scholarly journals Study of morphology on newly found Heamphysalis concinna tick at Selenge province

2018 ◽  
Vol 25 (03) ◽  
pp. 43-48
Author(s):  
Jargalan E ◽  
Uurtsaikh Z ◽  
Tserentogtokh B ◽  
Naranbaatar H ◽  
Khatanbaatar I ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Genital Pore ◽  
Ventral Surface ◽  
Morphological Description ◽  
Haemaphysalis Concinna ◽  
Blood Sucking ◽  
Lateral Margins ◽  
Basis Capituli

The blood sucking 4 species ticks of Haemaphysalis genus were distributed in Mongolia, that an important vectors of diseases transmitting to human and animals and causing economic lost. Newly found Haemaphysalis females in Selenge province was confirmed to H. concinna species based on following features: strong lateral margins of palp article II, heart-shaped scutum with widest at middle, short-wide hypostome, sharpen cornua of basis capituli, posterior margins of basis capituli, ventral surface of basis capituli, latero-anterial I festoon connected with lateral, anterior groove of genital pore and additional spur of leg I trochanter. To confirm morphological description of H. concinna, CoxI sequence analysis was done and results was showed H. concinna CoxI sequences in GenBank with 86-89% identity. The results indicate that the Haemaphysalis concinna tick was distributed in Mongolia and it is announcing that the spread of Haemaphysalis tick in Selenge aimag. Сэлэнгэ аймгийн нутгаас шинээр олдсон Heamphysalis concinna хачгийн хэлбэр зүйн судалгаа Хураангуй: Монгол оронд Haemaphysalis төрлийн 4 зүйлийн хачиг тархан хүн, мал амьтанд шимэгчилж өвчин дамжуулан хохирол учруулдаг. Сэлэнгэ аймгийн нутгаас олдсон хачиг нь хэлбэр зүйн ерөнхий онцлогоороо Haemaphysalis төрөлд хамаарагдаж байлаа. Хошууны пальпын II үеийн хажуугийн нэмэлт хурц ирмэг, бамбайн дунд хэсгээрээ өргөссөн зүрх мэт хэлбэр, богино өргөн гипостом, хошууны суурийн булангийн эвэр, арын ирмэгийн илрэлт, хошууны суурийн доод гадаргуугийн хэлбэр, хачгийн захын I фестон нь зөвхөн биеийн хажуугийн ховилтой холбогдсон байдал, бэлгийн сүвийн урьдах зураасны онцлог, бэлгийн сүвийн хэлбэрийн онцлог, ялгадасны сүвийн арын ховилын онцлог, I хөлийн I үеийн нэмэлт өргөс хэлбэрийн өргөсөлт зэрэг онцлогоороо Haemaphysalis concinna зүйлийн хачиг болох нь батлагдав. Энэхүү хачгийн морфологийн ялган танилтыг CохI генийн нуклеотидын дарааллыг тогтоон баталгаажуулахад ГенБанкинд бүртгэлтэй H. concinna хачгийн нуклеотидын дарааллуудтай 86-89%-ийн адил байлаа. Бидний судалгааны үр дүнд хэлбэр зүйн онцлог, нуклеотидын дараалал тогтоох шинжилгээгээр Монгол оронд H. concinna зүйл хачиг тархсан нь тогтоогдсон тул Монгол орны хачгийн жагсаалтанд оруулж болохыг баталгаажуулж байна. Мөн энэхүү судалгаагаар Сэлэнгэ аймгийн нутгаас Haemaphysalis төрлийн хачиг анх удаа илрүүлэв. Түлхүүр үг: Цус сорогч хачиг, Haemaphysalis concinna, хэлбэр зүй, Сэлэнгэ аймаг

scholarly journals The climbing organ of an insect, Rhodnius prolixus (Hemiptera; Reduviidœ)

1932 ◽  
Vol 111 (772) ◽  
pp. 364-376 ◽  
Keyword(s):  
Mode Of Action ◽  
Ventral Surface ◽  
Rhodnius Prolixus ◽  
Blood Sucking ◽  
New Type

Adhesive or climbing organs are familiar structures in many groups of insects. Most commonly, as in Hymenoptera, Diptera and many Hemiptera, they take the form of empodia or pulvilli between the tarsal claws; in a few Hemiptera they occur at the lower end of the tibia (Weber, 1930), while in many Coleoptera and Orthoptera it is the ventral surface of the tarsal segments themselves which is specially modified (Dewitz, 1884). These structure are generally stated to be absent in the Reduviidæ, but one of us (Gillett, 1932) has recently observed a new type of climbing organ in the blood-sucking reduviid bug, Rhodnius prolixus stål. The object of the present paper is to describe the structure of this organ and to discuss its mode of action.

scholarly journals New Records of Bartonella Spp. And Rickettsia Spp. In Lice Collected From Small Rodents

2020 ◽  
Author(s):  
Asta Aleksandravičienė ◽  
Algimantas Paulauskas ◽  
Michal Stanko ◽  
Jana Fričová ◽  
Jana Radzijevskaja
Keyword(s):  
Sequence Analysis ◽  
New Records ◽  
Myodes Glareolus ◽  
Molecular Characterisation ◽  
Infectious Agents ◽  
Human Pathogens ◽  
Small Rodents ◽  
Blood Sucking ◽  
Sucking Lice ◽  
Pcr Targeting

Abstract Background: Lice are blood-sucking insects that are of medical and veterinary significance as parasites and vectors for various infectious agents. More than half of described blood-sucking lice species are found on rodents. Rodents are important hosts of several Bartonella and Rickettsia species and some of these pathogens are characterised as human pathogens in Europe. Rodent ectoparasites, such as fleas and ticks, are important vectors of Bartonella spp. and Rickettsia spp., but knowledge about the presence of these bacteria in lice is limited. The aim of this study was to determine the prevalence of Bartonella and Rickettsia bacteria in lice collected from rodents in Slovakia.Methods: The ectoparasites were collected from small rodents captured from 2010 to 2015 at four different sites in eastern Slovakia. The presence of Bartonella and Rickettsia pathogens in lice samples was screened by real-time PCR, targeting ssrA and gltA genes respectively. The molecular characterisation of the Bartonella strains was based on sequence analysis of partial rpoB and ITS genes, and of the Rickettsia species on sequence analysis of the gltA gene. Results: A total of 1074 lice of seven species were collected from six rodent species in Slovakia from 2010 to 2015. Bartonella DNA was detected in three species of lice Hoplopleura affinis (collected from Apodemus agrarius, A. flavicollis and Myodes glareolus), Polyplax serrata (from A. agrarius) and Hoplopleura sp. (from A. flavicollis). Sequence analysis revealed that the Bartonella strains belonged to the B. coopersplainsensis, B. tribocorum and B. taylorii genogroups. Rickettsia DNR was detected in H. affinis and P. serrata lice collected from A. agrarius. Sequence analysis revealed the presence of two Rickettsia species: R. helvetica and Rickettsia sp.Conclusions: To the best of the authors’ knowledge, this is the first report on the occurrence and diversity of Bartonella spp. and Rickettsia spp. in lice collected from small rodents in Europe. This study is also the first to detect B. coopersplainsensis in Slovakia.

Morphology of Anomalocaris canadensis from the Burgess Shale

2014 ◽  
Vol 88 (1) ◽  
pp. 68-91 ◽  
Author(s):  
Allison C. Daley ◽  
Gregory D. Edgecombe
Keyword(s):  
Close Association ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
The Body ◽  
Body Region ◽  
Morphological Description ◽  
Burgess Shale ◽  
Oral Cone ◽  
Stem Lineage ◽  
Posterior Body Region

Recent description of the oral cone of Anomalocaris canadensis from the Burgess Shale (Cambrian Series 3, Stage 5) highlighted significant differences from published accounts of this iconic species, and prompts a new evaluation of its morphology as a whole. All known specimens of A. canadensis, including previously unpublished material, were examined with the aim of providing a cohesive morphological description of this stem lineage arthropod. In contrast to previous descriptions, the dorsal surface of the head is shown to be covered by a small, oval carapace in close association with paired stalked eyes, and the ventral surface bears only the triradial oral cone, with no evidence of a hypostome or an anterior sclerite. The frontal appendages reveal new details of the arthrodial membranes and a narrower cross-section in dorsal view than previously reconstructed. The posterior body region reveals a complex suite of digestive, respiratory, and locomotory characters that include a differentiated foregut and hindgut, a midgut with paired glands, gill-like setal blades, and evidence of muscle bundles and struts that presumably supported the swimming movement of the body flaps. The tail fan includes a central blade in addition to the previously described three pairs of lateral blades. Some of these structures have not been identified in other anomalocaridids, making Anomalocaris critical for understanding the functional morphology of the group as a whole and corroborating its arthropod affinities.

scholarly journals Taxonomic assessment of Leptodoras (Siluriformes: Doradidae) with descriptions of three new species

2005 ◽  
Vol 3 (4) ◽  
pp. 637-678 ◽  
Author(s):  
Mark Henry Sabaj
Keyword(s):  
New Species ◽  
Ventral Surface ◽  
Nominal Species ◽  
Lowland Rivers ◽  
Northern Half ◽  
Gill Filaments ◽  
Andean South America ◽  
Lateral Margins ◽  
Thorny Catfishes ◽  
Three New Species

The genus Leptodoras Boulenger is a monophyletic assemblage of at least ten species distributed in large, predominantly lowland rivers throughout the northern half of cis-Andean South America. Leptodoras is diagnosed in Doradidae (thorny catfishes) by unique morphologies of the oral hood (upper labial extensions distinct with comparatively smooth ventral surface, lateral margins of extensions entire, weakly scalloped or fimbriate and without marginal papillae, and interlabial membranes of narrow or moderate width), first gill arch (enlarged accessory lamellae extend well onto medial face of gill filaments), and gas bladder (reduced size and modified cordiform shape, two distinct horn-like diverticula project from posterior walls of posterior chambers, and a pair of bulbous diverticula project from lateral walls of anterior chamber). Examination of specimens of Leptodoras from throughout its range verified the distinctiveness of the seven nominal species (L. acipenserinus, L. copei, L. hasemani, L. juruensis, L. linnelli, L. myersi and L. praelongus) and revealed three new species described herein (Leptodoras nelsoni, L. rogersae, and L. cataniai). A lectotype for L. hasemani is designated.

Morphological and molecular characterisation of Moshajia idiofora Siddiqi, 1982 (Dorylaimida: Qudsianematidae), with new insights into the phylogeny of the enigmatic Lordellonematinae

Nematology ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 349-360 ◽  
Author(s):  
Zarrin Imran ◽  
Joaquín Abolafia ◽  
Reyes Peña-Santiago ◽  
Wasim Ahmad
Keyword(s):  
Sequence Analysis ◽  
18S Rdna ◽  
Gene Sequence ◽  
Molecular Data ◽  
Morphological Description ◽  
Molecular Characterisation ◽  
Rdna Gene ◽  
Gene Sequence Analysis ◽  
18S Rdna Gene ◽  
Region Form

Summary Seven populations of Moshajia idiofora, six from India and one from Japan, are characterised, including morphological description, morphometrics, LM and SEM observations, and molecular (18S rDNA gene sequence) analysis. These populations are compared to previous records of the species as well as its closest species. Two of these species, M. cultristyla and M. qasimi, are regarded as junior synonyms of M. idiofora. SEM pictures provide new details of the lip region form. Molecular data indicate that M. idiofora belongs to a morphologically heterogeneous clade whose components share the absence of a distinctly developed pars refringens vaginae and raise a serious doubt about the traditional position of Lordellonematinae representatives in the Dorylaimina system.

scholarly journals Alternaria malicola sp. nov., a New Pathogen Causing Fruit Spot on Apple in China

Plant Disease ◽  
2018 ◽  
Vol 102 (7) ◽  
pp. 1273-1282 ◽  
Author(s):  
J. L. Dang ◽  
M. L. Gleason ◽  
L. N. Li ◽  
C. Wang ◽  
C. K. Niu ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Elongation Factor ◽  
Major Allergen ◽  
Apple Fruit ◽  
Shaanxi Province ◽  
Morphological Description ◽  
Black Dot ◽  
Translation Elongation ◽  
Pathogenicity Tests ◽  
Alternaria Sp

Alternaria spp. are pathogens of several diseases that pose significant threats to apple production. Several putative Alternaria sp. isolates were obtained from lesions of a disease commonly referred to as black dot on apple fruit in Shaanxi Province, China. Pathogenicity tests using mycelial plugs and conidial suspensions indicated that this isolate could cause leaf blotch, as well as moldy core and black dot on fruit. On the basis of sequence analysis of glyceraldehyde-3-phosphate dehydrogenase (GAPDH), RNA polymerase second largest subunit, and translation elongation factor 1-α, an isolate clustered with the Alternaria sect. Ulocladioides. By combining GAPDH, major allergen Alta1, mating type protein 1-2-1, and the AGA1 gene sequence analysis and morphological description, the isolates were identified as a new species named Alternaria malicola. Our finding expands the documented diversity of apple pathogens within the genus Alternaria and clarifies the taxonomy of the pathogen assemblage that may be associated with three apple diseases.

scholarly journals Descrição da larva de 3º ínstar e redescrição do adulto de Phaedon confinis Klug (Coleoptera: Chrysomelidae)

2015 ◽  
Vol 8 (2) ◽  
pp. 135-144
Author(s):  
Julianne Milléo ◽  
Felícia Pereira de Albuquerque ◽  
Jonathan Pena Castro ◽  
Luciano de Azevedo Moura
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Larval Instar ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Instar Larva ◽  
Control Agent ◽  
Lateral Margins ◽  
Oval Body

Tendo em vista o potencial de Phaedon confinis Klug como biocontrolador de Senecio brasiliensis Less e a carência do conhecimento taxonômico das espécies de Phaedon registradas para o Brasil, o trabalho teve como objetivos descrever a larva de 3º instar, bem como acrescentar novos caracteres do adulto e ilustrações para o reconhecimento da espécie. As larvas de P. confinis são eruciformes, subcilíndricas, alongadas e ligeiramente convexas; superfície dorsal marrom-escura e ventral com regiões amareladas mais claras; quatro cerdas na fronte; seis estemas arranjados em três grupos; labro marrom, com quatro pares de cerdas; placa pronotal com dez cerdas; região pleural do protórax com tubérculo T; meso- e metatórax com tubérculos Dai e Dae aproximados, mas não fusionados, e tubérculos Es-Ss fusionados entre si e pela linha mediana; garras tarsais simples; abdômen com tubérculo Dae ausente e Dai presente e pouco pronunciado; tubérculos abdominais com duas cerdas em Dpi e Dpe. Adulto com corpo oval e convexo dorsalmente; pronoto e élitros glabros; coloração predominante azul violeta metálica; margens laterais do pronoto arredondadas, castanho-amareladas com mácula central azul-metálica; estrias elitrais com pontuações profundas e ordenadas em oito fileiras longitudinais; regiões castanho-amareladas na cabeça, protórax e pernas; cabeça com duas pequenas máculas pretas ovais, posteriores aos olhos na região do vértice.Description of the 3rd Instar Larva and Characters of Adult Phaedon confinis Klug (Coleoptera: Chrysomelidae)Abstract. In view of the potential of Phaedon confinis Klug as an biological control agent of the Senecio brasiliensis Less and the lack of taxonomic knowledge of the species Phaedon recorded for Brazil, this paper aimed to describe the 3rd larval instar, redescribe the adult, as well as add new characters and illustrations to acknowledgment of the specie. The P. confinis larvae are eruciform, subcylindrical, elongated and slightly convex; dorsal surface dark brown and ventral surface with yellowish lighter regions; four setae in the front; six stemmata arranged in three groups; brown labrum, with four pairs of setae, pronotal plate with ten setae; pleural region of prothorax with tubercle T; meso- and metathorax with tubercles Dai and Dae close, but not fused, and tubercles Es-Ss fused between themselves by midline; simple tarsal claws; abdomen with tubercle Dae absent and Dai present, little pronounced; abdominal tubercles with two setae in Dpi and Dpe. Adult has oval body and dorsally convex; pronotum and elytral glabrous; predominant colour blue metallic violet; lateral margins of pronotum rounded, yellowish brown with central macula metallic blue, elytral striae with deep punctuation and arranged in eight longitudinal rows; yellowish brown regions on the head, prothorax and legs; head with two small oval black maculae, posterior to the eyes in vertex region.

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

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7789 ◽  
Author(s):  
Katherine Bustamante ◽  
Efrén Santos-Ordóñez ◽  
Migdalia Miranda ◽  
Ricardo Pacheco ◽  
Yamilet Gutiérrez ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Sequence Analysis ◽  
Leaf Size ◽  
Morphological Characterization ◽  
Its2 Sequence ◽  
Morphological Description ◽  
Medicinal Tree ◽  
Molecular Barcode ◽  
Its1 And Its2 ◽  
Molecular Barcodes

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, inflammation and pain relieve associated with bone and articulation-related diseases. Furthermore, Mimusops coriacea could be used as anti-oxidant agent. However, botanical, chemical or molecular barcode information related to this much used species is not available from Ecuador. In this study, morphological characterization was performed from leaves, stem and seeds. Furthermore, genetic characterization was performed using molecular barcodes for rbcL, matk, ITS1 and ITS2 using DNA extracted from leaves. Methods Macro-morphological description was performed on fresh leaves, stem and seeds. For anatomical evaluation, tissues were embedded in paraffin and transversal dissections were done following incubation with sodium hypochlorite and safranin for coloration and fixated later in glycerinated gelatin. DNA extraction was performed using a modified CTAB protocol from leaf tissues, while amplification by PCR was accomplished for the molecular barcodes rbcL, matK, ITS1 and ITS2. Sequence analysis was performed using blast in the GenBank. Phylogenetic analysis was performed with accessions queried in the GenBank belonging to the subfamily Sapotoideae. Results Leaf size was 13.56 ± 1.46 × 7.49 ± 0.65 cm; where is a macro-morphological description of the stem (see Methods). The peel of the seeds is dark brown. Sequence analysis revealed that amplicons were generated using the four barcodes selected. Phylogenetic analysis indicated that the barcodes rbcL and matK, were not discriminated between species within the same genus of the subfamily Sapotoideae. On the other hand, the ITS1 and ITS2 were discriminative at the level of genus and species of the Sapotoideae.

scholarly journals SOME NEW SPECIES OF COCCIDÆ

1898 ◽  
Vol 30 (8) ◽  
pp. 220-224
Author(s):  
J. D. Tinsley
Keyword(s):  
New Species ◽  
Ventral Surface ◽  
The Body ◽  
Longitudinal Ridge ◽  
Lateral Margins

Dactylopius Quaintancii, n. sp.Adult ♀ Length, 2 mm. Width, 1.5 mm. Shape, ellipsoidal, much flattened. Colour, dark grayish-brown, the body is so covered with white secretion that its true colour only shows on the ventral surface, the colour of the dorsum appearing quite white. The white secretion mealy, projecting slightly on the lateral margins, but not forming well-marked filaments; posteriorly it is produced into two very short, but well-defined, caudal filaments; on the dorsum it is slightly raised into a longitudinal ridge.

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