Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- Species delimitation (2)
- Algae (1)
- Angles (1)
- Canopies (1)
- Dioscorea (1)
-
- Dioscorea quaternata (1)
- Dioscorea villosa (1)
- Environmental science (1)
- Euphorbia sect. Tithymalopsis (1)
- Euphorbia subgenus Chamaesyce section Alectoroctonum (1)
- Glucose oxidase (1)
- Light (1)
- Limestone (1)
- Local food (1)
- Mississippi (1)
- Nicotiana tabacum (1)
- Nutrition (1)
- Photosynthesis (1)
- Phylogenetics (1)
- Rough (1)
- School gardens (1)
- School kitchen gardens (1)
- Selenastrum capricornutum (1)
- Sustainability (1)
- Theraflu (1)
- Tobacco (1)
- Water Quality (1)
- Wayne County (1)
Articles 1 - 6 of 6
Full-Text Articles in Entire DC Network
The Effects Of Canopy Structure On Photosynthesis In Sphagnum Mosses, Eric Matthew Ward
The Effects Of Canopy Structure On Photosynthesis In Sphagnum Mosses, Eric Matthew Ward
Honors Theses
In open habitats, Sphagnum grows with a dense architecture to retain water; mosses adapted to survive in shade persist in looser canopies. It is unknown if there is a physiological advantage of such rough canopies in the shade, but they may have enhanced photosynthesis at low light angles as would occur during spring or fall. It was hypothesized that the rough canopies would have enhanced rates of photosynthesis at lower angles. To test this, a photosynthesis system interfaced with a custom chamber was used to generate light response curves. Preliminary results of the study found no difference in photosynthesis with …
Species Delimitation And Phylogenetic Relationships Of The Wild Yams (Dioscorea) Native To Eastern North America, Tori A. Collins
Species Delimitation And Phylogenetic Relationships Of The Wild Yams (Dioscorea) Native To Eastern North America, Tori A. Collins
Honors Theses
Most taxonomic treatments currently recognize two to three species of native yams in eastern North America: Dioscorea villosa, D. floridana, and sometimes D. quaternata, a segregate of D. villosa. Earlier authors (e.g., J. K. Small) had recognized as many as five species (with D. hirticaulis and D. glauca also as segregates of D. villosa). Key morphological features in distinguishing these putative species are rhizome morphology (long and cord-like vs. thick and contorted), number of first leaves (1–3 vs. 4–7), and habitat (sandy, rocky, swampy). Unfortunately, these critical features are rarely collected and preserved on herbarium …
A New Species Of Euphorbia Subgenus Chamaesyce Section Alectoroctonum (Euphorbiaceae) From Limestone Hills Of Wayne County, Mississippi, Andrew C. Fennell
A New Species Of Euphorbia Subgenus Chamaesyce Section Alectoroctonum (Euphorbiaceae) From Limestone Hills Of Wayne County, Mississippi, Andrew C. Fennell
Honors Theses
As part of a project to document the vascular flora of Wayne County, Mississippi, an unusual Euphorbia, which keys to the Euphorbia corollata complex, was encountered in mature hardwood forests in limestone regions. Unlike typical E. corollata and E. pubentissima, these individuals have long petioles (0.4–1.2 cm), oval to ovate leaves, short stature, small cyathia, small seeds, and a different phenology. In order to test species boundaries, morphological character differences were explored using principal component analysis (PCA), and additional characters were gathered from plastid (rpL16) and nuclear (ITS) DNA data of the unusual individuals as well …
Expression Analysis Of A Glucose Oxidase Transgene In Tobacco, Jordan Burt
Expression Analysis Of A Glucose Oxidase Transgene In Tobacco, Jordan Burt
Honors Theses
Glucose oxidase (GOX) is an enzyme in plants that catalyzes the oxidation of glucose to hydrogen peroxide and Glucono delta-lactone[5]. We have expressed GOX under the control of an estrogen inducible system, XVE, to analyze the gene's expression under this system compared to a system using the 35s system. The 35s system contains a promoter that constitutively turns on the GOX gene in the Nicotiana tabacum plant which causes the gene to always be turned on. Leaf disc assays were performed with discs from 35s, XVE, and also wild type plants (not containing the GOX gene) in order to extract …
Studying The Effects Of Theraflu On The Growth Of Selenastrum Capricornutum, Hannah Gray Boren
Studying The Effects Of Theraflu On The Growth Of Selenastrum Capricornutum, Hannah Gray Boren
Honors Theses
Algae contribute to self-purification of streams and rivers and are necessary as food for fish and as components of aquatic food webs (1). However, too much or too little algae may create or be indicative of a problem. If nutrients are present in large amounts, algae growth may become excessive, resulting in algal “blooms.” These algal blooms can change the chemistry of the water, making it toxic to other aquatic occupants, including fish, birds, animals, and other plants (1). On the other hand, if nutrients in the water are limiting or are exhausted, algae growth is inhibited, which results in …
School Gardens: Cultivating A Child’S Nutritional Habits, Environmental Knowledge, And Sustainability Practices, Jeffrey Meltzer
School Gardens: Cultivating A Child’S Nutritional Habits, Environmental Knowledge, And Sustainability Practices, Jeffrey Meltzer
Honors Theses
School gardens have existed since the late nineteenth century and today are becoming increasingly popular in many parts of the world, including where I studied in Maine and Australia (AUS). Multiple organizations support school gardens in Maine, including the Maine School Garden Network, which has over 125 registered school gardens. In AUS, the Stephanie Alexander Kitchen Garden Foundation primarily supports the school garden movement and has over 800 registered school gardens. While many researchers have studied school gardens, few have compared two countries, focused on environmental sustainability, or investigated Maine in particular. This thesis combines information from literature reviews, and …