Results 11 to 20 of about 267,584 (295)

Diversidad morfológica y molecular de los Unionidae (Mollusca, Bivalvia) de Portugal

Graellsia, 2013
Las náyades de la familia Unionidae tienen gran plasticidad fenotípica, lo que se refleja en la forma de su concha. Esta variabilidad morfológica ha sido causa de gran confusión en la taxonomía y sistemática del grupo.
J. Reis, A. Machordom, R. Araujo
doaj   +1 more source

Jumping the green wall: The use of PNA‐DNA clamps to enhance microbiome sampling depth in wildlife microbiome research

Ecology and Evolution, 2020
As microbiome research moves away from model organisms to wildlife, new challenges for microbiome high‐throughput sequencing arise caused by the variety of wildlife diets.
Luis Víquez‐R, Ramona Fleischer, Kerstin Wilhelm, Marco Tschapka, Simone Sommer   +4 more
doaj   +1 more source

Implementación de una estrategia de espectrometría de doble masa MALDI TOT/TOF para la identificación molecular de bacterias del intestino de trips del banano

Manglar, 2018
Los insectos plaga, conocidos como trips del banano (Chaetanaphothrips signipennis y Frankliniella parvula), vienen causando serios daños económicos al sector bananero de la costa norte del Perú.
Néstor Díaz-Castillo, Dicson Sánchez, Mercedes Oyola, Pedro Masías, R. García-Seminario, Virna Cedeño, Eric Mialhe   +6 more
doaj   +1 more source

Long-read MinION™ sequencing of 16S and 16S-ITS-23S rRNA genes provides species-level resolution of Lactobacillaceae in mixed communities

Frontiers in Microbiology, 2023
The Lactobacillaceae are lactic acid bacteria harnessed to deliver important outcomes across numerous industries, and their unambiguous, species-level identification from mixed community environments is an important endeavor.
Sandra A. Olivier, Sandra A. Olivier, Michelle K. Bull, Michelle K. Bull, Mikael Lenz Strube, Robert Murphy, Tom Ross, John P. Bowman, Belinda Chapman, Belinda Chapman   +9 more
doaj   +1 more source

Characterization of the human tumor microbiome reveals tumor-type specific intra-cellular bacteria

OncoImmunology, 2020
Many characteristics of cancer such as proliferation, survival, progression, immunogenicity, sensitivity, and resistance to therapy are not just endogenously driven by the tumor cells themselves, but are greatly affected by their interaction with the ...
Ilana Livyatan, Deborah Nejman, Noam Shental, Ravid Straussman   +3 more
doaj   +1 more source

Engineering CRISPR/Cas9 to mitigate abundant host contamination for 16S rRNA gene-based amplicon sequencing

Microbiome, 2020
Background High-throughput sequencing of bacterial 16S rRNA gene (16S-seq) is a useful and common method for studying bacterial community structures. However, contamination of the 16S rRNA genes from the mitochondrion and plastid hinders the sensitive ...
Luyang Song, Kabin Xie
doaj   +1 more source

Hidden diversity under morphology-based identifications of widespread invasive species: the case of the ‘well-known’ hydromedusa Craspedacusta sowerbii Lankester 1880

Animal Biodiversity and Conservation, 2019
La diversidad oculta en las identificaciones basadas en la morfología de especies invasoras de amplia distribución: el caso de la “bien conocida” hidromedusa Craspedacusta sowerbii Lankester 1880 El número relativamente escaso de características ...
J. A. Oualid, B. Iazza, N. M. Tamsouri, F. El Aamri, A. Moukrim, P. J. López–González   +5 more
doaj   +1 more source

Delineating Microhyla ornata (Anura, Microhylidae): mitochondrial DNA barcodes resolve century-old taxonomic misidentification

Mitochondrial DNA. Part B. Resources, 2018
Microhyla ornata, a species originally described from the southwest coast of India in 1841, was long reported to be wide-ranging throughout South, Southeast, and East Asia. Although the name M.
Sonali Garg, Abhijit Das, Rachunliu G. Kamei, S. D. Biju   +3 more
doaj   +1 more source

Microbial Composition and Diversity of High-demand Street-vended Foods in Ecuador

Journal of Food Protection
Developing countries such as Ecuador carry a heavy food safety burden but reports on the microbiological quality of their foods are scarce. In this investigation, the microbial diversity of 10 high-risk and mass-consumption street-vended foods including ...
Byron Díaz Cárdenas, Enrique Salazar Llorente, Ganyu Gu, Xiangwu Nou, Johana Ortiz, Pedro Maldonado, Juan Manuel Cevallos-Cevallos   +6 more
doaj   +1 more source

Conservative fragments in bacterial 16S rRNA genes and primer design for 16S ribosomal DNA amplicons in metagenomic studies. [PDF]

PLoS ONE, 2009
Bacterial 16S ribosomal DNA (rDNA) amplicons have been widely used in the classification of uncultured bacteria inhabiting environmental niches. Primers targeting conservative regions of the rDNAs are used to generate amplicons of variant regions that ...
Yong Wang, Pei-Yuan Qian
doaj   +1 more source