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https://www.readbyqxmd.com/read/29351069/metazoan-parasite-fauna-of-migrating-common-garfish-belone-belone-l-in-the-baltic-sea
#1
Patrick Unger, Kilian Neubert, Harry W Palm
A total of 35 common garfish, Belone belone (Linnaeus, 1761), were studied for metazoan parasites on their spawning grounds in the western Baltic Sea. Nine parasite species were found, and six new locality records could be established for German coastal waters (Axine belones, Monogenea; Proteocephalus sp., Cestoda; Anisakis simplex (s.s.), Contracaecum rudolphii A and Hysterothylacium aduncum, Nematoda; Echinorhynchus gadi, Acanthocephala). For the first time, the marine ectoparasite A. belones was recorded from the gills of garfish inside the Baltic Sea, indicating its ability to survive the spawning migration as well as the brackish water conditions at its reproduction grounds...
March 26, 2018: Acta Parasitologica
https://www.readbyqxmd.com/read/29350759/extreme-rainfall-affects-assembly-of-the-root-associated-fungal-community
#2
Christopher J Barnes, Christopher J van der Gast, Niall P McNamara, Rebecca Rowe, Gary D Bending
Global warming is resulting in increased frequency of weather extremes. Root-associated fungi play important roles in terrestrial biogeochemical cycling processes, but the way in which they are affected by extreme weather is unclear. Here, we performed long-term field monitoring of the root-associated fungus community of a short rotation coppice willow plantation, and compared community dynamics before and after a once in 100 yr rainfall event that occurred in the UK in 2012. Monitoring of the root-associated fungi was performed over a 3-yr period by metabarcoding the fungal internal transcribed spacer (ITS) region...
January 19, 2018: New Phytologist
https://www.readbyqxmd.com/read/29345534/a-new-stipitate-species-of-crepidotus-from-india-and-thailand-with-notes-on-other-tropical-species
#3
Laura Guzmán-Dávalos, C K Pradeep, K B Vrinda, A Manoj Kumar, Virginia Ramírez-Cruz, María Herrera, Alma Rosa Villalobos-Arámbula, Kasem Soytong, Timothy J Baroni, M Catherine Aime
A new Asian species of Crepidotus (Basidiomycota, Agaricales), C. asiaticus, is presented based on morphological and nuc rDNA internal transcribed spacer (ITS1-5.8S-ITS2 = ITS) and large subunit (28S) sequence data. This new species, found in India and Thailand, is characterized by the centrally stipitate medium-sized basidiomata, orange to reddish brown pileus, white to brownish orange lamellae, and white stipe. Based on morphology, C. asiaticus is similar to the neotropical C. thermophilus. However, the microscopic characters, especially the size and shape of the basidiospores, can be used to distinguish these two taxa, as well as their geographic distributions...
November 14, 2017: Mycologia
https://www.readbyqxmd.com/read/29345102/the-mycobiota-of-the-sand-fly-phlebotomus-perniciosus-involvement-of-yeast-symbionts-in-uric-acid-metabolism
#4
Elena Martin, Ilaria Varotto Boccazzi, Leone De Marco, Gioia Bongiorno, Matteo Montagna, Luciano Sacchi, Priscilla Mensah, Irene Ricci, Luigi Gradoni, Claudio Bandi, Sara Epis
The knowledge of the fungal mycobiota of arthropods, including the vectors of human and animal diseases, is still limited. Here, we investigated the mycobiota associated with the sand fly Phlebotomus perniciosus, the main vector of leishmaniasis in the western Mediterranean area, by a culture-dependent approach (microbiological analyses and sequencing of the 26S rRNA gene), internal transcribed spacer (ITS) rRNA amplicon-based next-generation sequencing, fluorescence in situ hybridisation (FISH), and genome sequencing of the dominant yeast species...
January 18, 2018: Environmental Microbiology
https://www.readbyqxmd.com/read/29338808/ceratomyxa-gracillima-n-sp-cnidaria-myxosporea-provides-evidence-of-panmixia-and-ceratomyxid-radiation-in-the-amazon-basin
#5
Suellen A Zatti, Stephen D Atkinson, Antônio A M Maia, Jerri L Bartholomew, Edson A Adriano
We describe a new freshwater myxosporean species Ceratomyxa gracillima n. sp. from the gall bladder of the Amazonian catfish Brachyplatystoma rousseauxii; the first myxozoan recorded in this host. The new Ceratomyxa was described on the basis of its host, myxospore morphometry, ssrDNA and internal transcribed spacer region (ITS-1) sequences. Infected fish were sampled from geographically distant localities: the Tapajós River, Pará State, the Amazon River, Amapá State and the Solimões River, Amazonas State...
January 17, 2018: Parasitology
https://www.readbyqxmd.com/read/29336686/phylogeny-and-taxonomy-of-favolus-basidiomycota
#6
Jun-Liang Zhou, Bao-Kai Cui
Favolus is a natural genus that is closely related to Polyporus. A taxonomic study of Favolus was carried out based on morphological characteristics and phylogenetic analysis of the internal transcribed spacer (ITS) region (ITS1-5.8S-ITS2 = ITS) and 18S and 28S genes of the nuc rDNA, translation elongation factor 1-α gene (TEF1-α), the mt 16S rDNA gene (mt rrnS), β-tubulin gene (TBB1), and the RNA polymerase II largest subunit (RPB1) and second largest subunit (RPB2) genes. Fourteen specimens collected from subtropical to tropical regions in China were shown to be different from existing Favolus species...
November 30, 2017: Mycologia
https://www.readbyqxmd.com/read/29336682/preliminary-phylogeny-of-coemansia-kickxellales-with-descriptions-of-four-new-species-from-taiwan
#7
Shu-Cheng Chuang, Hsiao-Man Ho, Nicole Reynolds, Matthew E Smith, Gerald L Benny, Chiu-Yuan Chien, Ju-Lin Tsai
Four new species of Coemansia from Taiwan are described. Three produce spirally twisted sporangiophores, and these new taxa increase the number of species in the Coemansia spiralis complex from three to six. Each new taxon is morphologically unique. Coemansia biformis, sp. nov., has two different asexual reproductive types on the same thallus; one is straight and the other has a spiral fertile region. Coemansia helicoidea, sp. nov., has stoloniferous sporangiophores with a helicoid fertile region. Coemansia pennisetoides, sp...
November 13, 2017: Mycologia
https://www.readbyqxmd.com/read/29336678/phylogeny-and-diversity-of-the-morphologically-similar-polypore-genera-rigidoporus-physisporinus-oxyporus-and-leucophellinus
#8
Fang Wu, Jia-Jia Chen, Xiao-Hong Ji, Josef Vlasák, Yu-Cheng Dai
Rigidoporus and its morphologically similar genera Physisporinus, Oxyporus, and Leucophellinus, which include some forest pathogens and medicinal species, are very important groups of wood-decaying fungi. Species of these genera have not only ecological functions, but also economic importance. Phylogenetic and taxonomic studies on taxa in these genera were carried out. Inferred from phylogenies based on DNA sequences of the nuc rDNA ITS1-5.8S-ITS2 (internal transcribed spacer [ITS]) and D1-D2 domains of nuc 28S rDNA, 36 species sampled that traditionally belong to Physisporinus, Rigidoporus, Leucophellinus, and Oxyporus are nested mostly in eight lineages...
November 20, 2017: Mycologia
https://www.readbyqxmd.com/read/29332156/enterocytozoon-bieneusi-genotypes-in-tibetan-sheep-and-yaks
#9
Qiang Zhang, Jinzhong Cai, Pei Li, Lin Wang, Yaqiong Guo, Chunhua Li, Mengtong Lei, Yaoyu Feng, Lihua Xiao
Few studies have been conducted on the distribution of Enterocytozoon bieneusi genotypes in Tibetan sheep and yaks, which live outdoors in extreme climate with high altitude. In this study, fecal specimens from 312 Tibetan sheep and 554 yaks in Qinghai, China, were collected and examined for E. bieneusi by PCR-sequence analysis of the ribosomal internal transcribed spacer. Among them, 73 (23.4%) specimens from Tibetan sheep and 40 (7.2%) from yaks were positive for E. bieneusi. There were eight E. bieneusi genotypes in Tibetan sheep, including three known ones (BEB6, COS-I, and NESH5) and five novel ones (named as CHS13-CHS17)...
January 14, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29327324/divergent-cryptosporidium-parvum-subtype-and-enterocytozoon-bieneusi-genotypes-in-dromedary-camels-in-algeria
#10
Djamel Baroudi, Hongwei Zhang, Said Amer, Djamel Khelef, Dawn M Roellig, Yuanfei Wang, Yaoyu Feng, Lihua Xiao
Little information is available on the occurrence of the zoonotic protists Cryptosporidium spp. and none on Enterocytozoon bieneusi in camels. This preliminary study was conducted to examine the identity of Cryptosporidium subtypes and E. bieneusi genotypes in dromedary camels in Algeria. A total of 39 fecal specimens were collected from young camels. PCR-sequence analysis of the small subunit rRNA was used to detect and genotype Cryptosporidium spp. Cryptosporidium parvum present was further subtyped by sequence analysis of the 60 kDa glycoprotein gene...
January 6, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29322055/the-pcr-rflp-based-detection-and-identification-of-the-leishmania-species-causing-human-cutaneous-leishmaniasis-in-the-khorasan-razavi-province-northeast-of-iran
#11
Anita Mohammadiha, Abdolhossein Dalimi, Mohammad Reza Mahmoodi, Mehdi Parian, Majid Pirestani, Mehdi Mohebali
Background: Leishmania tropica, the causative agent of anthroponotic cutaneous leishmaniasis (ACL), and Leishmania major, which causes zoonotic cutaneous leishmaniasis (ZCL), are endemic in Iran. Methods: Cross-sectional study was designed to identify Leishmania species in cutaneous leishmaniasis patients who referred to Mashhad Health Centers from 2013 to 2014 using ITS-PCR-RFLP technique. First, physical examinations were performed in all suspected patients and CL cases were confirmed with microscopical examinations...
September 2017: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/29320814/genotypic-identification-of-cystoisospora-in-immunocompromised-patients-using-tm-variation-analysis
#12
Maha M A Basyoni, Hany Ahmed Fouad Elghobary
Cystoisospora is responsible for morbidity in immunocompromised patients. PCR is sensitive for diagnosing Cystoisospora; however, it needs reevaluation for differential molecular diagnosis of cystoisosporiasis. We aimed at evaluating melting curve analysis (MCA) after real-time PCR (qPCR) in diagnosis and genotyping of Cystoisospora as an alternative to conventional PCR. We included 293 diarrheic stool samples of patients attending the Department of Clinical Oncology and Nuclear Medicine of Cairo University Hospitals, Egypt...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29318988/morphometric-and-molecular-study-of-fasciola-isolates-from-ruminants-in-iran
#13
Elham Akhlaghi, Mohammad Ali Mohammadi, Naser Ziaali, Mohammad Reza Baneshi, Saeid Nasibi, Hossein Kamyabi, Sima Rostami, Majid Fasihi Harandi
OBJECTIVE: The purpose of the present study was morphometric and molecular characterization of Fasciola isolates from ruminants in Iran. METHODS: Flukes were collected from the livers of 54 naturally infected sheep and cattle. The proportion of body length to width (L/W) of each fresh fluke was measured using a digital caliper. We employed receiver operating characteristic (ROC) curve analysis to explore the reliability of L/W for differentiating the two species...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29318299/discrimination-between-synechocystis-members-cyanobacteria-based-on-heterogeneity-of-their-16s-rrna-and-its-regions
#14
Mojca Juteršek, Marina Klemenčič, Marko Dolinar
Cyanobacteria are an important group of microorganisms displaying a range of morphologies that enable phenotypic differentiation between the major lineages of cyanobacteria, often to the genus level, but rarely to species or strain level. We focused on the unicellular genus Synechocystis that includes the model cyanobacterial strain PCC 6803. For 11 Synechocystis members obtained from cell culture collections, we sequenced the variable part of the 16S rRNA-encoding region and the 16S - 23S internally transcribed spacer (ITS), both standardly used in taxonomy...
December 2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/29317789/aspergillus-subgenus-polypaecilum-from-the-built-environment
#15
J B Tanney, C M Visagie, N Yilmaz, K A Seifert
Xerophilic fungi, especially Aspergillus species, are prevalent in the built environment. In this study, we employed a combined culture-independent (454-pyrosequencing) and culture-dependent (dilution-to-extinction) approach to investigate the mycobiota of indoor dust collected from 93 buildings in 12 countries worldwide. High and low water activity (aw) media were used to capture mesophile and xerophile biodiversity, resulting in the isolation of approximately 9 000 strains. Among these, 340 strains representing seven putative species in Aspergillus subgenus Polypaecilum were isolated, mostly from lowered aw media, and tentatively identified based on colony morphology and internal transcribed spacer rDNA region (ITS) barcodes...
September 2017: Studies in Mycology
https://www.readbyqxmd.com/read/29313482/assessment-of-real-time-polymerase-chain-reaction-for-the-detection-of-trichostrongylus-spp-dna-from-human-fecal-samples
#16
Francesca Perandin, Elena Pomari, Camilla Bonizzi, Manuela Mistretta, Fabio Formenti, Zeno Bisoffi
Sporadic cases of Tricostrongylosis are reported in humans. Diagnosis of enteric Trichostrongylus relies primarily on coproscopic analysis but morphological identification is difficult because of similarity among nematode species. The method is time consuming and requires some expertise. To overcome these limitations, we developed a molecular approach by real-time polymerase chain reaction (PCR) to provide a rapid, specific, and sensitive tool to detect Trichostrongylus spp. in human feces. We designed primers and probe specific for Trichostrongylus rDNA region 5...
January 8, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29310592/characterization-of-non-tuberculous-mycobacterium-from-humans-and-water-in-an-agropastoral-area-in-zambia
#17
Ngula Monde, Musso Munyeme, Adrian Muwonge, John Bwalya Muma, Sydney Malama
BACKGROUND: The non-tuberculous mycobacteria include those mycobacterium species that are not members of the Mycobacterium tuberculosis complex, the causative agent of pulmonary tuberculosis and Mycobacterium leprae. In Zambia, Non-tuberculous Mycobacteria are gaining recognition as pathogens of public health significance. However, there is scanty information on the isolation and speciation of these organisms for better patient management, consequently reducing the burden of these infections...
January 8, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29302626/epidemiological-status-of-dermatophytosis-in-guilan-north-of-iran
#18
A A Fallahi, A Rezaei-Matehkolaei, S Rezaei
Background and Purpose: The epidemiological features of dermatophytoses have been characterized in many geographical locations of Iran, but not in Guilan, North of Iran. This study was carried out to determine the distribution pattern of dermatophytoses and their relevant agents in Guilan, North of Iran, over a period of one year, from April 2010 to April 2011. Materials and Methods: The clinical samples of skin, hair, and nail from 889 outpatients (317 men vs. 572 women) were used for direct microscopy and culture...
March 2017: Advances in Medical Mycology (Iran)
https://www.readbyqxmd.com/read/29302623/molecular-characterization-of-environmental-cladosporium-species-isolated-from-iran
#19
I Ghiaie Asl, M Motamedi, G R Shokuhi, N Jalalizand, A Farhang, H Mirhendi
Background and Purpose: Cladosporium species are ubiquitous, saprobic, dematiaceous fungi, only infrequently associated with human and animal opportunistic infections. Materials and Methods: Airborne samples were collected using the settle plate method, and soil samples were obtained from a depth of 5-10 cm of the superficial soil layer. Samples were cultured on Sabouraud dextrose agar (SDA) plates, incubated at 25°C, and examined daily for fungal colonies for two to three weeks...
March 2017: Advances in Medical Mycology (Iran)
https://www.readbyqxmd.com/read/29302050/demographic-analysis-of-cyanobacteria-based-on-the-mutation-rates-estimated-from-an-ancient-ice-core
#20
Takahiro Segawa, Nozomu Takeuchi, Koji Fujita, Vladimir B Aizen, Eske Willerslev, Takahiro Yonezawa
Despite the crucial role of cyanobacteria in various ecosystems, little is known about their evolutionary histories, especially microevolutionary dynamics, because of the lack of knowledge regarding their mutation rates. Here we directly estimated cyanobacterial mutation rates based on ancient DNA analyses of ice core samples collected from Kyrgyz Republic that dates back to ~12,500 cal years before present. We successfully sequenced the 16S rRNA and 16S-23S internal transcribed spacer (ITS) region. Two cyanobacterial operational taxonomic units (OTUs) were detected from the ancient ice core samples, and these OTUs are shared with those from the modern glacier surface...
January 5, 2018: Heredity
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