Botany Commons^™

Morus Tatarica L., John E. Ebinger

Specimens by Name

No abstract provided.

Impacts Of Goat Browsing And Disease On Lilium Grayi, Gray's Lily, On Roan Mountain., Joseph Powell

Undergraduate Honors Theses

The flora of southern Appalachian high elevation balds has strong representation of northern disjuncts and regional endemics. Among the endemics, the showy Lilium grayi (Gray’s Lily), is most noteworthy for its historical significance and for a high public profile. As bald vegetation changes in response to human and natural environmental shifts, active bald management has been implemented on public lands. Among managed balds, the Roan Mountain massif supports a large population of L. grayi. The purpose of this study was to describe the demography of adult plants, compare browsed and non-browsed plots, and determine the extent to which disease …

Summaries Of Arkansas Cotton Research 2010, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

The Role Of Albino3 And The Lipid Environment In Chloroplast Signal Recognition Particle Targeting, Nathan Lewis

Graduate Theses and Dissertations

Signal recognition particles (SRPs) in pro- and eukaryotes function in cotranslational targeting of nascent poplypeptides to an SRP receptor at the target membrane. A unique chloroplast SRP (cpSRP) functions post-translationally to direct light-harvesting chlorophyll-binding proteins (LHCPs) to the receptor cpFtsY at the thylakoid membrane for LHCP insertion in a process involving the integral membrane protein Albino3 (Alb3) and requiring GTP. Work here focuses on understanding cpSRP targeting events at the thylakoid membrane, specifically those involving Alb3 and the lipid environment.

We show an interaction between the novel cpSRP subunit cpSRP43 and the soluble, stromal-exposed C terminus of Albino3 (Alb3-Cterm). We …

White Oak Part Of Global Oak Presence, W. John Hayden

Biology Faculty Publications

As we act locally celebrating white oak, Quercus alba, as the 2011 VNPS Wildflower of the Year, it is perhaps appropriate to think globally for a few moments and consider the breadth of diversity encompassed by the oaks. Quercus is a big genus, easily the largest in its family, the Fagaceae. Approximately 400 species of oak are known, and they are widely distributed in the northern hemisphere. We tend to think of oaks as temperate zone trees, but in the New World, their range extends south through the mountains of Central America to Colombia and in the Old World, …

Viola Pratincola Greene, W. E. Mcclain

Specimens by Name

No abstract provided.

Dodecatheon Meadia L., W. E. Mcclain

Specimens by Name

No abstract provided.

Viola Pratincola Greene, W. E. Mcclain

Specimens by Name

No abstract provided.

Viola Pratincola Greene, John E. Ebinger

Specimens by Name

No abstract provided.

Viola Pedata L., John E. Ebinger

Specimens by Name

No abstract provided.

Claytonia Virginica L., John E. Ebinger

Specimens by Name

No abstract provided.

Traversing Swanton Road, 5th Ed., James A. West

Academic, Government & Associated Organizational Research Resources

Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …

Screening Synteny Blocks In Pairwise Genome Comparisons Through Integer Programming, Haibao Tang, Eric Lyons, Brent S. Pedersen, James C. Schnable, Andrew H. Paterson, Michael Freeling

Department of Agronomy and Horticulture: Faculty Publications

Background:

It is difficult to accurately interpret chromosomal correspondences such as true orthology and paralogy due to significant divergence of genomes from a common ancestor. Analyses are particularly problematic among lineages that have repeatedly experienced whole genome duplication (WGD) events. To compare multiple “subgenomes” derived from genome duplications, we need to relax the traditional requirements of “one-to-one” syntenic matchings of genomic regions in order to reflect “one-to-many” or more generally “many-to-many” matchings. However this relaxation may result in the identification of synteny blocks that are derived from ancient shared WGDs that are not of interest. For many downstream analyses, we …

Arctic Mustard Flower Color Polymorphism Controlled By Petal-Specific Downregulation At The Threshold Of The Anthocyanin Biosynthetic Pathway, Cynthia A. Dick, Jason Buenrostro, Timothy Butler, Matthew L. Carlson, Daniel J. Kliebenstein, Justen B. Whittall

Biology

Intra- and interspecific variation in flower color is a hallmark of angiosperm diversity. The evolutionary forces underlying the variety of flower colors can be nearly as diverse as the colors themselves. In addition to pollinator preferences, non-pollinator agents of selection can have a major influence on the evolution of flower color polymorphisms, especially when the pigments in question are also expressed in vegetative tissues. In such cases, identifying the target(s) of selection starts with determining the biochemical and molecular basis for the flower color variation and examining any pleiotropic effects manifested in vegetative tissues. Herein, we describe a widespread purple-white …

Viola Sororia Willd., W. E. Mcclain

Specimens by Name

No abstract provided.

Section Abstracts: Botany

Virginia Journal of Science

Abstracts of the Botany Section for the 89th Annual Meeting of the Virginia Academy of Science, May 25-27, 2011. University of Richmond, Richmond VA.

Sedges: Carex, Robert H. Mohlenbrock

Illustrated Flora of Illinois

Sedges: Carex is the fourteenth volume of The Illustrated Flora of Illinois series and the sixth and last volume devoted to monocots-plants that have a single seed leaf, or cotyledon, upon germination.

Since the volume's original publication in 1999, thirty-four additional species of plants have been recognized in Illinois. Some are discoveries from recent field work, some are from more thorough searches of herbaria, and others are from different taxonomic philosophies.

For each species of Carex in Illinois, there is a full illustration showing the habit of the plant and close-ups of various vegetative and reproductive structures that are crucial …

Review Of 620 Wild Plants Of North America: Fully Illustrated. By Tom Reaume., Mark J. Leoschke

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Beautifully and profusely illustrated with the author's black-and-white drawings, the 12-year project that became this book shows his love for plants. Tom Reaume focuses on a representative selection of primarily native vascular plants of the Great Plains of Canada and the northern United States found in forests, lakes, prairies, rivers, and wetlands. The book appears to be designed as a supplement for an introductory course in plant taxonomy.

This book is a useful reference for those interested in the flora of the northern Great Plains and adjacent regions. I highly recommend it for college and university libraries where botany and …

Review Of The Tallgrass Prairie Center Guide To Seed And Seedling Identification In The Upper Midwest. By Dave Williams., H. L. Hillhouse

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

This book will please both practitioners of prairie restoration and more general prairie enthusiasts. It includes 72 grass and forb species, and the focus is clearly on species often found in tallgrass prairie plantings in the upper Midwest. The grasses and forbs are presented separately here, and for each group a morphological key is provided to divide the species into "Key Characteristic Groups." Because these groups are based on morphological similarity, species within a group are often-but not always-closely related.

Short and highly portable, the book covers the most common species in plantings. The only thing that would have delighted …

Mojave Applied Ecology Notes Spring 2011, Scott R. Abella, Ross Guida, S. D. Smith, Christopher L. Roberts, Haroon Stephen, William J. Smith, Zhongwei Liu, James S. Holland, Aurore Giguet

Mojave Applied Ecology Notes

Red brome distribution in the eastern Mojave Desert, A look at the UNLV xeric gardens and Marjorie Barrick museum, Summary of recent science synthesis efforts