8,428 results match your criteria description genus

Karyotype Description of Two Andean Species of the guarani Group of Drosophila (Díptera: Drosophilidae) and Cytological Notes.

J Insect Sci 2021 May;21(3)

Pontificia Universidad Católica del Ecuador, Facultad de Ciencias Exactas y Naturales, Laboratorio de Genética Evolutiva, Avenida 12 de Octubre 1076 y Roca, Quito, Ecuador.

The guarani group of Drosophila genus (Diptera: Drosophilidae) is formed by 24 species however the relationship of these species is not clear. In the present study are described the karyotypes of Drosophila sachapuyu Peñafiel and Rafael, 2018 and Drosophila zamorana Peñafiel and Rafael, 2018, two Andean species members of the guarani group. Mitotic chromosomes from cerebral ganglia of third stand larval were obtained by thermal shock and cell suspension techniques. Read More

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Description of sp. nov., a phytopathogenic actinobacterium isolated from barley seeds, causing leaf brown spot and decline.

Int J Syst Evol Microbiol 2021 May;71(5)

Canadian Food Inspection Agency (CFIA), Charlottetown Laboratory, Charlottetown, PE C1A 5T1, Canada.

is a Gram-stain-positive bacterium with eight subspecies, five of which have been redefined as different species on the basis of their genome sequence data. On the basis of the results of phylogenetic analysis of gene sequences, strains of members of the genus isolated from barley have been grouped in a separate clade from other species and subspecies of the genus . In this study, the biochemical, physiological, fatty acids and genetic characteristics of strains DM1 and DM3, which represented the barley isolates, were examined. Read More

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Fish blood flukes (Digenea: Aporocotylidae) from Indonesia: Two new genera and species infecting the banded eagle ray, (Bloch and Schneider, 1801) Capapé and Desoutter, 1979 (Myliobatiformes: Myliobatidae) from Borneo.

Int J Parasitol Parasites Wildl 2021 Aug 22;15:43-50. Epub 2021 Mar 22.

School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.

Specimens representing two new species of blood flukes (Digenea: Aporocotylidae), each representing a new genus, were collected from the banded eagle ray, (Bloch and Schneider, 1801) Capapé and Desoutter, 1979, in Borneo, Indonesia. n. sp. Read More

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Staphylococcus epidermidis Phages Transduce Antimicrobial Resistance Plasmids and Mobilize Chromosomal Islands.

mSphere 2021 May 12;6(3). Epub 2021 May 12.

Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic

is a leading opportunistic pathogen causing nosocomial infections that is notable for its ability to form a biofilm and for its high rates of antibiotic resistance. It serves as a reservoir of multiple antimicrobial resistance genes that spread among the staphylococcal population by horizontal gene transfer such as transduction. While phage-mediated transduction is well studied in , transducing phages have not been described in detail yet. Read More

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Comparative Cytogenetic Analysis of Three Eumeninae Species (Hymenoptera, Vespidae).

Cytogenet Genome Res 2021 May 12:1-10. Epub 2021 May 12.

Laboratório de Citogenética de Insetos, Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil.

Eumeninae represents the largest subfamily within Vespidae, with 3,600 species described. Of these, only 18 have been cytogenetically analysed. In the present study, we used both classical and molecular techniques to characterise and compare the karyotypes of 3 Eumeninae species, namely, Ancistrocerus sp. Read More

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Characithecium spp. (Monogenea: Dactylogyridae) from Astyanax bimaculatus (Characiformes: Characidae) in Northeast Brazil, with Description of a New Species.

Acta Parasitol 2021 May 12. Epub 2021 May 12.

Department of Biological Sciences, Regional University of Cariri (Urca), Rua Coronel Antônio Luiz, n° 1,161, Crato, Ceará, 63105-000, Brazil.

Purpose: To date, seven species of Characithecium Mendonza-Franco, Reina and Torchin, 2009 (Monogenea, Dactylogyridae) are valid, parasitizing mainly fishes of the family Characidae (Characiformes) in the Neotropical region. During a parasitological study of fishes in the Batateiras River and Carás stream, Ceará state, Brazil, two species of Characithecium were collected from the gills of Astyanax bimaculatus Linnaeus, 1758 (Characidae). The purpose of the present study is to describe a new species of monogenean of the genus Characithecium and report Characithecium costaricensis Mendoza-Franco, Reina and Torchin, 2009 in A. Read More

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Detailed description and illustration of larva, pupa and imago of (Westwood, 1876) (Diptera: Tipulidae) from Japan.

Biodivers Data J 2021 1;9:e58009. Epub 2021 May 1.

Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Japan Center for Marine Environmental Studies (CMES), Ehime University Matsuyama Japan.

Background: Loew, 1863 (Diptera: Tipulidae) is a relatively large crane fly genus with a wide distribution in the Afrotropic, Australasian-Oceanian, Eastern Palearctic, Oriental and Nearctic Regions. Although the genus is well known to include the largest crane fly species, the immature stages are, thus far, only described for the larva and pupa of the North American Arnaud & Byers, 1990.

New Information: In this study, we describe for the first time the egg, larva and pupae of the Japanese (Westwood, 1876). Read More

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Micromorphological differentiation of Korean Disporum species using light and scanning electron microscopy.

Microsc Res Tech 2021 May 10. Epub 2021 May 10.

Department of Biological Science, College of Bioscience and Biotechnology, Chungnam National University, Daejeon, Republic of Korea.

The genus Disporum Salisb. is widely distributed in East Asia, yet phylogenetically relevant morphological traits useful for differentiating many of the small, perennial, herbaceous species remain poorly described. To address this, leaf, floral, pollen, and orbicule micromorphology of four Korean Disporum species was investigated using light and scanning electron microscopy. Read More

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New Glomeromycotan Taxa, sp. nov. and gen. nov. et sp. nov. From Brazil, and gen. nov. From New Caledonia.

Front Microbiol 2021 23;12:655910. Epub 2021 Apr 23.

Departamento de Botânica e Zoologia, Universidade Federal do Rio Grande do Norte, Natal, Brazil.

Examination of fungal specimens collected in the Atlantic rain forest ecosystems of Northeast Brazil revealed many potentially new epigeous and semihypogeous glomerocarp-producing species of the phylum Glomeromycota. Among them were two fungi that formed unorganized epigeous glomerocarps with glomoid spores of almost identical morphology. The sole structure that distinguished the two fungi was the laminate layer 2 of their three-layered spore wall, which in spores of the second fungus crushed in PVLG-based mountants contracted and, consequently, transferred into a crown-like structure. Read More

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Peteryoungia gen. nov. with four new species combinations and description of Peteryoungia desertarenae sp. nov., and taxonomic revision of the genus Ciceribacter based on phylogenomics of Rhizobiaceae.

Arch Microbiol 2021 May 9. Epub 2021 May 9.

National Centre for Microbial Resource, National Centre for Cell Science, Pune, Maharashtra, 411007, India.

A novel bacterial strain designated as ADMK78 was isolated from the saline desert soil. The cells were rod-shaped, Gram-stain-negative, and non-motile. The strain ADMK78 grows best at 28 °C. Read More

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Cutibacterium modestum and "Propionibacterium humerusii" represent the same species that is commonly misidentified as Cutibacterium acnes.

Antonie Van Leeuwenhoek 2021 May 7. Epub 2021 May 7.

Division of Clinical Bacteriology and Mycology, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland.

Cutibacterium spp. play an increasing role in soft tissue and implant-associated infections. We isolated a novel Cutibacterium spp. Read More

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First record of the rare genus (Psathyrellaceae, Agaricales) from China with description of two new species.

MycoKeys 2021 23;79:119-128. Epub 2021 Apr 23.

Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resource; Key Laboratory of State Forestry Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed, Jiangxi Agricultural University, Nanchang, Jiangxi 330045, China Jiangxi Agricultural University Nanchang China.

is a rare genus that comprises two species and that has previously been reported only from Europe and North America. The present study expands the geographical scope of the genus by describing two new species - and - from subtropical China. The new species are supported by morphological characteristics and phylogenetic analyses (ITS, LSU and ). Read More

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On nine species of the spider genus (Araneae, Araneidae) from Xishuangbanna, China.

Zookeys 2021 26;1034:199-236. Epub 2021 Apr 26.

Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Institute of Zoology, Chinese Academy of sciences Beijing China.

Species of the genus Archer, 1951 from Menglun Town, Xishuangbanna, Yunnan, China are reviewed, including seven new species: (♂♀), (♂♀), (♂♀), (♂♀), (♂♀), (♂♀) and (♂♀). The male of (Yin, Wang, Xie & Peng, 1990) is described for the first time. The previous description of from Tengchong, Yunnan by Mi et al. Read More

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Revision of Korean species of the genus Jeannel (Staphylinidae, Pselaphinae, Batrisitae) with description of one new species.

Zookeys 2021 22;1033:159-171. Epub 2021 Apr 22.

S1-5 302, Department of Biology, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju-si, Chungbuk-do 28644, South Korea.

The genus Jeannel, 1958 (type species: Sharp) includes 35 species and is known from South Korea, China, Japan, Russia, and India. Three species, , , and have been documented from the Korean Peninsula. One additional species, , is described as new. Read More

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Revision of the Afrotropical genus Zumpt, 1958, with notes on the morphology of Rhiniidae subfamilies (Diptera, Oestroidea).

Zookeys 2021 22;1033:127-157. Epub 2021 Apr 22.

Departamento de Ciencias Ambientales y Recursos Naturales, Universidad de Alicante, Carretera San Vicente del Raspeig s/n, Aptdo 99 E-03080, San Vicente del Raspeig, Alicante, Spain Universidad de Alicante Alicante Spain.

The taxonomy and diversity of Zumpt, 1958, an exclusive Afrotropical genus, had not been reviewed recently. The genus included six nominal species, but the status of several of them was debated. Identification of most species depends on characters of the male terminalia; females are poorly known and, in several cases, are not adequately diagnosed. Read More

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Description of three new species of Hübner, 1819 from Colombia and Brazil (Lepidoptera, Saturniidae, Hemileucinae).

Zookeys 2021 15;1031:183-204. Epub 2021 Apr 15.

Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d'Histoire naturelle, CNRS, Sorbonne Université, EPHE, Univ des Antilles, Paris, France Sorbonne Université Paris France.

The Saturniidae is one of the most emblematic families of moths, comprising nearly 3000 species distributed globally. In this study, DNA barcode analysis and comparative morphology were combined to describe three new species within the genus , which is the most diverse genus in the family. Decaëns, Rougerie & Bonilla, , Decaëns, Rougerie & Bonilla, , and Decaëns, Rougerie & Bénéluz, are described from the Colombian Orinoco watershed, the Colombian Eastern Cordillera, and the area of endemism of Belém in the Brazilian Amazonia, respectively. Read More

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, a new species of vampire crab (Crustacea, Brachyura, Sesarmidae) from a limestone cave in central Sarawak, Malaysia.

Peter K L Ng

Zookeys 2021 15;1031:133-141. Epub 2021 Apr 15.

Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, Kent Ridge, Singapore 119260, Republic of Singapore National University of Singapore Singapore Singapore.

A new species of semi-terrestrial crab of the genus (Sesarmidae) is described from a limestone cave in central Sarawak, Malaysian Borneo. is characterised by its quadrate carapace, absence of a flagellum on the exopod of the third maxilliped, presence of 10 or 11 sharp tubercles on the dactylus of the chela and a diagnostic male first gonopod structure. This is the sixth species of reported from Sarawak, and the first member of the genus collected from inside caves. Read More

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Investigation of the Amathillopsidae (Amphipoda, Crustacea), including the description of a new species, reveals a clinging lifestyle in the deep sea worldwide.

Zookeys 2021 14;1031:19-39. Epub 2021 Apr 14.

National Oceanography Centre, Southampton, European Way, Southampton SO14 3ZH, UK National Oceanography Centre Southampton United Kingdom.

Amathillopsidae is a widely distributed, but rarely sampled family of deep-sea amphipods. During a recent expedition to the North Atlantic, specimens were filmed clinging to a polychaete tube in situ at abyssal depths by a Remote Operated Vehicle and then sampled for further study. The species was new to science and is described in detail herein. Read More

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New morphological and molecular data for Haemoproteus (H.) paramultipigmentatus in the Atlantic Forest of Brazil.

Parasitol Int 2021 May 3:102375. Epub 2021 May 3.

Laboratório de Protozoologia, Programa de Pós-graduação em Biodiversidade e Conservação da Natureza, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, CEP 36036-900 Juiz de Fora, Minas Gerais, Brazil.

Parasites of the genus Haemoproteus have been reported in almost all avian clades and zoogeographic regions, except Antarctica. However, despite the large number of reports worldwide, they are poorly studied in the Neotropical region, which includes the Atlantic Forest, a biodiversity hotspot with more than 890 bird species, of which 24% are endemic. Haemoproteus (Haemoproteus) paramultipigmentatus was described by morphological and molecular analyses in 2013 infecting Columbiform birds in Mexico. Read More

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New records on the rich loriciferan fauna of Trezen ar Skoden (Roscoff, France): Description of two new species of Nanaloricus and the new genus Scutiloricus.

PLoS One 2021 5;16(5):e0250403. Epub 2021 May 5.

Department of Biology, August Krogh Building, University of Copenhagen, Copenhagen Ø, Denmark.

Loricifera is a phylum of microscopic animals that inhabit marine environments worldwide. Named after their conspicuous and protective lorica, the phylum was first described from Roscoff (France) in 1983 and, hitherto, it contains only 40 species. Based on data collected from Roscoff during the past four decades, we here describe two new species of Nanaloricus, namely Nanaloricus valdemari sp. Read More

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Stomatal micromorphology in a complex of Mimosa section Mimosa (Fabaceae).

Protoplasma 2021 May 5. Epub 2021 May 5.

Instituto de Recursos Biológicos, Instituto Nacional de Tecnología Agropecuaria, N. Repetto y Los Reseros S/N, 1686, Hurlingham, Buenos Aires, Argentina.

The genus Mimosa Linnaeus (Leguminosae) comprises more than 530 species, being one of the most diversified genera in the family. A vast morphologic variability has been described at all infrageneric levels. Considering stomata description, a very low proportion of species have been studied in the genus, and the description was limited to stomata types, but not to variation in the disposition of subsidiary cells. Read More

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Thirty-five new species of the spider genus (Araneae, Pimoidae) from Pan-Himalaya.

Zookeys 2021 8;1029:1-92. Epub 2021 Apr 8.

Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Institute of Zoology, Chinese Academy of Sciences Beijing China.

Thirty-five new species of the Chamberlin & Ivie, 1943 are described from Pan-Himalaya: Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♀), Zhang & Li, (♀), Zhang & Li, s (♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♀), Zhang & Li, (♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♀), Zhang & Li, (♂♀), Zhang & Li, (♂♀), Zhang & Li, (♀). The DNA barcodes of the thirty-five new species are provided. Read More

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Parallel diversification of the African tree toad genus Nectophryne (Bufonidae).

Mol Phylogenet Evol 2021 Apr 29;162:107184. Epub 2021 Apr 29.

Museum für Naturkunde - Leibniz Institute for Evolution and Biodiversity Science, Biodiversity Dynamics, Invalidenstr. 43, Berlin 10115, Germany.

African amphibian diversity remains underestimated with many cryptic lineages awaiting formal description. An important hotspot of amphibian diversification is the Guineo-Congolian rainforest in Central Africa, its richness attributable to present day and ancestral range fragmentation through geological barriers, habitat expansion and contraction, and the presence of steep ecological gradients. The charismatic Nectophryne tree toads present an interesting case study for diversification in this region. Read More

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[Gonococcal pharyngitis].

Vestn Otorinolaringol 2021 ;86(2):85-89

Ural Research Institute of Dermatovenerology and Immunopathology, Ekaterinburg, Russia.

A description of a clinical case of oligosymptomatic pharyngitis associated with Neisseria gonorrhoeae is presented. On the example of oligosymptomatic localized gonococcal pharyngitis in a sexually active young man, included in the risk group for extragenital forms of sexually transmitted infections, an advantage has been shown molecular biological diagnostic method. Study of the spectrum of microflora of the oropharynx and urethra with assessment sensitivity to antibacterial drugs of representatives of the genus Neisseria isolated during mixed infection oropharynx, demonstrated that non-pathogenic Neisseria species are resistant to cephalosporins III-IV generations. Read More

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Description of a new species of the genus (Eulipotyphla: Talpidae: Uropsilinae) from the Dabie Mountains, Anhui, Eastern China.

Zool Res 2021 May;42(3):294-299

School of Life Science, Anhui University, Hefei, Anhui 230601, China.

During a terrestrial vertebrate survey of the Dabie Mountains in Anhui Province, eastern China, we collected four Asian shrew mole specimens (hereafter, shrew moles). Based on published literature and comparison with previously collected materials, the four specimens were similar to shrew moles from the mountains of Southwest China; however, no species in this group has been previously recorded from the Dabie Mountains. The genetic and morphological characteristics of the specimens were analyzed, based upon which a new species of shrew mole is described, named Read More

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The Maze Pathway of Coevolution: A Critical Review over the and Its Endosymbiotic History.

Genes (Basel) 2021 Apr 27;12(5). Epub 2021 Apr 27.

Research on Leishmaniasis Laboratory, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040360, Brazil.

The description of the genus as the causative agent of leishmaniasis occurred in the modern age. However, evolutionary studies suggest that the origin of can be traced back to the Mesozoic era. Subsequently, during its evolutionary process, it achieved worldwide dispersion predating the breakup of the Gondwana supercontinent. Read More

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Characterization of the Aerobic Anoxygenic Phototrophic Bacterium sp. AAP5.

Microorganisms 2021 Apr 6;9(4). Epub 2021 Apr 6.

Centre Algatech, Institute of Microbiology, Czech Academy of Sciences, 379 81 Třeboň, Czech Republic.

An aerobic, yellow-pigmented, bacteriochlorophyll -producing strain, designated AAP5 (=DSM 111157=CCUG 74776), was isolated from the alpine lake Gossenköllesee located in the Tyrolean Alps, Austria. Here, we report its description and polyphasic characterization. Phylogenetic analysis of the 16S rRNA gene showed that strain AAP5 belongs to the bacterial genus and has the highest pairwise 16S rRNA gene sequence similarity with (98. Read More

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Diversity and emendation of the genus Planktoniella (Bacillariophyceae), with descriptions of P. tubulata sp. nov. and P. trifurcata sp. nov.

J Phycol 2021 Apr 29. Epub 2021 Apr 29.

Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Healthy and Safe Aquaculture, College of Life Science, South China Normal University, West 55 of Zhongshan Avenue, Guangzhou, 510631, China.

For the first time LSU and SSU sequences were obtained from four species of the marine planktonic diatom Planktoniella. Samples were collected and cultured from Chinese coastal waters, and morphological observations were made using light and scanning electron microscopy. Combined morphological and DNA sequence data revealed two new species herein described as P. Read More

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sp. nov. and sp. nov., isolated from the gut of larvae of , reclassification of as comb. nov. and emended description of the genus .

Int J Syst Evol Microbiol 2021 Apr;71(4)

Agricultural Microbiology Division, Wanju-gun, Jeollabuk-do 55365, Republic of Korea.

Two bacterial strains, FWR-8 and CFWR-9, were isolated from the gut of larvae of that were raised at the National Institute of Agricultural Sciences, Wanju-gun, Republic of Korea. Both strains were strictly aerobic, Gram-stain-positive and non-motile. Strain FWR-8 possessed the highest sequence similarity (98. Read More

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The first description of the nymphal stages of (Psocodea: Anoplura: Hoplopleuridae) from the harvest mouse (Rodentia: Muridae).

Biodivers Data J 2021 19;9:e63747. Epub 2021 Apr 19.

Mammal Research Institute Polish Academy of Sciences, Bialowieza, Poland Mammal Research Institute Polish Academy of Sciences Bialowieza Poland.

Background: Despite the widespread belief that an extensive body of knowledge exists for the sucking lice (Anoplura), some of their common, Eurasian or even cosmopolitan species still lack complete taxonomic descriptions, especially those for their nymphal stages. This applies especially to the most common rodent parasites: the lice of the genus . In Europe, only two of the five most common species have full taxonomic characteristics with a description of the nymphal stages. Read More

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