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Articles 1 - 10 of 10
Full-Text Articles in Biology
Fish And Macroinvertebrate Response To Restoration And Conservation Efforts, Madison C. Cogar
Fish And Macroinvertebrate Response To Restoration And Conservation Efforts, Madison C. Cogar
MSU Graduate Theses
Fish and macroinvertebrate response to restoration and conservation efforts varies in regards to the size and structure of the system (e.g. headwater streams in WV versus large rivers such as the Mississippi River). This project reviews fish and macroinvertebrate rebound in treated acid mine drainage (AMD) streams in WV as well as macroinvertebrate drift patterns in the Mississippi and Missouri Rivers. AMD is a product of a chemical reaction resulting in an acidic water outflow from mining sites, which may harm aquatic life. As a response, passive AMD treatment systems have been installed. I tested the effectiveness of remediation by …
Spatial Use By Mammals Within Two State Parks In The Ozarks National Scenic Riverways, Benjamin Aaron Smith
Spatial Use By Mammals Within Two State Parks In The Ozarks National Scenic Riverways, Benjamin Aaron Smith
MSU Graduate Theses
A mammalian species inventory with comparisons between sampled sites was conducted via multiple methodologies to document presence of mammals at two Missouri state parks within the Ozark National Scenic Riverways. Camera traps, small mammal traps, acoustic detectors, and mist nets were used to detect species at the parks, and species similarity indices and occupancy analyses were used to discern use of space. A mammalian inventory was compiled for each area of inquiry. Greater diversity was found at the park with more variable habitat types. Bat activity was more in the park with a known hibernaculum, though species specific activity differed …
Population Structure And Habitat Use Of Bluegill In The Upper Mississippi River, Ethan Allyn Rutledge
Population Structure And Habitat Use Of Bluegill In The Upper Mississippi River, Ethan Allyn Rutledge
MSU Graduate Theses
Fish populations are driven by the dynamic rate functions (i.e., recruitment, growth, and mortality). Knowledge of these vital rates can provide critical information to determine spatiotemporal population-level changes in the system. Therefore, understanding these vital rates are important in the proper management of any fishery. Anthropogenic modifications to the environment have had damaging effects on the organisms within these ecosystems. Specific to Upper Mississippi River fishes, channelization, dams, and loss of floodplain connectivity have all been purported as deleterious. In the face of these modifications, understanding habitat use and vital rates of individual species is needed to help guide management …
The Effects Of An Applied Phyllosphere-Microbiome On Gas Exchange And Growth Of Soybean Infected With Pseudomonas Syringae: Harnessing The Power Of The Microbiome, Charles Agbavor
MSU Graduate Theses
The microbiome is an important determinant of plant health, growth and resistance to stress. This study was conducted to determine the efficacy of the phyllosphere-microbiome on managing Pseudomonas syringae pv. Glycinea (Psg), gas exchange and growth of Glycine max L. Merrill. A greenhouse study was conducted in the summer of 2019. A field isolated and cultured soybean phyllosphere-microbiome was applied to purposely infected and uninfected soybean. Gas exchange, Psg density, chlorophyll concentrations, and percent nitrogen and carbon in the leaves were measured during the V3-V6 stages of soybean. Not surprisingly, there was a two-fold reduction in copies of Pseudomonas …
Dragonflies And Damselflies (Insecta: Odonata) As Indicators For Riparian Condition In Ozark Spring Streams, Cameron Riley Cheri
Dragonflies And Damselflies (Insecta: Odonata) As Indicators For Riparian Condition In Ozark Spring Streams, Cameron Riley Cheri
MSU Graduate Theses
The Odonata (dragonflies and damselflies) are often ineffectively sampled during standard stream bioassessments in North America. Subsequently, odonates are not frequently regarded as informative taxa for stream assessment, particularly when monitoring the ecological impacts of organic pollution. I hypothesized that stream-dwelling odonates should be more useful bioindicators for the assessment of riparian conditions surrounding streams because vegetation associated with streams is used for oviposition, roosting and to establish breeding territories. I selected twelve Ozark spring streams that satisfied a broad array of riparian conditions for study. I sampled each stream’s odonate and total benthic community along with both instream and …
Investigation Of The Individual Soybean Root Nodule Microbiome, Parris Mica Mayhood
Investigation Of The Individual Soybean Root Nodule Microbiome, Parris Mica Mayhood
MSU Graduate Theses
Soybean is a valuable crop that establishes a symbiotic association with nitrogen-fixing microorganisms. Previous research suggests members of the genus Bradyrhizobium are the major nitrogen-fixing inhabitants of soybean root nodules. However, results from recent studies identified the presence of other bacteria, so called non-rhizobial endophytes (NREs), inside root nodules. All previous research has pooled nodules of different plants for bacterial community analysis, but this study investigated the presence and relative abundance of rhizobia and NREs within multiple root nodules of a single plant. Three sites were selected on Kendrick Farm in Springfield, MO, where three plants and rhizosphere soil were …
Habitat Selection And Host Detection In The Salamander Mussel, Simpsonaias Ambigua, Eric A. Stegmann
Habitat Selection And Host Detection In The Salamander Mussel, Simpsonaias Ambigua, Eric A. Stegmann
MSU Graduate Theses
The native freshwater mussels, Order Unionida, have suffered many species extinctions and loss of abundance. Two important threats to native mussels are loss of habitat and loss of access to the vertebrate hosts of the parasitic mussel larvae. The Salamander mussel, Simpsonaias ambigua, is a habitat specialist, living under flat rocks. It is often found in direct association with its only known host, the common mudpuppy, Necturus maculosus. This association could result from movement and habitat selection by the mussels themselves. Alternatively, it might result from the deposition of juveniles by a resident host. Habitat selection and host …
Effect Of Silver And Cadmium Nanoparticles On Endocytosis And Protein Recycling In Yeast, Lakshmi Sravya Rallabandi
Effect Of Silver And Cadmium Nanoparticles On Endocytosis And Protein Recycling In Yeast, Lakshmi Sravya Rallabandi
MSU Graduate Theses
Endocytosis is a highly regulated process crucial for recycling of plasma membrane proteins and lipids. Derailments in this trafficking pathway pose threat to normal functioning of somatic cells. Engineered nanoparticles are used extensively in industry due to unique physicochemical properties. However, these nanoparticles, at high concentrations are known to create toxic effects on biological tissues. With this recent information, I investigated the potential toxicity of silver nanoparticles (AgNP) and cadmium selenium/zinc sulfide (CdSe/ZnS) quantum dots (QDs) on liquid phase endocytosis pathway in Saccharomyces cerevisiae. My data provided evidence that treatment of yeast cells with AgNP and CdSe/ZnS QDs resulted …
The Effects Of Titanium Dioxide Nanoparticles On The Growth And Development Of Sorghum Bicolor (L.) Moenech, Adam Gregory Shoemaker
The Effects Of Titanium Dioxide Nanoparticles On The Growth And Development Of Sorghum Bicolor (L.) Moenech, Adam Gregory Shoemaker
MSU Graduate Theses
Engineered nanoparticles (ENPs) have seen a drastic increase in their use over the past decade in various consumer products. ENPs will therefore enter terrestrial ecosystems and soils with increasing frequencies, yet research into the effects of ENPs on living organisms and crops is greatly lacking. Currently, there is only one major study reported on the effects of a single ENP, silver quantum dots, on Sorghum bicolor, the 5th largest crop in the world. I examined the effects of a commonly used metal oxide nanoparticle, titanium dioxide (TiO2), on the growth and development of sorghum grown in …
Novel Cyanoximates As An Alternative In Cancer Chemotherapy, Kafayat Aderonke Yusuf
Novel Cyanoximates As An Alternative In Cancer Chemotherapy, Kafayat Aderonke Yusuf
MSU Graduate Theses
Chemotherapy is one of the most effective treatment plans for several cancer types. The recurrent side effects derived from chemotherapy agents have warranted the search for novel chemical compounds with better efficacy and minimal side effects. In line with this idea, I investigated effects of a group of newly synthesized metal based chemical compounds called cyanoximates on HeLa human cancer cells. Cyanoximates used were Pt(DECO)2, Pt(MCO)2, and Pd(DECO)2 along with the chemotherapy drug cisplatin as a positive control. I found that the metal cyanoximates reduced cell viability via apoptosis, and that Pt(DECO)2 was most …