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Full-Text Articles in Life Sciences
The Effect Of Burning On Seed Germination And Seedling Growth Rates Of Sullivant’S Milkweed (Asclepias Sullivantii) And Common Milkweed (Asclepias Syriaca), Mary Nafziger, Given Harper, Faculty Advisor
The Effect Of Burning On Seed Germination And Seedling Growth Rates Of Sullivant’S Milkweed (Asclepias Sullivantii) And Common Milkweed (Asclepias Syriaca), Mary Nafziger, Given Harper, Faculty Advisor
John Wesley Powell Student Research Conference
Sullivant’s milkweed (Asclepias sullivantii) (SM) and Common milkweed (Asclepias syriaca)(CM) are native Illinois plants that are often used in prairie restoration efforts. Before the seeds can be planted using traditional mechanical planters, the filamentous coma (i.e., silk-like ballooning material) must first be physically removed from each seed, which requires hours of tedious manual labor. A more expedient way to remove the comas is to burn them. However, the impacts of burning on seed germination and seedling growth rates are unknown, which was the purpose of my study. Germination rates from unburned CM seeds (0%) were significantly …
Isolation And Characterization Of Novel Mycobacteriophages From The Central Illinois Region, Rachel Aron, Blake Beehler, Rachel Ende, Logan Garthe, Netherland Joiner, Tess Kelley, Lauren Killough, Michal Kozdronkiewicz, Jessica Kraut, Jennifer Lang, Matthew Piotrowiak, Prartana Ramachandran, Loni Walker, Faculty Advisor
Isolation And Characterization Of Novel Mycobacteriophages From The Central Illinois Region, Rachel Aron, Blake Beehler, Rachel Ende, Logan Garthe, Netherland Joiner, Tess Kelley, Lauren Killough, Michal Kozdronkiewicz, Jessica Kraut, Jennifer Lang, Matthew Piotrowiak, Prartana Ramachandran, Loni Walker, Faculty Advisor
John Wesley Powell Student Research Conference
Members of the Illinois Wesleyan General Biology Science Education Alliance (SEA) laboratory isolated and characterized fifteen distinctive phages capable of infecting Mycobacterium smegmatis. Each student collected soil samples from the central Illinois area and used direct plating or enrichment techniques to isolate phages. Streak assays were used to purify single phage populations. Individual phage populations were then characterized and DNA was isolated. Based on the following characteristics; plaque morphology (size and turbidity), life style (temperate or lytic) and DNA restriction patterns, we determined that each student has isolated a unique phage. The DNA from a single Mycobacteriophage, Kazan, was …
A New Species Of Frog Of The Genus Pristimantis (Strabomantidae) From A Cloud Forest In Southern Peru, Anton Baltuska, Edgar Lehr, Faculty Advisor
A New Species Of Frog Of The Genus Pristimantis (Strabomantidae) From A Cloud Forest In Southern Peru, Anton Baltuska, Edgar Lehr, Faculty Advisor
John Wesley Powell Student Research Conference
Frogs of the genus Pristimantis are found throughout northern South America in various habitats ranging from lowland rainforest, cloud forest and up to 4000 m in the puna. Members of the family Strabomantidae breed terrestrially without a free swimming tadpole; instead froglets hatch from terrestrially deposited eggs. Of the 455 known species of Pristimantis 123 are known from Peru. Here we describe a new species from the Cordillera Central in the Andes of southern Peru. The new species is known from only one female specimen. It is readily distinguished from all other members of the genus by a combination of …