|
|
|
| Registros recuperados: 64 | |
|
| |
|
|
| Nelis, H.J.C.F.; Lavens, P.; Moens, L.; Sorgeloos, P.; Jonckheere, J.A.; Criel, G.R.J.; De Leenheer, A.P.. |
| The significance of carotenoid accumulation in crustacean eggs remains obscure, particularly because neither eggs nor female animals have been found to display specific pigment patterns in relation to reproduction. We report here the first example of carotenoids found exclusively in the ovaries, the eggs, and the hemolymph, but not in the carcass of a female, reproductively active crustacean, i.e. the brine shrimp <i>Artemia</i> . These pigments are virtually absent in males and in immature animals and disappear very rapidly in growing nauplii following hatching of encysted embryos. Within the cysts, they are preferably localized in the yolk platelets. We have identified them as mono-<i>cis</i>-canthaxanthins on the basis of their... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal reproductive organs; Brine shrimp eggs; Carotenoids; Artemia. |
| Ano: 1984 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3269 |
| |
|
| |
|
| |
|
|
| Moretti,Celso Luiz; Araújo,Alessandra L.; Marouelli,Waldir Aparecido; Silva,Washington Luiz C.. |
| Tomato (Lycopersicon esculentum Mill.) fruits, cv. Santa Clara, were harvested at the breaker stage from commercial fields in Brazlândia, Brazil, to investigate the ability of 1-methylcyclopropene (1-MCP) to retard tomato fruit ripening. Fruit without external blemishes were graded for size (diameter = 80±5 mm) and mass (m = 130±10 g), placed inside hermetically sealed boxes, and 1-MCP was applied for 12 hours (T = 22±1°C; RH = 80-85%) at four different concentrations: 0 (control), 250, 500 and 1000 mL.L-1. Fruits were held at ambient conditions (T = 23±2°C; RH 80-85%) for 2 days and then stored inside a cold room (T = 20±1°C; RH = 85-95%). Every 3 days, during a 15-day period, fruits were analyzed for firmness, total soluble solids, titratable acidity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Acidity; Color; Carotenoids; Ethylene; Firmness; Postharvest. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000400030 |
| |
|
|
| Поспелова, Н. В.; Нехорошев, М. В.. |
| Исследованы количественный и качественный состав каротиноидов в различных органах мидии Mytilus galloprovincialis Lmk. (гонадах, жабрах, гепатопанкреасе, остальных тканях), во взвешенном веществе как кормовой базе мидий и в фекалиях мидий. Показано, что гонады, жабры и остальные ткани содержат 5 основных каротиноидов, качественный состав которых определен. Гепатопанкреас содержит от 9 до 15 каротиноидов, но не все пигменты идентифицированы. Проведены предварительные балансовые исследования потока каротиноидов из пищи мидии в биоотложения. Рассчитана усвояемость каротиноидов мидией. |
| Tipo: Journal Contribution |
Palavras-chave: Mytilus galloprovincialis Lmk.; Каротиноиды; Взвешенное вещество; Усвояемость; Биоотложения мидий; Biodeposites of mussels; Carotenoids; Suspended substance Carotenoids Suspended organic matter Carotenoids http://aims.fao.org/aos/agrovoc/c_1333. |
| Ano: 2003 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/546 |
| |
|
| |
|
| |
|
|
| Поспелова, Н. В.. |
| Рассчитаны пометы суточного баланса БАВ (каротиноидов и а-токоферола) культивируемых мидий в зависимости от сезона. Все элементы баланса по БАВ имеют сходную структуру. Максимальные траты вещества приходятся на дыхание, а доля трат на соматический рост превышает долю трат на генеративный рост. Усвоение а-токоферола превышает усвоение каротиноидов, что свидетельствует о высокой потребности мидий, проходящих преднерестовую стадию, в витамине Е, как и в каротиноидах. Годовые величины эффективности использования каротиноидов на продукцию черноморских мидий (К2) изменяются от 0,03 до 0,56, для а-токоферола коэффициент К2 составил 0,01 в летний период. |
| Tipo: Journal Contribution |
Palavras-chave: Carotenoids; Carotenoids; Http://aims.fao.org/aos/agrovoc/c_1333. |
| Ano: 2007 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/613 |
| |
|
| |
|
|
| Ventosa, M.; Rodríguez, J. L.; Zerqueira, O. L.. |
| El objetivo del presente trabajo comprendió la identificación y cuantificación de los principales carotenoides presentes en la guayaba (Psidium guajava L). Se tomaron 7 muestras obtenidas en diferentes mercados de La Habana. La separación y cuantificación se realizó mediante cromatografía de columna abierta, combinada con espectrofotometría visible. El estudio de recobrado para los carotenoides presentes osciló entre 89 y 96 %. Se identificaron y cuantificaron como carotenoides mayoritarios: fitoflueno, β-caroteno y licopeno, con una concentración promedio de 2,0 µg/g; 2,1 µg/g y 44,1 µg/g, respectivamente. |
| Tipo: Journal Contribution |
Palavras-chave: Carotenoids. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/4722 |
| |
|
| |
|
| |
|
|
| Hourmant, Annick; Amara, Anis; Pouline, Patrick; Durand, Gael; Arzul, Genevieve; Quiniou, Francoise. |
| The herbicide bentazon (CASRN 25057-89-0) is extensively used in agriculture in Brittany (France) to replace atrazine. Bentazon is not readily adsorbed by soil and therefore it enters adjacent freshwater ecosystems, making its way to estuarine and marine waters areas. Information regarding its effects on marine ecosystems is scarce. Phytotoxicity assessments were conducted in the laboratory on the common diatom Chaetoceros gracilis using both the active ingredient and its formulated product (Basamais). The 3 day EC50 Using cell counts were, respectively, 150 mg/L and 60 mu g/L for bentazon active ingredient and for bentazon-formulated while cellular volume was increased. Although bentazon is known as a photosystem II inhibitor, it produced an increase of... |
| Tipo: Text |
Palavras-chave: Photosynthesis; Marine diatom; Growth; Chlorophylls; Chaetoceros gracilis; Carotenoids; Bentazon; ATP. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6637.pdf |
| |
|
|
| Partelli,Fábio Luiz; Vieira,Henrique Duarte; Viana,Alexandre Pio; Batista-Santos,Paula; Rodrigues,Ana Paula; Leitão,António Eduardo; Ramalho,José Cochicho. |
| The objective of this work was to evaluate photoprotective mechanisms related to low positive temperatures in Coffea canephora (Conilon clones 02 and 153) and C. arabica ('Catucaí' IPR 102) genotypes, involved in cold temperature tolerance. To accomplish this, one-year-old plants were successively submitted to: temperature decrease of 0.5ºC day-1, from 25/20ºC to 13/8ºC; a three-day chilling cycle at 13/4ºC; and a recovery period of 14 days (25/20ºC). During the experiment, leaf gas exchange, chlorophyll a fluorescence and leaf photosynthetic pigment content were evaluated. Total activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and ribulose-5-phosphate kinase (Ru5PK) were quantified to measure the activity of photosynthesis key... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea; Carotenoids; Photoprotection; Photosynthesis; Rubisco. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009001100006 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Brito, Giovani Greigh; Empresa Brasileira de Pesquisa Agropecuária; Sofiatti, Valdinei; Empresa Brasileira de Pesquisa Agropecuária; Brandão, Ziany Neiva; Empresa Brasileira de Pesquisa Agropecuária; Silva, Vivianny Belo; Empresa Brasileira de Pesquisa Agropecuária; Silva, Franklin Magnum; Empresa Brasileira de Pesquisa Agropecuária; Silva, Dalva Almeida; Empresa Brasileira de Pesquisa Agropecuária. |
| Analytical techniques used to extract chlorophyll from plant leaves are destructive and based on the use of organic solvents. This study proposes a non-destructive quantification of the photosynthetic pigment concentration in cotton leaves using two portable chlorophyll meters, the SPAD-502 and the CLOROFILOG 1030. After obtaining 200 leaf discs, each with an area of 113 mm2, the greening rate in each disc was determined by the average of five readings from both meters. Immediately after measurement, 5 mL of dimethyl sulfoxide (DMSO) was added, and the samples were kept in a water bath at 70ºC for 30 min. After cooling, 3 mL of the liquid extract was used for analyses by spectrophotometry at 470, 646 and 663 nm. Mathematical models were adjusted from... |
| Tipo: Pesquisa Empirica de Campo |
Palavras-chave: Fisiologia de plantas cultivadas Gossypium hirsutum; Chlorophyll; Carotenoids; Cotton 5.01.03.06-7 Gossypium hirsutum; Chlorophyll; Carotenoids; Cotton. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/10926 |
| |
| Registros recuperados: 64 | |
|
|
|
