Histological effects on the kidney,spleen, and liver of Nile tilapia Oreochromis niloticus fed different concentrations of probiotic Lactobacillus plantarum     

Ruiz  Maria Luiza  Owatari  Marco Shizuo  Yamashita  Marcela Maya  Ferrarezi  José Victor Saffadi  Garcia  Patricia  Cardoso  Lucas  Martins  Maurício Laterça  Mouriño  José Luiz Pedreira 《Tropical animal health and production》2020,52(1):167-176

Tropical Animal Health and Production - The aims of this study were to evaluate the inclusion of different concentrations of Lactobacillus plantarum in Nile tilapia diet and to verify histological...  相似文献   

Serum biochemistry of the Arrau turtle (Podocnemis expansa): Frozen analyte stability and the effects of long-term storage     

Fabricio Camargo  Nadjanaira B. Abrão  Thawanne D. Queiroz  Emmanuel Arhnold  Luciana B. M. Araújo  Danieli B. Martins 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2020,49(1):42-47

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Biofortification of soybean grains with foliar application of Li sources     

Antonio Carlos Martins dos Santos  Kleycianne Ribeiro Marques  Larissa Urzêdo Rodrigues  Álvaro José Gomes de Faria  Vitor L. Nascimento 《Journal of plant nutrition》2013,36(19):2522-2531

Abstract

Biofortification of soybean grains with lithium (Li) is a strategy to improve a food with high social acceptance, in order to promote health benefits. The aim of this work was to evaluate the development of plants and the production of biofortified soybeans with two Li sources. The experiment was conducted in a completely randomized design with five replicates. Ten treatments were obtained in a 2x5 factorial scheme, comprising two sources of Li (LiOH - Li hydroxide and Li₂SO₄ - Li sulfate) and five doses (0, 30, 60, 90 and 120?mg kg^?1) in stages V4 and R1. The supply of Li promoted significant effects (p?≤?0.05) on the morphology, yield components and nutritional status of soybean plants. The highest grain yield was obtained with the use of Li₂SO₄ at the estimated dose of 45.7?mg kg^?1. The plants accumulated Li between 8.00 and 11.20?mg kg ^?1, respectively, with the use of Li₂SO₄ and LiOH. In the grains, the highest concentrations of Li were obtained with the application of 120?mg kg^?1. Li₂SO₄ and LiOH are good sources for biofortification of soybean grains.  相似文献   

Effect of root temperature on carob growth: Nitrate versus ammonium nutrition     

Cristina Cruz  S. Herman Lips  Maria Amelia Martins‐Loucao 《Journal of plant nutrition》2013,36(8):1517-1530

The response of carob (Ceratonia siliqua L.) seedlings grown at different root zone temperatures affected by nitrate and ammonium nutrition was studied. When root temperatures ranged from 10 to 35°C, ammonium‐fed plants were significantly larger than nitrate‐fed plants. Ammonium‐fed plants displayed toxicity symptoms and were much smaller at 40°C root temperature in comparison with the nitrate‐fed plants grown at the same root temperature. Root/shoot ratio slightly increase with root temperature in ammonium‐ and nitrate‐fed plants in a similar way, and shoot demand per root unit decreased with root temperature between 15 and 25°C. There was a general increase in net photosynthesis with root temperature, though nitrate‐fed plants were more sensitive to low and ammonium‐fed plants to high temperatures. Increasing the root temperature of ammonium fed plants from 10 to 40°C leads to a 30% increase in the amount of photosynthates sent to the roots. The presence of ammonium resulted in the distribution of newly fixed carbon away from carbohydrates and into nitrogen compounds. Potassium, calcium, and nitrogen content of the plants also increased with increasing root temperature.  相似文献   

Effect of Copper on Antioxidant Enzyme Activities and Mineral Nutrition of White Lupin Plants Grown in Nutrient Solution     

Miguel P. Mourato  Luisa Louro Martins  Ann Cuypers 《Journal of plant nutrition》2013,36(11):1882-1900

We analyzed the effect of different copper (Cu) concentrations (0.10, 0.15, 0.20 and 0.35 mM) and time (1 day to 9 days) on several growth and biochemical parameters of roots and shoots of white lupin plants (Lupinus albus cv Estoril) grown in nutrient solution. A significant decrease in leaf fresh weight and leaf area was detected. Copper accumulated in the roots, and an impairment of nutrient translocation was only observed after six days at the highest Cu concentrations applied. A transient increase in the activity of polyphenoloxidase (EC 1.10.3.1) enforces a role for lignification as a defense strategy under enhanced Cu levels. The activities of several antioxidative enzymes were enhanced after Cu application. Our results indicate that Lupinus albus cv ‘Estoril’ is a rather resistant plant that can cope with moderate concentrations of copper, mostly by controlling up to a certain point, the uptake of excessive amounts of this metal.  相似文献   

Race identification of Fusarium oxysporum f. sp. lycopersici isolates obtained from tomato plants in Nova Friburgo,Brazil     

de Oliveira  Cristiana Maia  do Carmo  Margarida Gorete Ferreira  Ferreira  Leandro Martins  Höfte  Monica  do Amaral Sobrinho  Nelson Moura Brasil 《European journal of plant pathology / European Foundation for Plant Pathology》2021,161(2):273-287

European Journal of Plant Pathology - Fusarium wilt caused by Fusarium oxysporum f. sp. lycopersici (FOL) is one of the main diseases affecting tomato plants. Three races (races 1, 2 and 3) of the...  相似文献   

甘蓝型油菜高含油量隐性胞核雄性不育两型系的选育   总被引：2，自引：0，他引：2  

李厚英  陈德珍  陈松  夏海乾  罗光智  余忠刚  苏跃 《中国油料作物学报》2003,25(4):122-124

采用复合回交方法,选育出甘蓝型油菜双低隐性核不育两型系。双低不育系121AB、123AB、175AB、932AB、933AB等表现高含油量、产量高等性状,品质优良。其中175AB、932AB、933AB含油量42．7％～44．0％,蛋白质含量24．2％～25．3％。组配的德油系列优质杂交油菜新组合在比较试验中均比对照种油研七号增产,增产率9．98％～27．34％,表现出较大的增产潜力。  相似文献   

Aeration strategy for controlling grain storage based on simulation and on real data acquisition   总被引：1，自引：0，他引：1  

Daniela de Carvalho Lopes  Jos Helvecio Martins  Adílio Flauzino Lacerda Filho  Evandro de Castro Melo  Paulo Marcos de Barros Monteiro  Daniel Maral de Queiroz 《Computers and Electronics in Agriculture》2008,63(2):140-146

In this work a new control strategy for grain aeration systems was proposed. This strategy was implemented in a software package called AERO and relates four conditions which depend on real time data acquisition and on the process simulation. The main advantage of AERO controller is that it can be used in different geographic regions, during different seasons and with different aeration systems, automatically adjusting its set points. The objectives of AERO controller are to equalize the temperatures inside the bin, to cool the grain mass whenever is possible and to maintain the moisture content under safe conditions. The results showed that the proposed strategy is efficient to achieve these objectives. Moreover, significant energy saving has been achieved with the AERO controller.  相似文献   

The Comet assay for detection of DNA damage in canine sperm          下载免费PDF全文

AF Pereira  P Borges  A Fontbonne  L Cardoso  I Gaivão  A Martins‐Bessa 《Reproduction in domestic animals》2017,52(6):1149-1152

Sperm DNA integrity is a fundamental prerequisite in fertilization and embryo development. Among DNA integrity tests, the Comet assay is an accurate and sensitive test for the detection of sperm oxidative damage. The aim of this work was to evaluate sperm oxidative damage using the Comet assay and to study the correlation between Comet and routine assays for the evaluation of semen quality. Dogs were divided in two groups: group A (n = 6), comprising dogs with abnormal spermiogram, that is astheno‐, terato‐ or oligoasthenoteratozoospermic (OAT); and group B (n = 8), comprising normospermic dogs. The distribution of sperm oxidative damage was significantly different between the two groups (p = .001): group A—median: 31.55%, interquartile range (IQR): 30.18–38.01; group B—median: 0.90%, IQR: 0.65–1.96. The correlation between oxidative damage and abnormal morphology was high (r = .846; p < .001). There was a negative correlation between progressive motility and oxidative damage (r = ?.792; p = .001). Basal and oxidative DNA damage of spermatozoa are increased in dogs with non‐normospermic semen. In conclusion, and considering the elevated correlation with classical tests of sperm quality, the Comet assay has ample potential for clinical and research purposes in dogs.  相似文献   

Virus-specific cellular blastogenesis and interleukin-2 production in swine after recovery from African swine fever   总被引：1，自引：0，他引：1  

T Scholl  J K Lunney  C A Mebus  E Duffy  C L Martins 《American journal of veterinary research》1989,50(10):1781-1786

Animals recovered from viral diseases represent an important model to study the host cellular and humoral immune responses to the etiologic agents. This is particularly important for African swine fever virus (ASFV) infections in which antibodies have little or no virus-neutralizing effect. Pigs surviving experimental infection with the naturally occurring low-virulent, nonhemadsorbing ASFV/NH/P68 (NHV) isolate did, however, exhibit virus-specific T-cell activities, as measured by a variety of assays. A strong virus-induced, antigen-specific blastogenic response was observed only with blood mononuclear cells (BMC) from ASF-recovered swine, whereas cells from recovered and naive swine responded similarly to the mitogens concanavalin A and phytohemagglutinin. The ASFV-induced blastogenesis was dependent on virus dose and on the presence of adherent cells. Blood mononuclear cells cultured with antigenically related hemadsorbing ASFV isolates of different virulence characteristics, the highly virulent L60 isolate and moderately virulent DRII isolate, exhibited a similar magnitude of blastogenesis to cells infected with the low-virulent NHV isolate. Virus-infected cells proved to be an efficient inducer of interleukin-2 (IL-2) activity to cells from recovered swine, but not from naive swine, whereas T-cell-specific lectins induced production of similar amounts of IL-2 activity from cells of naive and recovered swine. Correlated with the appearance of virus-induced IL-2 activity in the culture supernatant was the induction of promiscuous killing in cells exposed to prolonged (7 days) virus stimulation.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献