Species-specific patterns of the use of burrows of Upogebia Leach, 1814 (Decapoda: Gebiidea: Upogebiidae) by the symbiotic alpheid shrimps Stenalpheops anacanthus Miya, 1997 and Athanas japonicus Kubo, 1936 (Decapoda: Caridea: Alpheidae) as revealed by laboratory quantification

2020 ◽  
Author(s):  
Yumi Henmi ◽  
Gyo Itani
Keyword(s):  
Evolutionary Biology ◽  
Evolutionary History ◽  
The Body ◽  
Symbiotic Relationship ◽  
Use Patterns ◽  
Species Specific ◽  
Burrow Use ◽  
First Time ◽  
The Relationship ◽  
Observation Period

Abstract Many alpheid shrimps live symbiotically on the body surface or inside the bodies of other invertebrates, while others use burrows made by other animals. The burrow symbiosis of alpheid shrimps is poorly studied in the context of ecology, probably because the cryptic infaunal nature of the relationship is hard to observe. The limited knowledge of the pattern of burrow use by alpheid shrimps leaves a gap in our understanding of their evolutionary history. We described and compared the behavior of Stenalpheops anacanthus  Miya, 1997 and Athanas japonicus  Kubo, 1936, two alpheid species living symbiotically in the burrows of the same host, Upogebia yokoyai  Makarov, 1938. We found that both alpheid species used U. yokoyai burrows in aquaria, but their burrow use patterns were quite different. The average time taken for S. anacanthus to enter the burrow for the first time was much shorter (1 min) than that of A. japonicus (13 min). Subsequently, S. anacanthus made longer use of the burrow (80% of the observation period) than A. japonicus (49%). The tail-first exit frequency, which may indicate a sudden expulsion from the burrow by the host, was more frequent in A. japonicus (25%) than in S. anacanthus (7%). Such differences could be attributed to the nature of the symbiotic relationship, obligate in S. anacanthus but facultative in A. japonicus. Because of the diversity of symbiotic lifestyles, there is considerable potential to study the ecology and evolutionary biology of burrow-symbiotic alpheids further.

The World at Our Fingertips

2021 ◽  
Keyword(s):  
Evolutionary History ◽  
Peripersonal Space ◽  
The Body ◽  
Self Awareness ◽  
Vast Number ◽  
The World ◽  
First Time ◽  
The Relationship ◽  
Special Case ◽  
Perception Action

Where do you end and the external world begin? This might seem to be a straightforward, binary question: your skin is the boundary, with the self on one side and the rest of the world on the other. Peripersonal space shows that the division is not that simple. The boundary is blurrier than you might have thought. Our ability to monitor the space near the body appears to be deeply ingrained. Our evolutionary history has equipped our brains with a special mechanism to track multisensory stimuli that can potentially interact with our physical body in its immediate surroundings and prime appropriate actions. The processing of the immediate space around one’s body thus displays highly specific multisensory and motor features, distinct from those that characterize the processing of regions of space that are further away. The computational specificities here lead one to wonder whether classic theories of perception apply to the special case of peripersonal space. We think that there is a need to reassess the relationship between perception, action, emotion, and self-awareness in the highly special context of the immediate surroundings of our body. For the first time, leading experts on peripersonal space in cognitive psychology, neuropsychology, neuroscience, and ethology gathered in this volume describe the vast number of fascinating discoveries about this special way of representing space. For the first time too, these empirical results and the questions they open are brought into dialogue with philosophy.

Mobilization of the Planet from the Spirit of Self-Intensification

2006 ◽  
Vol 50 (4) ◽  
pp. 36-43 ◽  
Author(s):  
Peter Sloterdijk
Keyword(s):  
Critical Theory ◽  
Gilles Deleuze ◽  
Body Movement ◽  
The Body ◽  
Felix Guattari ◽  
Peter Sloterdijk ◽  
First Time ◽  
The Relationship

The articles in this first installment of a series on choreography that considers the relationship between philosophy and dance interrogate conceptions of the body, movement, and language. Translated for the first time into English, the selection by José Gil reads the dancing body as paradoxical through the writings of Gilles Deleuze and Félix Guattari; and the chapter by Peter Sloterdijk examines modernity's impulse toward movement and posits a critical theory of mobilization. An interview with choreographer Hooman Sharifi accompanies a meditation on his recent performance.

Mutant Enunciations

2006 ◽  
Vol 50 (4) ◽  
pp. 17-20 ◽  
Author(s):  
André Lepecki
Keyword(s):  
Critical Theory ◽  
Gilles Deleuze ◽  
Body Movement ◽  
The Body ◽  
Felix Guattari ◽  
Peter Sloterdijk ◽  
First Time ◽  
The Relationship

The articles in this first installment of a series on choreography that considers the relationship between philosophy and dance interrogate conceptions of the body, movement, and language. Translated for the first time into English, the selection by José Gil reads the dancing body as paradoxical through the writings of Gilles Deleuze and Félix Guattari; and the chapter by Peter Sloterdijk examines modernity's impulse toward movement and posits a critical theory of mobilization. An interview with choreographer Hooman Sharifi accompanies a meditation on his recent performance.

scholarly journals Association of TCTP with Centrosome and Microtubules

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Mariusz K. Jaglarz ◽  
Franck Bazile ◽  
Katarzyna Laskowska ◽  
Zbigniew Polanski ◽  
Franck Chesnel ◽  
...  
Keyword(s):  
Xenopus Laevis ◽  
Mammalian Cells ◽  
Double Labelling ◽  
Spindle Poles ◽  
Pericentriolar Material ◽  
Indirect Association ◽  
Species Specific ◽  
Relationship Of ◽  
First Time ◽  
The Relationship

Translationally Controlled Tumour Protein (TCTP) associates with microtubules (MT), however, the details of this association are unknown. Here we analyze the relationship of TCTP with MTs and centrosomes inXenopus laevisand mammalian cells using immunofluorescence, tagged TCTP expression and immunoelectron microscopy. We show that TCTP associates both with MTs and centrosomes at spindle poles when detected by species-specific antibodies and by Myc-XlTCTP expression inXenopusand mammalian cells. However, when the antibodies against XlTCTP were used in mammalian cells, TCTP was detected exclusively in the centrosomes. These results suggest that a distinct pool of TCTP may be specific for, and associate with, the centrosomes. Double labelling for TCTP and γ-tubulin with immuno-gold electron microscopy inXenopus laevisoogonia shows localization of TCTP at the periphery of the γ-tubulin-containing pericentriolar material (PCM) enveloping the centriole. TCTP localizes in the close vicinity of, but not directly on the MTs inXenopusovary suggesting that this association requires unidentified linker proteins. Thus, we show for the first time: (1) the association of TCTP with centrosomes, (2) peripheral localization of TCTP in relation to the centriole and the γ-tubulin-containing PCM within the centrosome, and (3) the indirect association of TCTP with MTs.

Reflections on Failure

2006 ◽  
Vol 50 (4) ◽  
pp. 44-51
Author(s):  
Jenn Joy
Keyword(s):  
Critical Theory ◽  
Gilles Deleuze ◽  
Body Movement ◽  
The Body ◽  
Felix Guattari ◽  
Peter Sloterdijk ◽  
First Time ◽  
The Relationship

The articles in this first installment of a series on choreography that considers the relationship between philosophy and dance interrogate conceptions of the body, movement, and language. Translated for the first time into English, the selection by José Gil reads the dancing body as paradoxical through the writings of Gilles Deleuze and Félix Guattari; and the chapter by Peter Sloterdijk examines modernity's impulse toward movement and posits a critical theory of mobilization. An interview with choreographer Hooman Sharifi accompanies a meditation on his recent performance.

scholarly journals Species-Specific Features of Neuron-Glial Populations in the Brain of Tailless Amphibians

2019 ◽  
pp. 445-459
Author(s):  
Liubov’ N. Afanaskina ◽  
Nadezhda N. Medvedeva
Keyword(s):  
Brain Regions ◽  
Bufo Bufo ◽  
Cellular Level ◽  
The Body ◽  
Rana Arvalis ◽  
Species Specific ◽  
The Relationship ◽  
The Brain ◽  
Tailless Amphibians

The midbrain roof and cerebellum cortex are the main integrative centers in amphibians. They serve to analyze and process nerve impulses, form the organism’s response, regulate and coordinate movements, connect amphibians with their environments. The present study addresses the relationship between the species of the tailless amphibians inhabiting the southern part of the Krasnoyarsk region (Bufo bufo Linnaeus, Rana arvalis Nilsson, Pelophylax ridibundus Pallas, and Rana amurensis Boulenger) and the morphological parameters of the populations of neurons and glia in layer VI of the midbrain roof and layers of the cerebellum cortex. The species-specific structure of amphibians’ brain regions has been found to be evident not only at the organ level (size and shape), but also at the level of the organization of neuron and glial cell populations. Distinctive species-specific differences can be found in the parameters of cell area (the area of the body, the area of the nucleus and the area of the cytoplasm) and the distribution density of neurons and gliocytes. The development of specific morphological features at the cellular level of the arrangement of the midbrain and cerebellum layers in different species of tailless amphibians is associated with long-term phylogenetic transformations of their nervous system and adaptation of amphibians to the terrestrial-aquatic habitat

Paradoxical Body

2006 ◽  
Vol 50 (4) ◽  
pp. 21-35 ◽  
Author(s):  
José Gil
Keyword(s):  
Critical Theory ◽  
Gilles Deleuze ◽  
Body Movement ◽  
The Body ◽  
Felix Guattari ◽  
Peter Sloterdijk ◽  
First Time ◽  
The Relationship

The articles in this first installment of a series on choreography that considers the relationship between philosophy and dance interrogate conceptions of the body, movement, and language. Translated for the first time into English, the selection by José Gil reads the dancing body as paradoxical through the writings of Gilles Deleuze and Félix Guattari; and the chapter by Peter Sloterdijk examines modernity's impulse toward movement and posits a critical theory of mobilization. An interview with choreographer Hooman Sharifi accompanies a meditation on his recent performance.

scholarly journals Differential detection ofEntamoeba histolytica,Entamoeba disparandEntamoeba moshkovskiiin faecal samples using nested multiplex PCR in west of Iran

2019 ◽  
Vol 147 ◽  
Author(s):  
Fares Bahrami ◽  
Ali Haghighi ◽  
Ghasem Zamini ◽  
Mohammadbagher Khademerfan
Keyword(s):  
Clinical Symptoms ◽  
Gastrointestinal Symptoms ◽  
Stool Examination ◽  
Entamoeba Dispar ◽  
Faecal Samples ◽  
Northwest Of Iran ◽  
Stool Samples ◽  
Species Specific ◽  
First Time ◽  
The Relationship

AbstractThis study aimed to determine the prevalence ofEntamoeba histolytica,Entamoeba disparandEntamoeba moshkovskii(collectively referred to asEntamoebacomplex), using microscopic and molecular methods in Kurdistan Province, northwest of Iran. The relationship between positiveEntamoebaspecies and clinical symptoms was also investigated. Eight positiveEntamoebacomplex, as well as fourEntamoebacomplex-like isolates, were detected by microscopic stool examination. DNA was extracted from all positive and from 55 randomly selected negative stool samples. PCR was performed using species-specific 18S rRNA primers for theEntamoebacomplex. All positive PCR samples were sequenced. In total, 14 (1.01%) out of 1383 isolates, i.e. 12 microscopy-positive andEntamoebacomplex-like isolates and two out of 55 microscopy-negative isolates, were identified via PCR and sequencing. Overall, 0.58% (8/1383) of the isolates wereE.dispar, 0.14% (2/1383)E.histolytica, 0.07% (1/1383)E.moshkovskiiand 0.22% (3/1383) were mixed ofE.histolyticaandE.dispar. Based on our findings, the prevalence ofE. disparis greater than that ofE. histoltyica. On the other hand, a case ofE. moshkovskiiwas reported for the first time in this region. It seems that some gastrointestinal symptoms may be attributed toEntamoebaspecies.

scholarly journals Gua Sha attenuates the pulmonary inflammation in mice infected with PR8 virus by balancing the ratio of Treg/Th17

2020 ◽  
Author(s):  
Yalan Li ◽  
Yongan Wang ◽  
Jingwei Kong ◽  
Zirui Liu ◽  
Dongyu Ge ◽  
...  
Keyword(s):  
Pulmonary Inflammation ◽  
Survival Rates ◽  
Significant Inhibition ◽  
The Body ◽  
T Helper 17 ◽  
Inflammatory Infiltration ◽  
Gua Sha ◽  
First Time ◽  
The Relationship ◽  
Metalloproteinase 9

Abstract Background: Gua Sha, an ancient Chinese treatment which produces the pressure on the skin, is used to prevent and treat cold for thousands of years. There’re evidences to approve that it can activate immune response and reduce the inflammation. However, how it has the effect on T helper 17 cells (Th17) and regulatory T cells (Treg) is poorly understood. Here, this study aims at the relationship between the pressure-stoke in the skin and pulmonary Th17 as well as Treg in PR8-infected mice. Methods: ICR mice were randomly divided into five groups. The body weight and survival rates of all groups were monitored through the experiment. At the end of experiment, lung inflammation was detected by HE staining and the expression of Matrix metalloproteinase-9 (MMP-9) was measured by immunohistochemistry. Th17 and Treg from lung tissues was analyzed by flow cytometry. esults: Our results indicated that the survival rates of prophylactic and therapeutic group respectively showed 20% and 10% though Gua Sha treatment didn’t restore the weight-loss of PR8-infected mice. What’s more important, Gua Sha remarkably inhibited inflammatory infiltration and the expression of MMP-9 of lung tissues in infected mice ( p ＜0.05). Finally, the ratio of Treg/Th17 from lung tissues in PR8-infected mice was significantly increased as compared with control mice while Gua Sha treatment remarkably inhibited this enhancement. All these results indicated that Gua Sha has the efficacy on reducing the pulmonary inflammation in PR8-infected mice possibly via restoring the Treg/Th17 balance. Conclusions: Our findings for the first time suggest that Gua Sha exhibits a significant inhibition of inflammatory infiltration with down-regulation of MMP-9 in lung tissues from RR8-infected mice, which might be associated with the differentiation of Th17 and Treg. Further research will be carried toward how Gua Sha functions on maintaining the homeostasis of Th17 and Treg in the lungs.

scholarly journals Moulting pattern and mortality during the final emergence of the Coromandel Marsh Dart Damselfly Ceriagrion coromandelianum (Zygoptera: Coenagrionidae) in central India

2019 ◽  
Vol 11 (13) ◽  
pp. 14672-14680
Author(s):  
Nilesh R. Thaokar ◽  
Payal R. Verma ◽  
Raymond J. Andrew
Keyword(s):  
Central India ◽  
Botanical Garden ◽  
Instar Nymph ◽  
The Body ◽  
Pistia Stratiotes ◽  
Whole Body ◽  
Present Observation ◽  
Botany Department ◽  
Species Specific ◽  
Observation Period

The final emergence of the Coromandel Marsh Dart Damselfly Ceriagrion coromandelianum was studied for 50 days (22 January–12 March, 2011) from the botanical garden of Hislop College, Nagpur, India, (a semi controlled site) where small underground cement tubs/tanks are used to grow macrophytes by the Botany department.  In C. coromandelianum emergence is asynchronous, diurnal and occurs between 07.00h and 18.00h.  Stage-I starts when the ultimate instar nymph of C. coromandelianum leaves the water body, searches for a suitable place and then begins to shudder its body to detach the trapped pharate from the nymphal exuvia.  The pharate exerts pressure on the thoracic tergites to split the cuticle.  Stage-II starts when the head and thorax of the pharate emerges out of the split exuvia.  The pharate struggles to remove its trapped body from the nymphal exuvia.  During Stage-III, the wings expand but are opaque; pigmentation of the body occurs simultaneously all over the body.  Soon the whole body develops its species specific coloration while the expanding wings gain transparency, unfold and separate out and now the imago is ready for its maiden flight.  Stages I, II, and III occupy 31.66%, 11.73%, and 56.60% of the total moulting period, respectively.  A total of 243 emergences occurred during the observation period, 158 emergences occurred in tanks containing Pistia stratiotes, while 65 emergences in tubs containing Nymphaea nouchali indicating that C. coromandelianum prefers P. stratiotes over N. nouchali for oviposition.  Twenty deaths were recorded during the present observation.  Failure to moult (15%) and failure to emerge completely out of the exuvia (85%) were the two reasons for mortality.  

Sign in / Sign up

Export Citation Format

Share Document