keyword
MENU ▼
Read by QxMD icon Read
search

internal transcribed spacers

keyword
https://www.readbyqxmd.com/read/29150699/three-new-species-of-gyrodactylus-von-nordmann-1832-described-from-goodea-atripinnis-pisces-goodeidae-an-endemic-freshwater-fish-from-the-central-highlands-of-mexico
#1
Adriana García-Vásquez, Ismael Guzmán-Valdivieso, Ulises Razo-Mendivil, Miguel Rubio-Godoy
Goodea atripinnis Jordan, 1880 has a broad range of habitats and is the most widespread species of the endemic goodeid fishes, which inhabit the central highlands of Mexico. This species is known to be host to a high diversity of helminth parasites from which only three belong to the genus Gyrodactylus von Nordmann, 1832: G. lamothei Mendoza-Palmero, Sereno-Uribe et Salgado-Maldonado, 2009, G. mexicanus Mendoza-Palmero, Sereno-Uribe et Salgado-Maldonado, 2009, and G. tomahuac Rubio-Godoy, Razo-Mendivil, García-Vásquez, Freeman, Shinn et Paladini, 2016...
November 17, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29149424/botanical-origin-and-chemical-constituents-of-commercial-saposhnikoviae-radix%C3%A2-and-its-related-crude-drugs-available-in-shaanxi-and-the-surrounding-regions
#2
Takuro Maruyama, Masami Ezaki, Mao Shiba, Hiroki Yamaji, Taichi Yoshitomi, Noriaki Kawano, Shu Zhu, Xiao Cheng, Tsuguo Yokokura, Yutaka Yamamoto, Hiroyuki Fuchino, Hang Sun, Katsuko Komatsu, Nobuo Kawahara
Saposhnikoviae radix (SR) is described in the Japanese Pharmacopoeia as a crude drug derived from the root of Saposhnikovia divaricata Schischkin (Umbelliferae). According to Flora of China, the root of Peucedanum ledebourielloides K. F. Fu is used as a regional substitute for SR. Therefore, we surveyed the botanical origin of the drug used in China, especially Shaanxi and the surrounding regions, through nucleotide sequence analysis of the internal transcribed spacer region of rDNA. As a result, several samples from Shaanxi () and Shanxi () provinces were identified as Peucedanum ledebourielloides...
November 17, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29145916/monorchis-lewisi-n-sp-trematoda-monorchiidae-from-the-surf-bream-acanthopagrus-australis-sparidae-in-moreton-bay-australia
#3
T H Cribb, N Q-X Wee, R A Bray, S C Cutmore
We describe Monorchis lewisi n. sp. (Monorchiidae) from the surf bream, Acanthopagrus australis (Günther, 1859) (Sparidae), in Moreton Bay, eastern Australia. The new species differs from most existing species of Monorchis Monticelli, 1893 in its possession of an elongate I-shaped excretory vesicle, and from other congeners in the relative configuration of the gut and suckers. Ovipusillus mayu Dove & Cribb, 1998 is re-reported from Gnathanodon speciosus (Forsskål, 1775) (Carangidae) from Moreton Bay. We report new second internal transcribed spacer (ITS2) and 28S rDNA sequence data for both species...
November 17, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/29144843/brevicollum-a-new-genus-in-neohendersoniaceae-pleosporales
#4
Kazuaki Tanaka, Akira Hashimoto, Misato Matsumura, Toyozo Sato
A new genus, Brevicollum, is established for two new species, B. hyalosporum on Syzygium samarangense and B. versicolor on Volkameria inermis, in Japan. This genus is characterized by the presence of immersed ascomata with an excentric to central, short cylindrical ostiolar neck, thin ascomatal wall, clavate asci with a shallow ocular chamber, and broadly fusiform, hyaline to pale brown ascospores with a sheath. Molecular phylogenetic analyses based on a combined data set of sequences of 18S and 28S nuc rDNA genes and the second largest subunit of RNA polymerase II (RPB2) revealed that Brevicollum is a member of Neohendersoniaceae (Pleosporales, Dothideomycetes)...
October 5, 2017: Mycologia
https://www.readbyqxmd.com/read/29143653/phylogenetic-study-of-the-endemic-species-oxytropis-almaatensis-fabaceae-based-on-nuclear-ribosomal-dna-its-sequences
#5
Shyryn Almerekova, Nashtay Mukhitdinov, Saule Abugalieva
BACKGROUND: Oxytropis almaatensis Bajt. is a rare, narrow endemic species of the Trans-Ili Alatau mountains in Kazakhstan. Up to now, no studies regarding the taxonomy and variation of key morphological traits of O. almaatensis were undertaken. The purpose of this analysis was to evaluate phenotypic variation of O. almaatensis and assess the position of the species within the genus based on nucleotide sequences of the nuclear ribosomal DNA internal transcribed spacer (ITS) region. RESULTS: Two populations of O...
November 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29142227/population-genetic-structure-of-the-land-snail-camaena-cicatricosa-stylommatophora-camaenidae-in-china-inferred-from-mitochondrial-genes-and-its2-sequences
#6
Weichuan Zhou, Haifang Yang, Hongli Ding, Shanping Yang, Junhong Lin, Pei Wang
The phylogeographic structure of the land snail Camaena cicatricosa was analyzed in this study based on mitochondrial gene (COI and 16srRNA, mt DNA) and internal transcribed spacer (ITS2) sequences in 347 individuals. This snail is the vector of the zoonotic food-borne parasite Angiostrongylus cantonensis and one of the main harmful snails distributed exclusively in China. The results revealed significant fixation indices of genetic differentiation and high gene flow between most populations except several populations...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29140770/specificity-and-genetic-diversity-of-xylose-fermenting-scheffersomyces-yeasts-associated-with-small-blue-stag-beetles-of-the-genus-platycerus-in-east-asia
#7
Masahiko Tanahashi, Jong-Kuk Kim, Kana Watanabe, Takema Fukatsu, Kôhei Kubota
Among insect-fungus relationships, xylose-fermenting Scheffersomyces yeasts are well known for their potential in utilizing wood hemicelluloses and their association with various wood-feeding insects. However, their specificity to host insects or strain-level diversity within host species has not been clearly elucidated. In the insect family Lucanidae, larvae usually feed on decaying wood, and adult females consistently possess a fungus-storage organ, called the mycangium, near the abdominal tip. Here the authors investigated host-symbiont relationships between Scheffersomyces yeast symbionts and small blue stag beetles of the genus Platycerus (Coleoptera: Lucanidae) in East Asia by using intergenic spacer (IGS) region as a genetic marker...
November 9, 2017: Mycologia
https://www.readbyqxmd.com/read/29140762/the-genus-parasola-phylogeny-and-the-description-of-three-new-species
#8
János G Szarkándi, Geert Schmidt-Stohn, Bálint Dima, Shah Hussain, Sándor Kocsubé, Tamás Papp, Csaba Vágvölgyi, László G Nagy
Parasola represents an enigmatic lineage of veil-less, coprinoid fungi in Psathyrellaceae (Agaricales). The species-level taxonomy of the genus has been in a flux recently, resulting in the elimination of some long-established names and the description of new taxa. Here, we reconstruct the phylogeny of Parasola using two nuc rDNA loci, the internal transcribed spacer region (ITS1-5.8S-ITS2) and 28S and identify several putatively undescribed species, of which three are formally described here (Parasola crataegi, P...
October 9, 2017: Mycologia
https://www.readbyqxmd.com/read/29139139/epiphytic-fungal-community-in-vitis-vinifera-of-the-portuguese-wine-regions
#9
M Oliveira, M Arenas, O Lage, M Cunha, M I Amorim
In the present work, fungi present in the grapevine's phyllosphere collected from the main demarcated wine regions of Portugal were identified, and their phylogenetic relationships was analyzed. A total of 46 vine samples (leaves and berries) were collected from different parts of the country, being isolated a total of 117 fungal colonies that were identified to the genus level and sequenced in the following genetic regions: internal transcribed spacer region and 18S rRNA and β-tubulin gene. Next, a phylogenetic tree reconstruction for each genetic region was built...
November 14, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/29138627/the-fungicolous-ascomycetes-genus-hypomyces-in-korea
#10
Minkyeong Kim, Chorong Ahn, Changmu Kim
The genus Hypomyces contains fungi that grow on mushrooms, including agarics, boletes, and Aphyllophorales. While 53 Hypomyces species have been reported worldwide, only one was in Korea. In this study, two new Korean species were identified as H. luteovirens and H. tubariicola based on morphology and internal transcribed spacer sequencing.
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29138623/characterization-and-pathogenicity-of-new-record-of-anthracnose-on-various-chili-varieties-caused-by-colletotrichum-scovillei-in-korea
#11
May Moe Oo, GiTaek Lim, Hyun A Jang, Sang-Keun Oh
The anthracnose disease caused by Colletotrichum species is well-known as a major plant pathogen that primarily causes fruit rot in pepper and reduces its marketability. Thirty-five isolates representing species of Colletotrichum were obtained from chili fruits showing anthracnose disease symptoms in Chungcheongnam-do and Chungcheongbuk-do, South Korea. These 35 isolates were characterized according to morphological characteristics and nucleotide sequence data of internal transcribed spacer, glyceraldehyde-3-phosphate-dehydrogenase, and β-tubulin...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29138620/cutaneous-microflora-from-geographically-isolated-groups-of-bradysia-agrestis-an-insect-vector-of-diverse-plant-pathogens
#12
Jong Myong Park, Young-Hyun You, Jong-Han Park, Hyeong-Hwan Kim, Sa-Youl Ghim, Chang-Gi Back
Larvae of Bradysia agrestis, an insect vector that transports plant pathogens, were sampled from geographically isolated regions in Korea to identify their cutaneous fungal and bacterial flora. Sampled areas were chosen within the distribution range of B. agrestis; each site was more than 91 km apart to ensure geographical segregation. We isolated 76 microbial (fungi and bacteria) strains (site 1, 29; site 2, 29; site 3, 18 strains) that were identified on the basis of morphological differences. Species identification was molecularly confirmed by determination of universal fungal internal transcribed spacer and bacterial 16S rRNA gene sequences in comparison to sequences in the EzTaxon database and the NCBI GenBank database, and their phylogenetic relationships were determined...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29138618/diversity-phylogeny-and-host-specialization-of-hyaloperonospora-species-in-korea
#13
Jae Sung Lee, Hyang Burm Lee, Hyeon-Dong Shin, Young-Joon Choi
The genus Hyaloperonospora (Peronosporaceae; Oomycota) is an obligate biotrophic group that causes downy mildew disease on the Brassicaceae and allied families of Brassicales, including many economically relevant crops, such as broccoli, cabbage, radish, rape, and wasabi. To investigate the diversity of Hyaloperonospora species in northeast Asia, we performed a morphological analysis for the dried herbarium specimens collected in Korea, along with molecular phylogenetic inferences based on internal transcribed spacer rDNA and cox2 mtDNA sequences...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29138617/phylogenetic-placement-and-morphological-characterization-of-sclerotium-rolfsii-teleomorph-athelia-rolfsii-associated-with-blight-disease-of-ipomoea-batatas-in-korea
#14
Narayan Chandra Paul, Eom-Ji Hwang, Sang-Sik Nam, Hyeong-Un Lee, Joon-Seol Lee, Gyeong-Dan Yu, Yong-Gu Kang, Kyeong-Bo Lee, San Go, Jung-Wook Yang
In this study, we aimed to characterize fungal samples from necrotic lesions on collar regions observed in different sweetpotato growing regions during 2015 and 2016 in Korea. Sclerotia appeared on the root zone soil surface, and white dense mycelia were observed. At the later stages of infection, mother roots quickly rotted, and large areas of the plants were destroyed. The disease occurrence was monitored at 45 and 84 farms, and 11.8% and 6.8% of the land areas were found to be infected in 2015 and 2016, respectively...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29138616/bipolaris-marantae-sp-nov-a-novel-helminthosporoid-species-causing-foliage-blight-of-the-garden-plant-maranta-leuconeura-in-brazil
#15
Carla Cristina Gomes Lourenço, Janaina Lana Alves, Eduardo Guatimosim, Adans Colman, Robert Weingart Barreto
A severe leaf spot, turning to foliage blight, was observed on leaves of Maranta leuconeura growing in a garden in Brazil (state of Rio de Janeiro) in 2015. A dematiaceous hyphomycete bearing a morphology typical of a helminthosporoid fungi was regularly found in association with diseased tissues. The fungus was isolated and pathogenicity was demonstrated through the completion of Koch's postulates. A morphology and molecular analysis led to the conclusion that the fungus belonged to the genus Bipolaris, which is characterized by having fusiform conidia, externally thickened and truncate hila and a bipolar pattern of germination...
September 2017: Mycobiology
https://www.readbyqxmd.com/read/29130430/kuraishia-mediterranea-sp-nov-a-methanol-assimilating-yeast-species-from-olive-oil-and-its-sediment
#16
Neža Čadež, Dénes Dlauchy, Andrea Tóbiás, Gábor Péter
Six yeast strains isolated from olive oil sediments and spoiled olive oils originating from Slovenia and Portugal, respectively, proved to represent an undescribed yeast species based on DNA sequence comparisons. The analysis of gene sequences for internal transcribed spacer regions and the large subunit rRNA gene D1/D2 domain placed the novel species in the genus Kuraishia in a subclade containing Kuraishiacapsulata, the type species of the genus. Although the novel species is well separated genetically from the recognized species of the genus, only a minor phenotypic difference differentiating it from Kuraishia capsulata and K...
November 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29124467/spathaspora-piracicabensis-f-a-sp-nov-a-d-xylose-fermenting-yeast-species-isolated-from-rotting-wood-in-brazil
#17
Camila S Varize, Raquel M Cadete, Lucas D Lopes, Renata M Christofoleti-Furlan, Marc-André Lachance, Carlos A Rosa, Luiz C Basso
Two strains of a novel yeast species were isolated from rotting wood of an ornamental tree (purple quaresmeira, Tibouchina granulosa, Melastomataceae) in an Atlantic Rainforest area in Brazil. Analysis of the sequences of the internal transcribed spacer (ITS-5.8S) region and the D1/D2 domains of the large subunit rRNA gene showed that this species belongs to the Spathaspora clade, and is phylogenetically related to Spathaspora brasiliensis, Candida materiae and Sp. girioi. The novel species ferments D-xylose, producing ethanol, with amounts between 3...
November 9, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/29123645/beerdecoded-the-open-beer-metagenome-project
#18
Jonathan Sobel, Luc Henry, Nicolas Rotman, Gianpaolo Rando
Next generation sequencing has radically changed research in the life sciences, in both academic and corporate laboratories. The potential impact is tremendous, yet a majority of citizens have little or no understanding of the technological and ethical aspects of this widespread adoption. We designed BeerDeCoded as a pretext to discuss the societal issues related to genomic and metagenomic data with fellow citizens, while advancing scientific knowledge of the most popular beverage of all. In the spirit of citizen science, sample collection and DNA extraction were carried out with the participation of non-scientists in the community laboratory of Hackuarium, a not-for-profit organisation that supports unconventional research and promotes the public understanding of science...
2017: F1000Research
https://www.readbyqxmd.com/read/29118653/a-combined-human-case-of-dirofilaria-ursi-infection-in-dorsal-subcutaneous-tissue-and-anisakis-simplex-sensu-stricto-s-s-infection-in-ventral-subcutaneous-tissue
#19
Minoru Yamada, Namiko Shishito, Yoshihiro Nozawa, Shigehiko Uni, Keisuke Nishioka, Takaaki Nakaya
Background: Dirofilaria ursi is a filarial nematode that parasitizes the subcutaneous tissues of the American black bear (Ursus americanus) and Japanese black bear (Ursus thiabetanus japonicus). D. ursi that has parasitized black bears has the potential to subsequently infect humans. In addition, extra-gastrointestinal anisakiasis is less common in Japan. Case presentation: We report a case of ventral subcutaneous anisakiasis and dorsal subcutaneous dirofilariasis that was acquired in Fukushima, in the northern part of Japan...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/29114487/prevalence-of-trypanosome-infection-in-tsetse-flies-from-oji-river-and-emene-axis-of-enugu-state-nigeria-a-preliminary-report
#20
Kenechukwu Chibuike Onyekwelu, Fidelis Ebele Ejezie, Anthonius Anayochukwu Eze, Joy Ebele Ikekpeazu, Richard Chukwunonye Ezeh, Godknows Chizurumoke Edeh
Introduction: Trypanosomes are protozoan parasites of vertebrates transmitted by blood-sucking tsetse fly. Trypanosomes remain a constant threat to the lives of humans and animals throughout large regions of Africa. Aims and Objectives: This study investigated the presence, prevalence, and species of trypanosome parasite in tsetse flies caught in two areas of no previous documented history of trypanosome infection. Materials and Methods: For this purpose, 63 and 77 nonterenal tsetse flies were collected from Oji River and Emene areas of Enugu State Nigeria, respectively...
July 2017: Tropical Parasitology
keyword
keyword
87165
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"