Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 49 for “"novel species"”.
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Ocean Acidification and Seasonal Temperatures Counter Positive Novel Species Interaction and Warming Effects on Tropicalising Temperate Fish Communities
… warming has facilitated the redistribution of species globally. Many tropical species have shifted their ranges poleward either to escape thermally unsuitable conditions or to invade previously inaccessible temperate environments. Climate-driven species redistributions have facilitated …
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Designing high-performance yeast factories for the production of high-value aromatics based on a novel species and its consortia
… xylose metabolization together with a novel xylose-specific transporter that is free from glucose inhibition resulted in efficient simultaneous mixed-sugar utilization in S. stipitis. Further introduction of a minimal shikimate-accumulating pathway resulted in the highest shikimate …
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VERTEBRATE COMMUNITY CHANGES ACROSS A 3200M AMAZON-TO-ANDES GRADIENT: COMPOSITION, STRUCTURE, AND OCCUPANCY
… depends heavily on understanding current species distributions. However, most Neotropical vertebrate distributions are poorly known and depend on field survey techniques which may not capture the full extent of an animals’ range. Here we present findings from two camera surveys in 2013 and …
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Detection of campyloabacter jejuni and campylobacter coli in high risk foods and environmental waters using the polymerase chain reaction
… investigated for the detection of Campylobacter species in foods and environmental waters. A novel species-specific PCR was adapted into a high-throughput, colorimetric end-stage detection format (PCR ELISA). The sensitivity of detection of the PCR ELISA assay was equivalent to one genome copy …
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Identifying functional groups in microbial communities based on ecological patterns
… is often performed by a group of multiple species (i.e., a functional group) at the same time. However, identifying these functional groups remains to be a major challenge for structure-function mapping in microbiome studies. Instead of relying on annotation-based methods that are highly …
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Studies on the fungal diseases of mango with particular reference to diseases caused by Botryosphaeria species
… assess the presence and the diversity of fungal species associated with different symptoms patterns observed on mango trees during a survey conducted in 2009-2010. Several fungi have been isolated and tentatively identified up to genus level. The most encountered isolated fungal taxa were …
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Investigating the Utility of Environmental DNA Analysis for the Monitoring and Management of Mid-Atlantic Alosine Fishes
… the Choptank River and developed and validated novel species-specific eDNA assays for American and hickory shads. River herring eDNA concentrations from daily eDNA sampling were highly correlated to sonar-based fish counts (Spearman’s Rho = 0.84). This relationship informed a model that could …
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Deep learning approach to metagenomic binning
… slow or lack the sensitivity needed to identify novel species. We propose a convolutional neural network (CNN) based approach to metagenomic binning that embeds reads into a low-dimensional vector space based on taxonomic classification. We show that our method can get the speed and sensitivity …
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New Species and Phylogeny of the Genus Phytophthora
… pathogens. Characterization of new Phytophthora species is the first and a most critical step to understanding their biology, ecology and economic importance. Six novel Phytophthora species recovered from irrigation systems at ornamental plant nurseries in Mississippi and Virginia were described …
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Screening environmental actinobacteria for antimycobacterial antibiotics and characterisation of Kribbella stellenboschensis sp. nov
… (31) strains were identified as Streptomyces species, six strains were identified as Micromonospora species, one strain was identified as a Nocardia species, one strain was identified as a Kitasatospora species, and one strain was identified as a member of the genus Tsukamurella. These …
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Pseudomonas spp. Isolated from the Soybean Nodule Interior Promote Soybean Growth upon Field Amendment
… from a previous greenhouse study show that a novel species of Pseudomonas associates with soybean nodules as a plant-growth promoting rhizobacteria (PGPR). This study observes the soybean growth promoting potential of Pseudomonas spp. in a field setting. Additionally, this study observed …
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The 16S rRNA characterization of a novel "microaerophilic" Pseudomonas sp. from the oligotrophic deep subsurface environment
… confirm the hypothesis that strain MR 100 is a novel species of <i>Pseudomonas</I. It was able to accumulate poly-β-hydroxybutyrate intracellularly, while it lacked the ability to produce cellular pigments, which is unique among the (Group I) pseudomonads. Growth occurred at oxygen …
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Chromatography and purification of endohedral metallofullerenes
… properties. Predicted applications for these novel species include their use as possible superconductors, catalysts, and non-linear optical devices. However, initial purification efforts have been hindered by several difficulties. These factors include a low abundance (< 1%) in the raw …
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Thermotolerant purple nonsulfur bacteria from New Zealand geothermal areas
… and Blastochloris isolates represented novel genospecies, though some could not be unambiguously distinguished by their phenotypic properties. The novel species Rhodoplanes venustus sp. nov., Rhodoplanes segnis sp. nov., and Phaeospirillum tepidarium sp. nov. are proposed. Molecular …
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Techniques for the identification and differentiation of Cronobactor species
The Cronobacter genus currently consists of seven species: C. condimenti, C. dublinensis, C. malonaticus, C. muytjensii, C. sakazakii, C. turicensis, and C. universalis. The work presented here was undertaken to examine different methods for detection, identification, and characterization of the …
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An Evaluation of the risks to food safety and shellfish farming in Great Britain,posed by marine biotoxins from, current and future emerging, marine microalgal species
… on marine organisms including the harmful algal species. These changes will have impacts on species already present in a nations waters whilst also influencing the emergence of novel species. This is assessed here, in part, with regards to Great Britain (GB). This thesis explores the current …
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Neural Network Techniques for the Identification and Classification Marine Phytoplankton from Flow Cytometric Data
… has been established, and analysis of 62 marine species of phytoplankton represents an<br/>advancement in the number of classes investigated.<br/><br/>The complexity and abundance of heterogeneous phytoplankton<br/>populations, renders an original multi-class network redundant each time a novel …
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Sampling, Detection, and Characterization of Endogenous Peptides
… in many research labs around the globe. Over 600 species of Conus exist, each having a vast array of toxins evolutionarily developed to target specific ligand and ion gated channels. Here I describe the first peptides characterized from the novel species of Conus californicus. Next, I will …
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The evolutionary genomics of CTCF binding and functional signatures in mouse.
Genetic differences within and between species predominantly lie in the noncoding sequence of the regulatory regions of the genome whose function and significance largely remain poorly understood. Despite significant progress in the field of genomics and the rapid progress in sequencing methods and …
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Taxonomic classification of metagenomic sequences
… from the microbial communities and the exact species of origin is unknown. Over the past few years, different methods have been developed for the taxonomic and functional characterization of metagenomic shotgun sequences. However, the taxonomic classification of metagenomic sequences from …
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