Results 31 to 40 of about 418,926 (311)

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

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

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

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

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

16S

, 2013
Alignment of partial 16S ribosomal gene of Zanclea sp.
Chao-Yang Kuo (102985), Wan-Sen Tsai (115767), Chaolun Allen Chen (102991), Vianney Denis (102978), Julia K. L. Leung (115764), Chia-Ming Hsu (115761), Carden C. Wallace (115769), Silvia Fontana (115757), Shashank Keshavmurthy (102989), Hernyi Justin Hsieh (115758)   +9 more
core   +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

Analysis of the bacterial communities in the rhizosphere of Chrysanthemum via denaturing gradient gel electrophoresis of PCR- amplified 16S rRNA as well as DNA fragments coding for 16S rRNA [PDF]

, 2001
The effect of developing chrysanthemum roots on the presence and activity of bacterial populations in the rhizosphere was examined by using culture-independent methods.
Anneke Keijzer, Van Elsas, J.D., Duineveld, B.M., Kowalchuk, G.A., Van Veen, J.A., George A. Kowalchuk, Jan Dirk van Elsas, Keijzer, A., Veen, J.A., van, Bernadette M. Duineveld, Elsas, J.D., van, Johannes A. van Veen   +11 more
core   +1 more source

OTU analysis using metagenomic shotgun sequencing data. [PDF]

PLoS ONE, 2012
Because of technological limitations, the primer and amplification biases in targeted sequencing of 16S rRNA genes have veiled the true microbial diversity underlying environmental samples. However, the protocol of metagenomic shotgun sequencing provides
Xiaolin Hao, Ting Chen
doaj   +1 more source