Results 31 to 40 of about 4,193 (178)

Transcriptomic Changes during Previtellogenic and Vitellogenic Stages of Ovarian Development in Wreckfish (Hāpuku), Polyprion oxygeneios (Perciformes)

Fishes, 2019
‘Wreckfish’ a collective of species belonging to the family Polyprionidae, are an important commercial fishery and have significant aquaculture potential.
Matthew J Wylie, Jane E Symonds, Alvin N Setiawan, Glen W Irvine, Hui Liu, Abigail Elizur, P Mark Lokman   +6 more
doaj   +1 more source

Culex quinquefasciatus vitellogenesis: morphological and biochemical aspects

Memorias do Instituto Oswaldo Cruz, 2010
The vitellogenic process in Culex quinquefasciatus, which is triggered by a blood meal, involves the synthesis, distribution and storage of the nutrients necessary for embryo development. The fat body of an adult female Cx.
André F Cardoso, Renato L Cres, Alexandre S Moura, Fábio de Almeida, A Tania Bijovsky   +4 more
doaj   +1 more source

Vitellogenesis and choriogenesis in fishes [PDF]

Fisheries Science, 2016
In studies of sex discrimination in fish in the early 1900s, a specific antigen in the blood of gravid females was identified using immunological methods. At present, this specific antigen is known as vitellogenin, the major precursor of egg yolk protein that is synthesized in the female liver and is secreted into the blood to be incorporated into the ...
Hara, Akihiko, Hiramatsu, Naoshi, Fujita, Toshiaki   +2 more
openaire   +1 more source

Ultrastructural study of oogenesis in Marphysa sanguinea (Annelida: Polychaeta: Eunicida) from the Lagoon of Tunis

Scientia Marina, 2014
Ultrastructural features of oogenesis of the iteroparous and long lived eunicid polychaete Marphysa sanguinea (Montagu, 1815) from the Lagoon of Tunis were studied using both light and transmission electron microscopy methods.
Monia Elbarhoumi, Patrick Scaps, Chakib Djediat, Fathia Zghal   +3 more
doaj   +1 more source

Histochemical characteristics of the vitellogenic oocytes of the bluefin tuna, Thunnus thynnus L.

Ciencias Marinas, 2002
 Very little information is available with respect to dynamic aspects of oocyte development and to yolk composition of tuna species. Since histological approaches can offer considerable information about the ovarian development of fish, and because ...
C Sarasquete, ML González-De-Canales, C Piñuela, JA Muñoz-Cueto, C Rendón, EL Mañanós, FJ Rodríguez-Gómez, E Pascual   +7 more
doaj   +1 more source

Transcriptomic analysis reveals yolk accumulation mechanism from the hepatopancreas to ovary in the pacific white shrimp Litopenaeus vannamei

Frontiers in Marine Science, 2022
The Pacific white shrimp Litopenaeus vannamei is an economically important penaeid species worldwide. Under farming conditions, the full ovarian maturation of L.
Zhi Li, Minyu Zhou, Yao Ruan, Xiaoli Chen, Chunhua Ren, Hao Yang, Xin Zhang, Jinshang Liu, Huo Li, Lvping Zhang, Chaoqun Hu, Ting Chen, Xugan Wu   +12 more
doaj   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

Developmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher, Antonia Weberling, Erin J. Vance, Natalia A. Shylo, Katherine Starr, Zoe B. Griffin, Hannah Wilson, Melainia McClain, Florian Hollfelder, Suzannah A. Williams, Thomas J. Sanger, Richard R. Behringer, Paul A. Trainor   +12 more
wiley   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves, Priscila M. O. Muniz Cunha, Shênia Patrícia Corrêa Novo, Lorena Oliveira Souza Soares, Tatiana Dillenburg Saint‐Pierre, Fábio Veríssimo Correia, André Luís de Sá Salomão, Rachel Ann Hauser‐Davis, Enrico Mendes Saggioro   +8 more
wiley   +1 more source

Mechanisms for type-II vitellogenesis-inhibiting hormone suppression of vitellogenin transcription in shrimp hepatopancreas: Crosstalk of GC/cGMP pathway with different MAPK-dependent cascades. [PDF]

PLoS ONE, 2018
Vitellogenesis is the process of yolk formation via accumulating vitellin (Vn) with nutrients in the oocytes. Expression of vitellogenin (Vg), the precursor of Vn, is one of the indicators for the start of vitellogenesis.
Ting Chen, Chunhua Ren, Xiao Jiang, Lvping Zhang, Hongmei Li, Wen Huang, Chaoqun Hu   +6 more
doaj   +1 more source

Vitellogenesis of diphyllobothriidean cestodes (Platyhelminthes)

Comptes Rendus. Biologies, 2015
The recently erected cestode order Diphyllobothriidea is unique among all tapeworm orders in that its species infect all major groups of tetrapods, including man. In the present paper, the vitellogenesis of representatives of all three currently recognized families of this order was evaluated, based on ultrastructural (transmission
Aneta, Yoneva, Tomáš, Scholz, Magdaléna, Bruňanská, Roman, Kuchta   +3 more
openaire   +2 more sources