantly inhibited by high NH4 + concentration but most of the other pathways were not significantly affected. Furthermore, the expressions of methanogenic genes which encode acetyl-CoA decarbonylase and methyl-coenzyme M reductase were significantly inhibited by high NH4 + concentration. The inhibition of the co-expressions of the genes which encode acetyl-CoA decarbonylase was observed. Some genes involved in the pathways of aminoacyl-tRNA biosynthesis and ribosome were highly expressed under high NH4 + concentration. Consequently, the ammonia inhibition on anaerobic digestion mainly focused on methanogenic process by suppressing the expressions of genes which encode acetyl-CoA decarbonylase and methyl-coenzyme M reductase. This study improved the accuracy and depth of understanding ammonia inhibition on anaerobic digestion.
Descritores: Bactérias/genética
Bactérias/metabolismo
Amônia/metabolismo
-Bactérias/isolamento & purificação
Bactérias/classificação
Transcrição Genética
Reatores Biológicos/microbiologia
Ácidos Graxos Voláteis/metabolismo
Microbiota
Anaerobiose
Metano/metabolismo
Responsável: BR1.1 - BIREME


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Texto completo
Id: lil-788975
Autor: Orhan, Furkan.
Título: Alleviation of salt stress by halotolerant and halophilic plant growth-promoting bacteria in wheat (Triticum aestivum)
Fonte: Braz. j. microbiol;47(3):621-627, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: ABSTRACT In the current study, 18 halotolerant and halophilic bacteria have been investigated for their plant growth promoting abilities in vitro and in a hydroponic culture. The bacterial strains have been investigated for ammonia, indole-3-acetic acid and 1-aminocyclopropane-1-carboxylate-deaminase production, phosphate solubilisation and nitrogen fixation activities. Of the tested bacteria, eight were inoculated with Triticum aestivum in a hydroponic culture. The investigated bacterial strains were found to have different plant-growth promoting activities in vitro. Under salt stress (200 mM NaCl), the investigated bacterial strains significantly increased the root and shoot length and total fresh weight of the plants. The growth rates of the plants inoculated with bacterial strains ranged from 62.2% to 78.1%.Identifying of novel halophilic and halotolerant bacteria that promote plant growth can be used as alternatives for salt sensitive plants. Extensive research has been conducted on several halophilic and halotolerant bacterial strains to investigate their plant growth promoting activities. However, to the best of my knowledge, this is the first study to inoculate these bacterial strains with wheat.
Descritores: Reguladores de Crescimento de Plantas/biossíntese
Estresse Fisiológico
Bactérias/efeitos dos fármacos
Bactérias/metabolismo
Triticum/fisiologia
Triticum/microbiologia
Fenômenos Fisiológicos Bacterianos
Salinidade
-Fenótipo
Raízes de Plantas/fisiologia
Raízes de Plantas/microbiologia
Biomassa
Amônia/metabolismo
Fixação de Nitrogênio
Responsável: BR1.1 - BIREME



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