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| Registros recuperados: 12 | |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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<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 |
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| 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 |
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| Registros recuperados: 12 | |
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