Botany Commons^™

Acer Griseum, Janice Coons, Nancy Coutant, Wesley Whiteside

Plants by Genus Species

Acer griseum was first brought to North America in 1907 by Ernest Henry Wilson in the form of two seedlings that were collected from Hubei Province in China. These two original plants remain at the Arnold Arboretum in Boston, Massachusetts, and were the source of the first North American horticultural distribution of the plant in 1927 (Del Tredici 2007). It is a handsome plant with very showy bark and is becoming more popular and easier to obtain than it has been in the past.

Carpinus Caroliniana, Janice Coons, Nancy Coutant, Wesley Whiteside

Plants by Genus Species

Carpinus caroliniana has a native range from Texas, north to Oklahoma, Missouri, Iowa, Minnesota, throughout the rest of the eastern United States, including Ontario and Quebec, occurring in understories along waterways (USDA 2011, Dirr 1998).

Elliottia Racemosa, Janice Coons, Nancy Coutant, Wesley Whiteside

Plants by Genus Species

Georgia plume has a limited range occurring on sandy soils in seventy discrete stands in Georgia along the Altamaha- Ogeechee- Savannah river system and one location in South Carolina (Tucker 2009).

Cedrus Libani, Janice Coons, Nancy Coutant, Wesley Whiteside

Plants by Genus Species

Cedar of Lebanon had an extensive ancient range through Lebanon, Syria, and Southern Turkey. It now is greatly reduced and fragmented through economic exploitation for 5000 years, agricultural clearing, and war. Populations are found in the Taurus Mountains and Black Sea region of Turkey, the eastern side of Jabal an-Nusayriya in Syria, and the western mountain range in Lebanon (Khuri 2000).

Koelreuteria Paniculata, Janice Coons, Nancy Coutant, Wesley Whiteside

Plants by Genus Species

Koelreuteria paniculata is native to temperate regions in China, Korea and Japan and is typically found in dry valleys (Dosmann 2006).

Verbena Hastata L., John E. Ebinger

Specimens by Name

No abstract provided.

Angiosperm Phylogeny: 17 Genes, 640 Taxa, Douglas Soltis, Steven Smith, Nico Cellinese, Kenneth Wurdack, David Tank, Samuel Brockington, Nancy Refulio-Rodriguez, Jay Walker, Michael Moore, Barbara Carlsward, Charles Bell, Maribeth Latvis, Sunny Crawley, Chelsea Black, Diaga Diouf, Zhenxiang Xi, Catherine Rushworth, Matthew Gitzendanner, Kenneth Sytsma, Yin-Long Qiu, Khidir Hilu, Charles Davis, Michael Sanderson, Reed Beaman, Richard Olmstead, Walter Judd, Michael Donoghue, Pamela Soltis

Faculty Research & Creative Activity

• Premise of the study : Recent analyses employing up to fi ve genes have provided numerous insights into angiosperm phylogeny, but many relationships have remained unresolved or poorly supported. In the hope of improving our understanding of angiosperm phylogeny, we expanded sampling of taxa and genes beyond previous analyses. • Methods : We conducted two primary analyses based on 640 species representing 330 families. The fi rst included 25 260 aligned base pairs (bp) from 17 genes (representing all three plant genomes, i.e., nucleus, plastid, and mitochondrion). The second included 19 846 aligned bp from 13 genes (representing only …

Extreme Environments Select For Reproductive Assurance: Evidence From Evening Primroses (Oenothera), Margaret E.K. Evans, David J. Hearn, Kathryn E. Theiss, Karen Cranston, Kent E. Holsinger, Michael J. Donoghue

EEB Articles

• Competing evolutionary forces shape plant breeding systems (e.g. inbreeding depression, reproductive assurance). Which of these forces prevails in a given population or species is predicted to depend upon such factors as life history, eco- logical conditions, and geographical context. Here, we examined two such predictions: that self-compatibility should be associated with the annual life history or extreme climatic conditions.

• We analyzed data from a clade of plants remarkable for variation in breeding system, life history and climatic conditions (Oenothera, sections Anogra and Kleinia, Onagraceae). We used a phylogenetic comparative approach and Bayesian or hybrid Bayesian tests to account …

Mojave Applied Ecology Notes Winter 2011, Scott R. Abella, Alice C. Newton, Kenneth Chittick, Pam Sinanian

Mojave Applied Ecology Notes

Lake Mead’s collaborative applied science research program; “annoying the elephant” - ruminations on active management by Alice Newton, Lake Mead NRA vegetation manager; 2012 NWRA Lake Mead symposium sneak peak; assessing forest change using dendrochronology in the Spring Mountains.

Switchgrass, Kenneth P. Vogel, Gautam Sarath, Aaron J. Saathoff, Robert B. Mitchell

Department of Agronomy and Horticulture: Faculty Publications

17.1 Introduction

Switchgrass (Panicum virgatum L.) is a warm-season perennial grass that is native to North America that is being developed into a biomass energy crop. It has been used in pastures and for conservation purposes in the Great Plains and the Midwest, USA, for over 70 years.1 The research supporting its use as a pasture and conservation species was largely conducted by US Department of Agriculture (USDA) research programs, most notably the Agricultural Research Service (ARS) project located at the University of Nebraska-Lincoln and USDA Plant Materials Centers that are located throughout the United States. In this report, …

Identification Of A Second Asian Soybean Rust Resistance Gene In Hyuuga Soybean, Mandy D. Kendrick, Donna K. Harris, Bo-Keun Ha, D. L. Hyten, P. B. Cregan, Reid D. Frederick, H. Roger Boerma, Kerry F. Pedley

Department of Agronomy and Horticulture: Faculty Publications

Asian soybean rust (ASR) is an economically significant disease caused by the fungus Phakopsora pachyrhizi. The soybean genes Rpp3 and Rpp?(Hyuuga) confer resistance to specific isolates of the pathogen. Both genes map to chromosome 6 (Gm06) (linkage group [LG] C2). We recently identified 12 additional soybean accessions that harbor ASR resistance mapping to Gm06, within 5 centimorgans of Rpp3 and Rpp?(Hyuuga). To further characterize genotypes with resistance on Gm06, we used a set of eight P. pachyrhizi isolates collected from geographically diverse areas to inoculate plants and evaluate them for differential phenotypic responses. …

Cytokinin-Mediated Source ⁄Sink Modifications Improve Drought Tolerance And Increase Grain Yield In Rice Under Water-Stress, Zvi Peleg, Maria Reguera, Ellen Tumimbang, Harkamal Walia, Eduardo Blumwald

Department of Agronomy and Horticulture: Faculty Publications

Drought is the major environmental factor limiting crop productivity worldwide. We hypothesized that it is possible to enhance drought tolerance by delaying stress-induced senescence through the stress-induced synthesis of cytokinins in crop-plants. We generated transgenic rice (Oryza sativa) plants expressing an isopentenyltransferase (IPT) gene driven by PSARK, a stress- and maturation-induced promoter. Plants were tested for drought tolerance at two yield-sensitive developmental stages: pre- and post-anthesis. Under both treatments, the transgenic rice plants exhibited delayed response to stress with significantly higher grain yield (GY) when compared to wild-type plants. Gene expression analysis revealed a significant shift in expression of hormone-associated …

Auxin Regulation Of Arabidopsis Flower Development Involves Members Of The Aintegumenta-Like/Plethora (Ail/Plt) Family, Beth A. Krizek

Faculty Publications

Auxin is an important regulator of many aspects of plant growth and development. During reproductive development, auxin specifies the site of flower initiation and subsequently regulates organ growth and patterning as well as later events that determine reproductive success. Underlying auxin action in plant tissues is its uneven distribution, resulting in groups of cells with high auxin levels (auxin maxima) or graded distributions of the hormone (auxin gradients). Dynamic auxin distribution within the periphery of the inflorescence meristems specifies the site of floral meristem initiation, while auxin maxima present at the tips of developing floral organ primordia probably mediate organ …

Deer Browse Monitoring Of The Lupine Population At John Merle Coulter Prairie And The Trillium Population At Hildebrand Lake, Jana C. Cram, Heather Dulaney

Symposium on Research and Creative Expression (SORCE)

A facet of ecological restoration practices in northwest Indiana involves monitoring and supporting the growth of various plants native to the region, including wild lupine (Lupinus perennis) and large-flowering trillium (Trillium grandiflorum). White-tailed deer are a common threat to these species because they eat, or browse, the flowers from these plants. This project investigated the amount of wild lupine and large-flowering trillium browsed by white-tailed deer at Coulter Prairie and Hildebrand Lake, respectively, over a four-year period. Plant counts are taken from permanent transect lines of 30 and 50 meters in length and measured in one …

Improving Ecological Monitoring Of Restoration Sites In Northwest Indiana Through A Glisten-Nirmi Partnership., Danyi Harper, Don Meola

Symposium on Research and Creative Expression (SORCE)

Northwest Indiana is an area of active ecological restoration with 169 documented restoration projects. However, the ability to assess the success of restoration projects is incomplete because monitoring of the progress of these restorations does not exist. NIRMI was created in 2010 to establish a system of evaluating and quantifying plant species in local habitat restoration projects throughout Northwest Indiana. NIRMI uses a standardized approach to collect data that is placed within an open-access database for use by other researchers, restoration groups, and individuals in evaluation of restoration efforts. Data collection uses the CVS-EEP protocol for recording vegetation, a standard …

Fruit And Seed Morphology Of The Fumaria L. Species (Papaveraceae) Of Iran, Fatemeh Ebrahimzadeh Araii, Maryam Keshavarzi, Masoud Sheidaii, Parinaz Ghadam

Turkish Journal of Botany

The macro and micro fruit and seed morphology and surface ornamentations of 21 populations of 6 Fumaria L. species were investigated using stereomicroscope and scanning electron microscopy. These data are shown to support data from the general morphology. The results indicate that the fruit and seed characters of the genus Fumaria are valuable for taxonomic applications and are useful for classification. F. officinalis show a different shape in their fruit. The close relationships are observed for F. parviflora and F. vaillantii. F. indica, as a hybrid between F. asepala and F. parviflora, shows intermediate micro-morphological features.

Macrofungal Diversity Associated With The Scale-Leaf Juniper Trees, Juniperus Excelsa And J. Foetidissima, Distributed In Turkey, Hasan Hüseyi̇n Doğan, Mi̇tko Karadelev, Mustafa Işiloğlu

Turkish Journal of Botany

In this article, an attempt has been made to establish the qualitative composition of macromycetes in the communities of scale-leaf juniper, Juniperus excelsa M.Bieb. and J. foetidissima Willd., distributed in Turkey. A total of 127 species of macrofungi were registered, 2 belonging to Ascomycota and 125 to Basidiomycota. Of those, 69 species were collected in Juniperus excelsa stands, 23 in J. foetidissima stands, and 35 species in both juniper stands. The ecologic status for the fungal species is as follows: 30 lignicolous and 39 terricolous in J. excelsa stands, 19 lignicolous and 4 terricolous in J. foetidissima, and 31 lignicolous …

Ultrastructural Localisation Of Chromium In Ocimum Basilicum, Roya Bishehkolaei, Hamid Fahimi, Sara Saadatmand, Taher Nejadsattari, Mehrdad Lahouti, Forouzan Tabatabaei Yazdi

Turkish Journal of Botany

Ocimum basilicum L. seedlings were exposed to different concentrations of Cr (0-8 mg L^{-1} of Cr^{3+}) to evaluate the cellular localisation of chromium, plant accumulating capacity, and potential cellular defence mechanisms against Cr stress. Dried plant tissues (roots and shoots) were exposed to X-ray microanalysis for element determination (including Cr, Cu, Zn, Co, Ni, and Mo). Results showed that the highest amount of Cr had accumulated in the roots of the plants treated with 8 mg L^{-1} of Cr^{3+}, while less Cr was transported to the shoots. TEM micrographs of Ocimum basilicum root cortex cells exposed to 4, 6, and …

Macrofungi Of Kemaliye District (Erzincan), Hakan Alli

Turkish Journal of Botany

The material of this study comprises macrofungi specimens collected from different localities in Kemaliye district (Erzincan, Turkey) in 2006 and 2007. As a result of field and laboratory studies, 106 taxa under 35 families belonging to the classes Ascomycetes and Basidiomycetes are described: 3 of them, namely Psathyrella panaeoloides (Maire) Arnolds, Galerina stylifera var. stylifera (G.F.Atk.) A.H.Sm. & Singer, and Inocybe amblyspora Kühner, are new records for Turkey.

Strategies For Conserving Forest Genetic Resources In The Face Of Climate Change, John Bradley St.Clair, Glenn Thomas Howe

Turkish Journal of Botany

Conservation of genetic diversity is important for continued evolution of populations to new environments, as well as continued availability of traits of interest in genetic improvement programs. Rapidly changing climates present new threats to the conservation of forest genetic resources. We can no longer assume that in situ reserves will continue to preserve existing genetic diversity. Management of reserves should become more active. In some reserves, existing genetic diversity should be preserved by creating stands that are more resistant to threats using silvicultural treatments such as thinning and prescribed burning. In other reserves, natural selection and adaptation to changed environments …