keyword
MENU ▼
Read by QxMD icon Read
search

Ciliation

keyword
https://www.readbyqxmd.com/read/28544612/ecology-adaptation-and-function-of-methane-sulfidic-spring-water-biofilm-microorganisms-including-a-strain-of-anaerobic-fungus-mucor-hiemalis
#1
Enamul Hoque, Johannes Fritscher
Ecological aspects, adaptation, and some functions of a special biofilm and its unique key anaerobic fungus Mucor hiemalis strain EH11 isolated from a pristine spring (Künzing, Bavaria, Germany) are described. The spring's pure nature is characterized by, for example, bubbling methane, marine-salinity, mild hydrothermal (~19.1°C), sulfidic, and reductive-anoxic (Eh : -241 to -253 mV, O2 : ≤ 0.1 mg/L) conditions. It is geoecologically located at the border zone between Bavarian Forest (crystalline rocky mountains) and the moor-like Danube River valley, where geological displacements bring the spring's water from the deeper layers of former marine sources up to the surface...
May 24, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28544585/effects-of-ophthalmologic-solutions-on-sinonasal-ciliated-epithelium
#2
Alan D Workman, Ryan M Carey, Michael A Kohanski, Nithin D Adappa, James N Palmer, Noam A Cohen
BACKGROUND: Off-label use of topical ophthalmologic formulations for treatment of rhinologic disease is cited in recent literature and is anecdotally prevalent among practicing otolaryngologists. Steroids, antibiotics, and other drugs designed for ocular use have subjective clinical efficacy in the nose and sinuses, but their specific effects on the ciliated epithelium are less well defined. This study examines 9 commercially available ophthalmologic drug formulations for effects on ciliary motility in sinonasal cultures, in an effort to characterize their utility as topical therapies for sinonasal diseases...
May 23, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28544530/denatonium-induced-sinonasal-bacterial-killing-may-play-a-role-in-chronic-rhinosinusitis-outcomes
#3
Ryan M Carey, Alan D Workman, Kyle M Hatten, Adam P Siebert, Steven G Brooks, Bei Chen, Nithin D Adappa, James N Palmer, David W Kennedy, Robert J Lee, Noam A Cohen
BACKGROUND: Sinonasal bitter taste receptors (T2Rs) contribute to upper airway innate immunity and correlate with chronic rhinosinusitis (CRS) clinical outcomes. A subset of T2Rs expressed on sinonasal solitary chemosensory cells (SCCs) are activated by denatonium, resulting in a calcium-mediated secretion of bactericidal antimicrobial peptides (AMPs) in neighboring ciliated epithelial cells. We hypothesized that there is patient variability in the amount of bacterial killing induced by different concentrations of denatonium and that the differences correlate with CRS clinical outcomes...
May 23, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28544395/morphology-and-molecular-phylogeny-of-a-new-hypotrich-ciliate-pseudourostyla-guizhouensis-sp-nov-from-southern-china-with-notes-on-a-chinese-population-of-hemicycliostyla-franzi-foissner-1987-paiva-et%C3%A2-al-2012-ciliophora-hypotricha
#4
REVIEW
Yanbo Li, Zhao Lyu, Alan Warren, Kexin Zhou, Fengchao Li, Xumiao Chen
The morphology and molecular phylogeny of a soil hypotrich ciliate, Pseudourostyla guizhouensis sp. nov., collected from southern China, were investigated. Pseudourostyla guizhouensis sp. nov. has an elongate elliptical body measuring 180-310 × 65-85 μm in vivo; invariably two right and three or four left marginal rows; six or seven dorsal kineties; adoral zone consisting of 57-70 membranelles; 12-16 frontal cirri, one buccal cirrus, 13-20 midventral pairs, two frontoterminal cirri, two pre-transverse ventral cirri, and five to seven transverse cirri...
May 22, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28544006/morphology-and-phylogeny-of-two-novel-ciliates-arcanisutura-chongmingiensis-n-gen-n-sp-and-naxella-paralucida-n-sp-from-shanghai-china
#5
Wanying Liao, Xinpeng Fan, Qianqian Zhang, Yuan Xu, Fukang Gu
The morphologies of two novel ciliates, Arcanisutura chongmingiensis n. gen., n. sp. and Naxella paralucida n. sp., collected from Shanghai, China, have been investigated using live observation and silver staining methods. Arcanisutura n. gen. can be easily distinguished from related genera by its inconspicuous, oblique anterior suture. Arcanisutura chongmingiensis n. sp. is mainly recognized by its elongated body with a tail-like posterior end, 25-33 somatic kineties, and 4-11 excretory pores. Naxella paralucida n...
May 25, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28526573/transcriptomic-variation-of-locally-infected-skin-of-epinephelus-coioides-reveals-the-mucosal-immune-mechanism-against-cryptocaryon-irritans
#6
Yazhou Hu, Anxing Li, Yang Xu, Biao Jiang, Geling Lu, Xiaochun Luo
Fish skin is the largest immunologically active mucosal organ, providing first-line defense against external pathogens. However, the skin-associated immune mechanisms of fish are still unclear. Cryptocaryon irritans is an obligate ectoparasitic ciliated protozoan that infects almost all marine fish, and is believed to be an excellent pathogen model to study fish mucosal immunity. In this study, a de novo transcriptome assembly of Epinephelus coioides skin post C. irritans tail-infection was performed for the first time using the Illumina HiSeq™ 2500 system...
May 16, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28521174/high-degree-of-specificity-in-the-association-between-symbiotic-betaproteobacteria-and-the-host-euplotes-ciliophora-euplotia
#7
Claudia Vannini, Cristiana Sigona, Martin Hahn, Giulio Petroni, Masahiro Fujishima
The Betaproteobacteria-Euplotes association is an obligatory symbiotic system involving a monophyletic group of ciliate species and two betaproteobacteria species which can be alternatively present. Recent data showed that this relationship has been established more than once and that several symbiont-substitution events took place, revealing a complex and intriguing evolutionary path. Due to the different evolutionary pathways followed by the different symbionts, each bacterial strain could have differentially evolved and/or lost functional traits...
April 13, 2017: European Journal of Protistology
https://www.readbyqxmd.com/read/28516456/description-of-embryonic-development-and-ultrastructure-in-miracidia-of-cardiocephaloides-longicollis-digenea-strigeidae-in-relation-to-active-host-finding-strategy-in-a-marine-environment
#8
Ana Born-Torrijos, Astrid S Holzer, Juan A Raga, Gabrielle S van Beest, Aneta Yoneva
The functional ultrastructure and embryonic development of miracidia in naturally released eggs of the trematode Cardiocephaloides longicollis were studied using light and transmission electron microscopy. This species has operculated eggs and embryogenesis occurs in the marine environment before an actively infecting ciliated miracidium hatches. Six different developmental stages were identified. The lack of pores in the eggshell indicates its impermeability and the miracidium's dependency on glycogen nutritive reserves, contained in numerous vitellocytes in early embryos...
May 17, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28515886/aquatic-microfauna-alter-larval-food-resources-and-affect-development-and-biomass-of-west-nile-and-saint-louis-encephalitis-vector-culex-nigripalpus-diptera-culicidae
#9
Dagne Duguma, Michael G Kaufman, Arthur B Simas Domingos
Ciliate protists and rotifers are ubiquitous in aquatic habitats and can comprise a significant portion of the microbial food resources available to larval mosquitoes, often showing substantial declines in abundance in the presence of mosquito larvae. This top-down regulation of protists is reported to be strong for mosquitoes inhabiting small aquatic containers such as pitcher plants or tree holes, but the nature of these interactions with larval mosquitoes developing in other aquatic habitats is poorly understood...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28509379/microbial-eukaryotes-that-lack-sterols
#10
Kiyotaka Takishita, Yoshito Chikaraishi, Goro Tanifuji, Naohiko Ohkouchi, Tetsuo Hashimoto, Katsunori Fujikura, Andrew J Roger
It is widely held that sterols are key cyclic triterpenoid lipids in eukaryotic cell membranes and are synthesized through oxygen-dependent multi-enzyme pathways. However, there are known exceptions-ciliated protozoans, such as Tetrahymena, along with diverse low-oxygen adapted eukaryotes produce, instead of sterols, the cyclic triterpenoid lipid tetrahymanol that does not require molecular oxygen for its biosynthesis. Here, we report that a number of anaerobic microbial eukaryotes (protists) utilize neither sterols nor tetrahymanol in their membranes...
May 16, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28508746/ciliomotor-circuitry-underlying-whole-body-coordination-of-ciliary-activity-in-the-platynereis-larva
#11
Csaba Verasztó, Nobuo Ueda, Luis A Bezares-Calderón, Aurora Panzera, Elizabeth A Williams, Réza Shahidi, Gáspár Jékely
Ciliated surfaces harbouring synchronously beating cilia can generate fluid flow or drive locomotion. In ciliary swimmers, ciliary beating, arrests, and changes in beat frequency are often coordinated across extended or discontinuous surfaces. To understand how such coordination is achieved, we studied the ciliated larvae of Platynereis dumerilii, a marine annelid. Platynereis larvae have segmental multiciliated cells that regularly display spontaneous coordinated ciliary arrests. We used whole-body connectomics, activity imaging, transgenesis, and neuron ablation to characterize the ciliomotor circuitry...
May 16, 2017: ELife
https://www.readbyqxmd.com/read/28504945/a-bio-inspired-hybrid-thermal-management-approach-for-three-dimensional-network-on-chip-systems
#12
Ranjita Dash, Jose Luis Risco-Martin, Ashok Kumar Turuk, Vinod Pangracious, Jose L Ayala, Amartya Majumdar
Three-dimensional network-on-chip systems are getting popular among the integrated circuit (IC) manufacturer because of reduced latency, heterogeneous integration of technologies on a single chip, high yield, and consumption of less interconnecting power. However, the addition of functional units in the Z-direction has resulted in higher on-chip temperature and appearance of local hotspots on the die. The increase in temperature degrades the performance, lifetime, reliability, and increases the maintenance cost of 3-D ICs...
May 15, 2017: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28504201/cilia-the-sensory-antennae-in-the-eye
#13
REVIEW
Helen May-Simera, Kerstin Nagel-Wolfrum, Uwe Wolfrum
Cilia are hair-like projections found on almost all cells in the human body. Originally believed to function merely in motility, the function of solitary non-motile (primary) cilia was long overlooked. Recent research has demonstrated that primary cilia function as signalling hubs that sense environmental cues and are pivotal for organ development and function, tissue hoemoestasis, and maintenance of human health. Cilia share a common anatomy and their diverse functional features are achieved by evolutionarily conserved functional modules, organized into sub-compartments...
May 11, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28502779/microeukaryote-community-in-a-partial-nitritation-reactor-prior-to-anammox-and-an-insight-into-the-potential-of-ciliates-as-performance-bioindicators
#14
Oriol Canals, Ramon Massana, Joan Lluís Riera, Vanessa Balagué, Humbert Salvadó
An in-depth, long-term, multidisciplinary study was conducted in order to study the microeukaryote community in a partial nitritation (PN) reactor prior to anammox. The PN reactor operated with moving bed biofilm reactor (MBBR) technology, using plastic supports (carriers) for biofilm development. The microeukaryote community from the biofilm (BF) and the surrounding media (mixed liquor or ML) were analysed separately. Despite the physicochemical conditions under which the PN-MBBR operated (an average of 305...
May 11, 2017: New Biotechnology
https://www.readbyqxmd.com/read/28500222/energy-requirements-of-odor-transduction-in-the-chemosensory-cilia-of-olfactory-sensory-neurons-rely-on-oxidative-phosphorylation-and-glycolytic-processing-of-extracellular-glucose
#15
Pablo S Villar, Ricardo Delgado, Cecilia Vergara, Juan G Reyes, Juan Bacigalupo
The mechanisms that power the physiological events occuring in cilia, flagella and microvilli are of fundamental importance for the functions of these important and ubicuous organelles. The olfactory epithelium (OE) is mostly populated by ciliated olfactory sensory neurons (OSNs) and surrounding sustentacular cells (SCs) with apical microvilli. The only OSN dendrite extends to the surface forming a knob projecting several chemosensory cilia of approximately 50 x 0.2 μm, devoid of inner membranes embedded in a mucus layer...
May 12, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28499076/single-cell-analysis-linking-ribosomal-r-dna-and-rrna-copy-numbers-to-cell-size-and-growth-rate-provides-insights-into-molecular-protistan-ecology
#16
Rao Fu, Jun Gong
Ribosomal (r)RNA and rDNA have been golden molecular markers in microbial ecology. However, it remains poorly understood how ribotype copy number (CN)-based characteristics are linked with diversity, abundance and activity of protist populations and communities observed at organismal levels. Here, we applied a single-cell approach to quantify ribotype CNs in two ciliate species reared at different temperatures. We found that in actively growing cells, the per-cell rDNA and rRNA CNs scaled with cell volume (CV) to 0...
May 12, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28494930/a-ros-dependent-and-caspase-3-mediated-apoptosis-in-sheep-bronchial-epithelial-cells-in-response-to-mycoplasma-ovipneumoniae-infections
#17
Di Xue, Yanan Li, Zhongjia Jiang, Guangcun Deng, Min Li, Xiaoming Liu, Yujiong Wang
Mycoplasma Ovipneumoniae (M. ovipneumoniae) is a primary etiological agent of enzootic pneumonia in sheep and goats. It can enter and colonize ovine respiratory epithelial cells to establish an infection, which leads a serious cell death of epithelial cells. However, the nature of the interaction between pathogen of M. ovipneumoniae and host cells in the cell injury is currently not well understood. In this study, we investigated the epithelial cell apoptosis caused by an infection of M. ovipneumoniae in sheep primary air-liquid interface (ALI) epithelial cultures...
May 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28493958/evolutionary-transition-towards-permanent-chloroplasts-division-of-kleptochloroplasts-in-starved-cells-of-two-species-of-dinophysis-dinophyceae
#18
Pernille Møller Rusterholz, Per Juel Hansen, Niels Daugbjerg
Species within the marine toxic dinoflagellate genus Dinophysis are phagotrophic organisms that exploit chloroplasts (kleptochloroplasts) from other protists to perform photosynthesis. Dinophysis spp. acquire the kleptochloroplasts from the ciliate Mesodinium rubrum, which in turn acquires the chloroplasts from a unique clade of cryptophytes. Dinophysis spp. digest the prey nuclei and all other cell organelles upon ingestion (except the kleptochloroplasts) and they are therefore believed to constantly acquire new chloroplasts as the populations grow...
2017: PloS One
https://www.readbyqxmd.com/read/28486619/comparing-the-responses-of-rumen-ciliate-protozoa-and-bacteria-to-excess-carbohydrate
#19
César R V Teixeira, Rogério de Paula Lana, Junyi Tao, Timothy J Hackmann
When given excess carbohydrate, certain microbial species respond by storing energy (synthesizing reserve carbohydrate), but other species respond by dissipating the energy as heat (spilling energy). To determine the importance of these responses in the rumen microbial community, this study quantified the responses of mixed ciliate protozoa vs. bacteria to glucose. We hypothesized that ciliates would direct more glucose to synthesis of reserve carbohydrate (and less to energy spilling) than would bacteria. Ciliates and bacteria were isolated from rumen fluid using filtration and centrifugation, resuspended in nitrogen-free buffer to limit growth, and dosed with 5 mM glucose...
May 9, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28483981/the-role-of-nitric-oxide-during-embryonic-epidermis-development-of-xenopus-laevis
#20
Silvie Tomankova, Pavel Abaffy, Radek Sindelka
Nitric oxide (NO) is a potent radical molecule that participates during various biological processes such as vasodilation, cell proliferation, immune response and neurotransmission. NO mainly activates soluble guanylate cyclase, leading to cGMP production and activation of protein kinase G and its downstream targets. Here we report the essential role of NO during embryonic epidermis development. Xenopus embryonic epidermis has become a useful model reflecting human epithelial tissue composition. The developing epidermis of Xenopus laevis is formed from specialized ionocytes, multi-ciliated, goblet and small secretory cells...
May 8, 2017: Biology Open
keyword
keyword
52224
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"