103,872 research outputs found
Luridiblatta graeca Bohn 2022, sp. nov.
No full text10. Luridiblatta graeca, sp. nov. Figs. 6D, 31A–L, 32A–G, 33H–J, 35F, 36D, 43 Diagnosis. From L. cyprica and L. beybienkoi distinguished mainly by two characters: the edge, a lateral continuation of the anterior border of the pit openening (ed in Fig. 33H–J), and the massive and more or less club-shaped glandular tubules (tu in Figs. 31D, 32C, 33I,J). Etymology. The species name refers to the hitherto known distribution of the species restricted to the country Greece (Crete and continental Greece). Material studied. Type material. Holotype, 1♂, CRETE, 3 km N Mirtos (15 km W Ierapetra), 50 m, 27.VIII.1978, leg. B. & H.Bohn (completely on two slides: Kr 23/2). (Coll. Bohn, ZSMC). Additional material. — GREECE. Nom. Aetolia-Arkanania: 1♀, btw. Ag. Nikólaos & Vónitsa, 20 m, 4.IX.1982, leg. B. & H.Bohn (Gr 33).— Nom. Chalkidiki: 33♂, 22♀, num. L, Sithoniá, 5 km N Sártí, 50 m, 19./ 28. VIII.1977 (slides: ♂, Gr 1/1,2,4–6; ♀, Gr 1/3,7–9). (Coll. Bohn, ZSMC).— CRETE. Nom. Hanion: 6♂, 38L, Elafonisi Bay (3 km S Hrisokalitissa), 5 m, 7.VIII.78, leg. B. & H.Bohn (slides: ♂, Kr 3/1,2); 10♂, 3♀, 1L, Kalami (7 km E Souda), 0 m, 12.VIII.78, leg. B. & H.Bohn (slides: ♂, Kr 10/1,4,5; ♀, Kr 10/2,3).— Nom. Irakliou: 5♂, 6♀, 3L, Koxari (25 km ESE Iraklio), 150 m, 18.VIII.78, leg. B. & H.Bohn (slides: ♂, Kr 15/1; ♀, Kr 15/2); 9♂, 2♀, 1L, Festos, 100 m, 30.VIII.78, leg. B. & H.Bohn (slides: ♂, Kr 25/1–3).— Nom. Lasithiou: 6♂, 1♀, 3L, Vai (7 km N Palekastro), 5 m, 24.VIII.78, leg. B. & H.Bohn (slides: ♂, Kr 20/1,2; L, Kr 20/3); 33♂, 50♀, 10 O, Mt. Vigla Zakrou, 2 km SW Zákros, 300 m, 24./ 25.VIII.78, leg. B. & H.Bohn (slides: ♂, Kr 21/1–6,8,9,17,18; ♀, Kr 21/7,19); 1♀, 5L, btw. Agia Fotia & Ferma (10 km E Ierapetra), 5 km, 26.VIII.78, leg. B. & H.Bohn (Kr 22); 9♂, 13♀, 3L, same data as holotype (slides: ♂, Kr 23/1; ♀, Kr 23/3–5). (Coll. Bohn, ZSMC). Description. Size. Male. Crete: Length of pronotum 1.86–2.05 (mean 1.95) mm, length of tegmina 4.54–5.44 (mean 4.94) mm. (N = 12/12). Female. Crete and Greece: Length of pronotum (mean) 1.98 mm, length of tegmina (mean) 2.37 mm. (N = 3/10). T6: Distance between the anterior bristle stripes as % of tergite breadth: range 14.6– 24.7, mean 19.8. (N = 9). Female tegmina. Apical border shallowly concave (Figs. 31H, 32B). Male abdomen. Tergites. Fig. 31A–F. T 6. Highly specialised as described under characters of the genus and the beybienkoi -group; in the main structures not differing from the other species of the group (Fig. 6D). Two alleged specialties visible in this figure, a membraneous transversal fold (fo) and a w-shaped dark line between the anterior bristle stripes (arrowhead) are occasionally also found in other species of the beybienkoi- group. The comparison with the other species (Figs. 1D, 6B,C) shows, however, that there are differences in the distance between the anterior bristle stripes; the distance is smallest in L. graeca (mean: 19.8% of the breadth of the tergite; L. beybienkoi 22.3%, L. quadrivittata 23.4 %, L. cyprica 25.7%). But since there is considerable overlap between the species (see corresponding values for each species under “ Size ”) these differences are of little value for species separation. T7. Pit. Anterior border (ab) of the pit opening laterally continuing into an narrow fold or edge (ed) converging with the gutter (gu) and approaching it closely near the lateral border of the tergite (Figs. 31D, 33H–J); pit size: up to size 5 (Fig. 31D); anterior pit wall (aw) with transparent windows (w), stabilising bracelet (s), window frame (wf), and transversal folds (tf, Fig. 32C–G); posterior pit wall (pw) with a pair of bulges (bu), either shallowly bowlshaped (Fig. 32F), or, more often, with a strange rectangular appearance (Fig. 33H–J). Glandular pouches (gp) long, tubules (tu), short, more or less club-shaped, rather massive, in nearly every preparation well visible (Figs. 31D, 33J). Genital hook. Claw (cl) as in L. cyprica with a large crest (cr) having two antlerlike processes (an, Fig. 31K,L). Distribution. Crete and Nom. Chalchidiki and Aetolia-Akarnia of continental Greece IV. Doubtful species The fourth group of species assembles two possible new species, which due to the incompleteness of the knowledge of their characters cannot yet be established as new species.Published as part of Bohn, Horst, 2022, Revision of the genus Luridiblatta (Blaberoidea, Ectobiidae, Ectobiinae), pp. 1-72 in Zootaxa 5215 (1) on pages 21-22, DOI: 10.11646/zootaxa.5215.1.1, http://zenodo.org/record/740338
Dziriblatta (Dziriblatta) brevisacculata Bohn 2021, spec. nov.
No full text2. Dziriblatta (Dziriblatta) brevisacculata, spec. nov. Figs. 2E, I, 3D–G, 4A–J, 5A–C, 27, 28, 29 Etymology. The species name refers to the short (Latin: brevis) pouch (Latin: saccus) lobes of the T7 gland of males, when compared to Dz. (Dz.) bolivari. Material studied. Type material. SPAIN. Holotype, ♂, Prov. Málaga, Sierra Bermeja, btw. Mt. Reales & Pto. de Peñas Blancas, 1400 m, 4.V.1990, leg. B. & H.Bohn (completely on two slides: Sp 193a/2). (MNMS). Additional material. SPAIN. 3♂, 2♀, 1O, Prov. Málaga, Serranía de Ronda, Cortijo de Montero (10 km SSW Ronda), 1000 m, 5.IV.1990, leg. B. & H.Bohn (slides: 3♂, Sp 186a/5,8,9); Prov. Málaga, Sierra Bermeja, btw. Estepona & Pto. de Peñas Blancas, 600 m: 3♂, 17♀, 1. V.1997 leg. B. & H.Bohn (slides: 3♂, Sp 192a/1-3) / 1♀, 23.III.2000, leg. T. Knebelsberger (Sp 192b); same locality and collectors as holotype: 2♀, 7. VI.1989 (Sp 193) / 3♂, ex L: 1♀, 4. V.1990 (slides: 2♂, Sp 193a/3,4) / 6♂, 10♀, 1L, 1. V.1997 (slides: 3♂, Sp 193b/1-3); 9♂, 13♀, 2O, Prov. Málaga, 4.5 km E Villanueva de Cauche (30 km N Málaga), 900 m, 30.IV.1997, leg. B. & H.Bohn (slides: 6♂, Sp 457/1–6); 14♂, 24♀, 1L, Prov. Málaga, btw. Ganeín & Algotocín (31 km SW Ronda), 750 m, 1. V.1997, leg. B. & H.Bohn (slides: 4♂, Sp 458/1–4); 1♂, Prov. Malaga, Serranía de Ronda, btw. Benadalid & Atajate (ca. 20 km SW Ronda), 750 m, 23.III.2000, leg. T. Knebelsberger (slide: ♂, Sp 488/1). (Coll. Bohn, ZSM). Description. Size. Length of pronotum in holotype 2.18 mm, relative length of pouch lobes of T7 gland 58– 75% (mean 69.8%) (N22, Table 2). Male structures. T7 gland similar to the preceding species, but pouch lobes much shorter; shape of pouch lobes very variable, mostly obtusely conical, with broadly rounded tip (Figs. 3E, F, 4D, 5A–C), rarely with a more narrowly rounded tip (Fig. 3D); long pit bristles not as strictly straight as in Dz. (Dz.) bolivari, at least tips slightly curved, and their bundles less dense, short pit bristles often rather strongly curled (Figs. 4F–H); lateral pit holes usually more deeply hollowed out, shape very variable, circular or more elongated, in the latter case often curved towards posteriorly (Figs. 5A–C). Glandular pores laterally on T2: present, but of variable number, mostly well developed (Fig. 2I) as in the preceding species, but partly as sparce as in the following two species (Figs. 2H, J). Distribution. Spain, Andalusia, western part of the Cordillera Penibetica. One locality north of Malaga, other localities further west in the mountain ranges Serranía de Ronda and Sierra Bermeja, at elevations of 600–1400 m (Figs. 27, 28). Remarks. Three of the 23 male specimens studied had pouch lobes with less broadly rounded tips, thus resembling Dz. (Dz.) bolivari in this respect and raising the question about how well the two species can be separated. However, all three specimens have very short pouch lobes (Sp 193a/4, Fig. 3D: 69%, Sp 457/1: 67%, Sp 457/6: 58%) with length values below the mean value (69.8%) of the specimens studied, confirming their affiliation to the new species. The use of the lobe length as a decisive criterion for the distinction of the two species appears justified since their ranges in this parameter, though rather near together, do not overlap. The rather strong differences in the colouration of the males also supports this assumption (see below). There remains the need to treat one obviously aberrant specimen of the species (Sp 193a/1, Fig. 5A). It has an extremely long right pouch lobe (100%) with broadly rounded tip, its left lobe is slightly shorter and shows a kind of asymmetrical branching. The branching is interpreted to be the result of a severe developmental disturbance, which could also have influenced the development of the right lobe. The excessive length of the right lobe is, therefore, considered as an artifact and not included in the calculations concerning the length of the pouch lobes.Published as part of Bohn, Horst, 2021, Revision of the genus Dziriblatta Chopard, 1936 (Blattodea, Ectobiidae, Ectobiinae) III. The species of the subgenus Dziriblatta, pp. 201-250 in Zootaxa 4964 (2) on page 204, DOI: 10.11646/zootaxa.4964.2.1, http://zenodo.org/record/470917
Structural and functional analysis of trees in integrated land use systems
No full textThe following manuscripts constitute this dissertation:1. Bohn Reckziegel R, Larysch E, Sheppard JP, Kahle H-P, Morhart C. Modelling andComparing Shading Effects of 3D Tree Structures with Virtual Leaves. RemoteSensing. 2021; 13(3):532. https://doi.org/10.3390/rs130305322. Bohn Reckziegel R, Sheppard JP, Kahle H-P, Larysch E, Spiecker H, Seifert T,Morhart C. Virtual pruning of 3D trees as a tool for managing shading effects inagroforestry systems. Agroforestry Systems. 2022; 96(1), 89-104.https://doi.org/10.1007/s10457-021-00697-53. Bohn Reckziegel R, Mbongo W, Kunneke A, Morhart C, Sheppard JP, Chirwa P, duToit B, Kahle H-P. Exploring the Branch Wood Supply Potential of an AgroforestrySystem with Strategically Designed Harvesting Interventions Based on TerrestrialLiDAR Data. Forests. 2022; 13(5):650. https://doi.org/10.3390/f1305065
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
2D difference gel electrophoresis reference map of a Fusarium graminearum nivalenol producing strain
No full textFusarium graminearum is widely studied as a model for toxin production among plant pathogenic fungi. A 2D DIGE reference map for the nivalenol-producing strain 453 was established. Based on a whole protein extract, all reproducible spots were systematically picked and analyzed by MALDI-TOF/TOF, leading to the identification of 1102 protein species. The obtained map contributes to the annotation of the genome by identifying previously nondescribed hypothetical proteins and will serve as a reference for future studies aiming at deciphering F. graminearum biology and chemotype diversity
Comparative analysis of genetic chemotyping methods for Fusarium: Tri13 polymorphism does not discriminate between 3- and 15-acetylated deoxynivalenol chemotypes in Fusarium graminearum
No full textGenetic chemotyping is an essential tool for characterizing Fusarium populations causing head blight on wheat and other cereals. Three PCR methods, based on tri cluster polymorphism, were optimized and compared on 94 single-spore isolates obtained from three continents belonging to F. gramineaurm, F. culmorum, F. poae, F. avenaceum and Microdochium nivale. While the methods based on the tri3, tri7 and tri12 polymorphism correctly identified all the tested strains, the method based on tri13 polymorphism was unable to discriminate between the 3- and 15-acetylated DON forms in F. graminearum. It is advised to avoid the use of tri13 polymorphism for genetic chemotyping of the two acetylated chemotypes
Pseudrotasfer microincubator Bohn, 2007, spec. nov.
No full textPseudrotasfer microincubator spec. nov. (Fig. 2 A–J) Material examined. Holotype. FS “Polarstern”, LAMPOS, station PS 61 / 150 - 1, 54 °30.22' S, 56 °08.20' W, 286 m to 54 °29.64' S, 56 °08.13' W, 290 m, Agassiz trawl, 0 6 Apr. 2002 (ZSM 20070012, 1 ɗ). Paratypes. FS “Polarstern”, LAMPOS, station PS 61 / 145 - 1, 54 °01.58' S, 62 °01.03' W, 271 m to 54 °01.11' S, 62 °01.63' W, 272 m, Agassiz trawl, 0 5 Apr. 2002 (ZSM 20070011, 1 Ψ); station PS 61 / 150 - 1 [for details see holotype] (ZSM 20070013, 1 ɗ). Description. Although three specimens are available (holotype: ɗ, body length 7 mm; paratypes: 1 ɗ, body length 6 mm; 1 Ψ, body length 5 mm), the description of the new species is mainly based on the holotype and the male paratype, due to the fact that the female paratype is in a defective state of preservation. Although the specimens are small, all of them are mature. Preserved, the specimens are of a whitish colour. The body is subcylindrical (Fig. 2 A–B), but with a flattened ventral sole, and rounded posterior end. Mouth terminal, anus subdorsal above ventral sole (Fig. 2 A: arrowhead). Tentacles 10, dendritic, two ventral considerably smaller than others. The dorsal radii are almost devoid of tube feet, each radius with single radial tube foot present close to anterior end of body, and next to anus. These are cylindrical and considerably smaller than those on the sole. Likewise, a single tube foot is also present in each of the ventrolateral radii close to anterior end of body. Somewhat distanced from anterior end (1.6–1.7 mm in the current specimens), ventral sole extends to posterior end of body (Fig. 2 B). Tube feet defining sole conspicuous, cylindrical, with distinct terminal discs. Feet restricted to radii, a single row in each ventrolateral radius (ɗ paratype: 8 tube feet, holotype: 11 tube feet), and a double row in a zig-zag arrangement in mid-ventral radius (ɗ paratype: 8 tube feet, holotype: 13 tube feet). Calcareous ring simple (Fig. 2 C), with no posterior processes. Anterior processes of all 10 plates about same height. They are oblong rectangular, incised anteriorly in radial plates. Interradial plates oblong triangular, except for middorsal interradial plate, which has a deeply incised V-shaped anterior process. Posterior margin of plates emarginated, more pronounced in radial plates than in interradials. Retractor muscles arise from longitudinal muscles about one third body length from anterior end. A single tubular polian vesicle present in left lateral interradius (stone canal and madreporite not investigated due to delicate state of specimens). Intestinal tract consists of a short oesophagus, followed by an intestine with a long loop, and terminates in a short cloaca. Anterior descending intestine suspended on midventral mesentery, ascending anterior intestine on a mesentery fixed to left lateral interradius, and descending posterior intestine on a mesentery attached to right side of midventral longitudinal muscle. Right and left respiratory trees arise with a short common trunk from anterior dorsal side of cloaca. Both trees simple short tubules, which may have few short side branches. Sexes are separate. Due to delicate state of specimens, position of gonopore could not be ascertained. Gonad consists of left and right bunch of few simple unbranched tubules attached to middorsal mesentery immediately posterior to middorsal interradial plate of calcareous ring. In males, each bunch is composed of 3–6 long tubules, as well as few short and probably developing tubules. Long tubules are densely filled with so-called spermatozeugmata (Fig. 2 D), bunch-like structures composed of numerous spermatozoa with agglutinated tails (Fig. 2 D: t). Female paratype with a bunch of simple balloon-shaped tubules on both sides of middorsal mesentery (two on left and about four on right side), filled with embryos (all of about same developmental stage). In addition, single small tubules filled with eggs present. Tentacles supported by very variable rod- to plate-like ossicles (Fig. 2 E), up to 350 µm long, in outline elongated to rounded. Ossicles smooth, with holes of variable size, central holes usually larger than peripheral, often with irregular branching marginal outgrowths. Body wall ossicles of two types, a deeper layer of scattered large plates and an upper layer of densely distributed wheel-like baskets. Plates of deeper body wall (Fig. 2 F) large (up to 700 µm in diameter), smooth, irregularly circular in outline, with holes of varying sizes. Baskets of upper body wall (Fig. 2 G–H) small (30– 75 µm in diameter), shallow, resembling four-spoked wheels, with hub-like broadened central primary cross and undulating rim connecting its four arms (“spokes”). While outer margin of hub is armed with several small outward-pointing teeth, inner surface of rim between spokes is equipped with fewer, usually larger, inward-pointing teeth. Tube feet covered by a dense outer layer of wheel-like baskets, absent only from terminal disc. Baskets overlie a layer of smooth, usually slightly curved plates (Fig. 2 I), similar to those in tentacles, with irregular elongated outline, perforated by larger and smaller holes, and often with various marginal outgrowths. These plates restricted to distal ends of tube feet, adjacent to terminal plates. Terminal disc supported by single terminal plate (exceptionally by few smaller plates), up to 400 µm in diameter, smooth, roundish in outline, with irregular marginal outgrowths; central holes of plates smaller than peripheral (Fig. 2 J). Reproduction and development. Brooding period includes at least the beginning of April. The only known female has its gonad tubules filled with juveniles, which are all at about the same developmental stage. The juveniles are about 1.2 mm long. The body is cylindrical to deformed due to packing within the gonad tubules. There are at least eight tentacles of about the same size, all retracted. No tube feet were detected and the body wall is covered by a layer of wheel-like baskets, which are also present in the adults. Distribution. (Fig. 1) So far, Pseudrotasfer microincubator is only known from the Burdwood Bank in the south-western Atlantic Ocean, depth range 271 to 290 m. Etymology. A small breeder (microincubator).Published as part of Bohn, Jens Michael, 2007, Pseudrotasfer microincubator gen. et spec. nov., a brooding cucumariid holothurian (Echinodermata: Holothuroidea: Dendrochirotida) from the Burdwood Bank (south-western Atlantic Ocean), pp. 61-68 in Zootaxa 1662 on pages 63-65, DOI: 10.5281/zenodo.17996
FIGURE 6 in Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin—Results of the DIVA 1 expedition of FS " Meteor " (Cruise M 48 / 1)
No full textFIGURE 6. Peniagone purpurea (Théel, 1882). (A) Ventral view of a specimen, anterior end to the left (b—brim, t—tentacles, v—velum, arrowheads—tube feet). (B) Primary crosses from body wall. (C) Large crosses and rods from tentacles. (D) Large crosses from tube feet.Published as part of Bohn, Jens Michael, 2006, Crinoidea and Holothuroidea (Echinodermata) of the abyssal Angola Basin—Results of the DIVA 1 expedition of FS " Meteor " (Cruise M 48 / 1), pp. 1-31 in Zootaxa 1276 on page 13, DOI: 10.5281/zenodo.17333
Validation of a quick chemotype and species determination by sequencing protocol in Fusarium
No full textFirst report of the nivalenol chemotype of Fusarium graminearum causing head blight of wheat in the grand duchy of luxembourg
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