99,304 research outputs found
Crossodonthina langshanensis Hu & Jiang & Jiang 2019, sp. nov.
No full textCrossodonthina langshanensis sp. nov. Figures 1, 3, 5, 7–9, 15, 17, 19, Tables 1–3 Type material. Holotype: female, China, Hunan, Xinning county, Langshan National Geopark. Coordinates: 26.277054N, 110.730618E, alt. 520m, in forest, leg. Ji-Gang Jiang, Cheng Jiang, Li-Ping Duan, 30.iv.2018 (J2018043002). Paratypes: 2 females, China, Hunan, Xinning county, Langshan National Geopark. Coordinates: 26.276580N, 110.729240E, alt. 470m, in forest, leg. Ji-Gang Jiang, Cheng Jiang, Li-Ping Duan, 30.iv.2018 (J2018043003); 3 juvenile, Guangxi, Ziyuan county, Langshan National Geopark, Coordinates: 26.276824N, 110.730528E, alt. 510m, nearby the entrance of the Park, leg. Ji-Gang Jiang, Cheng Jiang, Li-Ping Duan, 29.iv.2018 (J2018042901). Type materials are housed in the Key Laboratory of Zoology, Hunan University of Arts and Science (HUAS), Changde, Hunan Province, China. Othermaterial. 2females, China, Hunan, Xinningcounty,LangshanNationalGeopark. Coordinates: 26.276986N, 110.736902E, alt. 527m, in forest, leg. Ji-Gang Jiang, Ya-Hui Hu, Wei Hu, 25.vii.2019 (J2019072502). Diagnosis. 2+2 black eyes on head; labral chaetotaxy as 2/4, 2; cephalic chaeta O present; tubercle Dl on Th. II with 3 chaetae (2+s); mandible with 2 prominent basal teeth and 2 fringed rami of quite different sizes; maxilla with marginal filaments on outer lamella; tubercle Di on Abd. V separated; Description. Body length: holotype 2.4 mm, two paratypes 2.3–2.4 mm, three juveniles 1.0– 1.1mm. Color. Red while living (Fig. 1) and white in alcohol (Fig. 3). Chaetal morphology (Fig. 5). Dorsal ordinary chaetae of five types: Ml (Fig. 5 a–b), Mc (Fig. 5c), Mcc (Fig. 5d), me (Fig. 5 e–f) and mi (Fig. 5h). S-chaetae on terga thin, smooth, shorter than Ml and longer than Mc (Fig. 5g). Head. Eyes 2+2, black. Antenna 4-segmented (Fig. 15). Ant. I with 9 chaetae. Ant. II with 11 chaetae. Ant. III and IV dorsally fused. Dorsal sensory guard chaeta (sgd) on Ant. III not migrated distally, two rods exposed in separate pit. Ant. IV dorsally with 8 slightly thickened and blunt sensilla, apical bulb trilobed. sensory organite (or) present. Ventral chaetotaxy of Ant. IV: ap with 8 bs and 3 miA, ca with 2 bs and 3 miA, cm with 3 bs and 1 miA, cp without miA. On ventral side of Ant. III, Vi, Vc, Ve with 3, 4, 4 chaetae respectively. Buccal cone moderately developed. Labrum truncated, chaetal formula as 2/4, 2 (adult) or 4/4, 2 (juvenile). Labium with 11 chaetae and 2 x (Fig. 17). Mandible complicated (Fig. 8), consisting of 2 rami, 2 definite teeth and some spine-like chaetae. Small ramus consisting of one spine-like chaeta and 7–8 slender chaetae, large ramus developed, with 2 rows of marginal chaetae, 4 strong and spine-like chaetae, marginal chaetae on ramus simple, bifurcated or tri-furcated, about 9-12 spine-like chaetae present on the central area of basal part of the large ramus. The longer ramus about 10 times as long as the small one. Maxilla consisting of two lamellae, the inner lamella much shorter than the outer one, with two minute apical teeth, the outer one with marginal filaments on inner side (Fig. 9). On ventral side of head, group Vi with 6+6 chaetae, groups Vea, Vem and Vep with 4, 3 and 2 chaetae respectively. Dorsal tubercles and chaetotaxy of head as in Tab. 1. and Fig. 7. Dorsal central area with 6 separate tubercles; one tubercle Cl, 2 An, one Fr and 2 Oc, chaeta O absent. Dorsal posterior area with 4 separate tubercles: 2 Di and 2 De. Line of chaetae Di2–De2 crosses line Di1– De1 on head (cross-type, Deharveng 1983). Dorsal lateral area with 1 fused tubercle (Dl+L+So). Thorax (Table 2 & Fig. 7). Th. I with 3+3 tubercles (Di, De, Dl). Th. II and Th. III with 4+4 tubercles respectively, ms on tubercle Dl of Th. II present (its form as in Fig. 5i). Chaetotaxy of thorax and legs as in Table 2. Unguis with a basal inner tooth, unguiculus absent. Chaeta M present on tibiotarsus. Abdomen (Table 2 & Fig. 7). Abd. I–IV respectively with 4+4 tubercles. Abd. V dorsally with 2+2 tubercles, two tubercles Di close to each other, but not fused together, tubercle De fused to Dl, tubercle L present on ventral side. Abd. VI with 1 tubercle on each side, no cryptopygy. VT with 4+4 chaetae. Furcular remnant with 3-4 chaetae (Fig. 19). Etymology. The name of the species derives from the locality where it was collected. Ecology. Among decayed leaves in forest. Remarks. So far, 12 species of genus Crossodonthina were reported worldwide, 11 species were from Asia and only one from Oceania, seven species were reported from China (Jiang & Zhang, 2012). In genus Crossodonthina, three species have 2+2 eyes, they are C. bidentata, C. hainana and C. montana, the new species is the fourth one with 2+2 eyes. In general appearance, Crossodonthina langshanensis sp. nov. strongly resembles Chinese species C. bidentata (Luo & Chen, 2009) in the number of mandible basal teeth, the arrangement of body tubercles, the presence of chaeta O of tubercle Fr, the number of chaetae on VT, and the presence of inner tooth on claw. However, these species can be distinguished by the following features: structure of mandible (in C. langshanensis with two fringed rami, in C. bidentata with three fringed rami), structure of maxilla (in C. langshanensis outer lamella fringed, in C. bidentate outer lamella not fringed), whether the tubercle Di fused on Abd. V or not (in C. langshanensis not fused, in C. bidentate fused), the labral chaeta formula (in C. langshanensis 2/4, 2, in C. bidentata 2/5, 2), number of chaetae (besides of ms) on tubercles Dl of Th. II (in C. langshanensis 3, in C. bidentata 4). The new species is also similar to the 2+2-eyed Chinese species C. montana (Lee & Kim, 1990) and C. hainana (Xiong et al., 2005) in the arrangement of body tubercles, the presence of chaeta O of tubercle Fr, the separate tubercle Di of Abd. V and the presence of 4+4 chaetae on VT. The new species can be separated from the above species by the characters listed in Table 3.Published as part of Hu, Ya-Hui, Jiang, Cheng & Jiang, Ji-Gang, 2019, Two new species of Lobellini from Central-South China (Collembola Neanuridae), pp. 77-89 in Zootaxa 4712 (1) on pages 78-82, DOI: 10.11646/zootaxa.4712.1.5, http://zenodo.org/record/358686
Paraboeremia litseae J. R. Jiang
No full text<p> <i>Paraboeremia litseae</i> J. R. Jiang et al., Mycological Progress. 16: 291. 2017</p> <p>Description.</p> <p>see Jiang et al. (2017).</p> <p>Materials examined.</p> <p> China, Yunnan Province, from diseased leaves of <i>C. sinensis</i>, 23 Mar 2020, Y. C. Wang, culture YCW 1356 and culture YCW 1363.</p> <p>Notes.</p> <p> Isolates of <i>Paraboeremia litseae</i> clustered into a sister clade to <i>P. selaginellae</i> (Fig. 5). It was first isolated from <i>Litsea</i> sp. (Jiang et al. 2017). Conidia produced by <i>P. litseae</i> are oblong to ellipsoidal and aseptate with two large polar guttules (Jiang et al. 2017). This species as an endophytic fungus in <i>Coptis chinensis</i> exhibited obvious inhibition against methicillin-resistant <i>Staphylococcus aureus</i> (Ming et al. 2022). In the present study, two strains were isolated from diseased tea plant leaves. This is the first report of <i>P. litseae</i> causing leaf blight on <i>C. sinensis</i>.</p>Published as part of <i>Wang, Yuchun, Tu, Yiyi, Chen, Xueling, Jiang, Hong, Ren, Hengze, Lu, Qinhua, Wei, Chaoling & Lv, Wuyun, 2024, Didymellaceae species associated with tea plant (Camellia sinensis) in China, pp. 217-251 in MycoKeys 105</i> on pages 217-251, DOI: 10.3897/mycokeys.105.11953
Amynthas yuanjiangensis Sun & Jiang & Wu & Yuan & Qiu 2021, sp. nov.
No full textAmynthas yuanjiangensis Sun & Qiu, sp. nov. (Fig. 4) Type material. Holotype: One clitellate specimen (C-YN201102-01), China, Yunnan Province, Yuanjiang National Nature Reserve (23°39ʹ54ʺN, 101°46ʹ29ʺE), 2096 m asl, by the side of a ditch, under chestnut tree, yellow cinnamon soil; Jul. 16, 2011; J. B. Jiang, J. Sun, X. D. Lei, and H. W. Feng coll. Paratypes: A total of 55 specimens, as follows: One clitellate (C-YN201703-01), China, Yunnan Province, Yulong Snow Mountain Provincial Nature Reserve (27°12ʹ19.6ʺN, 100°16ʹ47.7ʺE), 1451 m asl; Aug. 2, 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. Nine clitellates (C-YN201713-06), China, Yunnan Province, Wuliangshan Nature Reserve (24°46ʹ22.9ʺN, 100°31ʹ12.4ʺE), 2158 m asl; Aug. 5, 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. Nine clitellates (C-YN201719-01), China, Yunnan Province, Dali City, Cangshan National Nature Reserve (25°46ʹ55.1ʺN, 100°05ʹ27.4ʺE), 2364 m asl; Aug. 6, 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. Four clitellates (C-YN201722-01), China, Yunnan Province, Dali City, Yunlong Tianchi National Nature Reserve (25°51ʹ42.1ʺN, 99°17ʹ00.7ʺE), 2621 m asl; Aug. 7, 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. Two clitellates (C-YN201735-08), China, Yunnan Province, Dehong Dai and Jingpo Autonomous Prefecture, Tongbiguan Provincial Nature Reserve (24°08ʹ56.3ʺN, 98°01ʹ31.0ʺE), 957 m asl; Aug. 11, 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. Two clitellates (C-YN201749-01), China, Yunnan Province, Yongdedaxueshan Nature Reserve (25°09ʹ03.1ʺN, 99°42ʹ31.4ʺE), 2122 m asl, 14 Aug. 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. One clitellate (C-YN201756-04), China, Yunnan Province, Lincang City, Nangunhe National Nature Reserve (23°38ʹ58.3ʺN, 99°20ʹ32.9ʺE), 1429 m asl; Aug. 16, 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. Two clitellates (C-YN201762-05), China, Yunnan Province, Lincang City, Nangunhe National Nature Reserve (23°18ʹ54.9ʺN, 99°13ʹ14.4ʺE), 2129 m asl; Aug. 17, 2017; J. B. Jiang, Y. Dong, Q. Zhao, and Z. Yuan coll. Nine clitellates and four aclitellates (C-YN201627-02), China, Yunnan Province, Pu’er City, Jingdong Yi Autonomous County (24°16ʹ09.5ʺ N, 100°45ʹ37.3ʺ E), 1860 m asl, in black sandy soil; Jul. 30, 2016; X. Gao, Y. F. Lu, J. Z. Jiang, J. Long coll. Two clitellates and three aclitellates (C-YN201703-01), China, Yunnan Province, Lijiang City, Yulong Snow Mountain Provincial Nature Reserve (27°12ʹ07.2ʺN, 100°16ʹ51.9ʺE), 3140 m asl, in yellow soil; Aug. 2, 2017; Z. Yuan, J. B. Jiang, Y. Dong, Q. Zhao coll. Four clitellates (C-YN201722-01), China, Yunnan Province, Dali City, Yunlong Tianchi National Nature Reserve (25°51ʹ30.7ʺN, 99°17ʹ03.7ʺE), 2621 m asl, in brown soil; Aug. 7, 2017; Z. Yuan, J. B. Jiang, Y. Dong, Q. Zhao coll. Six aclitellates (C-YN201756-04), China, Yunnan Province, Lincang City, Nangunhe National Nature Reserve (23°38ʹ49.0ʺN, 99°20ʹ36.6ʺE), 1429 m asl, in yellow cinnamon soil; Aug. 16, 2017; Z. Yuan, J. B. Jiang, Y. Dong, Q. Zhao coll. Two clitellates (C-YN201735-08), China, Yunnan Province, Dehong Dai and Jingpo Autonomous Prefecture, Tongbiguan Provincial Nature Reserve (24°08ʹ46.1ʺN, 98°01ʹ32.3ʺE), 957 m asl, in brown soil; Aug. 11, 2017; Z. Yuan, J. B. Jiang, Y. Dong, Q. Zhao coll. Two clitellates (C-YN201762-05), China, Yunnan Province, Lincang City, Nangunhe National Nature Reserve (23°18ʹ45.2ʺN, 99°13ʹ17.4ʺE), 2129 m asl, in brown soil; Aug. 17, 2017; Z. Yuan, J. B. Jiang, Y. Dong, Q. Zhao coll. The habitats of the paratypes were not recorded in detail. Etymology. The name yuanjiangensis is derived from the collection site (Yuanjiang National Nature Reserve) of the holotype. In Chinese, Amynthas yuanjiangensis is Kmũ Ḃḋ. Diagnosis. Medium-sized; four pairs of spermathecal pores in 5/6–8/9; each male pore on the top of a large raised pulvinate pad; no genital papillae in the spermathecal pore and male pore regions; prostate gland partially vestigial in 1/2 XVII–1/2 XIX, or developed; spermathecal diverticulum about ¾ as long as the main spermathecal axis, distal U dilated into a rod-shaped seminal chamber. Description. External characters: Preserved specimens yellowish-brown on dorsum, lacking pigment on ventrum. Mid-dorsal line pigmented. Dimensions 80–135 mm by 3.0–5.0 mm at clitellum; segments 82–110. Secondary annulations present in VI–XIII. Prostomium ¾ epilobous. First dorsal pore in 11/12. Clitellum annular, in XIV–XVI, gray-brown, smooth, swollen, no setae on the ventral side; dorsal pores absent but with vestiges on clitellum. Setae uniformly distributed, 22–30 at III, 30–36 at V, 32–36 at VIII, 38–48 at XX, 46–62 at XXV; 7–9/VII, 7–14/VIII between spermathecal pores, 7–12 between male pores; setal formula AA=1.0–1.2AB, ZZ=1.2–1.3ZY. Spermathecal pores four pairs in 5/6–8/9 (Fig. 4a, sp.p), ventrally separated by slightly more than 0.33 of circumference. Male pores in XVIII, ventrally separated by 0.25 of circumference, each on top of a large raised pulvinate pad, surrounded by two skin folds medially and one rhombus-shaped skin fold laterally in the holotype (Fig. 4a, mp), but no skin fold in paratypes. No genital papillae in male pore region. Female pore single, mid-ventral in XIV, elliptical. Internal characters: Septa 8/9–9/10 absent, 5/6–7/8 thickened and muscular, 10/11–14/15 thicker than those following. Dorsal blood vessel single, continuous onto pharynx; esophageal hearts 4 pairs in X–XIII, all developed. Gizzard bucket-like, in VIII–X; intestinal swelling in XV. Intestinal caeca between simple and complex, originating in XXVII and extending forward to 1/2XXIII, horn-shaped sacs; tiny incisions deeper on dorsal margin than on ventral margin in holotype (Fig. 4b); tiny incisions only on dorsal margin in paratypes C-YN201703-01, CYN201703 -01, C-YN201719-01, and C-YN201735-08. Male organs: testis sacs in X and XI; oval, developed, two lobes connected ventromedially in the first pair and separated ventromedially in the second pair; two pairs of seminal vesicles in XI and XII, first pair separated ventromedially, second pair connected with a slim tube; in holotype, left prostate gland located in 1/2 XVII–1/2 XIX and degenerated into a small and compact lobe, right prostate gland pachytic and developed (Fig. 4c), its duct in XVIII, U-shaped, stout ventrally; prostate glands vestigial in paratypes C-YN201703-01, C-YN201719-0, and C-YN201735-08, but developed in paratype C-YN201713-06; no visible accessory glands on XVIII. Spermathecae paired in VI–IX, about 2.7 mm long; spermathecal ampulla heart-shaped, 2.1 mm long; in holotype, diverticulum about 3/4 as long as the main spermathecal axis, distal 2/5 dilated into a rodshaped seminal chamber; in paratypes C-YN201703-01, C-YN201713-06, C-YN201722-01, and C-YN201735-08, diverticulum about 1/2 as long as the main spermathecal axis, distal 1/2–1/3 dilated into rod-shaped seminal chamber; in paratype C-YN201719-01, diverticulum about 2/5 as long as the main spermathecal axis, distal 1/3 dilated into rod-shaped seminal chamber; no nephridia on spermathecal ducts (Fig. 4d). Variation. The prostate glands are either degenerated or developed. DNA barcodes. GenBank accession numbers KF205466 (C-YN201102-01, holotype), MH 845539 (CYN201703 -01, paratype), MH 845531 (C-YN201713-06, paratype), MH 845522 (C-YN201719-01, paratype), MH 845514 (C-YN201722-01, paratype), MH 845487 (C-YN201735-08, paratype), MH 845470 (C-YN201749- 01, paratype), MH 845460 (C-YN201756-04, paratype), MH 845451 (C-YN201762-05, paratype), MH 837679 (C-YN201627-02, paratype), MH 845539 (C-YN201703-01, paratype), MH 845514 (C-YN201722-01, paratype), MH 845460 (C-YN201756-04, paratype), MH 845487 (C-YN201735-08, paratype), MH 845451 (C-YN201762-05, paratype). Remarks. A. yuanjiangensis sp. nov. keys to the Amynthas corticis -group (Sims & Easton, 1972), characterized by four spermathecal pores located intersegmentally in 5/6–8/9 and by holandry. By now, there are 109 species belonging into A. corticis -group totally (Nguyen et al. 2020a). The combined characters of medium-sized body, male pore on the top of a large raised pulvinate pad, no genital papillae in the spermathecal pore and male pore regions, intestinal caeca between simple and complex, prostate gland partially vestigial or developed, and rod-shaped spermathecal seminal chamber make this new species different from the species reported from China in A. corticis -group. This new species is similar to Amynthas fornicates (Gates, 1935) in medium-sized body, no genital papillae in the male pore region, and the arrangement of spermathecal pores. However, in A. yuanjiangensis sp. nov., the intestinal caeca are between simple and complex, the prostate glands are partially degenerated, and the spermathecal diverticulum shorter than the main spermathecal axis; however, in A. fornicates, the intestinal caeca are simple, the prostate glands are developed, and the spermathecal diverticulum is longer than the main spermathecal axis. A. yuanjiangensis sp. nov. is resemble Amynthas homochaetus (Chen, 1938) in the large raised pulvinate pad of male pore area, no genital papillae on spermathecal pore region and male pore region especially. But A. yuanjiangensis sp. nov. is clearly distinguished from A. homochaetus by the following characters: 1) the intestinal caeca in A. homochaetus are simple, but in this new species, they are between simple and complex; 2) the prostate glands in A. homochaetus are well developed, but in the new species, they are partially degenerated; 3) the seminal chambers in A. homochaetus are ovoid, but those in the new species are rod-shaped. Amynthas disperses Sun & Qiu, 2018 and A. yuanjiangensis sp. nov. have both been collected in several localities in South China, and share some characters (e.g. megium-sized body, the area of male pore porophore is bigger, partially vestigial prostate gland, and band- or rod-shaped seminal chamber), but they are different from each other in the following ways: 1) the first dorsal pore is located at 10/11 or 11/12 on A. disperses, but always at 11/ 12 in the new species; 2) small genital papillae are always present in the spermathecal pore and male pore region in A. disperses, but there are no genital papillae in the new species; 3) the intestinal caeca in A. disperses are simple, but those in this new species are between simple and complex; 4) the spermathecal diverticulum is about as long as the main spermathecal axis in A. disperses, but shorter than the main spermathecal axis in the new species.Published as part of Sun, Jing, Jiang, Ji-Bao, Wu, Juzhen, Yuan, Zhu & Qiu, Jiang-Ping, 2021, Three new widely distributed and polymorphic species of Amynthas earthworms (Oligochaeta, Clitellata, Megascolecidae) from South China, pp. 457-474 in Zootaxa 4938 (4) on pages 464-467, DOI: 10.11646/zootaxa.4938.4.5, http://zenodo.org/record/457494
The evolution of surfaces and their measurement
No full textSurfaces and their interactions are at the heart of living systems and all moving objects.
They have fascinated man from the ancient Egyptians, through Leonardo Da Vinci in the
Renaissance period, to nanotechnologists of today. This paper elucidates the science of
surfaces and their interactions, covering the importance of surfaces and how they influence us
all in terms of energy, environment and quality of life. It attempts to uncover the story of
mankind‟s deepening understanding of surfaces and their measurement, and to provide an
overview of surface measurement and shows how current thinking has evolved from a
complicated historical background
Correction: Kinetics of trifurcated electron flow in the decaheme bacterial proteins MtrC and MtrF (Proceedings of the National Academy of Sciences of the United States of America (2019) 116 (3425-3430) DOI: 10.1073/pnas.1818003116)
No full textCorrection for "Kinetics of trifurcated electron flow in the decaheme bacterial proteins MtrC and MtrF," by Xiuyun Jiang, Bastian Burger, Fruzsina Gajdos, C. Bortolotti, Zdenek Futera, Marian Breuer, and Jochen Blumberger, which was first published February 12, 2019; 10.1073/pnas.1818003116 (Proc. Natl. Acad. Sci. U.S.A. 116, 3425-3430)
Vrsanskysajda Jiang, Xing & Li, 2023, nom. nov.
No full textGenus Vrsanskysajda nom. nov. Sajda Vršanský, 2021: 27 (Blattaria: Corydiidae: Holocompsinae). Preoccupied by Sajda Dworakowska, 1981: 244 (Homoptera: Cicadellidae: Typhlocybinae). Type species: Vrsanskysajda equatorialis (Vršanský in Vršanský et al. 2021) comb. nov. Etymology. The replacement name for the genus is derived from the name of Peter Vršanský, the author of the genus Sajda. Gender: feminine. Distribution. Brezina, Algeria.Published as part of Jiang, Lina, Xing, Jichun & Li, Yujian, 2023, New replacement name for the genus Sajda Vršanský, 2021 (Blattaria: Corydiidae: Holocompsinae), pp. 343-344 in Zootaxa 5270 (2) on page 343, DOI: 10.11646/zootaxa.5270.2.10, http://zenodo.org/record/784970
Virgibacillus xinjiangensis sp. nov., isolated from a salt lake of Xin-jiang province in China
No full textA strictly aerobic Gram-positive, moderately halophilic spore forming bacterium, designated strain SL6-1T, was isolated from a salt lake in Xin-jiang province, China. Growth of strain SL6-1T was observed at NaCl concentrations of 0~20% (w/v) (the optimum being 5~7%, w/v). The peptidoglycan type of strain SL6-1T was Alγ-meso-diaminopimelic acid and its major cellular fatty acids were iso-C14:0 and iso-C16:0 and ante-iso-C15:0. The major respiratory isoprenoid quinone was MK-7 and the G+C content of the genomic DNA was 44.5 mol%. The major cellular phospholipids were phosphatidylglycerol and diphosphatidylglycerol. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SL6-1T formed a phylogenetic lineage within the genus Virgibacillus. Based on 16S rRNA gene sequence similarity, the strain was most closely related to Virgibacillus olivae E308T, Virgibacillus kekensis YIM kkny16T, Virgibacillus marismortui DSM 12325T with 97.1%, 97.1%, and 97.0% gene sequence similarities, respectively and the sequence similarities to other related taxa were less than 96.7%. The DNA relatedness values between strain SL6-1T and V. olivae E308T, V. kekensis YIM kkny16T, V. marismortui DSM 12325T were 16.7%, 51.0%, and 22.8%, respectively. On the basis of physiological, biochemical and phylogenetic properties, strain SL6-1T represents a novel species, for which the name Virgibacillus xinjiangensis sp. nov. is proposed. The type strain is SL6-1T (=KCTC 13128T =DSM 19031T).open
Pilosarachnidae Jiang & Li
No full textFamily † Pilosarachnidae Jiang & Li, fam. nov. Type genus. Pilosarachne Jiang & Li, gen. nov. Diagnosis. Pilosarachnidae Jiang & Li, fam. nov. can be distinguished from Synspermiata by the presence of AME and the morphology of bulb which is not piriform; from Araneoidea and Palpimanoidea by the presence of cribellum; from Dionycha of RTA clade by the presence of ITC. The new family resembles modern cribellate RTA clade spiders (e.g., members of marronoid clade such as Dictynidae O. Pickard-Cambridge, 1871, Desidae Pocock, 1895, etc.) by the shape of cymbium, attaching angle of bulb relative to cymbium and the arrangement of tegular apophyses (Figs 3A–D), but can be easily distinguished by the absence of an RTA and the presence of serrate accessory claw setae. Pilosarachnidae Jiang & Li, fam. nov. resembles Hersiliidae Thorell, 1870 by the presence of feathery scales (in the sense of Griswold et al., 2005), discoid tegulum, presence of median apophysis and filiform embolus, but can be distinguished from the latter by the short clypeus, eye domain in an anterior-most position rather than in the center of the carapace, posterior lateral spinnerets not elongated and the presence of cribellum. The family also resembles Deinopidae C. L. Koch, 1850 and Uloboridae Thorell, 1869 by the presence of abundant feathery scales, a cribellum, and serrate accessory claw setae, but can be distinguished from both families by the absence of tarsal spines and contiguous lateral eyes; and additionally, from Deinopidae by the absence of enlarged PME and coiled embolus; and from Uloboridae by the absence of femoral trichobothria. As for the extinct cribellate families at the same time and locality (i.e., Kachin amber), Pilosarachnidae Jiang &Li, fam. nov. can generally be distinguished from most cribellate families by the presence of rich feathery scales on carapace, abdomen and all appendages, such as † Alteruloboridae Wunderlich, 2018, † Frateruloboridae Wunderlich, 2018, † Praearaneidae Wunderlich, 2017 and † Protoaraneoididae Wunderlich, 2018 (Wunderlich, 2017; Wunderlich & Müller, 2018). Pilosarachnidae Jiang & Li, fam. nov. resembles † Mongolarachnidae Selden et al., 2013 (occurs in Jurassic Daohugou bed and Kachin amber; Selden et al., 2011, 2013; Wunderlich, 2015, 2017) by the presence of serrate accessory claw setae, and with the presence of femoral spines and apical spines on male palpal tibia, but can be distinguished by the following combination of characters: 1. the absence of extremely long femur of male palp (palpal femur of almost identical length to femur III and shorter than carapace length), while male palpal femur in two subfamilies of Mongolarachnidae (Longissipalpinae and Pedipalparaneinae) is longer than femur III and the length of carapace; 2. the contiguous lateral eyes; 3. the spoon-like membranous conductor (Figs 3A–B, D), while in Mongolarachnidae the conductor is absent (see Selden et al., 2013: 1175, fig. 2f) or a filiform tegular apophysis (e.g., Wunderlich, 2015: 383–384, figs 186–190) or a fork-like sclerotized apophysis (see Wunderlich, 2015: 384, fig. 197) is present instead. Wunderlich (2015) provided a set of characters for Mongolarachnidae with description of two new genera from this family, i.e., Longissipalpus Wunderlich, 2015 and Pedipalparaneus Wunderlich, 2015, in which he concluded that feathery hairs (equivalent to feathery scales in Griswold et al., 2005) are absent in this family. However, after examining our own specimens, we found that feathery scales are actually present in both Longissipalpus and Pedipalparaneus. Thus, we do not distinguish Pilosarachnidae Jiang & Li, fam. nov. and Mongolarachnidae base on the existence of feathery scales. Additionally, Pilosarachnidae Jiang & Li, fam. nov. has a remarkable autapomorphy, the serrate structure on the prolateral-proximal margin of the tegulum, near the base of embolus (Figs 3B, D). This character is unique in comparison to other known spiders from Kachin amber. However, the detailed structures on male palp are highly variable at species-level and shouldn’t be considered for higher-level classification (Ramírez, 2014), so we do not exclude the possibility that undiscovered species from the same family will lack such a structure. Description. Medium-sized cribellate spider from Kachin amber. Three tarsal claws (Figs 2B–C), serrate accessory claw setae present; eight eyes, ALE and PLE contiguous (Fig. 2E); fovea distinct, longitudinal; body and appendages covered by dense feathery scales; spines numerous on legs but absent on tarsi, spines forming a ring at apex of each metatarsi (Fig. 2A); paracymbium absent; tibia of male palp without apophyses, embolus with pars pendula (a membranous structure that accompanies embolus), conductor and median apophysis present, and with a serrate structure on tegulum, present near base of embolus (Figs 3A–D). Distribution. Late Cretaceous Kachin amber, Myanmar.Published as part of Jiang, Tongyao, Xin, Yafei, Yao, Zhiyuan & Li, Shuqiang, 2020, Two new spider families from Late Cretaceous Kachin amber (Arachnida: Araneae), pp. 266-280 in Zoological Systematics 45 (4) on pages 267-268, DOI: 10.11865/zs.202033, http://zenodo.org/record/536723
Inventing A Wolfish China - On Jiang Rong'S Wolf Totem
No full textThe Wolf Totem by Jiang Rong has won great success both in and out of China. Jiang Rong criticizes Han Chinese and embraces the culture of the northern ethnic minority group, the Mongols, because of its stronger sense of competition and domination. In the epilogue of this novel, Jiang argues that the wolf totem was the most ancient totem for all Chinese people and retells Chinese history using this framework. This paper explores the background of the novel and its author, as well as supporting materials the author uses in his proposal concerning the wolf totem, and suggests that the wolf totem is a purely ideological invention of Jiang Rong. This invention reflects Jiang's own philosophy and caters to the cultural needs of modern Chinese people. In inventing the wolf totem, the author uses historical documents, archeological findings, as well as a far-fetched bodily metaphor. However, none of this evidence is validated by scholarly research
On -Algebras associated to Horocycle Flows
No full textThis thesis is mainly concerned with the study of the crossed product -algebras associated to the horocycle flow on compact quotients of \SL(2,\rr). Looking at the Cuntz semigroup, we retrieve some information about the structure of hereditary -subalgebras and Hilbert modules for a class of -algebras which contain the -algebras we want to study. After translating these results in our context, we study the functoriality of the construction both for the case of discrete subgroups of \SL(2,\rr) and for the case of hyperbolic Riemann surfaces. Also properties of another crossed product -algebra that is Morita equivalent to the -algebra of the horocycle flow are explored and from considerations about the associated dynamical system we can prove that the multiplier algebra of the crossed product -algebra associated to the horocyce flow contains a Kirchberg algebra in the UCT class as a unital -subalgebra in some cases.\\
A side chapter is devoted to a project that the author started during his PhD, concerning the construction of spectral triples on the Jiang-Su algebra. The construction we give is performed by means of a particular -embedding
- …
