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Root Architecture Adaptation Of Pistacia Atlantica Subsp. Atlantica According To An Increasing Climatic And Edaphic Gradient: Case Of A North-South Transect In Algeria, Abdelkrim Limane, Noria Smail-Saadoun, Amel Belkebir-Boukais, Karima Kissoum-Hamdini Jan 2014

Root Architecture Adaptation Of Pistacia Atlantica Subsp. Atlantica According To An Increasing Climatic And Edaphic Gradient: Case Of A North-South Transect In Algeria, Abdelkrim Limane, Noria Smail-Saadoun, Amel Belkebir-Boukais, Karima Kissoum-Hamdini

Turkish Journal of Botany

Despite xeric conditions, Pistacia atlantica Desf. subsp. atlantica (Atlas pistachio) succeeds in developing impressive dendrometric dimensions (25-m high, 2-m trunk diameter). It is among the rare spontaneous phanerophytes of the North African steppe. With access to water being the primary condition for survival, we focused on its root system. According to a gradient of increasing climatic and edaphic aridity in Algeria, we recorded different root architectures set up by this tree. We sampled its underlying soil and determined its main physico-chemical characteristics. Root architecture is mainly of the superficial type with more than 60% of roots located in the top …

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Spatiotemporal Distribution In Phytoplankton Community With Distinct Salinity Regimes Along The Mandovi Estuary, Goa, India, Suraksha Mohan Pednekar, Vijaya Kerkar, Shivprasad Ganesh Prabhu Matondkar Jan 2014

Spatiotemporal Distribution In Phytoplankton Community With Distinct Salinity Regimes Along The Mandovi Estuary, Goa, India, Suraksha Mohan Pednekar, Vijaya Kerkar, Shivprasad Ganesh Prabhu Matondkar

Turkish Journal of Botany

Seasonal variations in the composition and abundance of phytoplankton were investigated fortnightly at 3 different regions along the Mandovi estuary from June 2007 to May 2008 in relation to salinity and nutrients. A total of 209 species belonging to 7 divisions were identified during the study period. The highest phytoplankton cell density (5.17 × 10^4 cells L^{-1}) and biomass (7.68 mg m^{-3} chlorophyll a) were observed in the upper sections during the nonmonsoon period, while the highest diversity (3.46) was observed in the upper section during the monsoon period. Bacillariophyta was the dominant phytoplankton group at 71% of the total …

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Herniaria Caucasica (Caryophyllaceae), Rumex Cyprius (Polygonaceae), And Potentilla Multifida (Rosaceae); 3 New Records For Turkey, Murat Koç, Ergi̇n Hamzaoğlu Jan 2014

Herniaria Caucasica (Caryophyllaceae), Rumex Cyprius (Polygonaceae), And Potentilla Multifida (Rosaceae); 3 New Records For Turkey, Murat Koç, Ergi̇n Hamzaoğlu

Turkish Journal of Botany

Herniaria caucasica Rupr., Rumex cyprius Murb., and Potentilla multifida L. are given as new records for Turkey. The specimens were collected from Van, Mersin, and Kayseri provinces. These new records were compared with similar species in Turkey. Descriptions, distributions, and figures of these new records are given.

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Flower Closure In The Field Bindweed (Convolvulus Arvensis): A Field Test Of The Pollination Hypothesis, Pavol Prokop, Dominika Neupauerova Jan 2014

Flower Closure In The Field Bindweed (Convolvulus Arvensis): A Field Test Of The Pollination Hypothesis, Pavol Prokop, Dominika Neupauerova

Turkish Journal of Botany

Although the behavioral plasticity of flower traits has received considerable attention, its adaptive value is not thoroughly understood. We experimentally examined flower opening/closure in field bindweed (Convolvulus arvensis), a species with short flower persistence (1 day) in which adaptive responses to pollination were not previously expected. In line with the pollination hypothesis we suggested that flower exposure in this species should respond to pollination. More specifically, we predicted that flower closure in the pollinated flowers would be quicker than that in unpollinated flowers. As predicted, the unpollinated flowers were open for a longer time than the pollinated flowers. There was …

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Ellenberg’S Indicator Values For Soil Nitrogen Concentration And Ph In Selected Swamp Forests In The Central Black Sea Region Of Turkey, Burak Sürmen, Hamdi̇ Güray Kutbay, Dudu Duygu Kiliç, Rena Huseyinova, Mahmut Kilinç Jan 2014

Ellenberg’S Indicator Values For Soil Nitrogen Concentration And Ph In Selected Swamp Forests In The Central Black Sea Region Of Turkey, Burak Sürmen, Hamdi̇ Güray Kutbay, Dudu Duygu Kiliç, Rena Huseyinova, Mahmut Kilinç

Turkish Journal of Botany

Ellenberg developed a system that assigns indicator scores for habitat characteristics of individual plant species. Swamp forests are highly diverse ecological communities and include different plant species, all of which have different ecological requirements. Ellenberg's indicator values (EIVs) were calculated for soil pH and nitrogen (N) concentration in some swamp forest species in the Central Black Sea region of Turkey. In this study, the EIVs for soil pH were usually similar in the swamp forest species studied, while some differences were found with respect to EIVs for soil nitrogen concentration. Tolerance values (TVs) of all of the studied species were …

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Phytochemical Importance Of Medicinal Plants As Potential Sources Of Anticancer Agents, Himani Raina, Garima Soni, Nupur Jauhari, Neelam Sharma, Navneeta Bharadvaja Jan 2014

Phytochemical Importance Of Medicinal Plants As Potential Sources Of Anticancer Agents, Himani Raina, Garima Soni, Nupur Jauhari, Neelam Sharma, Navneeta Bharadvaja

Turkish Journal of Botany

The diverse and magnificent plant kingdom of the world is widely known for its medicinal importance. The potential medicinal properties of plant species have contributed significantly in the development of various herbal therapies for a number of diseases across the globe. The benefits of herbal medicine over allopathic medicine have helped medicinal plants to regain their importance in the field of health and medicine. Cancer is one of the major health problems that have widely affected the world's population. There is a great need to combat this disease with better and more effective medication as compared to existing therapies. A …

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Subcellular Localization And Developmental Regulation Of Cytosolic, Soluble Pyrophosphatase Isoforms In Arabidopsis Thaliana, Zahi̇de Nesli̇han Öztürk, Steffen Greiner, Thomas Rausch Jan 2014

Subcellular Localization And Developmental Regulation Of Cytosolic, Soluble Pyrophosphatase Isoforms In Arabidopsis Thaliana, Zahi̇de Nesli̇han Öztürk, Steffen Greiner, Thomas Rausch

Turkish Journal of Botany

Pyrophosphate (PP_{I}) is the by-product of several reversible key reactions of primary metabolism. Thus, generated PP_i should be removed by hydrolysis via pyrophosphatases to prevent accumulation and to drive anabolism. In plastids, a plastidic, soluble pyrophosphatase splits PP_i released by ADPG pyrophosphorylase. The cytosolic PP_i pool is believed to be hydrolyzed by tonoplast- and/or Golgi-integral H^{+}-translocating pyrophosphatases. The Arabidopsis thaliana (L.) Heynh. genome encodes 6 soluble pyrophosphatase isoforms (PPas), 1 of which was shown to be localized in plastids. The remaining 5 of those PPas (PPas 1-5) are more similar to each other with highly conserved protein sequences. They all …

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Assessment Of Genetic Diversity And Phylogenetic Relationships Of Endangered Endemic Plant Barbarea Integrifolia Dc. (Brassicaceae) In Turkey, Ertuğrul Fi̇li̇z, Etem Osma, Ali̇ Kandemi̇r, Hüseyi̇n Tombuloğlu, Guzi̇n Tombuloglu, Seda Bi̇rbi̇lener, Mehtap Aydin Jan 2014

Assessment Of Genetic Diversity And Phylogenetic Relationships Of Endangered Endemic Plant Barbarea Integrifolia Dc. (Brassicaceae) In Turkey, Ertuğrul Fi̇li̇z, Etem Osma, Ali̇ Kandemi̇r, Hüseyi̇n Tombuloğlu, Guzi̇n Tombuloglu, Seda Bi̇rbi̇lener, Mehtap Aydin

Turkish Journal of Botany

Barbarea integrifolia DC. (Brassicaceae) is an endangered and endemic species located in Erzincan and Gümüşhane provinces of Turkey. In total, 27 individuals from 2 natural populations were assessed using the random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) method coupled with sequence analysis of the internal transcribed spacer (ITS1) rDNA region. Genetic accuracy of RAPD-PCR was tested with 25 RAPD primers, and it resulted in 115 clear and reproducible DNA fragments from 13 RAPD primers. Among these, 76 (66.1%) fragments were found to be polymorphic. According to the ITS1 analysis of B. integrifolia populations, the plants exhibited a relatively poor …

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How Environmental Conditions Affect Cattle Diets, Kalynne R. Ewerks Jan 2014

How Environmental Conditions Affect Cattle Diets, Kalynne R. Ewerks

Natural Sciences Student Research Presentations

This poster presented at the Natural Sciences Poster Session at Parkland College, outlines a study that shows that protein content in animal feed is decreased by increased temperatures and briefly identifies measures that might be taken to counteract an impact on food supply.

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Response Of Fusarium Thapsinum To Sorghum Brown Midrib Lines And To Phenolic Metabolites, Deanna L. Funnell-Harris, Scott E. Sattler, Jeffrey F. Pedersen Jan 2014

Response Of Fusarium Thapsinum To Sorghum Brown Midrib Lines And To Phenolic Metabolites, Deanna L. Funnell-Harris, Scott E. Sattler, Jeffrey F. Pedersen

Department of Plant Pathology: Faculty Publications

Sorghum lines were bred for reduced lignin for cellulosic bioenergy uses, through the incorporation of brown midrib (bmr)6 or -12 into two backgrounds (RTx430 and Wheatland) as either single or doublemutant lines. When these lines were assessed for resistance to Fusarium thapsinum stalk rot, a cause of lodging, they were as resistant to F. thapsinum as the near-isogenic wild type. Peduncles of newly identified bmr lines from an ethyl-methanesulfonate-mutagenized population, inoculated with F. thapsinum, were as resistant as the wild-type line, BTx623. One bmr line (1107) had significantly smaller mean lesion lengths than BTx623, suggesting that a mutation …

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Assessing Grazing Impacts On A Tropical Dry Forest System In Madagascar Through Vegetation, Satellite Image, Lemur Occupancy, And Acoustic Analysis, Lyndsay Lee Rankin Jan 2014

Assessing Grazing Impacts On A Tropical Dry Forest System In Madagascar Through Vegetation, Satellite Image, Lemur Occupancy, And Acoustic Analysis, Lyndsay Lee Rankin

Theses, Dissertations and Capstones

The ability to assess the quality or ecological value of a landscape is a useful tool in effective conservation and natural resource management. Ecosystem biodiversity and functionality are reduced when human activities cause habitat alteration and/or fragmentation. Compromised habitats are unlikely to support naturally occurring communities or healthy ecosystem functions. Conservation scientists have historically concentrated their efforts on large, intact habitats with little human disturbance; the conservation value of small and/or disturbed areas has been comparatively overlooked. One limitation may be a lack of tools to identify disturbed areas with conservation value. Techniques that allow researchers to assess the habitat …

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Storage Of Mung Bean (Vigna Radiata [L.] Wilczek) And Pigeonpea Grains (Cajanus Cajan [L.] Millsp) In Hermetic Triple-Layer Bags Stops Losses Caused By Callosobruchus Maculatus (F.) (Coleoptera: Bruchidae), C. M. Mutungi, H. Affognon, A. W. Njoroge, D. Baributsa, L. L. Murdock Jan 2014

Storage Of Mung Bean (Vigna Radiata [L.] Wilczek) And Pigeonpea Grains (Cajanus Cajan [L.] Millsp) In Hermetic Triple-Layer Bags Stops Losses Caused By Callosobruchus Maculatus (F.) (Coleoptera: Bruchidae), C. M. Mutungi, H. Affognon, A. W. Njoroge, D. Baributsa, L. L. Murdock

All Peer-Reviewed Publications

Dry mung bean and pigeonpea grains that had sustained some insect damage but fumigated before the start of the experiment were stored in triple-layer hermetic bags (Purdue Improved Crop Storage (PICS™ bags) or woven polypropylene (PP) bags for 6 months. Some of the bags were artificially infested with cowpea bruchid Callosobruchus maculatus (F.) (PICS1, PP1) while others were not (PICS0, PP0). In an additional trial, PP bags containing the grains were treated with Actellic Super® dust before being artificially infested (PP1Ac). Moisture content, live adult C.maculatus count, grain damage, weight loss, and seed germination were determined on a monthly basis. …

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Contents, Discovery Editors Jan 2014

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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The Influences Of Poultry Litter Biochar And Water Source On Radish Growth And Nutrition, Julia Allen, David E. Longer, Edward E. Gbur, Lichen Hao Jan 2014

The Influences Of Poultry Litter Biochar And Water Source On Radish Growth And Nutrition, Julia Allen, David E. Longer, Edward E. Gbur, Lichen Hao

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Many row-crop fields today have declined in soil fertility due to poor management practices and overuse of pesticides. Under these conditions, plant nutrient uptake can be sub-optimal. There are several soil amendments that can be used to improve soil quality and plant growth. This study focused on the addition of biochar to the soil and the use of structured water to enhance plant growth. Biochar is produced by pyrolysis of organic feedstocks. Previous studies which focused on biochar have shown an increase in plant yield, nutrient availability in the soil, and soil water holding capacity. Structured water is the liquid …

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Reducing Water Extractable Phosphorus In Poultry Litter Using Chitosan Treatment, Zachary Simpson, Brina Smith, David A. Zaharoff, Brian E. Haggard Jan 2014

Reducing Water Extractable Phosphorus In Poultry Litter Using Chitosan Treatment, Zachary Simpson, Brina Smith, David A. Zaharoff, Brian E. Haggard

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Phosphorus (P) is an important factor in the eutrophication of freshwater, and watershed sources include effluent discharges and the landscape. Poultry litter applied to the landscape can be a potential source of P, which is dependent on rainfall, runoff and dissolution. Chitosan, the deacetylated form of the biopolymer chitin, has been shown to have an effect on reducing water extractable phosphorus (WEP) in poultry litter when applied as a powder. The intent of this study was to measure the effect that poultry litter treatment (PLT), acetic acid and incubation time have on chitosan’s ability to reduce WEP in poultry litter. …

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Effects Of Asphondylia Borrichiae, Simulated Herbivory, And Nutritional Status On Survival, Flowering, And Seed Viability In Sea Oxeye Daisy (Borrichia Frutescens), Lisa S. Rowan Jan 2014

Effects Of Asphondylia Borrichiae, Simulated Herbivory, And Nutritional Status On Survival, Flowering, And Seed Viability In Sea Oxeye Daisy (Borrichia Frutescens), Lisa S. Rowan

UNF Graduate Theses and Dissertations

Although herbivory and other types of plant damage typically are viewed as detrimental to plant survival and performance, vigorous regrowth, greater seed set, and fitness benefits may be possible when damage to the apical meristem, or actively growing stem terminal, is involved. Such damage releases apical dominance, or the hormonal suppression of lateral buds, activates dormant lateral buds, and enables lateral shoots to grow. Since in plants with terminal flowers, each stem may bear a flower, removal of the apical meristem may result in stem bifurcation and ultimately increase the number of flowers and seeds, thereby increasing potential fitness. In …

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College Students’ Perceptions Regarding Sensory Aspects Of Conventionally Produced And Unconventionally Produced Foods: Implications For Marketing To The Millennial Generation, Christina Crowder, Catherine W. Shoulders, K. Jill Rucker Jan 2014

College Students’ Perceptions Regarding Sensory Aspects Of Conventionally Produced And Unconventionally Produced Foods: Implications For Marketing To The Millennial Generation, Christina Crowder, Catherine W. Shoulders, K. Jill Rucker

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Consumers vote every day on which products line the shelves of grocery stores, co-ops, and niche markets. Public unrest with regard to the environmental, animal welfare, food purity, and human health impacts of agricultural production practices have led to the rise of unconventionally produced (UP) food products. While the sales of UP foods is increasing, studies regarding the qualities of such products that impact consumer purchases have yielded inconsistent results. This study examined students’ perceptions of sensory aspects of conventionally produced (CP) and UP foods to better understand how sensory aspects impact decisions to purchase. Students reported consistent perceptions regarding …

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Expression Of Sod Gene And Evaluating Its Role In Stress Tolerance In Nacl And Peg Stressed Lycopersicum Esculentum, Semra Aydin, İlker Büyük, Emi̇ne Sümer Aras Jan 2014

Expression Of Sod Gene And Evaluating Its Role In Stress Tolerance In Nacl And Peg Stressed Lycopersicum Esculentum, Semra Aydin, İlker Büyük, Emi̇ne Sümer Aras

Turkish Journal of Botany

Antioxidant enzyme mechanisms are important for protecting crop productivity against stressful environmental conditions. Therefore, the current study was designed to evaluate lipid peroxidation (via malondialdehyde (MDA)) levels, superoxide dismutase (SOD) gene expression profiles, and SOD enzyme activities in tomato (Lycopersicum esculentum L.) plants subjected to different concentrations (100 and 150 mM) and time periods of NaCl and polyethylene glycol (PEG) stress (3 h, 6 h, 9 h, 12 h, and 48 h). Enhancement of lipid peroxidation in plants may be attributed to the increased accumulation of reactive oxygen species (ROS). Results indicated the antioxidant responses of tomato plants could be …

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Contrasting Inbreeding Depression In Early And Late Stages Of The Life Cycle Of A Mediterranean Shrub, Anagyris Foetida (Leguminosae), Francisco Javier Valtueña, Josefa López, Ana Ortega-Olivencia, Tomás Rodriguez-Riaño, Miguel González Jan 2014

Contrasting Inbreeding Depression In Early And Late Stages Of The Life Cycle Of A Mediterranean Shrub, Anagyris Foetida (Leguminosae), Francisco Javier Valtueña, Josefa López, Ana Ortega-Olivencia, Tomás Rodriguez-Riaño, Miguel González

Turkish Journal of Botany

Anagyris foetida L. has a Mediterranean distribution, but its populations are highly fragmented. This, together with its mixed mating system, puts it at clear risk of being strongly affected by inbreeding depression. To determine the effect of inbreeding depression in this species, hand pollinations were performed during the 2003/04 season in 2 populations from SW Spain to generate selfed and outcrossed seeds. These seeds were divided in 2 sample lots and seedlings were obtained in different years. During the first year of life the first lot showed no differences in vegetative parameters between the 2 populations, so that no differentiation …

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Different Meal, Same Flavor: Cospeciation And Host Switching Of Haemosporidian Parasites In Some Non-Passerine Birds, Diego Santiago-Alarcon, Adriana Rodríguez-Ferraro, Patricia Parker, Robert Ricklefs Jan 2014

Different Meal, Same Flavor: Cospeciation And Host Switching Of Haemosporidian Parasites In Some Non-Passerine Birds, Diego Santiago-Alarcon, Adriana Rodríguez-Ferraro, Patricia Parker, Robert Ricklefs

Biology Department Faculty Works

BackgroundPrevious studies have shown that haemosporidian parasites (Haemoproteus(Parahaemoproteus) and Plasmodium) infecting passerine birds have an evolutionary history of host switching with little cospeciation, in particular at low taxonomic levels (e.g., below the family level), which is suggested as the main speciation mechanism of this group of parasites. Recent studies have characterized diverse clades of haemosporidian parasites (H. (Haemoproteus) and H. (Parahaemoproteus)) infecting non-passerine birds (e.g., Columbiformes, Pelecaniiformes). Here, we explore the cospeciation history of H. (Haemoproteus) and H. (Parahaemoproteus) parasites with their non-passerine hosts.MethodsWe sequenced the mtDNA cyt b gene of both haemosporidian parasites and their avian non-passerine hosts. We …

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Effectiveness Of A Farm Field Trip, Bonnie S. Sigmon Jan 2014

Effectiveness Of A Farm Field Trip, Bonnie S. Sigmon

Theses and Dissertations--Community & Leadership Development

The annual Sigmon Farm Tour was started in 1992 as an agricultural education program where students could experience being on a farm with the goal of increasing the agricultural literacy levels of the participants. Every year the entire 4th grade student population of Rockcastle County spends the day touring the farm and participating in experiential mini lessons given by the cooperating farm service and health agencies. The program has continued for 20+ years without an evaluation as to whether it is achieving its objectives. This evaluation will also exhibit the programs strengths and weakness so it can continue to improve. …

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Using Seed Recovery Methods To Determine Causes Of Failed Germination In Native Prairie Species, Paige Leytem Jan 2014

Using Seed Recovery Methods To Determine Causes Of Failed Germination In Native Prairie Species, Paige Leytem

Honors Program Theses

Prairie restorations are expensive and emergence rates as low as ten percent are often observed. This could be because seeds are exposed to dangers from microbial and fungal attack, as well as predation from granivores after planting. Our experiment aimed to determine the post-dispersal seed fates of four native prairie species after they had been planted in the soil and covered with an exclosure to limit vertebrate predation. It was performed in a prairie restoration on the University of Northern Iowa Campus in Cedar Falls, Iowa. I coated five sets of 100 seeds of each species (Elymus canadensis, Oligoneuron rigidum, …

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Grassland Sustainability In Kentucky: Case Studies Quantifying The Effects Of Climate Change On Slug Herbivory In Pastures And Different Home Lawn Systems On Turf Greenhouse Gas Emissions, Daniel Adam Weber Jan 2014

Grassland Sustainability In Kentucky: Case Studies Quantifying The Effects Of Climate Change On Slug Herbivory In Pastures And Different Home Lawn Systems On Turf Greenhouse Gas Emissions, Daniel Adam Weber

Theses and Dissertations--Plant and Soil Sciences

Grasslands comprise the greatest biome by land area, are sensitive to environmental factors affected by climate change, and can impact future climate change through their ability to store and release greenhouse gasses (GHGs). I performed two studies: 1) evaluated the effects of increased temperature and precipitation on slug herbivory/abundance and pasture forage production; 2) quantified different homeowner lawn system effects on soil-to-atmosphere GHG emissions. Climate change will likely affect pasture forage production, with implications for slug herbivory and abundance. I found little evidence that slugs have or will have significant effects on pasture production or plant community. Warming altered the …

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Understanding The Role Of Membrane Localized Ugt80b1 Encoding For Udp-Glucose: Sterol Glucosyltransferase In Plant Development, Meera Nair Jan 2014

Understanding The Role Of Membrane Localized Ugt80b1 Encoding For Udp-Glucose: Sterol Glucosyltransferase In Plant Development, Meera Nair

Theses and Dissertations--Plant and Soil Sciences

Sterols have been identified as major components of membrane lipids that are part of specialized membrane domains necessary for organizing events such as polar protein targeting and signal transduction in plants, fungi and animals. However a common modification of sterols is the addition of sugar moieties via glycosylation abundantly found in plants. An exact physiological role for such diversification of sterols in plants is still unknown. Using reverse genetics and transcriptomics we show that UDP-glucose: sterol glucosyltransferase encoded by UGT80B1 is necessary for correct epidermal patterning in Arabidopsis root. Patterning of hair cells (trichoblasts) and non-hair cells (atrichoblasts) in the …

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Is The Foliar Yellow Vein Of Some Ornamental Plants Caused By Plant Viruses?, Favio Eduardo Herrera Jan 2014

Is The Foliar Yellow Vein Of Some Ornamental Plants Caused By Plant Viruses?, Favio Eduardo Herrera

LSU Master's Theses

Plant viruses have shown to be the cause of the yellow vein symptoms on the foliage of several ornamental plants. In this study five ornamental plants: oxalis (Oxalis debilis var. corymbosa) cv. Golden Veined Oxalis, geranium (Pelargonium peltatum) cv. Crocodile, pseuderanthemum (Pseuderanthemum carruthersii) cv. Golden Net Bush (narrow leaf and broad leaf variants), honeysuckle (Lonicera japonica) cv. Yellow Net Honeysuckle and coleus (Solenostemon scutellarioides) cv. Electric Lime, showing foliar yellow vein were used. Graft transmissions indicated that, except for coleus, the foliar yellow vein of all other plants was caused by infectious agents, likely plant viruses. With the exception of …

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Morphological Analysis And Soil Characterization Of Balsamroot (Balsamorhiza) Natural Hybrid Zones In Central Washington, Mariah H. Helvy Jan 2014

Morphological Analysis And Soil Characterization Of Balsamroot (Balsamorhiza) Natural Hybrid Zones In Central Washington, Mariah H. Helvy

All Master's Theses

It has been hypothesized that species of Balsamroot, genus Balsamorhiza, hybridize readily in nature, but no study has quantitatively described the morphological types found in or the environmental characteristics of hybrid zones in this genus. Here, we investigate the relationship between morphological types and soil characteristics in four Balsamorhiza sagittata-hookeri putative hybrid zones in Grant County, Washington State, USA. Clustering analysis of morphological traits suggested that plants could be classified into two groups, a B. sagittata-like group and a B. hookeri-like group, although there was variation within each group. Over all sites, B. sagittata-like plants were …

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Molecular Phylogeny Of Chlorella-Related Chlorophytes (Chlorophyta) From Anatolian Freshwaters Of Turkey, Özgür Baytut, Cem Tolga Gürkanli, Ari̇f Gönülol, İbrahi̇m Özkoç Jan 2014

Molecular Phylogeny Of Chlorella-Related Chlorophytes (Chlorophyta) From Anatolian Freshwaters Of Turkey, Özgür Baytut, Cem Tolga Gürkanli, Ari̇f Gönülol, İbrahi̇m Özkoç

Turkish Journal of Botany

This study aimed to investigate molecular taxonomic diversity of unicellular chlorophyte strains in the northern Anatolian freshwater habitats of Turkey. Five strains were isolated from various habitats i.e. salty lagoons, shallow lakes, or slow-flowing creeks. The habitats chosen were Cernek lagoon (Kızılırmak Delta, Samsun), Kara lake (Çubuk, Ankara), Sarıkum lagoon (Sinop), and Sırakaraağaçlar creek (Sinop). Although the observations based on light microscopy showed no significant differences in cell morphologies, phylogenetic analysis based on nucleotide sequences of nuclear 18S rDNA and chloroplast 16S rDNA regions suggested that our isolates are related to 3 chlorophyte species: Chlorella vulgaris Beijerinck (S705, S706, and …

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Development Of A Loop-Mediated Isothermal Amplification For The Detection Of Burkholderia Glumae, Maria Alejandra Caldera Jan 2014

Development Of A Loop-Mediated Isothermal Amplification For The Detection Of Burkholderia Glumae, Maria Alejandra Caldera

LSU Master's Theses

Bacterial panicle blight is among the three most limiting diseases of rice production in the United States. Yield loss up to 40% has been reported from rice fields severely infested with bacterial panicle blight. The disease is caused by Burkholderia glumae and B. gladioli. Although, both species produce similar symptoms and are closely related, but B. glumae strains are more aggressive and cause more severe symptoms on rice. Bacterial panicle bight is difficult to manage in the absence of effective chemical control measures. Rapid and early disease detection is needed to avoid severe yield losses. Several techniques have been developed …

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Getting Plant Conservation Right (Or Not): The Case Of The United States, Kayri Havens, Andrea T. Kramer, Edward O. Guerrant Jr. Jan 2014

Getting Plant Conservation Right (Or Not): The Case Of The United States, Kayri Havens, Andrea T. Kramer, Edward O. Guerrant Jr.

Environmental Science and Management Faculty Publications and Presentations

Effective plant conservation includes addressing basic needs such as information about species distribution and rarity; research, management, education, and training capacity to mitigate threats facing threatened species; policy and funding to support continued capacity and conservation; and, ultimately, a public that understands and supports the importance of plants and the need for their conservation. Coordination of plant conservation efforts is also needed to ensure that resources and expertise are used in a strategic, efficient, and effective manner.We argue that no country is currently getting plant conservation right; plants are becoming increasingly rare around the world. Plants are often not fully …

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Sampling For Effective Ex Situ Plant Conservation, Edward O. Guerrant Jr., Kayri Havens, Pati Vitt Jan 2014

Sampling For Effective Ex Situ Plant Conservation, Edward O. Guerrant Jr., Kayri Havens, Pati Vitt

Environmental Science and Management Faculty Publications and Presentations

Sampling a whole flora or any significant subset for ex situ conservation purposes is a complex, long-term proposition. Thus, it is important to consider what constitutes an adequate sample not only for all taxa as a whole but also for each taxon individually as well as how to strategically schedule collection over time. There are five basic sampling questions: from which species to collect, from how many and which populations, from how many and which individuals, how many and what kind of propagules to collect, and, finally, at what point is the desired sample size too great for a population …

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