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A factorial design applied to the study of chromium toxicity on the glutathione levels of Brachiaria brizantha and Brachiaria ruziziensis seedlings. Repositório Alice
MARQUES, R.; OLIVEIRA, M. A. de L.; REIS, C. R. G. dos; KOPP, M. M.; PASSOS, L. P..
Chromium toxicity in plants is observed at multiple levels, from reduced yield, through effects on leaf and root growth, to inhibition on enzymatic activities and mutagenesis.
Tipo: Artigo de periódico Palavras-chave: Estresse oxidativo; Stress; Cromo.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1020089
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A legume genomics resource: The Chickpea Root Expressed Sequence Tag Database Electron. J. Biotechnol.
Jayashree,B; Buhariwalla,Hutokshi K; Shinde,Sanjeev; Crouch,Jonathan H.
Chickpea, a lesser-studied grain legume, is being investigated due to its taxonomic proximity with the model legume genome Medicago truncatula and its ability to endure and grow in relatively low soil water contents making it a model legume crop for the study of agronomic response to drought stress. Public databases currently contain very few sequences from chickpea associated with expression in root tissues. However, root traits are likely to be one of the most important components of drought tolerance in chickpea. Thus, we have generated a set of over 2800 chickpea expressed sequence tags (ESTs) from a library constructed after subtractive suppressive hybridization (SSH) of root tissue from two closely related chickpea genotypes possessing different...
Tipo: Journal article Palavras-chave: Cloning; Data mining; Drought avoidance; Drought tolerance; EST database; Root traits; Stress.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582005000200002
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A review on the use of Unmanned Aerial Vehicles and imaging sensors for monitoring and assessing plant stresses. Repositório Alice
BARBEDO, J. G. A..
Abstract: Unmanned aerial vehicles (UAVs) are becoming a valuable tool to collect data in a variety of contexts. Their use in agriculture is particularly suitable, as those areas are often vast, making ground scouting difficult, and sparsely populated, which means that injury and privacy risks are not as important as in urban settings. Indeed, the use of UAVs for monitoring and assessing crops, orchards, and forests has been growing steadily during the last decade, especially for the management of stresses such as water, diseases, nutrition deficiencies, and pests. This article presents a critical overview of the main advancements on the subject, focusing on the strategies that have been used to extract the information contained in the images captured...
Tipo: Artigo de periódico Palavras-chave: Imagem de sensor; Stress de planta; Drone; Crop; Orchard; Unmanned aerial systems; Agricultura de Precisão; Stress; Precision agriculture; Unmanned aerial vehicles.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1108655
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Ação central do naloxone sobre as ß-endorfinas e hormônio luteinizante (LH) em ovelhas ovariectomizadas e hipoglicêmicas. Repositório Alice
ELOY, A. M. X.; RODWAY, R..
Resumo: Com a finalidade de se investigar o efeito no Sistema Nervoso Central (SNC) do opióide antagonista naloxone hidrocloride sobre a liberação do hormônio luteinizante (LH) em ovelhas ovariectomizadas e hipoglicêmicas, utilizaram-se oito fêmeas mestiças oriundas das raças Mule e Suffolk, pesando 65,7 ± 3,6 kg. Duas semanas antes do início dos trabalhos, os animais foram canulados bilateralmente nos ventrículos. Foram feitos dois tratamentos (TI- animais não-estressados; TII- animais estressados), que foram subdivididos em três grupos (solução salina, 1 mg e 2 mg de naloxone). Os animais foram distribuídos, aleatoriamente, dentro das parcelas e foram feitas repetições com intervalo de uma semana, até que se alcançassem quatro observações por tratamento....
Tipo: Artigo de periódico Palavras-chave: Naloxona; Opióide; Brasil; LH.; Endogenous; Ovino; Ovelha; Reprodução animal; Hormônio; Stress; Sheep; Naloxone; Animal reproduction..
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/935002
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Activity of Brazilian propolis against Aeromonas hydrophila and its effect on Nile tilapia growth, hematological and non-specific immune response under bacterial infection Anais da ABC (AABC)
ORSI,RICARDO O.; SANTOS,VIVIAN G. DOS; PEZZATO,LUIZ E.; CARVALHO,PEDRO L.P.F. DE; TEIXEIRA,CAROLINE P.; FREITAS,JAKELINE M.A.; PADOVANI,CARLOS R.; SARTORI,MARIA M.P.; BARROS,MARGARIDA M..
ABSTRACT The effect of the ethanolic extract of propolis (EEP) on Aeromonas hydrophila was analyzed by determination of minimum inhibitory concentration (MIC). Then, the effects of crude propolis powder (CPP) on growth, hemato-immune parameters of the Nile tilapia, as well as its effects on resistance to A. hydrophila challenge were investigated. The CPP (0.5, 1.0, 1.5, 2.0, 2.5 and 3.0%) was added to the diet of 280 Nile tilapia (50.0 ± 5.7 g fish-1). Hemato-immune parameters were analyzed before and after the bacterial challenge. Red blood cell, hematocrit, hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), and hydrogen peroxide (H2O2) and nitric oxide (NO) were evaluated. The MIC of the EEP was 13% (v/v) with a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Health; Hematology; Immunology; Oreochromis niloticus; Propolis; Stress.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401785
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Açúcares solúveis em quatro híbridos de milho sob omissão e sob ressuprimento de fósforo. Repositório Alice
ALVES, V. M. C.; NOVAIS, R. F. de; OLIVEIRA, M. F. G. de; MOSQUIM, P. R..
Foram utilizados quatro hibridos de milho (Zea mays L.), sendo: Br 201, um hibrido duplo comercial, um hibrido duplo experimental e um hibrido simples precoce. Doze dias apos o transplantio, plantulas de quatro hibridos de milho foram submetidas a omissao de fosforo na solucao nutritiva, em casa de vegetacao, por dez dias. Num segundo experimento, plantulas com dez dias de idade foram transferidas para solucao nutritiva sem fosforo por outros dez dias, findos os quais este elemento foi readicionado. As raizes foram drenos preferenciais para acucares soluveis quando o fosforo foi omitido. Durante o ressuprimento, as folhas foram os drenos preferenciais. Ate o quarto dia de omissao de fosforo, houve decrescimo nas concentracoes de acucares soluveis totais e...
Tipo: Artigo de periódico Palavras-chave: Estresse; Maize.; Fósforo; Milho; Stress; Zea Mays.; Phosphorus..
Ano: 1995 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/477186
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Acumulación de ácido araquidónico en fosfolípidos y triglicéridos y producción de prostaglandinas con relación a estrés térmico en semilla de ostión Crassostrea gigas ArchiMer
Duran Encinas, Yazmin.
Crassostrea gigas is a marine invertebrate that inhabits the intertidal zone and therefore, is commonly exposed to multiple environmental stressors, including temperature. In recent years mass mortality events have been reported in Mexico in C. gigas associated with the increase in temperature during the summer. Organisms under thermal stress present an increase in prostaglandins (PG) production by cyclooxygenases (COX), an enzymatic route using arachidonic acid (ARA) present in the phospholipids (FL) of the cell membrane as substrate, but PG can also increase non-enzymatically by reactive oxygen species (ROS) that are produced during increased metabolism. It has been reported that some organisms exposed to stress accumulate a higher concentration of ARA...
Tipo: Text Palavras-chave: Arachidonic acid; Stress; Phospholipid; Isotope; Mollusk; Temperature; Triglyceride; Prostaglandin.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00620/73193/72387.pdf
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Adaptação de milho a solos ácidos: tolerância a toxidez de alumínio e eficiência no uso de nutrientes no programa de pesquisa da Embrapa Milho e Sorgo. Repositório Alice
PARENTONI, S. N.; GAMA, E. E. G.; SANTOS, M. X.; LOPES, M. A.; ALVES, V. M. C.; BAHIA FILHO, A. F. C.; VASCONCELOS, C. A.; MAGNAVACA, R.; PACHECO, C. A.; MEIRELLES, W. F.; GUIMARAES, P. E. O.; SILVA, A. E. da; NASPOLINI FILHO, W.; MORO, J. R.; VIANA, R. T.; PITTA, G. V. E.; FRANCA, G. E.; PURCINO, A. A. C.; SOUZA, I. R. P.; MARRIEL, I. E.; MACHADO, A. T.; CORREA, L. A.; OLIVEIRA, A. C.; PAIVA, E..
Tipo: Parte de livro Palavras-chave: Tolerancia; Variabilidade genetica; Germoplasmma; Estresse; Maize; Acid soil; Aluminium; Tolerance; Savanna; Genetic variability.; Alumínio; Cerrado; Fósforo; Nitrogênio; Milho; Stress; Toxidez; Solo Ácido; Zea Mays.; Germplasm; Nitrogen; Phosphorus; Toxicity..
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/483417
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Adaptacion del maiz a condiciones de estres por encharcamiento. Repositório Alice
MAGALHAES, P. C.; DURAES, F. O. M.; VITORINO, P. de F. P. G.; ALVES, J. D.; GAMA, E. E. G. e..
Tipo: Parte de livro Palavras-chave: Estresse; Encharcamento; Maiz; Waterlogging.; Milho; Stress; Zea Mays..
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/485258
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Adaptative responses of E-coli to marine environmental stresses. a modelling approach based on viability and dormancy concepts ArchiMer
Martin, Y; Troussellier, Marc; Bonnefont, Jl.
In an attempt to synthesize conceptual and experimental information on the behaviour of enteric bacteria in seawater, a mathematical model has been developed. This model is based on changes in intracellular metabolisable components depending an physiological responses of the cell when subjected to nutrient starvation, salinity stress and solar radiation. Following a strategy which takes into account short- and mid-term physiological adaptation and reversal processes, the cells can develop in different states: culturable (B-1), viable and definitively nonculturable (B-2), and reversibly dormant (B-3) cells. Model parameters were deduced either from original microcosm experiments, from literature data or calibration procedures. Validation of the model was...
Tipo: Text Palavras-chave: Escherichia coli; Eau de mer; Stress; États cellulaires; Modélisation; Escherichia coli; Seawater; Stress; Cellular states; Modelling.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43646/43224.pdf
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Advantages of recovery from pre-slaughter stress in tambaqui Colossoma macropomum (Cuvier 1816) agroindustry in the Amazon. Repositório Alice
MENDES, J. M.; DAIRIKI, J. K.; INOUE, L. A. K. A.; JESUS, R. S. de.
Tambaqui is the main fish species farmed in the Amazon. It is produced on industrial scale, slaughtered in the field, primarily by post-harvest asphyxia. This procedure, however, is stressful because it depletes energy reserves that should be used in postmortem metabolism, which may compromise fish meat freshness and quality. The present study compared the quality of tambaquis slaughtered by asphyxia, the conventional industrial method, and hypothermia.
Tipo: Separatas Palavras-chave: Management practices.; Peixe de Água Doce; Stress; Tambaqui.; Fish processing..
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1076060
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Advantages of recovery from pre-slaughter stress in tambaqui Colossoma macropomum (Cuvier 1816) agroindustry in the Amazon Ciênc. Tecnol. Aliment.
MENDES,Joana Maia; DAIRIKI,Jony Koji; INOUE,Luis Antonio Kioshi Aoki; JESUS,Rogério Souza de.
Abstract Tambaqui is the main fish species farmed in the Amazon. It is produced on industrial scale, slaughtered in the field, primarily by post-harvest asphyxia. This procedure, however, is stressful because it depletes energy reserves that should be used in postmortem metabolism, which may compromise fish meat freshness and quality. The present study compared the quality of tambaquis slaughtered by asphyxia, the conventional industrial method, and hypothermia. Tambaquis weighing around 1.6 kg were harvested from dugout ponds, transported to experimental tanks and allowed to recover from transport stress for 48h. Biological parameters of fish were evaluated alive post- harvest (Harv), transport (Tr) and recovery (Rc), and postmortem analysis was performed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stress; Management practices; Fish processing.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000300383
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After restraint stress, mice with high and low immobility time have a different neurochemical and behavioral profile MV&Z
Reis-Silva, Thiago; Lima, Ana Paula; Moreira, Natalia; Calefi, Atilio; Sandini, Thaísa Meira; Florio, Jorge Camilo; Bernardi, Maria Martha.
High and low immobility on the tail suspension test is a common tool for assessing antidepressant drug effects. However, those parameters might be a natural phenotype present in the mice population and could be selected through behavior evaluation without an induced-drug behavior need. High immobility has been also related to depressed-like behavior, that in humans are characterized by wide range of symptoms, such as anhedonia, anxiety and tiredness. 
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stress; Mice; Behavior; Animal.
Ano: 2016 URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/31107
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Age at weaning and the endocrine response to stress Arq. Bras. Med. Vet. Zootec.
Bueno,A.R.; Rasby,R.; Clemens,E.T..
Seventy-five Angus x MARC II crossbred heifers were used to assess the effects of age at weaning on calf performance and blood constituents. Calves were weaned at 150, 210, or 270 days of age with comparisons made to their non-weaned counterparts. Changes in blood chemistry and hematology (cortisol, glucose, T3, total proteins, packed cell volume and the differential white blood cell count) were recorded on the day of weaning (day-0), and at 2, 7, 14, and 28 days post-weaning. Calves weaned at 210 days of age presented the highest plasma cortisol, glucose, and total protein concentrations during their early post-weaning period. Calves weaned at 150 days of age had significantly lower plasma T3 values. Packed cell volume and differential white blood cell...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle; Weaning; Stress; Blood constituents.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000100001
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Agronomic performance of male-sterile and fertile maize genotypes at two plant populations Ciência Rural
Sangoi,Luís; Salvador,Ricardo.
This experiment was conducted in 1994 at Ames, Iowa, US to test whether cytoplasmic male-sterility can be used to decrease barrenness and to increase grain yield of maize at two plant populations. Four genotypes were tested: a hybrid (NK 6330) and an inbred, wifh sterile and fertile counterparts. Each genotype owas evaluated at plant populations equivalent to 25,000 and 75,000 pl. ha-1. Hybrids produced higher grain yield than inbreds at both plant populations. Gram yield was higher at 75,000 than at 25,000 pl. ha-1. No difference in gram yield, number of ears per plant, number of grains per ear, tassel length, and tassel number of branches was found between sterile and fertile counterparts of the inbred and hybrid, regardiess of plant population. Fertile...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Male-sterility; Stress; Gram yield.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781996000300006
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AN EMPIRICAL STUDY OF CLIMATE CHANGE EFFECTS AND AGRICULTURE VULNERABILITY AgEcon
Singh, Mahesh Kumar; Dobo, Erika.
This review describes that due to rapid globalization, vulnerability in different areas affects human life. With rapid population growth, securing the inherent vulnerability of this relationship, whether social, economic, or environmental, has to be central to efforts to achieving sustainable development. The vulnerability of agricultural systems varies with geographic location, time, socioeconomic conditions, and environmental resources. The capacity to mitigate and to adapt to climate-change impacts is strongly related to the future development paths. The socioeconomic and, even more so, the technological characteristics of different futures strongly affect emissions, hence the extent and pace of the impacts of climate change, as well as the capability...
Tipo: Journal Article Palavras-chave: Climate change; Vulnerability; Adaptivity; Food security; Stress; Agricultural and Food Policy; Environmental Economics and Policy; Farm Management.
Ano: 2007 URL: http://purl.umn.edu/58907
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Análise da estratégia de melhoramento do milho safra em função dos estresses hídricos para Goiás. Repositório Alice
HEINEMANN, A. B.; LUQUET, D.; DINGKUHN, M.; CHAPMAN, S..
Esse trabalho tem como objetivos: Determinar as variações geográficas e inter-anual dos padrões de seca para a cultura de milho em Goiás; Determinar o impacto dos estresses hídricos no rendimento da cultura em Goiás; Proporcionar estratégias que podem melhorar a eficiência do programa de melhoramento em Goiás.
Tipo: Parte de livro Palavras-chave: Goiás; Estress hídrico.; Cerrado; Melhoramento Genético Vegetal; Milho; Stress; Zea Mays..
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/216056
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Anesthesia and transport of fat snook Centropomus parallelus with the essential oil of Nectandra megapotamica(Spreng.) Mez Neotropical Ichthyology
Tondolo,Juliana Simoni Moraes; Amaral,Lúcio de Paula; Simões,Larissa Novaes; Garlet,Quelen Iane; Schindler,Bianca; Oliveira,Teodoro Martins; Silva,Bruno Ferreira da; Gomes,Levy de Carvalho; Baldisserotto,Bernardo; Mallmann,Carlos Augusto; Heinzmann,Berta Maria.
This study analyzed the chemical composition and anesthetic potential of essential oil (EO) of Nectandra megapotamica in fat snook (Centropomus parallelus). For the extraction of EO by hydrodistillation, leaves were separated in young (EO-Y) or old (EO-O), and the chemical composition of the EOs was determined by CG-MS. The anesthetic potential was assessed by the evaluation of induction and recovery time of anesthesia and stress response from anesthesia and transport. Three experiments were carried out: i) four different concentrations of each EO were tested to evaluate anesthesia induction and recovery time; ii) two concentrations of EO-O were tested for the evaluation of its effects on stress parameters (glucose, lactate, and Na+ and K+ plasma levels)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish; Ionoregulation; Sedation; Stress; Terpenoids.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300667
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Anesthesia of silver catfish with eugenol: time of induction, cortisol response and sensory analysis of fillet Ciência Rural
Cunha,Mauro Alves da; Zeppenfeld,Carla Cristina; Garcia,Luciano de Oliveira; Loro,Vania Lucia; Fonseca,Milene Braga da; Emanuelli,Tatiana; Veeck,Ana Paula de Lima; Copatti,Carlos Eduardo; Baldisserotto,Bernardo.
The aim of this study was to identify the time of anesthetic induction and recovery of silver catfish (Rhamdia quelen) exposed to eugenol. It was also determined the efficacy of the anesthetic as a stress reducing agent and performed a sensory analysis of the fillets from fish exposed to this substance. The silver catfish were exposed to air for 1min to carry out biometry, and blood was collected at 0, 1 and 4 hours later. Eugenol can be used in the range of 20-50mg L-1 for anesthetic induction in silver catfish, and recovery time from anesthesia was not affected by eugenol concentration. The control group showed significantly higher cortisol levels 4 hours after biometry than at time zero. Fish anesthetized with eugenol (50mg L-1) presented significantly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clove oil; Rhamdia quelen; Sedation; Stress; Taste.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001000009
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Anesthetic activity of Brazilian native plants in silver catfish (Rhamdia quelen) Neotropical Ichthyology
Silva,Lenise de Lima; Silva,Daniela Thomas da; Garlet,Quelen Iane; Cunha,Mauro Alves; Mallmann,Carlos Augusto; Baldisserotto,Bernardo; Longhi,Solon Jonas; Pereira,Ana Maria Soares; Heinzmann,Berta Maria.
There is an increasing demand for inexpensive and safe anesthetics that can reduce fish stress caused by some procedures such as capture and handling. In this context, the present study evaluated the potential of essential oils (EO) of three Brazilian native plants (Hesperozygis ringens, Lippia sidoides and Ocotea acutifolia) as anesthetics for the silver catfish - Rhamdia quelen. Moreover, an analysis was made of the chemical composition of these oils and their influence on stress parameter. EO of H. ringens and O. acutifolia were effective as anesthetics, without behavioral side effects. EO of O. acutifolia (150 µL L-1) promoted an increase in blood glucose level. Regarding to the composition, pulegone accounts for 96.63% of the EO of H. ringens, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Essential oil; Hesperozygis ringens; Lippia sidoides; Ocotea acutifolia; Stress.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200443
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