Bibliografías temáticas / Chemotactisme / Artículos de revistas

Artículos de revistas sobre el tema "Chemotactisme"

Siga este enlace para ver otros tipos de publicaciones sobre el tema: Chemotactisme.
Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 11 de febrero de 2022

Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros

Elija tipo de fuente:

Consulte los 19 mejores artículos de revistas para su investigación sobre el tema "Chemotactisme".

Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.

También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.

Explore artículos de revistas sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.

1

Sitvarin, Michael I., Shira D. Gordon, George W. Uetz y Ann L. Rypstra. "The wolf spider Pardosa milvina detects predator threat level using only vibratory cues". Behaviour 153, n.º 2 (2016): 159–73. http://dx.doi.org/10.1163/1568539x-00003332.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
Predators may inadvertently signal their presence and threat level by way of signals in multiple modalities. We used a spider, Pardosa milvina, known to respond adaptively to chemotactile predator cues (i.e., silk, faeces and other excreta) to evaluate whether it could also discriminate predation risk from isolated vibratory cues. Vibrations from its prey, conspecifics, and predators (Tigrosa helluo and Scarites quadriceps) were recorded and played back to Pardosa. In addition, we recorded predator vibrations with and without access to chemotactile cues from Pardosa, indicating the presence of prey. Pardosa did not appear to discriminate between vibrations from prey or conspecifics, but the response to predators depended on the presence of cues from Pardosa. Vibrations from predators with access to chemotactile cues from prey induced reductions in Pardosa activity. Predator cues typically occur in multiple modalities, but prey are capable of imperfectly evaluating predation risk using a limited subset of information.
2

van Giesen, Lena, Peter B. Kilian, Corey A. H. Allard y Nicholas W. Bellono. "Molecular Basis of Chemotactile Sensation in Octopus". Cell 183, n.º 3 (octubre de 2020): 594–604. http://dx.doi.org/10.1016/j.cell.2020.09.008.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
3

Bucher, Roman, Hellena Binz, Florian Menzel y Martin H. Entling. "Effects of Spider Chemotactile Cues on Arthropod Behavior". Journal of Insect Behavior 27, n.º 5 (17 de abril de 2014): 567–80. http://dx.doi.org/10.1007/s10905-014-9449-1.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
4

Ruedenauer, Fabian A., Sara D. Leonhardt, Fabian Schmalz, Wolfgang Rössler y Martin F. Strube-Bloss. "Separation of different pollen types by chemotactile sensing inBombus terrestris". Journal of Experimental Biology 220, n.º 8 (9 de febrero de 2017): 1435–42. http://dx.doi.org/10.1242/jeb.153122.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
5

Yafremava, Liudmila S. y Rhanor Gillette. "Putative lateral inhibition in sensory processing for directional turns". Journal of Neurophysiology 105, n.º 6 (junio de 2011): 2885–90. http://dx.doi.org/10.1152/jn.00124.2011.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
Computing targeted responses is a general problem in goal-directed behaviors. We sought the sensory template for directional turning in the predatory sea slug Pleurobranchaea californica, which calculates precise turn angles by averaging multiple stimulus sites on its chemotactile oral veil (Yafremava LS, Anthony CW, Lane L, Campbell JK, Gillette R. J Exp Biol 210: 561–569, 2007). Spiking responses to appetitive chemotactile stimulation were recorded in the two bilateral pairs of oral veil nerves, the large oral veil nerve (LOVN) and the tentacle nerve (TN). The integrative abilities of the peripheral nervous system were significant. Nerve spiking responses to punctate, one-site stimulation of the oral veil followed sigmoid relations as stimuli moved between lateral tentacle and the midline. Receptive fields of LOVN and TN were unilateral, overlapping, and oppositely weighted for responsiveness across the length of oral veil. Simultaneous two-site stimulation caused responses of amplitudes markedly smaller than the sum of corresponding one-site responses. Plots of two-site nerve responses against the summed approximate distances from midline of each site were markedly linear. Thus the sensory paths in the peripheral nervous system show reciprocal occlusion similar to lateral inhibition. This outcome suggests a novel neural function for lateral inhibitory mechanisms, distinct from simple contrast enhancement, in computation of both sensory maps and targeted motor actions.
6

Ruedenauer, Fabian A., Sara D. Leonhardt, Klaus Lunau y Johannes Spaethe. "Bumblebees are able to perceive amino acids via chemotactile antennal stimulation". Journal of Comparative Physiology A 205, n.º 3 (13 de marzo de 2019): 321–31. http://dx.doi.org/10.1007/s00359-019-01321-9.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
7

TERAN, L. M., M. G. CAMPOS, B. T. BEGISHVILLI, J. M. SCHRÖDER, R. DJUKANOVIC, J. K. SHUTE, M. K. CHURCH, S. T. HOLGATE y D. E. DAVIES. "Identification of neutrophil chemotactie factors in bronchoalveolar lavage fluid of asthmatic patients". Clinical & Experimental Allergy 27, n.º 4 (abril de 1997): 396–405. http://dx.doi.org/10.1111/j.1365-2222.1997.tb00724.x.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
8

Tan, Nguan Soon, Guillaume Icre, Alexandra Montagner, Béatrice Bordier-ten Heggeler, Walter Wahli y Liliane Michalik. "The Nuclear Hormone Receptor Peroxisome Proliferator-Activated Receptor β/δ Potentiates Cell Chemotactism, Polarization, and Migration". Molecular and Cellular Biology 27, n.º 20 (6 de agosto de 2007): 7161–75. http://dx.doi.org/10.1128/mcb.00436-07.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
ABSTRACT After an injury, keratinocytes acquire the plasticity necessary for the reepithelialization of the wound. Here, we identify a novel pathway by which a nuclear hormone receptor, until now better known for its metabolic functions, potentiates cell migration. We show that peroxisome proliferator-activated receptor β/δ (PPARβ/δ) enhances two phosphatidylinositol 3-kinase-dependent pathways, namely, the Akt and the Rho-GTPase pathways. This PPARβ/δ activity amplifies the response of keratinocytes to a chemotactic signal, promotes integrin recycling and remodeling of the actin cytoskeleton, and thereby favors cell migration. Using three-dimensional wound reconstructions, we demonstrate that these defects have a strong impact on in vivo skin healing, since PPARβ/δ−/− mice show an unexpected and rare epithelialization phenotype. Our findings demonstrate that nuclear hormone receptors not only regulate intercellular communication at the organism level but also participate in cell responses to a chemotactic signal. The implications of our findings may be far-reaching, considering that the mechanisms described here are important in many physiological and pathological situations.
9

Sitvarin, Michael I. y Ann L. Rypstra. "Sex-Specific Response ofPardosa milvina(Araneae: Lycosidae) to Experience with a Chemotactile Predation Cue". Ethology 118, n.º 12 (19 de noviembre de 2012): 1230–39. http://dx.doi.org/10.1111/eth.12029.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
10

Vézina, Amélie, Cyndia Charfi, Alain Zgheib y Borhane Annabi. "Cerebrovascular Angiogenic Reprogramming upon LRP1 Repression: Impact on Sphingosine-1-Phosphate-Mediated Signaling in Brain Endothelial Cell Chemotactism". Molecular Neurobiology 55, n.º 4 (17 de mayo de 2017): 3551–63. http://dx.doi.org/10.1007/s12035-017-0614-3.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
11

Binz, Hellena, Elena F. Kraft, Martin H. Entling y Florian Menzel. "Behavioral response of a generalist predator to chemotactile cues of two taxonomically distinct prey species". Chemoecology 26, n.º 4 (24 de junio de 2016): 153–62. http://dx.doi.org/10.1007/s00049-016-0215-z.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
12

Moskalik, Brian y George W. Uetz. "Experience with chemotactile cues indicating female feeding history impacts male courtship investment in the wolf spider Schizocosa ocreata". Behavioral Ecology and Sociobiology 65, n.º 11 (20 de julio de 2011): 2175–81. http://dx.doi.org/10.1007/s00265-011-1225-z.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
13

Persons, M. H. "Fitness costs and benefits of antipredator behavior mediated by chemotactile cues in the wolf spider Pardosa milvina (Araneae: Lycosidae)". Behavioral Ecology 13, n.º 3 (1 de mayo de 2002): 386–92. http://dx.doi.org/10.1093/beheco/13.3.386.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
14

Ruedenauer, Fabian A., David Sydow, Johannes Spaethe y Sara D. Leonhardt. "Young bumblebees may rely on both direct pollen cues and early experience when foraging". Proceedings of the Royal Society B: Biological Sciences 287, n.º 1933 (26 de agosto de 2020): 20201615. http://dx.doi.org/10.1098/rspb.2020.1615.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
An adequate supply of macro- and micronutrients determines health and reproductive success in most animals. Many bee species, for example, collect nectar and pollen to satisfy their demands for carbohydrates, protein and fat, respectively. Bees can assess the quality of pollen by feeding on it, but also pre-digestively by means of chemotactile assessment. Whether they additionally use larval nutritional experience, as has been shown for Drosophila melanogaster and Bombyx mori , is unknown. In this study, we tested whether pollen selection of bumblebee foragers is affected by nutritional experience (acquired before the onset of foraging) or solely by food quality. Bumblebee larvae were fed with one out of three different pollen blends. As adults, they were offered all three blends when they started foraging for the first time. We found all treatment groups to prefer one out of the three blends. This blend provided the highest nutritional quality and increased the bees' lifespan, as shown by feeding studies with microcolonies. Besides, bees also chose the pollen blend fed during their larval stage more often than expected, indicating a significant effect of pre-foraging experience on adult pollen foraging behaviour. The combination of both direct pollen quality assessment and pre-foraging experience (i.e. during the larval phase or as early imagines) seems to allow foraging bumblebees to efficiently select the most suitable pollen for their colony.
15

Dominguez-Lopez, Marta, Guillermo Follana-Berná y Pablo Arechavala-Lopez. "Behaviour and body patterns of Octopus vulgaris facing a baited trap: first-capture assessment". Scientia Marina 85, n.º 1 (20 de abril de 2021): 29–38. http://dx.doi.org/10.3989/scimar.05065.003.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
This study highlights for the first time individual differences in ethology and vulnerability of Octopus vulgaris (i.e. body postures, movements and skin displays) facing passive baited traps. Common octopus exposed to a baited trap during three consecutive first-capture tests exhibited diverse behavioural and body pattern sequences resembling when the octopus searches for and hunts its wild prey. Overall, they first visually recognized new objects or potential preys and rapidly moved out of the den, exploring, grabbing and approaching the trap with the arms (chemotactile exploration), and capturing the bait with the arms and feeding on top over long periods inside the trap. Simultaneously, O. vulgaris displayed diverse skin textural and chromatic signs, the regular pattern being the most frequent and long-lasting, followed by broad mottle, passing cloud and dark patterns. All individuals (n=8) caught the bait at least once, although only five octopuses (62.5%) entered the trap in all three tests. In addition, high variability among individuals was observed regarding behaviour and body patterns during the first-capture tests, which might evidence different individual temperaments or life-history traits. Differences in behavioural responses at individual level might have population consequences due to fisheries-induced selection, although there is a high necessity to assess how behavioural traits might play an important role in life-history traits of this species harvested by small-scale trap fisheries.
16

Mahlaoui, Nizar, Carolina Prando, Stephane Blanche, Alain Fischer, Jean-Laurent Casanova y Jacinta Bustamante. "A Variant Form of Chronic Granulomatous Disease Caused by A Mutation in the Exon 9 of CYBB Gene Revealed by A Burkholderia Cepacia Invasive Infection." Blood 114, n.º 22 (20 de noviembre de 2009): 3593. http://dx.doi.org/10.1182/blood.v114.22.3593.3593.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
Abstract Abstract 3593 Poster Board III-530 Introduction Chronic Granulomatous Disease (CGD) is a rare inherited primary immune deficiency (PID) affecting innate immunity and leading to increased susceptibility to severe invasive fungal and bacterial infections. The X-linked form of CGD is caused by mutations in the CYBB gene coding for the gp91phox subunit of the NADPH oxydase complex and accounts for 70-75% of all patients. We report the case of a 10 month old boy who experienced a fatal Burkholderia cepacia pulmonary infection and retrospectively diagnosed with X-CGD despite subnormal initial functional testings. Methods and results This boy is the first child of unconsanguineous parents living in the Tahiti archipelago (French Polynesia). During the first months of life, he experienced some infections mostly of the upper airways with bronchitis and many episodes of diarrhea. He received an uncomplicated BCG vaccine. At age 10 months, he had a severe pneumonitis unresponsive to empiric antibiotics. He was then referred to our center and a Burkholderia cepacia infection was diagnosed. Despite broad spectrum anti infectious agents, daily granulocyte transfusions and intensive supportive care, his lung infection worsened and he eventually died. The clinical presentation of this boy was consistent with a primary defect of the innate immunity. However, nitroblue tetrazolium (NBT) reduction test and chemoluminescence showed high activity level at baseline with difficulty to simulate, and chemotactism was normal. Leukocyte adhesion defect and dense granule disease were ruled out. Sweat tests were repeatedly normal. We assessed O2- production in polymorphonuclear neutrophils (PMNs) from the patient, another patient with X-linked CGD, and a healthy control, following activation with PMA. Residual NADPH activity was detected in the PMNs of the patient. In addition, flow cytometry analysis of the formation of DHR (dihydrorhodamine) 123 oxidation products showed a partial deficiency in the patient's PMNs. His mother had two granulocyte populations, one strongly DHR-positive and the other DHR-low intensity. These results suggest that our patient had a defect in respiratory burst. We investigated the H2O2 production or, β, IL-1αupon milder activation involving priming with TNF- cytochalasin b, followed by fMLF (formyl-methionyl-leucyl-phenylalanine) stimulation. PMNs from our patients, like cells from XR-CGD patients, produced no detectable H2O2. This finding is consistent with the clinical features associated with CGD. Genomic sequencing of CYBB revealed an A>C substitution in exon 9, generating the replacement of a histidine by an arginine residue (H338R). The patient's mother was heterozygous and his brother was hemizygous for this mutation. This mutation was confirmed in cDNA. We investigated the molecular basis of the germline H338R CYBB mutation by measurement of CYBB/gp91phox expression flow cytometry and using the monoclonal antibody 7D5, which recognizes residues 160IKNP163 and 226RIVRG230 on gp91phox in the presence of p22phox. We detected the normal presence of this protein in the patients' EBV-B cells and PMNs. Discussion and Conclusion Herein, we report the case of a child who had features consistent with the diagnosis of CGD but had normal functional testings misleading the correct diagnosis. Further analyses led to the characterization of residual NADPH activity in his PMNs, no detectable H2O2 production upon stimulation, normal expression of the gp91phox caused by a H338R substitution in exon 9 of the CYBB gene. This boy had thus a variant form of CGD with normal expression of gp91phox. Disclosures: No relevant conflicts of interest to declare.
17

Riveros, Andre J., Brian V. Entler y Marc A. Seid. "Stimulus-dependent learning and memory in the neotropical ant Ectatomma ruidum". Journal of Experimental Biology 224, n.º 9 (1 de mayo de 2021). http://dx.doi.org/10.1242/jeb.238535.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
ABSTRACT Learning and memory are major cognitive processes strongly tied to the life histories of animals. In ants, chemotactile information generally plays a central role in social interaction, navigation and resource exploitation. However, in hunters, visual information should take special relevance during foraging, thus leading to differential use of information from different sensory modalities. Here, we aimed to test whether a hunter, the neotropical ant Ectatomma ruidum, differentially learns stimuli acquired through multiple sensory channels. We evaluated the performance of E. ruidum workers when trained using olfactory, mechanical, chemotactile and visual stimuli under a restrained protocol of appetitive learning. Conditioning of the maxilla labium extension response enabled control of the stimuli provided. Our results show that ants learn faster and remember for longer when trained using chemotactile or visual stimuli than when trained using olfactory and mechanical stimuli separately. These results agree with the life history of E. ruidum, characterized by a high relevance of chemotactile information acquired through antennation as well as the role of vision during hunting.
18

Stanley, Michael T. y Ann L. Rypstra. "Male chemotactile cues are not attractive advertisements to Pardosa milvina (Araneae: Lycosidae) females in search of mates". Journal of Arachnology 48, n.º 3 (23 de febrero de 2021). http://dx.doi.org/10.1636/joa-s-19-039.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
19

Ruedenauer, Fabian A., Niklas W. Biewer, Carmen A. Nebauer, Maximilian Scheiner, Johannes Spaethe y Sara D. Leonhardt. "Honey Bees Can Taste Amino and Fatty Acids in Pollen, but Not Sterols". Frontiers in Ecology and Evolution 9 (25 de junio de 2021). http://dx.doi.org/10.3389/fevo.2021.684175.

Texto completo
Los estilos APA, Harvard, Vancouver, ISO, etc.
Resumen
The nutritional composition of food is often complex as resources contain a plethora of different chemical compounds, some of them more, some less meaningful to consumers. Plant pollen, a major food source for bees, is of particular importance as it comprises nearly all macro- and micronutrients required by bees for successful development and reproduction. However, perceiving and evaluating all nutrients may be tedious and impair quick foraging decisions. It is therefore likely that nutrient perception is restricted to specific nutrients or nutrient groups. To better understand the role of taste in pollen quality assessment by bees we investigated nutrient perception in the Western honey bee, Apis mellifera. We tested if the bees were able to perceive concentration differences in amino acids, fatty acids, and sterols, three highly important nutrient groups in pollen, via antennal reception. By means of proboscis extension response (PER) experiments with chemotactile stimulation, we could show that honey bees can distinguish between pollen differing in amino and fatty acid concentration, but not in sterol concentration. Bees were also not able to perceive sterols when presented alone. Our finding suggests that assessment of pollen protein and lipid content is prioritized over sterol content.

Pasar a la bibliografía