Consulta: subjectFacets:"Early development"
Registros recuperados: 8
Data/hora: 03/06/2024 03:34:21

BRS 334RR: cultivar de soja transgênica: alta produtividade com precocidade.
Provedor de dados: 14
Autores: CARNEIRO, G. E. de S.; PIPOLO, A. E.; MELO, C. L. P. de.
Alta produtividade com precocidade! BRS 334RR: grupo de maturidade, regioes edafoclimáticas de adaptação, época de semeadura, reação a doenças, características médias.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Planta transgênica; Precocidade vegetal; Soybeans; Early development; Transgenic plants.
Ano: 2012
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/921734

Toxic effects of leachates from plastic pearl-farming gear on embryo-larval development in the pearl oyster Pinctada margaritifera
Provedor de dados: 5
Autores: Gardon, Tony; Huvet, Arnaud; Paul-pont, Ika; Cassone, Anne-laure; Koua, Manaarii Sham; Soyez, Claude; Jezequel, Ronan; Receveur, Justine; Le Moullac, Gilles.
Pearl-farming leads to significant plastic pollution in French Polynesia (FP) as the end of life of most farming gear is currently poorly managed. Plastic debris released into the aquatic environment accumulates, with potentially detrimental effects on the lagoon ecosystem and pearl oyster Pinctada margaritifera, a species of ecological, commercial and social value. Here, we tested the effects of leachates from new (N) and aged (A) plastic pearl-farming gear (spat collector and synthetic rope) obtained after 24 h and 120 h incubation, on the embryo-larval development of the pearl oyster using an in-vitro assay. Embryos were exposed for 24 h and 48 h to a negative control (0) and the leachate from 0.1, 1, 10 and 100 g of plastic. L−1. After 24 h exposure to...
Tipo: Text
Palavras-chave: Aquaculture; Synthetic materials; Hazardous chemicals; Toxicity; Marine bivalve; Early development.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00627/73917/73257.pdf

Dynamic epimarks in sex-related genes predict gonad phenotype in the European sea bass, a fish with mixed genetic and environmental sex determination
Provedor de dados: 5
Autores: Anastasiadi, Dafni; Vandeputte, Marc; Sanchez-baizan, Nuria; Allal, Francois; Piferrer, Francesc.
The integration of genomic and environmental influences into methylation patterns to bring about a phenotype is of central interest in developmental epigenetics, but many details are still unclear. The sex ratios of the species used here, the European sea bass, are determined by genetic and temperature influences. We created four families from parents known to produce offspring with different sex ratios, exposed larvae to masculinizing temperatures and examined, in juvenile gonads, the DNA methylation of seven genes related to sexual development by a targeted sequencing approach. The genes most affected by both genetics and environment were cyp19a1a and dmrt1, with contrasting sex-specific methylation and temperature responses. The relationship between...
Tipo: Text
Palavras-chave: Early development; Environmental temperature; DNA methylation; Sex determination; Aromatase; Cyp19a1a; Dmrt1; Epigenetic marks; DNA methylation threshold; Epigenetic inheritance.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00470/58123/61657.pdf

Embryonic development and larval stages of Steindachneridion parahybae (Siluriformes: Pimelodidae): implications for the conservation and rearing of this endangered Neotropical species
Provedor de dados: 83
Autores: Honji,Renato M.; Tolussi,Carlos E.; Mello,Paulo H.; Caneppele,Danilo; Moreira,Renata G.
Steindachneridion parahybae is a freshwater catfish endemic to the Paraíba do Sul River and is classified as an endangered Neotropical species. An increasing number of conservation biologists are incorporating morphological and physiological research data to help conservation managers in rescue these endangered species. This study investigated the embryonic and larval development of S. parahybae in captivity, with emphasis in major events during the ontogeny of S. parahybae. Broodstocks were artificially induced to reproduce, and the extrusion occurred 200-255 degree-hours after hormonal induction at 24°C. Larval ontogeny was evaluated every 10 minutes under microscopic/stereomicroscopic using fresh eggs samples. The main embryogenic development stages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial reproduction; Early development; Eggs; Larvae; Surubim do Paraíba.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200007

Influence of spawning procedure on gametes fertilization success in Salminus hilarii Valenciennes, 1850 (Teleostei: Characidae): Implications for the conservation of this species
Provedor de dados: 83
Autores: Honji,Renato M.; Mello,Paulo H.; Araújo,Bruno C.; Rodrigues-Filho,Jandyr A.; Hilsdorf,Alexandre W. S.; Moreira,Renata G.
Artificial reproduction and gamete fertilization were evaluated in Salminus hilarii wild and domesticated broodstocks. Wild and domesticated broodstocks were artificially induced to reproduction using a carp pituitary treatment. Four groups were considered: Group 1 (G1), fish caught in the wild maintained for three years in the same conditions as the domesticated broodstocks and spawned naturally; Group 2 (G2), broodstock born and raised in captivity and spawned naturally; Group 3 (G3), wild broodstocks, which were manually stripped for gamete collection and dry fertilization; and Group 4 (G4), domesticated males and females, also manually stripped. Oocytes, eggs, and larvae were sampled at different time intervals throughout embryonic development. Yolk...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Early development; Growth; Reproduction; Tabarana.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200014

Alkaloids and acetogenins in Annonaceae development: biological considerations
Provedor de dados: 94
Autores: González-Esquinca,Alma Rosa; De-La-Cruz-Chacón,Iván; Castro-Moreno,Marisol; Orozco-Castillo,José Agustín; Riley- Saldaña,Christian Anabi.
Chemical studies of the plant family Annonaceae have intensified in the last several decades due to the discovery of annonaceous molecules with medicinal potential (e.g., benzylisoquinoline alkaloids and acetogenins). Approximately 500 alkaloids have been identified in 138 Annonaceae species in 43 genera. In addition, until 2004, 593 annonaceous acetogenins (ACGs) had been identified, from 51 species in 13 genera.This suggests that plants from this family allocate important resources to the biosynthesis of these compounds. Despite the diversity of these molecules, their biological roles, including their physiological and/or ecological functions, are not well understood. In this study, it was provided new data describing the variety and distribution of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Early development; Secondary metabolism; Ecological functions; Phenology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500001

Studies on the reproductive and developmental biology of Cichlasoma dimerus (Percifomes, Cichlidae)
Provedor de dados: 47
Autores: Pandolfi,Matías; Cánepa,Maximiliano M.; Meijide,Fernando J.; Alonso,Felipe; Rey Vázquez,Graciela; Maggese,M. Cristina; Vissio,Paula G.
Many characteristics of the South American teleost fish Cichlasoma dimerus (body size, easy breeding, undemanding maintenance) make it amenable to laboratory studies. In the last years, many of the fundamental aspects of its reproductive and developmental biology have been addressed in our laboratory. Rather recently, the immunohistochemical localization of pituitary hormones involved in reproduction and in background color adaptation has been described in both adult and developing individuals, and the role of FSH in ovarian differentiation has been established. These findings have been correlated with mapping of some of their brain-derived controlling hormones. The latter include brain-derived gonadotropins which were shown to be active in vitro in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reproduction; Early development; Neuroendocrinology; Brain; Pituitary; Teleosts.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452009000100001

Morphological development of larvae and juveniles of  Prochilodus argenteus
Provedor de dados: 65
Autores: Guimarães,Irũ Menezes; Dias Filho,Vinícius Augusto; Silva,Ana Helena Gomes da; Santos,Rafael Silva; Severi,William.
ABSTRACT:  Prochilodus argenteus is an endemic fish species from the São Francisco River basin that is of high economic and environmental importance. The present study aimed to contribute with information to the taxonomic identification of  larvae and juveniles of this species. Larvae , obtained from induced spawning of wild animals, were reared in ponds. Individuals were collected daily and classified into larval stages or juvenile phase. Morphological descriptions and morphometric measurements were performed, together with a piece wise linear regression analysis of the body proportions throughout the development process. Individuals in the preflexion stage had a standard length (SL) of 4.48 to 6.64mm, long to moderate body (BH/SL), small to moderate head...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Curimatã; Early development; Morphometry; São Francisco River.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400402