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Showing 1 to 17 of 17 for “"Chemoreception"”.
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Investigating Central Chemoreception-based Biomarkers of Sudden Unexpected Death in Epilepsy (SUDEP)
… is a critical risk factor for SUDEP. Central chemoreception initiates adaptive cardio-respiratory and autoresuscitation responses to HH changes, and is impaired in epilepsy and SUDEP. We have reported that the Kcna1-/- (KO) model of SUDEP, have increased GTCs, apnea, and chronic intermittent …
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Chemoreception of sugars and amino acids in female fourth and sixth instars of the spruce budworm, Choristoneura fumiferana (Clem.)
Gustatory responses to several sugars and l-amino acids in two age groups of Choristoneura fumiferana (Clem.) larvae were studied using electrophysiological methods. Sensitivity to the stimuli was assessed by stimulating the medial and lateral styloconic sensilla of the galea. Of the twelve common …
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Evidence of Non-Strike Induced Chemosensory Searching by Eastern Copperheads (Agkistrodon Contortrix) During Cicada Predation
… foraging methods similar to non-strike induced chemoreception when specifically predating upon cicada nymphs during seasonal emergences. I hypothesized that A. contortrix actively forage using chemoreception without envenomation, and that tongue flick rates would be higher during foraging …
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A Comparison of Olfactory Organ Development and Feeding Behavior in Larval Fathead Minnows, Pimephales promelas Rafinesque
… the ability of larvae to survive after hatching. Chemoreception is used in the location of food, avoidance of predators, and for intraspecific communication. Furthermore, some studies have shown the olfactory system to be adversely impacted by environmental contaminants and low pH. Since the …
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Ocean acidification and its effects upon fitness in nereidid polychaetes
… in the aqueous environment indicates that chemoreception disruption can potentially have dramatic consequences. Data show that if ocean acidification continues as predicted, marine chemoreception will have to adapt rapidly with potentially profound consequences for marine life and animal …
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Electrophysiological and morphological analyses in two species of insects, Protophormia terraenovae and Ceratitis capitata
Chemoreception represents one of the most important sensory modality to guarantee animals survival, and it plays a fundamental role also in an insect life. In fact, the detection of food sources and proper sites of ovoposition, the identification of conspecifics for mating or aggregation, the …
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The Effect of Acute Low pH on Feeding and Locomotor Activity of Larval Fathead Minnows, Pimephales promelas
… eliminated. pH 4.5 appeared to strongly inhibit chemoreception; the data also suggest close coupling of chemoreception and mechanoreception in feeding. While it is evident that prey capture and feeding success in larval fish is complex, these data show clear impact of pH on feeding performance. …
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Dilution acidosis : the effects of hyperosmolality on acid-base balance and ventilation
… trend towards an alkalosis, then central chemoreception, if based on intracellular pH, is unlikely to be affected by hyperosmolality. Acute hyperosmolality also increased the ventilatory threshold to acute hypercapnia, reaffirming a depression of peripheral chemoreception. However, the …
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Exploring the Interface Between Macroorganisms and Microorganisms: Biochemical, Ecological, and Evolutionary Contexts
… crab, including dactyls that are important for chemoreception and the buccal cavity that is used to remove microorganisms from sand particles, and blue crab egg mass fluids that protect egg masses from fouling through embryo development. </p><p>This dissertation explores organismal interactions …
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Herbivorous insects interaction with entomopathogenic fungi (based on species of Hymenoptera and Lepidoptera orders) /
… been estimated insects (Plodia interpunctella) chemoreception on fungi infected and uninfected substrates. For the first time shown that insect not only distinguishes the substrate for eggs laying, but also evaluates its quality. It was found for the first time that 4-oxoisophorone can affect …
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Behavioral and Metabolic Responses of the Southern Red-Backed Salamander (Plethodon Serratus) to Predatory Stimuli: Influence of Body Size
… red-backed salamanders (Plethodon serratus), so chemoreception may be important for predator detection. I conducted experiments to examine the effect of chemical stimuli from predatory ringneck snakes on the foraging behavior and metabolic rates of P. serratus. Individuals were exposed to …
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Role of labellar and ovipositor taste sensilla of Drosophila suzukii in host recognition: a morpho-functional and behavioural approach.
… and/or gustatory systems, are also implicated. Chemoreception is vital for all animals: by means of chemosensory organs, animals can locate mates, suitable oviposition sites and even discriminate palatable and beneficial foods from toxic and harmful substances in their environment. Aim of this …
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Molecular evolution of a superfamily of chemoreceptors in Musca domestica and Ceratitis capitata
… in Drosophila species, less is known about chemoreception in other dipterans. Generalist species of Drosophila retain higher diversity of chemoreceptor genes as compared to the rapid loss characteristic of specialists, but the same may not be true of other dipterans. Here the odorant …
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Modeling Post Stroke Respiratory Dysfunction, Apneas and Cognitive Decline
… neurovascular unit and an essential component of chemoreception. Respiratory dysfunction and brainstem astrocytosis was reproduced in mice that underwent intracerebroventricular injections of TGF-b. Suggesting the TGF-b signaling pathway contributes to the onset of astrogliosis and respiratory …
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A NOVEL ROLE FOR CYTOCHROME P450 G 35 (CYP4G35) IN ODOR PROCESSING IN AEDES AEGYPTI MOSQUITOES
… environments. Three primary appendages mediate chemoreception, esp. olfaction in mosquitoes: antennae, maxillary palps, and proboscis. These appendages have sensilla hairs covering their exterior structure. The sensilla hair houses many chemoreceptors, including odorant, ionotropic, and …
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Dopamine-Beta-Hydroxylase and Norepinephrine Transporter Immunoreactivity in Rat Taste Buds
<p>Of the handful of neurotransmitters modulating taste response, norepinephrine (NE) may be the least understood. Although the physiological role of NE has been tested, it is still unclear whether the rat taste bud may serve as an endogenous source of neurotransmitter or if it must be taken up …
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Employing High Probability Gene Choice Elements to Understand Singular Odorant Receptor Expression
… up to a trillion different odor mixtures. For chemoreception to have such a high discriminatory power, would require a diverse population of cells dedicated for odor detection. These detector cells are the olfactory sensory neurons (OSNs), which express odorant receptors (ORs) that bind to …