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| Registros recuperados: 53 | |
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| Klein,Fátima Rosane S.; Reis,Andressa; Kleinowski,Alítcia M.; Telles,Renata T.; Amarante,Luciano do; Peters,José A.; Braga,Eugenia Jacira B.. |
| ABSTRACT Ultraviolet B radiation has been described as a potential elicitor agent of the synthesis of secondary metabolites in plants. Thus, the present study aimed to investigate the production of betalains and total flavonoids, as well as the antioxidant activity, of Alternanthera sessilis, A. brasiliana, A. tenella and A. philoxeroides exposed to different periods of UV-B radiation (280-315 nm). Plants of these four species were exposed to UV-B radiation for 0, 2, 4, 6, and 8 hours, which amounts to 0, 10, 20, 30, and 40 J cm−2 of radiation, respectively. Significant increases in betacyanin and betaxanthin levels were observed in A. sessilis and A. brasiliana during the period of UV-B exposure, while no differences were observed for the others species.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abiotic elicitor; Antioxidants; Flavonoids; Medicinal plants; Pigments; Ultraviolet radiation. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000400615 |
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| Garcia, Ana Flávia Quiles Marques; Universidade Estadual de Maringá; Murakami, Alice Eiko; Universidade Estadual de Maringá; Furlan, Antonio Cláudio; Universidade Estadual de Maringá; Massuda, Ely Mitie; Centro Universitario de Maringá; Potença, Alexandra; Universidade Estadual de Maringá; Rojas, Ivan Camilo Ospina; Universidade Estadual de Maringá. |
| O presente trabalho teve como objetivo avaliar os efeitos da utilização de milheto como alimento energético, nas rações de poedeiras sobre o desempenho e qualidade de ovos, bem como realizar uma avaliação econômica a fim de verificar a viabilidade da utilização de milheto. Foram utilizadas 336 poedeiras comerciais, distribuídas em um delineamento inteiramente casualizado com seis tratamentos, sete repetições e oito aves por unidade experimental. Os tratamentos consistiram em uma ração-testemunha à base de milho e farelo de soja e as demais com 20, 40, 60, 80 e 100% de substituição ao milho. A inclusão do milheto não influenciou o consumo de ração, porcentagem de postura, conversão alimentar e a qualidade interna e externa dos ovos. Para o índice de... |
| Tipo: Pesquisa de campo |
Palavras-chave: 5.04.03.00-1 desempenho produtivo; Pigmentantes; Qualidade do ovo Nutrição e Alimentação Animal Performance; Pigments; Egg quality. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/9946 |
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| Shourie,Abhilasha; Tomar,Pushpa; Srivastava,Deepika; Chauhan,Rahul. |
| Lycopersicon esculentum respond to UV-B by enhanced synthesis of flavonoid quercetin, a strong antioxidant that helps the plants to well acclimatize to UV-B stress. Three weeks old plants of L. esculentum were subjected to acute UV-B irradiation for 20, 40 and 60 minutes daily until 28 days and analyzed for the morphological and biochemical changes. UV-B exposure for 40 and 60 minutes considerably affected the growth and biomass of L. esculentum. The leaves were deformed, developed chlorosis and abscised early as compared to the unexposed plants. Biomass declined by 35% and total chlorophyll decreased by 24.7% due to disintegration of chloroplasts. Enhancement was seen in the content of carotenoids, anthocyanins and total flavonoids by 15, 33.3 and 22.8%,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: UV-B; Lycopersicon esculentum; Quercetin; Biomass; Pigments; Anthocyanins. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000300002 |
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| Strahsburger,Erwin; Zapata,Felipe; Pedroso,Inti; Fuentes,Derie; Tapia,Paz; Ponce,Raul; Valdes,Jorge. |
| ABSTRACT In this report, we present a draft genome of 2,886,173 bp of an Exiguobacterium aurantiacum strain PN47 isolate from the sediment of a saline pond named “Salar del Huasco” in the Altiplano in the North of Chile. Strain PN47 encodes adaptive characteristics enabling survival in extreme environmental conditions of high heavy metal and salt concentrations and high alkalinity. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alkaline; Arsenic; Heavy metals; Pigments. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000100007 |
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| Shweta,Mishra; Agrawal,S.B.. |
| The impact of supplemental UV-B (sUV-B) radiation and heavy metals: Cd (68 µmol.kg-1 soil) and Ni (68 µmol.kg-1 soil) singly and in combination was studied on photosynthetic and non-photosynthetic pigments, metabolites, enzyme activities, biomass accumulation and the net primary productivity of spinach (Spinacia oleracea L. var. All Green), a common leafy vegetable plant. Both the stresses individually and in combination resulted in the reduction of photosynthetic pigments, ascorbic acid, and catalase activity, whereas a reverse trend was observed for anthocyanin, flavonoids and proline content, lipid peroxidation and peroxidase activity. The interactive effects of both the stresses were, however, less than additive. Combined treatment of sUV-B + Cd was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spinaicia oleracea; Biomass; Cadmium; Enzymes; Nickel; Pigments; Ultraviolet-B. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000200007 |
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| Galati,Vanessa Cury; Muniz,Ana Carolina Corrêa; Guimarães,João Emmanuel Ribeiro; Inestroza-Lizardo,Carlos Orlando; Mattiuz,Claudia Machado Fabrino; Mattiuz,Ben-Hur. |
| ABSTRACT Cut flowers deteriorate quickly and require postharvest technologies to increase their durability, which is usually around 8 days. Due to the scarce information related to postharvest physiology of Alstroemeria cut flowers, this study aimed to verify the best dose of 1-methylcyclopropene (1-MCP) to the postharvest conservation of inflorescences of Alstroemeria cv. Ajax, considering the factors associated with floral senescence and loss of the decorative life. The stems were submitted to four doses of 1-MCP (0; 100; 250; 500 ppb), then placed in containers with distilled water and stored at room temperature (22 ºC). The treatments were performed in triplicate containing three stems per replicate. The evaluations were performed every three days for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethylene; Longevity; Pigments; Enzyme activity.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000200181 |
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| Dessimoni-Pinto,Nísia Andrade Villela; Moreira,Walkiria Alves; Cardoso,Leandro de Morais; Pantoja,Lílian Araújo. |
| The peel of jaboticaba is attractive regarding its nutritional, functional and sensory aspects. However, its use for consumption is still restricted due to the need of technological development in order to obtain processed preparations for its inclusion in the human diet. The purpose of this study was to produce jelly using the peel of jaboticaba and to characterize it chemically and sensorially. Diferent formulations were prepared, all with 50% of sugar and with different proportions of peel, pulp and pectin. The formulations, which were tested for preference, were the following: F1a (80% of peel, 20% of pulp and 0.5% of pectin) and F3b (50% of peel, 50% pulp and 1.0% of pectin). These formulations showed chemical composition of 216.44 mg phenolic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peel of jaboticaba; Use of technology; Jelly; Acceptability; Pigments; Myrciaria. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000400006 |
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| Rezende,Renata Alves Lara Silva; Rodrigues,Filipe Almendagna; Soares,Joyce Dória Rodrigues; Silveira,Helbert Rezende de Oliveira; Pasqual,Moacir; Dias,Gabrielen de Maria Gomes. |
| ABSTRACT: Salt stress is one of several major abiotic stresses that affect plant growth and development, and there are many evidences that silicon can ameliorate the injuries caused by high salinity. This study presents the results of an assay concerning: (1) the effect of in vitro NaCl-induced salt stress in cape gooseberry plants and (2) the possible mitigating effect of silicon in saline conditions. For that, nodal segments were inoculated in Murashige and Skoog (MS) medium under salinity (0.5 and 1.0% NaCl) with different silicic acid concentrations (0, 0.5 and 1.0g L-1). Phytotechnical characteristics, photosynthetic pigments content, and leaf anatomy were evaluated after 30 days. Shoot length, root length, number of leaves and buds, fresh and dry... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physalis peruviana L.; Abiotic stress; Salinity; Pigments; Anatomy.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100401 |
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| Ayala-Astorga,Gloria Irma; Alcaraz-Meléndez,Lilia. |
| We evaluated the effects of saline stress on soluble proteins, lipid peroxidation (TBAR), chlorophyll a, chlorophyll b, β-carotene, violaxanthin, and proline in Paulownia imperialis and Paulownia fortunei plants grown in vitro. When the propagated plants reached a determined size, they were transferred aseptically to WPM culture medium containing different sodium chloride concentrations (0, 20, 40, 60, 80, and 160 mM) and were sampled at 15 and 30 days. Proline content was determined at 30 days after transfer only. Protein concentration significantly decreased with the highest salt levels in P. imperialis compared to controls in which no sodium chloride was added. In both P. imperialis and P. fortunei, lipid peroxidation significantly increased at... |
| Tipo: Journal article |
Palavras-chave: Paulownia fortunei; Paulownia imperialis; Pigments; Proline; Proteins; Salinity; TBARS; Tissue culture. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500013 |
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| Registros recuperados: 53 | |
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