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Showing 1 to 20 of 29 for “"post-embryonic"”.
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Characterization of Transcriptional and Post-transcriptional Regulation of lin-42/Period During Post-embryonic Development of C. elegans
… and developmental timing functions. During post-embryonic larval development, cyclic expression and function of lin-42 controls stage-specific and reiterative cell fate choices of a subset of epidermal stem cells called seam cells. We are studying lin-42 regulation of seam cell fate during …
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Studies on the Differentiation of the Golgi Apparatus in Nerve Cells of the Chick During Embryonic and Post-Embryonic Development
Made available in DSpace on 2014-12-04T22:46:18Z (GMT). No. of bitstreams: 1 6402854.pdf: 4400791 bytes, checksum: 4298d2cdd9ff59b2f3550bfbadfe5242 (MD5) Previous issue date: 1963
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Bionomia e etologia do Mocis latipes (Guenee, 1852) (Lepidoptera-Noctuidae)
Data are given on the post-embryonic development under experimental conditions, of Mocis latipes (Guenée, 1852) ,a highly polyphagous species, with marked preference for Gramineas. Data are also given on its ethology.
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The role of embryonic risk cues on the life history, morphology and behaviour of the wood frog Lithobates sylvaticus
… event. Both cues are detected during the embryonic and post embryonic stages. Alarm cues can be produced in the embryonic stage and can affect the morphology and hatching time of embryos. However, the way in which alarm cue exposure at this early stage impacts post-embryonic behaviour is …
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Changes in gall bladder bile throughout development in Rana catesbeiana
… of the following throughout the course of post-embryonic development: the change in GI tract length and weight; the relative surfactant activity of the bile; the change in major bile pigments. The most rapid and profound morphological and physiological transitions occur during the period of …
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Characterising the function and evolution of enhancers in Drosophila
… and enhancer evolution. I identified a novel post-embryonic enhancer of the Hox gene Ubx, which provides new insights into how Hox genes are integrated into post-embryonic GRNs that determine fine-scale adult morphology. To help understand the cis-regulatory logic of enhancers, I focussed on a …
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Three Generations, One Future: A Systematic Analysis on Nicotine's Effect across generations in C. elegans.
… effect of nicotine exposed during post-embryonic stages has not been reported. On the molecular level, an increasing number of popular findings that show the involvements of certain microRNAs in physiological processes have expanded to include response to nicotine. Nevertheless, a …
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Elucidation of the Role of miR-184 in the Development and Maintenance of the Drosophila Melanogaster Nervous System
… other aspects of gene expression, by acting as post-transcriptional repressors of their messengerRNA (mRNA) targets. miR-184 is a highly conserved miRNA gene expressed in the Drosophila nervous system throughout development; and has been shown to target key regulators of differentiation, …
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The Cellular And Genetic Mechanisms Underlying Morphological Diversity Of Insects
… assign the importance of allometric changes at embryonic and post-embryonic levels with regard to the final adult morphology. We found that most of the differential T3 leg growth occurs during embryogenesis in <i> Acheta</i>, while it is post-embryonic allometry that contributes the most to size …
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Nutritional Control of L1 Arrest and Recovery in Caenorhabditis elegans by Insulin-like Peptides and Signaling
… availability. Nutrient availability governs post-embryonic development in Caenorhabditis elegans: larvae that hatch in the absence of food do not initiate post-embryonic development but enter "L1 arrest" (or "L1 diapause") and can survive starvation for weeks, while rapidly resume normal …
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Regulatory consequences of mRNA Poly(A)-Tail length changes
… gastrulation, and there was no coupling in the post-embryonic contexts we examined. We thus demonstrated that poly(A)-tail length is a major determinant of translational efficiency during early animal development and discovered a broadly conserved developmental switch in translational control. …
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Transcriptional profiling of Drosophila larval ventral nervous system hemilineages
… neuronal stem cells (neuroblasts) during the post-embryonic phase of neurogenesis. Most of the post-embryonic neurons derive from type I neuroblasts, which undergo repeated asymmetric divisions to produce a series of ganglion mother cells (GMCs). Each GMC then divides once resulting in two …
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Unraveling The Molecular Mechanisms Of Insect Diversity
… In the cockroach Periplaneta americana, the embryonic abolishment of the hox gene Sex combs reduced (Scr) disrupts this ancient boundary, and results in the formation of an ectopic, supernumerary segment between the head and thorax. Interestingly, while Scr mutants Tribiolium yield an …
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Analysing The Effects Of Loss Of Sin3 In Drosophila Melanogaster
… we show that SIN3 is not only required for embryonic viability but also for post-embryonic development. Genetic analysis suggests that the different isoforms of SIN3 may regulate unique sets of genes during development. The developmental lethality occurring due to ubiquitous knock down of …
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DNA polymerase beta inhibitor pamoic acid : toxicity to metakaryotic human cancer stem cells (HT-29)
… nuclei, or metakaryotic stem cells, are the post-embryonic stem cells of the fetal organs from about the fourth week post conception through physical maturity. These metakaryotic stem cells, after acquiring necessary genetic, and possibly other events, are also the stem cells of precancerous, …
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The Genetic Basis Of Natural Variation In The Timing Of Vegetative Phase Change In Arabidopsis Thaliana
… impact their form and function as they grow. Post-embryonic vegetative growth is characterized by two distinct developmental transitions: vegetative and reproductive phase changes. While natural variation in the reproductive transition is well studied, the transition between juvenile and adult …
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Development of the neonatal rat as a model for Sudden Infant Death Syndrome: cardiorespiratory effects of ethanol
… between arterial and transcutaneous CO2. 3) On post embryonic (PE) days 30 & 31, pups exhibited higher heart rates and responded more slowly to and recovered slower from CO2 challenge versus older ages tested. 4) On PE days 30 and 31, pup respiratory rate was unchanged in response to 10 % …
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Mechanisms of axial polarity modification during postembryonic development of the basal bilaterian Convolutriloba macropyga
… of asexual reproduction that involve dramatic postembryonic modification of their anterior-posterior (AP) axis. The acoel species <em>Convolutriloba macropyga</em> reproduces through a reversed polarity budding process in which offspring develop from two posterior budding sites with a complete …
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Nutritional regulation of neural stem cell reactivation in Drosophila melanogaster
… is tightly coupled to nutrient availability. Post-embryonic NSCs in Drosophila only exit quiescence when larvae are fed a diet containing essential amino acids. The fat body, a functional homologue of the liver and adipose tissue, acts as a systemic nutrient sensor. Existing evidence from both …
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