Consulta: subjectFacets:"Pigmentation"
Registros recuperados: 12
Data/hora: 01/06/2024 05:21:31

Особенности формирования хроматофорного комплекса камбалы калкан Psetta maxima var. maeotica в онтогенезе в зависимости от пищевой цепи.
Provedor de dados: 13
Autores: Ханайченко, А. Н.; Битюкова, Ю. Е.
Сравнение влияния пищевой цепи на развитие пигментации (хроматофорного комплекса) у камбалы калкан Psetta maxima var. maeotica проводили от начала экзогенного питания до начала метаморфоза (3 - 18 сут) и от начала до последней стадии метаморфоза (18 – 60 сут). Группы калкана (в двух повторностях, из однородных партий икры) содержали в разных пищевых цепях: либо в типично морской, состоящей из культивируемых каланоидных копепод, Acartia tonsa (группа MZ), либо в искусственной, состоящей из солоноватоводных коловраток Brachionus plicatilis и метанауплиев Artemia  franciscana (группа BZ). Для аппроксимации  жирнокислотного состава применяли единую схему насыщения, в результате которой у всех кормовых организмов были близкие значения содержания и соотношения...
Tipo: Journal Contribution
Palavras-chave: Калкан; Пищевая цепь; Пигментация; Меланофор; Липофор; Гуанофор; Дифференциация; Black Sea turbot; Food web; Pigmentation; Melanophore; Lipophore; Guanophore; Differentiation; Харчовий ланцюг; Пігментація; Меланофор; Ліпофор; Гуанофор; Діфференціація.
Ano: 2007
URL: http://repository.ibss.org.ua/dspace/handle/99011/849

Аномалии пигментации черноморской камбалы калкана Psetta (= Scophthalmus) maxima maeotica (Pleuronectiformes: Scophthalmidae).
Provedor de dados: 13
Autores: Ханайченко, А. Н.; Гирагосов, В. Е.; Ельников, Д. В.; Данилюк, О. Н.
Впервые проведен анализ аномалий пигментации черноморской камбалы калкана Psetta (= Scophthalmus) maxima maeotica из района юго-западного шельфа Крымского п-ова. Аномалии отнесены к 2 типам: первичной и вторичной пигментации. Предложено систематизировать вариации первичной пигментации калкана и других камбалообразных по 6 категориям в зависимости от степени гипермеланизации правой стороны тела. Полная пигментация правой стороны тела калкана сопряжена с аномалиями миграции глаза. Относительное количество аномально пигментированных особей во всех проанализированных уловах 2005 – 2007 гг. составило 9.8 %. Обнаруженные аномалии предположительно индуцируются нарушением состава пищи во время поздней планктонной фазы развития калкана и закрепляются необратимо в...
Tipo: Journal Contribution
Palavras-chave: Черноморская камбала калкан; Аномалии; Пигментация; Миграция глаза; Black Sea turbot; Anomalies; Pigmentation; Eye migration; Чорноморська камбала калкан; Аномалії; Пігментація; Міграція ока.
Ano: 2008
URL: http://repository.ibss.org.ua/dspace/handle/99011/815

Stades pigmentaires de la civelle Anguilla anguilla (L.) dans les estuaires de la Loire et de la Vilaine
Provedor de dados: 5
Autores: Grellier, Patrick; Huet, Jerome; Desaunay, Yves.
Ce catalogue illustre et complète le travail de référence de ELIE et al. (1982). Il vise à venir en aide aux biologistes amenés à comparer leurs descriptions qualitatives et quantitatives des échantillons de civelles.
Tipo: Text
Palavras-chave: Pigmentation; Stades Larvaires; Civelle.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00085/19614/17254.pdf

Identification of genes associated with shell color in the black-lipped pearl oyster, Pinctada margaritifera
Provedor de dados: 5
Autores: Lemer, Sarah; Saulnier, Denis; Gueguen, Yannick; Planes, Serge.
Background: Color polymorphism in the nacre of pteriomorphian bivalves is of great interest for the pearl culture industry. The nacreous layer of the Polynesian black-lipped pearl oyster Pinctada margaritifera exhibits a large array of color variation among individuals including reflections of blue, green, yellow and pink in all possible gradients. Although the heritability of nacre color variation patterns has been demonstrated by experimental crossing, little is known about the genes involved in these patterns. In this study, we identify a set of genes differentially expressed among extreme color phenotypes of P. margaritifera using a suppressive and subtractive hybridization (SSH) method comparing black phenotypes with full and half albino individuals....
Tipo: Text
Palavras-chave: Differential expression; Biomineralization; Nacre; Pearl; Pigmentation; Albino.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00275/38627/37167.pdf

Tracing key genes associated with the Pinctada margaritifera albino phenotype from juvenile to cultured pearl harvest stages using multiple whole transcriptome sequencing
Provedor de dados: 5
Autores: Auffret, Pauline; Le Luyer, Jeremy; Sham Koua, Manaarii; Quillien, Virgile; Ky, Chin-long.
Background Albino mutations are commonly observed in the animal kingdom, including in bivalves. In the black-lipped pearl oyster Pinctada margaritifera, albino specimens are characterized by total or partial absence of colouration resulting in typical white shell phenotype expression. The relationship of shell colour with resulting cultured pearl colour is of great economic interest in P. margaritifera, on which a pearl industry is based. Hence, the albino phenotype provides a useful way to examine the molecular mechanisms underlying pigmentation. Results Whole transcriptome RNA-sequencing analysis comparing albino and black wild-type phenotypes at three stages over the culture cycle of P. margaritifera revealed a total of 1606, 798 and 187 differentially...
Tipo: Text
Palavras-chave: Pinctada margaritifera; Albinism; Pigmentation; RNA-seq; Notch signaling pathway; Tyrosinase; Biomineralization.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00652/76420/77477.pdf

Environmentally Driven Color Variation in the Pearl Oyster Pinctada margaritifera var. cumingii (Linnaeus, 1758) Is Associated With Differential Methylation of CpGs in Pigment- and Biomineralization-Related Genes
Provedor de dados: 5
Autores: Stenger, Pierre-louis; Ky, Chin-long; Reisser, Celine; Cosseau, Céline; Grunau, Christoph; Mege, Mickael; Planes, Serge; Vidal-dupiol, Jeremie.
Today, it is common knowledge that environmental factors can change the color of many animals. Studies have shown that the molecular mechanisms underlying such modifications could involve epigenetic factors. Since 2013, the pearl oyster Pinctada margaritifera var. cumingii has become a biological model for questions on color expression and variation in Mollusca. A previous study reported color plasticity in response to water depth variation, specifically a general darkening of the nacre color at greater depth. However, the molecular mechanisms behind this plasticity are still unknown. In this paper, we investigate the possible implication of epigenetic factors controlling shell color variation through a depth variation experiment associated with a DNA...
Tipo: Text
Palavras-chave: Pearl oyster; Environmental pressure; Depth; Color change; Pigmentation; DNA methylation; Methylome characterization.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00685/79667/82436.pdf

Plagiolepis obscuriscapa Santschi, 1923, a junior synonym of Plagiolepis pygmaea (Latreille, 1798) (Hymenoptera: Formicidae: Formicinae) and the use of pigmentation as discriminating character in ant taxonomy
Provedor de dados: 16
Autores: Boer, P.
The synonymy of Plagiolepis obscuriscapa Santschi, 1923 with P. pygmaea (Latreille, 1798) is proposed. The use of pigmentation as only discriminating character in ant taxonomy is criticised.
Tipo: Article / Letter to the editor
Palavras-chave: Formicidae; Formicinae; Plagiolepis obscuriscapa; Plagiolepis pygmaea; Pigmentation; Taxonomy; Synonyms; 42.75.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/292110

New species of Cyphocharax (Characiformes: Curimatidae) from the upper rio Negro, Amazon basin
Provedor de dados: 83
Autores: Melo,Bruno F.; Vari,Richard P.
A new species of Cyphocharax, Curimatidae, apparently endemic to the blackwater upper rio Negro of the Amazon basin in northern Brazil, is described.The new species is readily distinguished from its congeners by the presence of a distinctly longitudinally elongate, posteriorly vertically expanding patch of dark pigmentation along the midlateral surface of the caudal peduncle, with the patch extending from the base of the middle caudal-fin rays anteriorly past the vertical through the posterior terminus of the adipose fin. The new species additionally differs from all congeners in details of body and fin pigmentation and meristic and morphometric ratios. Evidence for the assignment of the species to Cyphocharax and the occurrence of other species of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Blackwater; Neotropical fish; Pigmentation; Taxonomy.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000200327

Effect of dietary supplementation of marigold pigment on immunity, skin and meat color, and growth performance of broiler chickens
Provedor de dados: 89
Autores: Rajput,N; Naeem,M; Ali,S; Rui,Y; Tian,W.
Marigold flower extract, a natural pigment, was used to determine its effect on carcass and skin pigmentation, immunity and growth performance of broiler chickens. Two hundred and forty 1-day-old Arbor Acres broiler chicks were randomly distributed into four treatment groups with six replicates in a randomized block design. Birds were fed basal diet for 42 d with or without supplementation of marigold flower extract at various concentrations, i.e., 0 (MG0, control), 100 (MG100), 150 (MG150) and 200 (MG200) mg/kg of feed, respectively. Feed intake and live body weight were weekly recorded. Carcass and shank color, and antibody titers against Newcastle and Influenza viruses were measured. Results showed that marigold flower extract significantly (p&lt;0.05)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibody titer; Broiler performance; Marigold extract; Pigmentation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000400009

The Effects of Different Types of Antioxidants (Se, Vitamin E and Carotenoids) in Broiler Diets on the Growth Performance, Skin Pigmentation and Liver and Plasma Antioxidant Concentrations
Provedor de dados: 89
Autores: Karadas,F; Erdoğan,S; Kor,D; Oto,G; Uluman,M.
Abstract This study investigated the effects of the addition of different antioxidants to broiler diets on their live performance, liver antioxidant composition and concentrations, immune response, and meat and skin color. A total of 945 three-day-old Ross 308 broiler chicks of both genders were randomly allocated to one of nine dietary treatments (n=105), with three replicates 35 chicks per pen, as follows: T1: control (commercially available corn-and soybean-based broiler diet); T2: selenium (control+0.5 mg/kg Sel-PlexTMSe yeast); T3: vitamin E (control+200 mg/kg Kavimix-E-50 a-tocopherol acetate); T4: lutein (control+100 mg/kg 5% Lutein Beads XB); T5: lycopene (control+100 mg/kg 5% Lyco Beads XB);T6: canthaxanthin (control+25 mg/kg 10%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Antioxidants; Carotenoids; Performance; Immune response; Pigmentation.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100101

Ablação ocular no camarão Macrobrachium rosenbergii (De Man) (Crustacea, Decapoda, Palaemonidae): efeitos sobre a reprodução, pigmentação epidérmica e atividade alimentar
Provedor de dados: 104
Autores: Santos,Marcel José Martins dos; Pinheiro,Marcelo Antônio Amaro.
This study analyze the consequences of unilateral and bilateral ablation based on ovigerous percentage, consecutive spawns, and secondary effects of the surgical process in the females of Macrobrachium rosenbergii (De Man, 1879). Two experiments were carried out with four and seven months old females in intermolt stage. Each experiment was comprised of control, unilateral and bilateral ablation. Eyestalk ablation was done with a bistoury with a topic hot cauterization followed by application of antibiotic pomades. The animals were maintained at constant temperature (28 ± 1,05ºC) and photoperiod of 12L: 12D within fibercement boxes with sandy bottom and biological filter. Females were observed once a day during fourteen weeks, registering gonadal condition,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Eyestalk ablation; Reproduction; Pigmentation; Feeding activity; Prawn.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000300012

Fruit development, pigmentation and biochemical properties of wax apple as affected by localized Application of GA3 under field conditions
Provedor de dados: 52
Autores: Khandaker,Mohammad Moneruzzaman; Boyce,Amru Nasrulhaq; Osman,Normaniza; Golam,Faruq; Rahman,M. Motior; Sofian-Azirun,M.
This study investigated the effects of gibberellin (GA3) on the fruit development, pigmentation and biochemical properties of wax apple. The wax apple trees were rubbing treated with 0, 20, 50 and 100 mgGA3/l under field conditions. The localized application (rubbing) of 50 mg GA3/l significantly increased the fruit set, fruit length and diameter, color development, weight and yieldcompared to the control. In addition, GA3 treatments significantly reduced the fruit drop. With regard to the fruit quality, 50 mg/l GA3 treatment increased the juice content, K+, TSS, total sugar and sugar acid ratio of wax apple fruits. In addition, higher vitamin C, phenol, flavonoid, anthocyanin, carotene content, PAL and antioxidant activities were recorded in the treated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fruit development; Pigmentation; Quality; GA3; Wax apple.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000100002