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Botany

2008

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Articles 61 - 90 of 190

Full-Text Articles in Life Sciences

Botany At Eastern Illinois University, Marissa C. Jernegan, Nancy Coutant, Janice M. Coons Jun 2008

Botany At Eastern Illinois University, Marissa C. Jernegan, Nancy Coutant, Janice M. Coons

Faculty Research & Creative Activity

Eastern Illinois University was established in 1899, and from its beginning recognized the importance of the botanical sciences. Two terms of botany were required for the four year program. Otis W. Caldwell, a botanist, was one of the original faculty members. He taught all of the biology courses and initiated the acquisition of a greenhouse. Caldwell was the first of a series of talented and dedicated botany professors including Edgar N. Transeau, Ernest L. Stover, Hiram F. Thut and John E. Ebinger. These and many other professors incorporated a field component into almost all classes. This dedication to the study …


Western Australian Rangeland Monitoring System For Grasslands: Field Manual, Andrew Craig, Philip Thomas Jun 2008

Western Australian Rangeland Monitoring System For Grasslands: Field Manual, Andrew Craig, Philip Thomas

Bulletins 4000 -

Western Australian Rangeland Monitoring System (WARMS) sites are designed to provide defined areas for repeated photography and collection of vegetation composition, shrub/tree cover and landscape function (soil surface assessment) data. This manual defines the procedures for installing and monitoring WARMS sites in the grasslands of northern Western Australia. It provides a documented reference of site stratification at regional scale, and site allocation at station (property) scale. Different procedures apply for sites in the shrublands of the southern pastoral zone. WARMS is designed to be interpreted at the vegetation type or regional scale, rather than lease (station) scale. Information gathered is …


Acer Davidii Franch., Gordon C. Tucker May 2008

Acer Davidii Franch., Gordon C. Tucker

Specimens by Name

No abstract provided.


The Vascular Flora Of The Owens Peak Eastern Watershed, Southern Sierra Nevada, California, Naomi S. Fraga May 2008

The Vascular Flora Of The Owens Peak Eastern Watershed, Southern Sierra Nevada, California, Naomi S. Fraga

Aliso: A Journal of Systematic and Floristic Botany

Owens Peak lies at the southern end of the Sierra Nevada within the Bureau of Land Management’s Owens Peak Wilderness Area in Kern County, California. The study site, ca. 50 square miles, encompasses Owens Peak’s eastern watershed, and ranges in elevation from 800–2600 m (2600–8400 ft). Granite rocks of the Sierra Nevada batholith underlie the study area. The eastern watershed of Owens Peak is botanically diverse, with 64 families, 230 genera, and 440 taxa currently documented. Floristic elements within the study area include the southern Sierra Nevada, Great Basin, and Mojave Desert. The flora previously was poorly documented, as discovered …


Cantua Dendritica (Polemoniaceae), A New Species From Peru, And Two New Cantua Names, J. Mark Porter, L. Alan Prather May 2008

Cantua Dendritica (Polemoniaceae), A New Species From Peru, And Two New Cantua Names, J. Mark Porter, L. Alan Prather

Aliso: A Journal of Systematic and Floristic Botany

Cantua dendritica is described as new. This species is apparently restricted to the region around Paucartambo, Department of Cusco, Peru. Related to, and frequently identified as, Cantua flexuosa, this new species differs in its glandular calyx, highly branched trichomes on the margin of the corolla lobes, and its softly herbaceous, glandular pilose leaves. In addition, two new names are proposed in Cantua for the two species of Huthia that have been transferred to Cantua, C. volcanica (formerly Huthia caerulea), and C. mediamnis (formerly H. longiflora).


Index May 2008

Index

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.


Claytonia Virginica L., Paul B. Marcum, Loy R. Phillippe May 2008

Claytonia Virginica L., Paul B. Marcum, Loy R. Phillippe

Specimens by Name

No abstract provided.


Viola Sororia Willd., Paul B. Marcum, Loy R. Phillippe May 2008

Viola Sororia Willd., Paul B. Marcum, Loy R. Phillippe

Specimens by Name

No abstract provided.


Viola Affinis Leconte, Paul B. Marcum, Loy R. Phillippe May 2008

Viola Affinis Leconte, Paul B. Marcum, Loy R. Phillippe

Specimens by Name

No abstract provided.


Acer Negundo L., Paul B. Marcum, Loy R. Phillippe May 2008

Acer Negundo L., Paul B. Marcum, Loy R. Phillippe

Specimens by Name

No abstract provided.


Morus Alba L., Paul B. Marcum, Loy R. Phillippe May 2008

Morus Alba L., Paul B. Marcum, Loy R. Phillippe

Specimens by Name

No abstract provided.


Grevillea Robusta A. Cunningham Ex R. Br., J. Richard Abbott May 2008

Grevillea Robusta A. Cunningham Ex R. Br., J. Richard Abbott

Specimens by Name

No abstract provided.


Tetrastigma Voinieranum (Baltet) Pierre Ex Gagnep., Richard J. Abott May 2008

Tetrastigma Voinieranum (Baltet) Pierre Ex Gagnep., Richard J. Abott

Specimens by Name

No abstract provided.


Viola Sororia Willd., Paul B. Marcum May 2008

Viola Sororia Willd., Paul B. Marcum

Specimens by Name

No abstract provided.


Application And Optimization Of Bioluminescence Resonance Energy Transfer (Bret) For Real Time Detection Of Protein-Protein Interactions In Transgenic Arabidopsis As Well As Structure-Based Functional Studies On The Active Site Of Coelenterazine-Dependent Luciferase From Renilla And Its Improvement By Protein Engineering, Jongchan Woo May 2008

Application And Optimization Of Bioluminescence Resonance Energy Transfer (Bret) For Real Time Detection Of Protein-Protein Interactions In Transgenic Arabidopsis As Well As Structure-Based Functional Studies On The Active Site Of Coelenterazine-Dependent Luciferase From Renilla And Its Improvement By Protein Engineering, Jongchan Woo

Doctoral Dissertations

Bioluminescence resonance energy transfer (BRET) is a biological phenomenon in some marine organisms such as Renilla reniformis and Aequorea victoria. In BRET, resonance energy from decarboxylation of coelenterazine, a substrate of Renilla luciferase (RLUC), is transferred to its acceptor such as green fluorescent protein (GFP) or yellow fluorescent protein (YFP), dependent on a distance of around 5 nm between the energy donor (RLUC) and its acceptor. The activation of the energy acceptor results in a spectral change in luminescence emission. The BRET system allows investigation of in vivo protein-protein interactions in real time. This was demonstrated with two heterodimeric …


Plant Functional Types Do Not Predict Biomass Responses To Removal And Fertilization In Alaskan Tussock Tundra, M. Syndonia Bret-Harte, Michelle C. Mack, Gregory R. Goldsmith, Daniel B. Sloan, Jennie Demarco, Gaius R. Shaver, Peter M. Ray, Zy Biesinger, F. Stuart Chapin Apr 2008

Plant Functional Types Do Not Predict Biomass Responses To Removal And Fertilization In Alaskan Tussock Tundra, M. Syndonia Bret-Harte, Michelle C. Mack, Gregory R. Goldsmith, Daniel B. Sloan, Jennie Demarco, Gaius R. Shaver, Peter M. Ray, Zy Biesinger, F. Stuart Chapin

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

1. Plant communities in natural ecosystems are changing and species are being lost due to anthropogenic impacts including global warming and increasing nitrogen (N) deposition. We removed dominant species, combinations of species and entire functional types from Alaskan tussock tundra, in the presence and absence of fertilization, to examine the effects of non-random species loss on plant interactions and ecosystem functioning.

2. After 6 years, growth of remaining species had compensated for biomass loss due to removal in all treatments except the combined removal of moss, Betula nana and Ledum palustre (MBL), which removed the most biomass. Total vascular plant …


Forestiera Segregata (Jacq.) Krug & Urb., J. Richard Abbott, Kurt Neubig, Julie Neubig Apr 2008

Forestiera Segregata (Jacq.) Krug & Urb., J. Richard Abbott, Kurt Neubig, Julie Neubig

Specimens by Name

No abstract provided.


Cissus Trifoliata (L.) L., Richard J. Abott, Kurt Neubig Apr 2008

Cissus Trifoliata (L.) L., Richard J. Abott, Kurt Neubig

Specimens by Name

No abstract provided.


Sfa Gardens Newsletter, Spring 2008, Sfa Gardens, Stephen F. Austin State University Apr 2008

Sfa Gardens Newsletter, Spring 2008, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.


Mojave Applied Ecology Notes Spring 2008, Lesley Defalco, E. Cayenne Engel, Scott R. Abella, Jessica E. Spencer, Jill E. Craig Apr 2008

Mojave Applied Ecology Notes Spring 2008, Lesley Defalco, E. Cayenne Engel, Scott R. Abella, Jessica E. Spencer, Jill E. Craig

Mojave Applied Ecology Notes

Post-fire restoration, fire chronosequence study, Joint Fire Science update, Weed Sentry program and DNWR surveys


Edge Influence On Reproductive Success Of Symphoricarpos Orbiculatus, Breanne M. Nott Apr 2008

Edge Influence On Reproductive Success Of Symphoricarpos Orbiculatus, Breanne M. Nott

Student Honors Theses

With continued forest fragmentation, edge effects play an important role in shaping the structure and composition of plant communities. Some forest plant species exhibit increased abundance at forest edges, while other species have a negative edge response. Despite welldocumented edge effects, there are few studies that document the underlying effects on population dynamics of individual species that result in edge responses. Two mechanisms may generate differential distribution of a species across an edge. Edges may 1) alter population demographics by influencing the plant’s uptake and allocation of resources, or may 2) influence the spatial pattern of seed dispersal. Coral berry …


Checklist Of The Flora Of The Robert B. Gordon Natural Area, Gerard Hertel Mar 2008

Checklist Of The Flora Of The Robert B. Gordon Natural Area, Gerard Hertel

Gordon Natural Area Baseline Plant Survey Documents

No abstract provided.


Ficus Perforata L., Richard J. Abbott Mar 2008

Ficus Perforata L., Richard J. Abbott

Specimens by Name

No abstract provided.


Sideroxylon Celastrinum (Kunth) T.D. Penn., J. Richard Abbott Mar 2008

Sideroxylon Celastrinum (Kunth) T.D. Penn., J. Richard Abbott

Specimens by Name

No abstract provided.


Mimusops Caffra E.Mey. Ex A.Dc., J. Richard Abbott Mar 2008

Mimusops Caffra E.Mey. Ex A.Dc., J. Richard Abbott

Specimens by Name

No abstract provided.


Sideroxylon Inerme L., J. Richard Abbott Mar 2008

Sideroxylon Inerme L., J. Richard Abbott

Specimens by Name

No abstract provided.


Adding Value To Swine Manure Through Accurate Prediction Of Organic Nitrogen Availability, Charles S. Wortman, Charles Shapiro, Aaron Nygren Mar 2008

Adding Value To Swine Manure Through Accurate Prediction Of Organic Nitrogen Availability, Charles S. Wortman, Charles Shapiro, Aaron Nygren

Department of Agronomy and Horticulture: Faculty Publications

Animal manure contains organic and inorganic nitrogen. The inorganic N, which is mostly ammonium-N but nitrate-N can be significant in composted manure, is typically considered to be 100% plant available if there are not significant losses, especially due to volatilization of ammonia-N. The availability of organic N, which is mostly from undigested and partially digested plant material needs to be mineralized to become plant available, is less predictable. Field research was conducted in eastern Nebraska to improve the basis for estimating organic N availability from injected or incorporated swine manure and from surface applied composted and stockpiled FM. The factors …


Anisotropic Contraction In Forisomes: Simple Models Won't Fit, Winfried Peters, Michael Knoblauch, Stephen Warmann, William Pickard, Amy Shen Mar 2008

Anisotropic Contraction In Forisomes: Simple Models Won't Fit, Winfried Peters, Michael Knoblauch, Stephen Warmann, William Pickard, Amy Shen

Winfried S. Peters

Forisomes are ATP-independent, Ca2+-driven contractile protein bodies acting as reversible valves in the phloem of plants of the legume family. Forisome contraction is anisotropic, as shrinkage in length is associated with radial expansion and vice versa. To test the hypothesis that changes in length and width are causally related, we monitored Ca2+- and pH-dependent deformations in the exceptionally large forisomes of Canavalia gladiata by high-speed photography, and computed time-courses of derived geometric parameters (including volume and surface area). Soybean forisomes, which in the resting state resemble those of Canavalia geometrically but have less than 2% of the volume, were also …


Arkansas Turfgrass Report 2007, Michael Richardson, Douglas Karcher, Aaron Patton Mar 2008

Arkansas Turfgrass Report 2007, Michael Richardson, Douglas Karcher, Aaron Patton

Arkansas Agricultural Experiment Station Research Series

No abstract provided.


Review Of Oology And Ralph's Talking Eggs By Carrol L. Henderson, Kristin R. Johnson Mar 2008

Review Of Oology And Ralph's Talking Eggs By Carrol L. Henderson, Kristin R. Johnson

The Prairie Naturalist

Ralph Handsaker was an Iowan farmer whose "ravenous curiosity" (page 4) about the natural world inspired him to become an oologist, or egg collector. This book tells the story of Handsaker's eggs, contained in two large cabinets that remained hidden in the living room of his boarded-up house after his death in 1969, until they were rediscovered in 2003 and shown to the author, wildlife conservationist, and photographer, Carrol Henderson. Ralph's eggs can "talk" by virtue of Henderson's chronicle-using the eggs as guides-of not only Ralph's own passion for natural history and egg collecting, but also the history of conservation …