keyword
MENU ▼
Read by QxMD icon Read
search

Cnidaria

keyword
https://www.readbyqxmd.com/read/29444861/interacting-heads-motif-has-been-conserved-as-a-mechanism-of-myosin-ii-inhibition-since-before-the-origin-of-animals
#1
Kyoung Hwan Lee, Guidenn Sulbarán, Shixin Yang, Ji Young Mun, Lorenzo Alamo, Antonio Pinto, Osamu Sato, Mitsuo Ikebe, Xiong Liu, Edward D Korn, Floyd Sarsoza, Sanford I Bernstein, Raúl Padrón, Roger Craig
Electron microscope studies have shown that the switched-off state of myosin II in muscle involves intramolecular interaction between the two heads of myosin and between one head and the tail. The interaction, seen in both myosin filaments and isolated molecules, inhibits activity by blocking actin-binding and ATPase sites on myosin. This interacting-heads motif is highly conserved, occurring in invertebrates and vertebrates, in striated, smooth, and nonmuscle myosin IIs, and in myosins regulated by both Ca 2+ binding and regulatory light-chain phosphorylation...
February 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29416390/deep-water-octocorals-cnidaria-anthozoa-from-the-gal%C3%A3-pagos-and-cocos-islands-part-1-suborder-calcaxonia
#2
Stephen D Cairns
Thirteen species of deep-water calcaxonian octocorals belonging to the families Primnoidae, Chrysogorgiidae, and Isididae collected from off the Galápagos and Cocos Islands are described and figured. Seven of these species are described as new; nine of the 13 are not known outside the Galápagos region. Of the four species occurring elsewhere, two also occur in the eastern Pacific, one off Hawaii, and one from off Antarctica. A key to the 22 Indo-Pacific species of Callogorgia is provided to help distinguish those species...
2018: ZooKeys
https://www.readbyqxmd.com/read/29374784/novel-henneguya-spp-cnidaria-myxozoa-from-cichlid-fish-in-the-amazon-basin-cluster-by-geographic-origin
#3
Suellen Aparecida Zatti, Stephen D Atkinson, Antônio A M Maia, Jerri L Bartholomew, Edson A Adriano
We describe three new Henneguya spp. (Myxobolidae) found parasitizing two species of cichlid fish from the Amazon basin, Brazil: H. tucunarei n. sp. from gill filaments of Cichla monoculus and H. tapajoensis n. sp. from gill filaments of Cichla pinima, both from the Tapajós River, Pará State and H. jariensis n. sp. in the fins of Cichla monoculus from the Jari River, Amapá State. We based descriptions on myxospore morphology and small subunit ribosomal DNA sequences, and used a phylogenetic analysis to compare the new Henneguya species with known relatives...
January 27, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29373572/intraspecific-variation-in-oxidative-stress-tolerance-in-a-model-cnidarian-differences-in-peroxide-sensitivity-between-and-within-populations-of-nematostella-vectensis
#4
Lauren E Friedman, Thomas D Gilmore, John R Finnerty
Nematostella vectensis is a member of the phylum Cnidaria, a lineage that includes anemones, corals, hydras, and jellyfishes. This estuarine anemone is an excellent model system for investigating the evolution of stress tolerance because it is easy to collect in its natural habitat and to culture in the laboratory, and it has a sequenced genome. Additionally, there is evidence of local adaptation to environmental stress in different N. vectensis populations, and abundant protein-coding polymorphisms have been identified, including polymorphisms in proteins that are implicated in stress responses...
2018: PloS One
https://www.readbyqxmd.com/read/29338808/ceratomyxa-gracillima-n-sp-cnidaria-myxosporea-provides-evidence-of-panmixia-and-ceratomyxid-radiation-in-the-amazon-basin
#5
Suellen A Zatti, Stephen D Atkinson, Antônio A M Maia, Jerri L Bartholomew, Edson A Adriano
We describe a new freshwater myxosporean species Ceratomyxa gracillima n. sp. from the gall bladder of the Amazonian catfish Brachyplatystoma rousseauxii; the first myxozoan recorded in this host. The new Ceratomyxa was described on the basis of its host, myxospore morphometry, ssrDNA and internal transcribed spacer region (ITS-1) sequences. Infected fish were sampled from geographically distant localities: the Tapajós River, Pará State, the Amazon River, Amapá State and the Solimões River, Amazonas State...
January 17, 2018: Parasitology
https://www.readbyqxmd.com/read/29333345/ontogeny-reversal-and-phylogenetic-analysis-of-turritopsis-sp-5-cnidaria-hydrozoa-oceaniidae-a-possible-new-species-endemic-to-xiamen-china
#6
Jun-Yuan Li, Dong-Hui Guo, Peng-Cheng Wu, Li-Sheng He
Ontogeny reversal, as seen in some cnidarians, is an unprecedented phenomenon in the animal kingdom involving reversal of the ordinary life cycle. Three species of Turritopsis have been shown to be capable of inverted metamorphosis, a process in which the pelagic medusa transforms back into a juvenile benthic polyp stage when faced with adverse conditions. Turritopsis sp.5 is a species of Turritopsis collected from Xiamen, China which presents a similar ability, being able to reverse its life cycle if injured by mechanical stress...
2018: PeerJ
https://www.readbyqxmd.com/read/29324689/characterization-of-translationally-controlled-tumour-protein-from-the-sea-anemone-anemonia-viridis-and-transcriptome-wide-identification-of-cnidarian-homologues
#7
Aldo Nicosia, Carmelo Bennici, Girolama Biondo, Salvatore Costa, Marilena Di Natale, Tiziana Masullo, Calogera Monastero, Maria Antonietta Ragusa, Marcello Tagliavia, Angela Cuttitta
Gene family encoding translationally controlled tumour protein (TCTP) is defined as highly conserved among organisms; however, there is limited knowledge of non-bilateria. In this study, the first TCTP homologue from anthozoan was characterised in the Mediterranean Sea anemone, Anemonia viridis. The release of the genome sequence of Acropora digitifera, Exaiptasia pallida, Nematostella vectensis and Hydra vulgaris enabled a comprehensive study of the molecular evolution of TCTP family among cnidarians. A comparison among TCTP members from Cnidaria and Bilateria showed conserved intron exon organization, evolutionary conserved TCTP signatures and 3D protein structure...
January 11, 2018: Genes
https://www.readbyqxmd.com/read/29285938/novel-kunitz-like-peptides-discovered-in-the-zoanthid-palythoa-caribaeorum-through-transcriptome-sequencing
#8
Qiwen Liao, Shengnan Li, Shirley Weng In Siu, Binrui Yang, Chen Huang, Judy Yuet-Wa Chan, Jean-Étienne Morlighem, Clarence Tsun Ting Wong, Gandhi Radis-Baptista, Simon Ming-Yuen Lee
Palythoa caribaeorum (class Anthozoa) is a zoanthid that together jellyfishes, hydra, and sea anemones, which are venomous and predatory, belongs to the Phyllum Cnidaria. The distinguished feature in these marine animals is the cnidocytes in the body tissues, responsible for toxin production and injection that are used majorly for prey capture and defense. With exception for other anthozoans, the toxin cocktails of zoanthids have been scarcely studied and are poorly known. Here, based on the analysis of P. caribaeorum transcriptome, numerous predicted venom-featured polypeptides were identified, including allergens, neurotoxins, membrane-active and Kunitz-like peptides (PcKuz)...
December 29, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29285565/morphological-and-molecular-characterization-of-a-novel-myxosporean-parasite-myxobolus-bejeranoi-n-sp-cnidaria-myxosporea-from-hybrid-tilapia-in-israel
#9
Alena Lövy, Margarita Smirnov, Vera Brekhman, Tamir Ofek, Tamar Lotan
Myxosporean infections can cause severe damage to commercially grown tilapia. Here, we report a novel myxosporean that was found in gills of Oreochromis aureus male × Oreochromis niloticus female, which is an important aquaculture tilapia hybrid in Israel. Three-month-old fish were found to have cysts located in gill muscle tissue, which were filled with both immature and mature spores. Affected fish displayed higher mortality rate. Spore dimensions (10.8 ± 0.7 μm length × 6.8 ± 0.6 μm width) and molecular characterization using 18S ribosomal DNA revealed that the unknown parasite belongs in the Myxobolus clade...
December 28, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29281657/indoles-induce-metamorphosis-in-a-broad-diversity-of-jellyfish-but-not-in-a-crown-jelly-coronatae
#10
Rebecca R Helm, Casey W Dunn
Many animals go through one or more metamorphoses during their lives, however, the molecular underpinnings of metamorphosis across diverse species are not well understood. Medusozoa (Cnidaria) is a clade of animals with complex life cycles, these life cycles can include a polyp stage that metamorphoses into a medusa (jellyfish). Medusae are produced through a variety of different developmental mechanisms-in some species polyps bud medusae (Hydrozoa), in others medusae are formed through polyp fission (Scyphozoa), while in others medusae are formed through direct transformation of the polyp (Cubozoa)...
2017: PloS One
https://www.readbyqxmd.com/read/29258421/in-vivo-imaging-of-epithelial-wound-healing-in-the-cnidarian-clytia-hemisphaerica-demonstrates-early-evolution-of-purse-string-and-cell-crawling-closure-mechanisms
#11
Zach Kamran, Katie Zellner, Harry Kyriazes, Christine M Kraus, Jean-Baptiste Reynier, Jocelyn E Malamy
BACKGROUND: All animals have mechanisms for healing damage to the epithelial sheets that cover the body and line internal cavities. Epithelial wounds heal either by cells crawling over the wound gap, by contraction of a super-cellular actin cable ("purse string") that surrounds the wound, or some combination of the two mechanisms. Both cell crawling and purse string closure of epithelial wounds are widely observed across vertebrates and invertebrates, suggesting early evolution of these mechanisms...
December 19, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/29245639/the-black-coral-fauna-cnidaria-antipatharia-of-bermuda-with-new-records
#12
Daniel Wagner, Andrew Shuler
The black coral fauna of Bermudan waters is poorly known, in large part due to the logistical challenges of surveying deep-water (>50 m) environments where most species occur. In 2016, the Nekton Expedition sought to survey the deep-water biodiversity around Bermuda using manned submersibles and mixed-gas technical SCUBA. A total of 28 black coral specimens were collected, and these were examined based on skeletal spine morphology, polyp morphology, colony branching pattern and in situ photographs. The specimens were assigned to seven species in three families and four genera, including (1) Antipathes atlantica Gray, 1857, (2) Antipathes furcata Gray, 1857, (3) Stichopathes pourtalesi Brook, 1889, (4) Stichopathes sp...
November 7, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245604/benthic-hydroids-cnidaria-hydrozoa-from-bathyal-and-abyssal-depths-of-the-northeast-atlantic-held-in-the-modern-i-discovery-i-i-collections-i
#13
Álvaro L Peña Cantero, Tammy Horton
The deep-sea benthic hydroid fauna remains poorly known, in part because of less frequent sampling than the shelf fauna, in part owing to the immense study area, and partly also because available samples have been little studied by experts. In order to correct this, deep-sea benthic hydroid material from the modern Discovery Collections has been studied. Samples come from localities in the North-East Atlantic including the Porcupine Seabight, Porcupine Abyssal Plain, Rockall Trough, Rockall Bank, and the Mid-Atlantic Ridge...
November 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245530/morphological-histopathological-and-molecular-characterization-of-i-thelohanellus-pathankotensis-i-n-sp-cnidaria-myxosporea-myxozoa-infecting-an-indian-minor-carp-i-labeo-i-i-dero-i-hamilton-1822-from-a-cold-water-wetland-in-punjab-india
#14
Harpreet Kaur, Aditya Gupta
A new myxobolid, Thelohanellus pathankotensis parasitizing gill lamellae and caudal fins of the Indian minor carp Labeo dero has been described using light microscopy, histopathology and molecular analyses. The fish host was collected from a cold water wetland, Ranjit Sagar Wetland, Punjab, India located 32 ̊ 26 ̍ 30 ̎ N Latitude and 75 ̊ 43 ̍ 30 ̎ E Longitude. The prevalence of infection was 30%. The plasmodia were located in the gill lamellae and the caudal fins were cylindrical and whitish, 0.8-1.0 mm in size containing about 150-300 myxospores...
November 22, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245509/deep-water-scleractinian-corals-cnidaria-anthozoa-from-2010-2011-indemares-expeditions-to-the-galicia-bank-spain-northeast-atlantic
#15
Alvaro Altuna
During surveys in the Galicia Bank (northeastern Atlantic) in the years 2010-2011 (INDEMARES project), 25 species of scleractinian corals corals were collected in a depth interval of 744-1764 m. Most interesting species are described and depicted. Additionally, species list and remarks are given for the 23 species dredged in the bank during the 1987 SEAMOUNT 1 expedition at 675-1125 m depth.From a literature review and new records from Galicia Bank given herein, 31 species of scleractinian corals are known from this seamount in a depth interval of 614-1764 m depth...
November 23, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245376/the-genus-i-diphasia-i-l-agassiz-1862-cnidaria-hydrozoa-in-northwest-africa
#16
Marta Gil, Fran Ramil
This paper is the result of the study of large collections of Sertulariidae Lamouroux, 1812 (Cnidaria, Hydrozoa, Hydroidolina) obtained from continental margins of Northwest Africa by several Spanish and Norwegian surveys between 2004 and 2012. Material collected from Lusitanian seamounts by the French Seamount 1 expedition and from the Great Meteor Bank by the German survey Meteor 42/3 were also examined. A total of 12 species belonging to the genus Diphasia were studied and illustrated, and four new species were described: Diphasia leonisae n...
December 12, 2017: Zootaxa
https://www.readbyqxmd.com/read/29242431/catalog-of-taxa-introduced-by-luitfried-salvini-plawen-1939-2014
#17
Susanne Affenzeller, Gerhard Steiner
Luitfried Salvini-Plawen was one of the most distinguished researchers for molluscan phylogenetic systematics of the last decades. In his publications he described a total of 193 species: 134 Solenogastres, 34 Caudofoveata, 14 interstitial Gastropoda, one polyplacophoran and the remaining comprising Cnidaria, Priapulida, Kamptozoa, and Echinodermata. In addition, he introduced 47 genus-group names and 54 names for family-level and higher taxa. This catalog comprises lists of all taxon names published by Luitfried Salvini-Plawen...
October 17, 2017: Zootaxa
https://www.readbyqxmd.com/read/29134026/type-material-of-acanthocephala-nematoda-and-other-non-helminths-phyla-cnidaria-annelida-and-arthropoda-housed-in-the-helminthological-collection-of-the-oswaldo-cruz-institute-fiocruz-chioc-rio-de-janeiro-brazil-from-1979-to-2016
#18
Daniela A Lopes, Delir Corrêa Gomes, Marcelo Knoff
The third part of the catalogue of type material in the Helminthological Collection of the Oswaldo Cruz Institute/FIOCRUZ (CHIOC), comprising types deposited between 1979 and 2016, is presented to complement the first list of all types that was published in 1979. This part encompasses Acanthocephala, Nematoda and the other non-helminth phyla Cnidaria, Annelida, and Arthropoda. Platyhelminthes was covered in the first (Monogenoidea) and second (Rhabditophora Trematoda and Cestoda) parts of the catalogue published in September 2016 and March 2017, respectively...
2017: ZooKeys
https://www.readbyqxmd.com/read/29131534/universal-target-enrichment-baits-for-anthozoan-cnidaria-phylogenomics-new-approaches-to-long-standing-problems
#19
A M Quattrini, B C Faircloth, L F Dueñas, T C L Bridge, M R Brugler, I F Calixto-Botía, D M DeLeo, S Forêt, S Herrera, S Lee, D J Miller, C Prada, G Rádis-Baptista, C Ramírez-Portilla, J A Sánchez, E Rodríguez, C S McFadden
Anthozoans (e.g., corals, anemones) are an ecologically important and diverse group of marine metazoans that occur from shallow to deep waters worldwide. However, our understanding of the evolutionary relationships among the ~7500 species within this class is hindered by the lack of phylogenetically informative markers that can be reliably sequenced across a diversity of taxa. We designed and tested 16,306 RNA baits to capture 720 Ultraconserved Element loci and 1,071 exon loci. Library preparation and target enrichment was performed on 33 taxa from all orders within the class Anthozoa...
November 13, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/29024273/the-first-brain-species-comparisons-and-evolutionary-implications-for-the-enteric-and-central-nervous-systems
#20
REVIEW
J B Furness, M J Stebbing
BACKGROUND: The enteric nervous system (ENS) and the central nervous system (CNS) of mammals both contain integrative neural circuitry and similarities between them have led to the ENS being described as the brain in the gut. PURPOSE: To explore relationships between the ENS and CNS across the animal kingdom. We found that an ENS occurs in all animals investigated, including hydra, echinoderms and hemichordates that do not have a CNS. The general form of the ENS, which consists of plexuses of neurons intrinsic to the gut wall and an innervation that controls muscle movements, is similar in species as varied and as far apart as hydra, sea cucumbers, annelid worms, octopus and humans...
February 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
keyword
keyword
48056
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"