Loading...
  • late larval
  • Mid to late larval development includes the period (larval stage 3 and 4), when JH titres differ between castes [ 7 ], and so if is difficult to determine if these gene expression changes are due to RJ exposure, or the action of JH. (biomedcentral.com)
  • At the late larval stage, Tt.dachshund , Tt.Limpet , and Tt.Mef2 showed expression in nearly all mesoderm cells, while all other genes were localized to specific regions of the mesoderm. (biomedcentral.com)
  • survival
  • Larval survival and larval mass after feeding on transgenic leaves, however, was comparable to non-transformed controls. (biologists.org)
  • In order to understand how linalool production may relate to H. armigera fitness, we compare adult oviposition and larval survival on transgenic Nicotiana tabacum (tobacco) with increased ( S )-linalool in vegetative and floral tissues with that on non-transformed controls. (biologists.org)
  • Larval oyster survival and growth rate were positively correlated with 18:1n-7 and 20:1n-7, in storage lipids (SL), and negatively related to 14:0, 18:1n-9, 20:1n-9, 20:4n-6 and trans-22-dehydrocholesterol in membrane lipids (ML). Surprisingly, only the essential fatty acid 20:5n-3 in SL was correlated positively with larval survival. (ifremer.fr)
  • Previous studies on crown-of-thorns starfish, Acanthaster planci, have primarily focused on effects of water quality and nutrient availability on larval growth and survival, while the role of maternal nutrition on reproduction and larval development has been overlooked. (duhnnae.com)
  • instar
  • Excretory losses, however, constitute only an insignificant part of the entire energy budget (2 to 5 % of A). In the cumulative budgets, all parameters (F, G, R, U) increase from the first to the last larval instar. (awi.de)
  • Drosophila
  • We also identified a number of mutants defective in Drosophila SPP and found that SPP has an essential role during larval development. (genetics.org)
  • The cellular response to the Drosophila BMP 2/4-like ligand Decapentaplegic (DPP) serves as one of the best-studied models for understanding the long-range control of tissue growth and pattern formation during animal development. (biologists.org)
  • Here, we report the identification of larval translucida ( ltl ), a novel target of BMP activity in Drosophila . (biologists.org)
  • The homology of the mesoderm among bilaterians is supported by the deployment of a conserved set of transcription factors in the specification and differentiation of the mesoderm in the classical model systems of the mouse, Drosophila , and Caenorhabditis elegans , where the molecular basis for mesoderm development has been investigated in the greatest detail [ 3 - 6 ]. (biomedcentral.com)
  • species
  • 1966. The development of Conopeum seurati (Canu), and some other species of membraniporine Polyzoa. (springer.com)
  • In general, there is an optimal temperature for the development of a species within a favoured range, where mortality is especially low and development time short. (hindawi.com)
  • Larval life histories are not known for any species of the genus Orthotheres. (brillonline.com)
  • As guideline for further breeding engagement with Theloderma representatives in an international scale, based on the species T. corticale as husbandry analogue, we further oppose larval development, captive reproduction and husbandry management both achieved under tropical conditions at the Amphibian breeding station of the Institute of Ecology and Biological Resources in Hanoi (Vietnam), and in Europe, at the amphibian breeding unit at Cologne Zoo (Germany). (oalib.com)
  • In this investigation, the development of different larval pigment patterns in two species of tailed amphibians is used as a model system for a comparative morphogenetic analysis. (indigo.ca)
  • However, the specific gene regulatory network architecture underlying mesoderm development differs in each of these species, reflecting the significant differences between them in modes of gastrulation, which forms the endomesoderm, and the character and organization of mesodermal derivatives [ 6 , 16 ]. (biomedcentral.com)
  • Not all Ambulacrarians develop through a larval stage, however, and recent comparisons of regulatory gene expression have revealed that orthologs of many genes and signaling molecules involved in vertebrate neural patterning are expressed in spatially restricted domains along the anterior-posterior (AP) axis of the direct developing vermiform hemichordate juvenile Saccoglossus kowalevskii [ 13 , 14 ], a species that does not develop via a tornaria larva. (beds.ac.uk)
  • Here, we describe the first zoeal stage of the species-which is morphologically advanced-and provide evidence for its lecithotrophy in development. (exeter.ac.uk)
  • early
  • In such instances the animal is freed by various means from the necessity of passing its early phases of development in open water. (biologists.org)
  • The early larval development of Membranipora seurati (Canu) and Electra crustulenta (Pallas), Polyzoa. (springer.com)
  • Our data raise the unexpected hypothesis that a primary role of GSH in early D. melanogaster larval development is ecdysteroid biosynthesis, independent from the antioxidant role of GSH. (genetics.org)
  • This study examines the influence of short periods of heating in the field on larval development and on mortality with the model system Galeruca tanaceti L. (Coleoptera: Chrysomelidae), an early season feeder, that hatches at low springtime temperatures. (hindawi.com)
  • The marine clam, Tivela mactroides ,from Caño Sagua beach,Venezuela,was spawned and reared under laboratory conditions to monitor its early development.Spawning was spontaneous but in some cases it had to be induced by the additon of eggs and sperm.After fertilization,the embryonic development occurred at 5 hr approximately. (scielo.sa.cr)
  • Development of larval and early juvenile penpoint gunnel (Apodichthys flavidus) (family: Pholidae). (thefreelibrary.com)
  • The technology uses a bath immersion to administer a Morpholino oligomer (MO) against Deadend (Dnd), an essential protein for early germ cell development in fish. (umd.edu)
  • Localized expression domains during gastrulation and larval development evidence early regionalization of the mesoderm and provide a basis for hypotheses regarding the molecular regulation underlying the complex system of musculature observed in the larva. (biomedcentral.com)
  • To examine the effects of maternal nutrition on oocyte size and early larval development in A. planci, we pre-conditioned females for 60 days on alternative diets of preferred coral prey Acropora abrotanoides versus non-preferred coral prey Porites rus and compared resulting gametes and progeny to those produced by females that were starved over the same period. (duhnnae.com)
  • microscopic
  • 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. (scielo.br)
  • Decapoda
  • The planktonic larval instars (zoea I, II, megalopa) of the spider crab Hyas araneus (Crustacea, Decapoda, Brachyura) were reared under constant conditions (12°C) in the laboratory. (awi.de)
  • Anger K. , Schreibber D. , Montú M. 1995 "Abbreviated larval development of Sesarma curacaoense (Rathbun, 1897) (Decapoda: Grapsidae) reared in the laboratory. (brillonline.com)
  • Bolaños J. , Cuesta J. A. , Hernndez G. , Hernndez J. , Felder D. L. 2004 "Abbreviated larval development of Tunicotheres moseri (Rathbun, 1918) (Decapoda, Pinnotheridae), a rare case of parental care among brachyuran crabs. (brillonline.com)
  • eggs
  • The extruded oocytes showed an average diameter of 1.10 ± 0.10 mm, and after fertilization and hydration of eggs, the average diameter of eggs increased to about 1.90 ± 0.60 mm, characterized by a large perivitelline space that persisted up to embryo development, the double chorion, and the poles (animal and vegetative). (scielo.br)
  • The objective of this study was to evaluate the effects of several different commercial disinfectants on the embryogenic development of Ascaris suum eggs. (parasitol.kr)
  • At 3 weeks of incubation after exposure, ethanol, methanol, and chlorohexidin treatments did not affect the larval development of A. suum eggs, regardless of their concentration and treatment time. (parasitol.kr)
  • METHODS
  • Although in the last two decades knowledge on sole culture has notably increased, especially in Southern Europe, its progress was restricted due to lack of methods to control reproduction, improve larval quality and increase juvenile disease resistance. (sigmaaldrich.com)
  • morphological
  • Expression of multiple mesodermal factors in the archenteron wall during gastrulation supports previous morphological observations that this region gives rise to larval mesoderm. (biomedcentral.com)
  • waters
  • A graphical model is presented which predicts larval occurrence and settlement in the field (Helgoland waters, North Sea). (awi.de)
  • duration
  • Experiments have been carried out on the duration of larval development of H. araneus-, in relation to temperature, food quality, and individual variation. (awi.de)
  • growth
  • When D'Arcy Wentworth Thompson's On Growth and Form was published 100 years ago, it raised the question of how biological forms arise during development and across evolution. (biologists.org)
  • Rates of feeding (F), growth (G), respiration (R), and ammonia excretion (U) were measured in short intervals of time, and their changes during larval development were expressed as functions of age within each moult cycle. (awi.de)
  • During the larval phase, cannibalism, heterogeneous larval growth and photophobia were also observed. (scielo.br)
  • captivity
  • 2013 ) studied the complete sexual maturation and gonad development of hybrid TGGG in captivity, and indicated that hybrid TGGG started to mature as female and male at approximately 9.0 and 11.0 kg, respectively. (springer.com)
  • settlement
  • Embryology of the ectoproct Conopeum tenuissimum was followed from egg extrusion to three days and colony development from settlement to about seven days (20 generations of zooids). (springer.com)
  • pathways
  • Addition of an insulin receptor inhibitor resulted in metacestode killing, prevented metacestode development from parasite stem cells, and impaired the activation of insulin signalling pathways through host insulin. (biomedcentral.com)
  • embryos
  • We have developed a technology to efficiently produce infertile fish by disrupting primordial germ cell development in fish embryos. (umd.edu)
  • Our findings therefore extend, for the first time, evidence of a conserved axial pattering to echinoderm embryos exhibiting maximal indirect development. (beds.ac.uk)
  • changes
  • Anger, K. and Harms, J. (1989): Changes in the energy budget of a decapod crustacean from the North Sea during planktonic larval development , Memorias do III Encontro Brasileiro de Plancton Caioba, (PR) 5-9 de dezembro de 1988, Universiade Federal do Parana, Curitiba, Parana, Brazil, pp. (awi.de)
  • Significant changes in energy partitioning were found both during individual moult cycles and between different larval instars. (awi.de)
  • found
  • Larval dorsal and pelvic spines were formed at 6 days AH coupled with dynamic feeding activity, as more food was found in the digestive tract. (springer.com)
  • life
  • Among the Amphibia there are numerous examples of the suppression to a varying extent of a larval stage in the life-history. (biologists.org)
  • time
  • These herbivores may profit by a fast development and high pupal weight due to the readily assimilated nitrogen at this time of the year [ 3 ]. (hindawi.com)