6,359 research outputs found
Alienigena Cheng, Ho & Dai, 2016, gen. nov.
No full textAlienigena gen. nov. Diagnosis. Body elongate and slender. Segmentation of body indistinct. Cephalosome triangular, with prominent posterolateral expansions in dorsal view. Urosome 4-segmented in female and 5-segmented in male. Caudal ramus with six setae. Antennule 7-segmented. Antenna 4-segmented; third segment with three setae; fourth segment tipped with one well developed terminal claw. Mandible weakly bilobate along inner margin and with large process on convex side. Maxillule with four setae. Maxilla 2-segmented; second segment terminating in distal lash. Maxilliped 3-segmented in female; 4-segmented in male. Legs 1–4 biramous with 3-segmented exopods and 1- (leg 4) or 2-segmented endopods (legs 1–3). Leg 5 reduced, represented by three setae. Leg 6 represented by two setae. No sexual dimorphism in legs 1–4. Type species. Alienigena triangula gen. et sp. nov. (by original designation). Etymology. The generic name is derived from the Latin “ Alienigena ”, meaning stranger. It refers to the most remarkable and unique features such as the body shape and armature of legs 1–4 in the type species. Gender feminine.Published as part of Cheng, Yu-Rong, Ho, Ming-Jay & Dai, Chang-Feng, 2016, Four anchimolgid copepods (Poecilostomatoida: Anchimolgidae) associated with the scleractinian coral Pavona explanulata (Lamarck, 1816) in Taiwan, pp. 274-290 in Zootaxa 4174 (1) on page 275, DOI: 10.11646/zootaxa.4174.1.19, http://zenodo.org/record/26074
Caligus lini n. sp., a new caligid (Copepoda, Siphonostomatoida) parasitic on the brilliant pomfret Eumegistus illustris Jordan & Jordan (Perciformes, Bramidae) of Taiwan
No full textHo, Ju-Shey, Cheng, Yu-Rong (2016): Caligus lini n. sp., a new caligid (Copepoda, Siphonostomatoida) parasitic on the brilliant pomfret Eumegistus illustris Jordan & Jordan (Perciformes, Bramidae) of Taiwan. Zootaxa 4079 (1), DOI: 10.11646/zootaxa.4079.1.
FIGURE 1. Caligus lini n in Caligus lini n. sp., a new caligid (Copepoda, Siphonostomatoida) parasitic on the brilliant pomfret Eumegistus illustris Jordan & Jordan (Perciformes, Bramidae) of Taiwan
No full textFIGURE 1. Caligus lini n. sp., female. A, habitus, dorsal; B, genital complex and abdomen, ventral; C, caudal ramus, dorsal; D, antennule. Scale bars: 0.5 mm in A and B; 0.05 mm in C and D.Published as part of Ho, Ju-Shey & Cheng, Yu-Rong, 2016, Zootaxa 4079 (1), DOI: 10.11646/zootaxa.4079.1.2, http://zenodo.org/record/26218
FIGURE 2. Caligus lini n in Caligus lini n. sp., a new caligid (Copepoda, Siphonostomatoida) parasitic on the brilliant pomfret Eumegistus illustris Jordan & Jordan (Perciformes, Bramidae) of Taiwan
No full textFIGURE 2. Caligus lini n. sp., female. A, antenna and post-antennal process; B, maxillule; C, maxilla; D, maxilliped; E, sternal furca; F, mandible. Scale bars: 0.1 mm in A, C, and D; 0.05 mm in B, E, and F.Published as part of Ho, Ju-Shey & Cheng, Yu-Rong, 2016, Zootaxa 4079 (1), DOI: 10.11646/zootaxa.4079.1.2, http://zenodo.org/record/26218
Caligus lini Ho & Cheng, 2016, n. sp.
No full text<i>Caligus lini</i> n. sp. <p>(Figs 1–3)</p> <p> <b>Type material.</b> Four adult ♀♀ obtained from gill rakers (1 individual) and caudal fin (3 individuals) of 42 brilliant pomfret, <i>Eumegistus illustris</i> Jordan & Jordan 1922, landed at Cheng-Gong Fishing Port in Tai-Dong County between September 2014 and August 2015. Holotype ♀ (ASIZCR000329) deposited in the Biodiversity Research Museum, Academia Sinica, Taipei, Taiwan, and 3 ♀♀ paratypes (NTUIO –COPEPOD s002) deposited in the Institute of Oceanography, National Taiwan University, Taipei, Taiwan.</p> <p> <b>Description.</b> Body (Fig. 1 A) 4.78 (4.70–4.82) mm long, excluding setae on caudal ramus. Cephalothoracic shield subcircular, 3.67 mm long and 2.28 mm wide, excluding lateral, hyaline membrane. Fourth pediger distinctly wider than long, 0.79 (0.77–0.81) × 0.38 (0.37–0.40) mm. Genital complex (Fig. 1 B) subquadrate, 1.50 (1.46–1.52) × 1.67 (1.65–1.69) mm, with posterolateral protrusions. Abdomen (Fig. 1 B) 1-segmented and longer than wide, 0.59 (0.58–0.60) × 0.40 (0.39–0.41) mm. Caudal ramus (Fig. 1 C) slightly longer than wide, 110 (108– 111) × 99 (97–100) µm, armed with usual 3 short and 3 long plumose setae, dorsal surface bearing 3 sensilla and posteromedial margin ornamented with a row of setules. Egg sac 7.62 (7.40–7.84) mm long.</p> <p>Antennule (Fig. 1 D) 2-segmented. Proximal segment strong, carrying 25 setose and 2 naked (on dorsal side) setae on anterodistal surface; distal segment short, cylindrical, about 2.25 times as long as wide, with 1 subterminal seta on posterior margin and 11 setae plus 2 aesthetascs on distal margin.</p> <p>Antenna (Fig. 2 A) 3-segmented; proximal segment with blunt process on posteromedial corner, second segment squarely and unarmed, distal segment represented by long, curved claw bearing 2 setae, one proximal and other one close to medial region. Postantennal process (Fig. 2 A) represented by bluntly tipped spine with two papillae on basal region bearing 3 setules, another similar setule-bearing papilla close to cephalon.</p> <p>Mandible (Fig. 2 F) with 4 sections; proximal 3 sections unarmed, distal section forming slender blade bearing 12 teeth along medial margin (arrowed in Fig. 2 F). Maxillule (Fig. 2 B) comprising large stout dentiform process and proximal basal papilla armed with 3 unequal setae; another small process situated by basal papilla. Maxilla (Fig. 2 C) 2-segmented; proximal segment (lacertus) unarmed; slender distal segment (brachium) with subterminal outer short spiniform element ornamented only on outer edge; terminal calamus longer than subterminal canna, both elements pinnate along medial and outer margins. Maxilliped (Fig. 2 D) 3-segmented, with distal 2 segments almost completely fused to form subchela; proximal segment (corpus) unarmed; middle (shaft) and distal (claw) segments each carrying minute seta; claw strongly bent at tip. Box of sternal furca (Fig. 2 E) indistinct; tines blunt, widely divergent.</p> <p>Armature on rami of legs 1–4 as follows (Roman numerals indicating spines and Arabic numerals, setae): Leg 1 (Fig. 3 A) protopod carrying simple outer seta and another similar inner seta in addition to a vestigial endopod; first segment of exopod with row of setules along posterior margin plus small, spiniform outer seta; middle 2 of 4 terminal spines on last exopodal segment simple (without accessary process) (arrow in Fig. 3 A); fourth terminal element smallest and shortest.</p> <p>Leg 2 (Fig. 3 B) protopod carrying large plumose inner seta on posteromedial edge, setule-bearing papillae on ventral surface, and small, simple, outer seta; posterior edge of protopod fringed with marginal membrane and outer edge of endopodal segments together with medial edge of proximal two exopodal segments fringed with row of setules.</p> <p>Leg 3 (Fig. 3 C) protopod (apron) with short outer and long inner setae; wide marginal membrane on outer edge and another marginal membrane on posterior edge of basis inner to velum; ventral surface of protopod with patches of spinules as shown in Fig. 3 C.</p> <p>Leg 4 (Fig. 3 D) protopod with small, simple outer seta; exopod 2-segmented; proximal segment of exopod with single, moderately long spine; tip of exopod with 2 short outer and 1 long, inner elements (outermost element a simple seta; inner 2 elements spiniform); pecten on exopodal segments at insertion of proximal outer and distal innermost spines.</p> <p>Leg 5 (Fig. 3 E) comprising 2 processes with simple anterior process tipped with 1 plumose seta and quadripartite posterior process carrying 3 (1 simple and 2 plumose) setae. Leg 6 absent.</p> <p> <b>Male.</b> Unknown.</p> <p> <b>Etymology.</b> The new species is named after the late Professor Ching-Long Lin (Department of Aquatic Biosciences, National Chiayi University) who made great contributions to our knowledge on the parasitic copepod fauna of Taiwan.</p> <p> <b>Type locality.</b> Off Tai-Dong County, Taiwan.</p> <p> <b>Type host.</b> <i>Eumegistus illustris</i> Jordan & Jordan 1922</p> <p> <b>Infection site and intensity.</b> One individual and three individuals of copepods appear on the gill rakers and caudal fin, respectively. Prevalence: 0–18.2%; mean intensity: 1.0–1.5 parasites per fish specimen (Table. 1).</p>Published as part of <i>Ho, Ju-Shey & Cheng, Yu-Rong, 2016, Caligus lini n. sp., a new caligid (Copepoda, Siphonostomatoida) parasitic on the brilliant pomfret Eumegistus illustris Jordan & Jordan (Perciformes, Bramidae) of Taiwan in Zootaxa 4079 (1)</i>, DOI: 10.11646/zootaxa.4079.1.2, <a href="http://zenodo.org/record/262184">http://zenodo.org/record/262184</a>
Structure characterization of the 26S proteasome
No full textIn all eukaryotic cells, 26S proteasome plays an essential role in the process of ATP-dependent protein degradation. In this review, we focus on structure characterization of the 26S proteasome. Although the progress towards a high-resolution structure of the 26S proteasome has been slow, the recently solved structures of various proteasomal subcomplexes have greatly enhanced our understanding of this large machinery. In addition to having an ATP-dependent proteolytic function, the 26S proteasome is also involved in many non-proteolytic cellular activities, which are often mediated by subunits in its 19S regulatory complex. Thus, we include a detailed discussion of the structures of 19S subunits, including proteasomal ATPases, ubiquitin receptors, deubiquitinating enzymes and subunits that contain PCI domain. This article is part of a Special Issue entitled The 26S Proteasome: When degradation is just not enough! (c) 2010 Elsevier B.V. All rights reserved
Evidence of hyperpycnal flows at the head of the meandering Kaoping Canyon off SW Taiwan
No full text
The Relationship Between Pretend Play and Playfulness in Children With Autism Spectrum Disorder
No full textAbstract
Date Presented 3/30/2017
This study explored the relationship between pretend play and playfulness in children with autism spectrum disorder (ASD). Our findings suggest that it is important to assist children with ASD to engage in pretend play, for doing so could promote their internal experience of playfulness.
Primary Author and Speaker: Hsiu-Man Chiu
Additional Authors and Speakers: Kuan-Lin Chen
Contributing Authors: Ya-Chen Lee, Cheng-Te Chen, Chien-Ho Lin, Yu-Ching Lin</jats:p
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