A detailed observation of the ejection and retraction of defense tissue acontia in sea anemone (Exaiptasia pallida).

Abstract:

:Acontia, located in the gastrovascular cavity of anemone, are thread-like tissue containing numerous stinging cells which serve as a unique defense tissue against predators of the immobile acontiarian sea anemone. Although its morphology and biological functions, such as defense and digestion, have been studied, the defense behavior and the specific events of acontia ejection and retraction are unclear. The aim of this study is to observe and record the detailed process of acontia control in anemones. Observations reveal that the anemone, Exaiptasia pallida, possibly controls a network of body muscles and manipulates water pressure in the gastrovascular cavity to eject and retract acontia. Instead of resynthesizing acontia after each ejection, the retraction and reuse of acontia enables the anemone to respond quickly at any given time, thus increasing its overall survivability. Since the Exaiptasia anemone is an emerging model for coral biology, this study provides a foundation to further investigate the biophysics, neuroscience, and defense biology of this marine model organism.

journal_name

PeerJ

journal_title

PeerJ

authors

Lam J,Cheng YW,Chen WU,Li HH,Chen CS,Peng SE

doi

10.7717/peerj.2996

subject

Has Abstract

pub_date

2017-02-21 00:00:00

pages

e2996

issn

2167-8359

pii

2996

journal_volume

5

pub_type

杂志文章

相关文献

PeerJ文献大全
  • Mechanisms of action and in vivo antibacterial efficacy assessment of five novel hybrid peptides derived from Indolicidin and Ranalexin against Streptococcus pneumoniae.

    abstract:BACKGROUND:Antimicrobial peptides (AMPs) are of great potential as novel antibiotics for the treatment of broad spectrum of pathogenic microorganisms including resistant bacteria. In this study, the mechanisms of action and the therapeutic efficacy of the hybrid peptides were examined. METHODS:TEM, SEM and ATP efflux ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3887

    authors: Jindal HM,Zandi K,Ong KC,Velayuthan RD,Rasid SM,Samudi Raju C,Sekaran SD

    更新日期:2017-10-05 00:00:00

  • Hybrid identification in Nothofagus subgenus using high resolution melting with ITS and trnL approach.

    abstract::The genus Nothofagus is the main component of southern South American temperate forests. The 40 Nothofagus species, evergreen and deciduous, and some natural hybrids are spread among Central and Southern Chile, Argentina, New Zealand, Australia, New Guinea and New Caledonia. Nothofagus nervosa, Nothofagus obliqua and ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.6779

    authors: Solano J,Anabalón L,Encina F,Esse C,Penneckamp D

    更新日期:2019-05-09 00:00:00

  • Effects of disputes and easement violations on the cost-effectiveness of land conservation.

    abstract::Conservation initiatives to protect and restore valued species communities in human-dominated landscapes face challenges linked to their potential costs. Conservation easements on private land may represent a cost-effective alternative to land purchase, but long-term costs to monitor and enforce easements, or defend l...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.1185

    authors: Schuster R,Arcese P

    更新日期:2015-08-13 00:00:00

  • The influence of scopolamine on motor control and attentional processes.

    abstract:BACKGROUND:Motion sickness may be caused by a sensory conflict between the visual and the vestibular systems. Scopolamine, known to be the most effective therapy to control the vegetative symptoms of motion sickness, acts on the vestibular nucleus and potentially the vestibulospinal pathway, which may affect balance an...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.2008

    authors: Bestaven E,Kambrun C,Guehl D,Cazalets JR,Guillaud E

    更新日期:2016-05-05 00:00:00

  • Gene flow relates to evolutionary divergence among populations at the range margin.

    abstract:Background:Morphological differentiation between populations resulting from local adaptations to environmental conditions is likely to be more pronounced in populations with increasing genetic isolation. In a previous study a positive clinal variation in body size was observed in isolated Roesel's bush-cricket, Metriop...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.10036

    authors: Kaňuch P,Kiehl B,Cassel-Lundhagen A,Laugen AT,Low M,Berggren Å

    更新日期:2020-10-22 00:00:00

  • Insight into plant cell wall degradation and pathogenesis of Ganoderma boninense via comparative genome analysis.

    abstract:Background:G. boninense is a hemibiotrophic fungus that infects oil palms (Elaeis guineensis Jacq.) causing basal stem rot (BSR) disease and consequent massive economic losses to the oil palm industry. The pathogenicity of this white-rot fungus has been associated with cell wall degrading enzymes (CWDEs) released durin...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.8065

    authors: Ramzi AB,Che Me ML,Ruslan US,Baharum SN,Nor Muhammad NA

    更新日期:2019-12-18 00:00:00

  • Morphological and molecular barcode analysis of the medicinal tree Mimusops coriacea (A.DC.) Miq. collected in Ecuador.

    abstract:Background:Mimusops coriacea (A.DC.) Miq., (Sapotaceae), originated from Africa, were introduced to coastal areas in Ecuador where it is not extensively used as a traditional medicine to treat various human diseases. Different therapeutically uses of the species include: analgesic, antimicrobial, hypoglycemic, inflamma...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.7789

    authors: Bustamante K,Santos-Ordóñez E,Miranda M,Pacheco R,Gutiérrez Y,Scull R

    更新日期:2019-10-11 00:00:00

  • A comparison of freezing-damage during isochoric and isobaric freezing of the potato.

    abstract:BACKGROUND:Freezing is commonly used for food preservation. It is usually done under constant atmospheric pressure (isobaric). While extending the life of the produce, isobaric freezing has detrimental effects. It causes loss of food weight and changes in food quality. Using thermodynamic analysis, we have developed a ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3322

    authors: Lyu C,Nastase G,Ukpai G,Serban A,Rubinsky B

    更新日期:2017-05-18 00:00:00

  • A systematic review of the direct and indirect effects of herbivory on plant reproduction mediated by pollination.

    abstract:Background:Plant reproduction is influenced by the net outcome of plant-herbivore and plant-pollinator interactions. While both herbivore impacts and pollinator impacts on plant reproduction have been widely studied, few studies examine them in concert. Methodology:Here, we review the contemporary literature that exam...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.9049

    authors: Haas SM,Lortie CJ

    更新日期:2020-06-08 00:00:00

  • Stress profile influences learning approach in a marine fish.

    abstract::The spatial learning skills of high and low stress juvenile mulloway (Argyrosomus japonicus) were tested in a dichotomous choice apparatus. Groups of fish were formed based on background blood cortisol levels and required to learn the location of a food reward hidden in one of two compartments. Low stress fish charact...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3445

    authors: Raoult V,Trompf L,Williamson JE,Brown C

    更新日期:2017-06-08 00:00:00

  • Neurodynamic mobilization and foam rolling improved delayed-onset muscle soreness in a healthy adult population: a randomized controlled clinical trial.

    abstract:OBJECTIVES:Compare the immediate effects of a Neurodynamic Mobilization (NM) treatment or foam roller (FR) treatment after DOMS. DESIGN:Double blind randomised clinical trial. SETTING:The participants performed 100 drop jumps (5 sets of 20 repetitions, separated by 2 min rests) from a 0.5-m high box in a University b...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3908

    authors: Romero-Moraleda B,La Touche R,Lerma-Lara S,Ferrer-Peña R,Paredes V,Peinado AB,Muñoz-García D

    更新日期:2017-10-13 00:00:00

  • Worldwide scientific productions with immunotherapy of sepsis: a bibliometric analysis.

    abstract:Background:Sepsis represents a significant healthcare problem worldwide and causes a high number of deaths every year but remains to be fully understood. During and after sepsis, the host immune response is complex and involves an initial excessive host inflammatory response to infection that is closely related to tiss...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.7116

    authors: Wan R,Li L,Xing C,Peng R,Gao L

    更新日期:2019-06-17 00:00:00

  • Dynamics in benthic community composition and influencing factors in an upwelling-exposed coral reef on the Pacific coast of Costa Rica.

    abstract::Seasonal upwelling at the northern Pacific coast of Costa Rica offers the opportunity to investigate the effects of pronounced changes in key water parameters on fine-scale dynamics of local coral reef communities. This study monitored benthic community composition at Matapalo reef (10.539°N, 85.766°W) by weekly obser...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.1434

    authors: Stuhldreier I,Sánchez-Noguera C,Roth F,Jiménez C,Rixen T,Cortés J,Wild C

    更新日期:2015-11-24 00:00:00

  • Morpho-physiological traits, biochemical response and phytoextraction potential of short-term copper stress on kenaf (Hibiscus cannabinus L.) seedlings.

    abstract::Kenaf (Hibiscus cannabinus L.) is a fibrous crop, grown in tropical climate having huge biomass and can be a good candidate for the phytoremediation of different heavy metals. Consequently, the present study was conducted to explore morpho-physiological traits, photosynthetic pigments, gaseous exchange attributes, ant...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.8321

    authors: Saleem MH,Fahad S,Rehman M,Saud S,Jamal Y,Khan S,Liu L

    更新日期:2020-01-30 00:00:00

  • A new ophiacanthid brittle star (Echinodermata, Ophiuroidea) from sublittoral crinoid and seagrass communities of late Maastrichtian age in the southeast Netherlands.

    abstract::A new species of brittle star, Ophiomitrella floorae, is recorded from the lower two meters of the Gronsveld Member (Maastricht Formation), of late Maastrichtian age (c. 66.7 Ma). These relatively fine-grained biocalcarenites reflect shallow-water deposition in a sheltered setting with a relatively firm sea floor and ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.9671

    authors: Thuy B,Numberger-Thuy L,Jagt JWM

    更新日期:2020-08-24 00:00:00

  • Phyllosphere bacterial assembly in citrus crop under conventional and ecological management.

    abstract::Divergences between agricultural management can result in different types of biological interactions between plants and microorganisms, which may affect food quality and productivity. Conventional practices are well-established in the agroindustry as very efficient and lucrative; however, the increasing demand for sus...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.9152

    authors: Carvalho CR,Dias AC,Homma SK,Cardoso EJ

    更新日期:2020-06-02 00:00:00

  • The benefits of Tai Chi and brisk walking for cognitive function and fitness in older adults.

    abstract::The purpose of this study was to investigate the benefits of exercises with different cognitive demands for cognitive functions (Executive and non-Executive) in healthy older adults. A cross-sectional design was adopted. In total, 84 healthy older adults were enrolled in the study. They were categorized into the Tai C...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3943

    authors: Ji Z,Li A,Feng T,Liu X,You Y,Meng F,Wang R,Lu J,Zhang C

    更新日期:2017-10-20 00:00:00

  • Predicting and mapping soil available water capacity in Korea.

    abstract::The knowledge on the spatial distribution of soil available water capacity at a regional or national extent is essential, as soil water capacity is a component of the water and energy balances in the terrestrial ecosystem. It controls the evapotranspiration rate, and has a major impact on climate. This paper demonstra...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.71

    authors: Hong SY,Minasny B,Han KH,Kim Y,Lee K

    更新日期:2013-04-23 00:00:00

  • Climate envelope predictions indicate an enlarged suitable wintering distribution for Great Bustards (Otis tarda dybowskii) in China for the 21st century.

    abstract::The rapidly changing climate makes humans realize that there is a critical need to incorporate climate change adaptation into conservation planning. Whether the wintering habitats of Great Bustards (Otis tarda dybowskii), a globally endangered migratory subspecies whose population is approximately 1,500-2,200 individu...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.1630

    authors: Mi C,Falk H,Guo Y

    更新日期:2016-02-01 00:00:00

  • A juvenile subfossil crocodylian from Anjohibe Cave, Northwestern Madagascar.

    abstract::Madagascar's subfossil record preserves a diverse community of animals including elephant birds, pygmy hippopotamus, giant lemurs, turtles, crocodiles, bats, rodents, and carnivorans. These fossil accumulations give us a window into the island's past from 80,000 years ago to a mere few hundred years ago, recording the...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.2296

    authors: Mathews JC,Samonds KE

    更新日期:2016-09-15 00:00:00

  • Living upside down: patterns of red coral settlement in a cave.

    abstract:Background:Larval settlement and intra-specific interactions during the recruitment phase are crucial in determining the distribution and density of sessile marine populations. Marine caves are confined and stable habitats. As such, they provide a natural laboratory to study the settlement and recruitment processes in ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.4649

    authors: Costantini F,Rugiu L,Cerrano C,Abbiati M

    更新日期:2018-05-21 00:00:00

  • Transcriptome for the breast muscle of Jinghai yellow chicken at early growth stages.

    abstract:Background:The meat quality of yellow feathered broilers is better than the quality of its production. Growth traits are important in the broiler industry. The exploration of regulation mechanisms for the skeletal muscle would help to increase the growth performance of chickens. At present, some progress has been made ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.8950

    authors: Wu P,Zhang X,Zhang G,Chen F,He M,Zhang T,Wang J,Xie K,Dai G

    更新日期:2020-04-15 00:00:00

  • Persistent mosquito fogging can be detrimental to non-target invertebrates in an urban tropical forest.

    abstract:Background:Human population growth has led to biodiversity declines in tropical cities. While habitat loss and fragmentation have been the main drivers of urban biodiversity loss, man-made interventions to reduce health risks have also emerged as an unintentional threat. For instance, insecticide fogging to control mos...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.10033

    authors: Lee NSM,Clements GR,Ting ASY,Wong ZH,Yek SH

    更新日期:2020-10-01 00:00:00

  • Fuelling in front of the barrier-are there age based behavioral differences in Garden Warblers Sylvia borin?

    abstract::Garden Warblers Sylvia borin were studied during autumn stopover in Crete before crossing the barrier of the Mediterranean Sea and the Sahara Desert. Birds followed with transmitters show extensive stopover periods, which were longer in first-year birds, 16 days, compared with adult birds, 14 days. The distribution of...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.319

    authors: Barboutis C,Henshaw I,Kullberg C,Nikolopoulou S,Fransson T

    更新日期:2014-03-25 00:00:00

  • Evolutionary analysis of chloroplast tRNA of Gymnosperm revealed the novel structural variation and evolutionary aspect.

    abstract::Gymnosperms such as ginkgo, conifers, cycads, and gnetophytes are vital components of land ecosystems, and they have significant economic and ecologic value, as well as important roles as forest vegetation. In this study, we investigated the structural variation and evolution of chloroplast transfer RNAs (tRNAs) in gy...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.10312

    authors: Zhang TT,Hou YK,Yang T,Zhang SY,Yue M,Liu J,Li Z

    更新日期:2020-11-25 00:00:00

  • 15-LOX metabolites and angiogenesis: angiostatic effect of 15(S)-HPETE involves induction of apoptosis in adipose endothelial cells.

    abstract::Inflammation is critical in the dysregulated growth of adipose tissue and associated vascular dysfunctions. 15-Lipoxygenase metabolites, important mediators of inflammation in adipose tissue during obese conditions, may contribute to codependence of inflammation and angiogenesis in adipose tissue. We have already repo...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.635

    authors: Soumya SJ,Binu S,Helen A,Reddanna P,Sudhakaran PR

    更新日期:2014-10-21 00:00:00

  • Mesoscale spatiotemporal variability in a complex host-parasite system influenced by intermediate host body size.

    abstract:BACKGROUND:Parasites are essential components of natural communities, but the factors that generate skewed distributions of parasite occurrences and abundances across host populations are not well understood. METHODS:Here, we analyse at a seascape scale the spatiotemporal relationships of parasite exposure and host bo...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3675

    authors: Rodríguez SM,Valdivia N

    更新日期:2017-08-17 00:00:00

  • Structure and expression analysis of seven salt-related ERF genes of Populus.

    abstract::Ethylene response factors (ERFs) are plant-specific transcription factors (TFs) that play important roles in plant growth and stress defense and have received a great amount of attention in recent years. In this study, seven ERF genes related to abiotic stress tolerance and response were identified in plants of the Po...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.10206

    authors: Huang J,Wang S,Wang X,Fan Y,Han Y

    更新日期:2020-10-20 00:00:00

  • Ecological interactions and the Netflix problem.

    abstract::Species interactions are a key component of ecosystems but we generally have an incomplete picture of who-eats-who in a given community. Different techniques have been devised to predict species interactions using theoretical models or abundances. Here, we explore the K nearest neighbour approach, with a special empha...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.3644

    authors: Desjardins-Proulx P,Laigle I,Poisot T,Gravel D

    更新日期:2017-08-10 00:00:00

  • Spermatozoon ultrastructure in two monorchiid digeneans.

    abstract::Spermatological characteristics of species from two monorchiid genera, Opisthomonorchis and Paramonorcheides, have been investigated, for the first time, by means of transmission electron microscopy. The ultrastructural study reveals that the mature spermatozoon of Opisthomonorchis dinema and Paramonorcheides selaris ...

    journal_title:PeerJ

    pub_type: 杂志文章

    doi:10.7717/peerj.2488

    authors: Quilichini Y,Bakhoum AJ,Justine JL,Bray RA,Bâ CT,Marchand B

    更新日期:2016-09-20 00:00:00