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Articles 3661 - 3690 of 4682
Full-Text Articles in Entire DC Network
Grassland Root Communities: Species Distributions And How They Are Linked To Aboveground Abundance., Douglas Frank, Alyssa Pontes, Eleanor M. Maine, Julie Caruana, Ramesh Raina, Surahbi Raina, Jason Fridley
Grassland Root Communities: Species Distributions And How They Are Linked To Aboveground Abundance., Douglas Frank, Alyssa Pontes, Eleanor M. Maine, Julie Caruana, Ramesh Raina, Surahbi Raina, Jason Fridley
Biology - All Scholarship
There is little comprehensive information on the distribution of root systems among coexisting species, despite the expected importance of those distributions in determining the composition and diversity of plant communities. This gap in knowledge is particularly acute for grasslands, which possess large numbers of species with morphologically indistinguishable roots. In this study we adapted a molecular method, fluorescent fragment length polymorphism, to identify root fragments and determine species root distributions in two grasslands in Yellowstone National Park. Aboveground biomass was measured and soil cores (2 cm diam) were collected to 40 cm and 90 cm in an upland, dry grassland …
Arthropod Foraging By A Southeastern Arizona Hummingbird Guild, Don Powers, Jessamyn A. Van Hook, Elizabeth A. Sandlin, Todd J. Mcwhorter
Arthropod Foraging By A Southeastern Arizona Hummingbird Guild, Don Powers, Jessamyn A. Van Hook, Elizabeth A. Sandlin, Todd J. Mcwhorter
Faculty Publications - Department of Biological & Molecular Science
We tested the hypothesis that foraging for arthropods may be a viable source of energy when hummingbirds are competitively excluded from sources of nectar. We hypothesized that the Magnificent Hummingbird (Eugenes fulgens) relies more upon arthropods than the Blue-throated Hummingbird (Lampornis clemenciae) or Blackchinned Hummingbird (Archilochus alexandri) in southeastern Arizona. We were unable to quantify arthropod foraging by A. alexandri, but measured frequent arthropod foraging by both E. fulgens and L. clemenciae. E. fulgens engaged in more aerial flycatching than L. clemenciae, and their rate of flycatching attempts was higher than by L. clemenciae. Analysis of gut contents showed that …
Explorations Of Aspects Of Mixotrophy Using Mathematical Models, Kenneth W. Crane
Explorations Of Aspects Of Mixotrophy Using Mathematical Models, Kenneth W. Crane
Biology Dissertations - Archive
This work examined three theoretical aspects of mixotrophy, the simultaneous use of phototrophic and heterotrophic nutritional modes, and one practical application. The first study addressed the coexistence of microorganisms pursuing diverse nutritional strategies. It was found that in the range of model environments explored that all four types of organisms were predicted to persist for certain parameter combinations. The most successful mixotrophs were predicted to be primarily autotrophic, supplementing photosynthesis with bacterivory. The second study extended the first one by focusing on the effects of environmental parameters governing resource supplies and the responses of populations and ecosystem properties in relation …
Nutritional Analysis Of High Fructose Corn Syrup, Emily Pitts
Nutritional Analysis Of High Fructose Corn Syrup, Emily Pitts
A with Honors Projects
An analysis of high fructose corn syrup and its positive and/or negative aspects.
First Report Of The Developmental Changes Inside The Eggs Of The Chinese Freshwater Crab , J Xue, Y Liu, Neil Cumberlidge, H X. Wu
First Report Of The Developmental Changes Inside The Eggs Of The Chinese Freshwater Crab , J Xue, Y Liu, Neil Cumberlidge, H X. Wu
Journal Articles
No abstract provided.
Seeking Generalities In Salt Stress Effects On Herbivores: A Multi-Species Approach, Christy Marie Foust
Seeking Generalities In Salt Stress Effects On Herbivores: A Multi-Species Approach, Christy Marie Foust
UNF Graduate Theses and Dissertations
Stress has been identified as one of the primary factors influencing the structure of food webs, but few conclusions about the effects of stress on community dynamics have emerged. This study examined generalities that exist between salt stress and insect herbivore responses. Ambient salinity was artificially increased by adding 1.3 kg/m2 of salt to six different plant species: Avicennia germinans, Baccharis halimifolia, Batis maritima, Borrichia frutescens, Iva frutescens, and Spartina alterniflora. By performing a multiple species examination, stress responses were examined to determine if consistencies within and between plant type, ambient salinity conditions, and host plant species (among other criteria) …
Transepithelial D-Glucose And D-Fructose Transport Across Lobster Intestine, Ijeoma Ebelechukwu Obi
Transepithelial D-Glucose And D-Fructose Transport Across Lobster Intestine, Ijeoma Ebelechukwu Obi
UNF Graduate Theses and Dissertations
The mechanisms of transepithelial absorption of dietary D-glucose and D-fructose in the American lobster, Homarus americanus, were investigated in this study in order to determine whether sugar transport proteins have been conserved throughout evolution. Whole lobster intestine was isolated and mounted in a perfusion chamber to determine transepithelial mucosal to serosal (MS) and serosal to mucosal (SM) mechanisms of 3H-D-glucose and 3H-D-fructose transport across the intestine. Unidirectional MS and SM fluxes were measured by adding variable concentrations of 3H-D-glucose and 3H-D-fructose (2.5 to 50uM) to either the perfusate or the bath respectively and sampling the …
Stealth Predation And The Predatory Success Of The Invasive Ctenophore Mnemiopsis Leidyi, Sean Colin, John H. Costello, Lars J. Hansson, Josefin Titelman, John O. Dabiri
Stealth Predation And The Predatory Success Of The Invasive Ctenophore Mnemiopsis Leidyi, Sean Colin, John H. Costello, Lars J. Hansson, Josefin Titelman, John O. Dabiri
Arts & Sciences Faculty Publications
In contrast to higher metazoans such as copepods and fish, ctenophores are a basal metazoan lineage possessing a relatively narrow set of sensory-motor capabilities. Yet lobate ctenophores can capture prey at rates comparable to sophisticated predatory copepods and fish, and they are capable of altering the composition of coastal planktonic communities. Here, we demonstrate that the predatory success of the lobate ctenophore Mnemiopsis leidyi lies in its use of cilia to generate a feeding current that continuously entrains large volumes of fluid, yet is virtually undetectable to its prey. This form of stealth predation enables M. leidyi to feed as …
A Multidimensional Strategy To Detect Polypharmacological Targets In The Absence Of Structural And Sequence Homology, Jacob D. Durrant, Rommie E. Amaro, Lei Xie, Michael D. Urbaniak, Michael A. J. Ferguson, Antti Haapalainen, Zhijun Chen, Anne Marie Di Guilmi, Frank Wunder, Philip E. Bourne, J. Andrew Mccammon
A Multidimensional Strategy To Detect Polypharmacological Targets In The Absence Of Structural And Sequence Homology, Jacob D. Durrant, Rommie E. Amaro, Lei Xie, Michael D. Urbaniak, Michael A. J. Ferguson, Antti Haapalainen, Zhijun Chen, Anne Marie Di Guilmi, Frank Wunder, Philip E. Bourne, J. Andrew Mccammon
Publications and Research
Conventional drug design embraces the ‘‘one gene, one drug, one disease’’ philosophy. Polypharmacology, which focuses on multi-target drugs, has emerged as a new paradigm in drug discovery. The rational design of drugs that act via polypharmacological mechanisms can produce compounds that exhibit increased therapeutic potency and against which resistance is less likely to develop. Additionally, identifying multiple protein targets is also critical for side-effect prediction. One third of potential therapeutic compounds fail in clinical trials or are later removed from the market due to unacceptable side effects often caused by off-target binding. In the current work, we introduce a multidimensional …
Biocontrol Of Fusarium Wilt By Bacillus Pumilus, Pseudomonas Alcaligenes And Rhizobium Sp. On Lentil, Mohd Sayeed Akhtar, Uzma Shakeel, Zaki A. Siddiqui
Biocontrol Of Fusarium Wilt By Bacillus Pumilus, Pseudomonas Alcaligenes And Rhizobium Sp. On Lentil, Mohd Sayeed Akhtar, Uzma Shakeel, Zaki A. Siddiqui
Turkish Journal of Biology
The present study examined the effects of Bacillus pumilus, Pseudomonas alcaligenes, and Rhizobium sp. on wilt disease caused by Fusarium oxysporum f. sp. lentis and on the growth of lentil. Inoculation with F. oxysporum caused significant wilting, and reduced plant growth, the number of pods, and nodulation. Inoculation with B. pumilus together with P. alcaligenes caused a greater increase in plant growth, number of pods, nodulation, and root colonization by rhizobacteria, and also reduced Fusarium wilting to a greater degree than did individual inoculation. Use of Rhizobium sp. resulted in a greater increase in plant growth, number of pods, and …
The Effect Of 4-Chloroindole-3-Acetic Acid On Some Growth Parameters In Mung Bean Under Cadmium Stress, Mohammad Mazid, Barket Ali, Shamsul Hayat, Aqil Ahmad
The Effect Of 4-Chloroindole-3-Acetic Acid On Some Growth Parameters In Mung Bean Under Cadmium Stress, Mohammad Mazid, Barket Ali, Shamsul Hayat, Aqil Ahmad
Turkish Journal of Biology
Seedlings of mung bean (Vigna radiata L. Wilczek) cv. T-44 grown on a sand culture were exposed to cadmium (Cd) (100 µM) on day 10 of growth. These seedlings were subsequently sprayed with deionized water (control) or 4-chloroindole-3-acetic acid (4-Cl-IAA) (10^{-6} M) on day 15 and were sampled 30 days after sowing to assess growth and metabolite content. Growth (length, and fresh and dry mass of roots and shoots) and the level of metabolites (chlorophyll, nitrogen, phosphorus, total sugar, and soluble protein) in the leaves significantly decrease in response to Cd stress; however, the 4-Cl-IAA (10^{-6} M) treatment, both in …
The Effect Of Ascorbic Acid And H_2o_2 Treatment On The Stability Of Anthocyanin Pigments In Berries, Elham Nikkhah, Masoud Khaiamy, Reza Heidary, Ali Sorayaie Azar
The Effect Of Ascorbic Acid And H_2o_2 Treatment On The Stability Of Anthocyanin Pigments In Berries, Elham Nikkhah, Masoud Khaiamy, Reza Heidary, Ali Sorayaie Azar
Turkish Journal of Biology
Anthocyanins are natural pigments widely distributed in nature. Anthocyanin pigment molecules are a subclass of flavonoids. They are responsible for the red, purple, and blue colors observed in many flowers, fruits, and vegetables. Fruits and berries are the main sources of anthocyanins in nature. Anthocyanins are thought to contribute to the nutritive value of fruits and berries due to their antioxidative, anti-carcinogenic, anti-inflammatory, and anti-angiogenic properties. Anthocyanins can also improve the nutritional value of processed foods by preventing the oxidation of lipids and proteins. As such, identification of agents that can affect the stability of anthocyanins and the protective effect …
Genetic Relationships Of The Genera Onobrychis, Hedysarum, And Sartoria Using Seed Storage Proteins, Emi̇ne Arslan, Kuddi̇si̇ Ertuğrul
Genetic Relationships Of The Genera Onobrychis, Hedysarum, And Sartoria Using Seed Storage Proteins, Emi̇ne Arslan, Kuddi̇si̇ Ertuğrul
Turkish Journal of Biology
Fifteen species belonging to 3 genera (Onobrychis, Hedysarum and Sartoria), collected from different geographical regions of Turkey were studied for the polypeptide patterns of their seed storage proteins. The variability of seed storage proteins was analysed by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). As many as 72 bands were scored and a dendrogram was constructed using UPGMA (unweighted pair group method with arithmetic mean). The dendrogram of the electrophoretic protein profiles of seeds showed 2 main clusters. While the first cluster with further subclusters included Onobrychis species, the second cluster included Sartoria and Hedysarum species present in 2 separate subclusters. …
Characterization Of Essential Oils Of Some Salvia Species And Their Antimycobacterial Activities, Tüli̇n Aşkun, K. Hüsnü Can Başer, Gülendam Tümen, Mi̇ne Kürkçüoğlu
Characterization Of Essential Oils Of Some Salvia Species And Their Antimycobacterial Activities, Tüli̇n Aşkun, K. Hüsnü Can Başer, Gülendam Tümen, Mi̇ne Kürkçüoğlu
Turkish Journal of Biology
The compositions of the essential oils of 5 Turkish Salvia species, namely Salvia aucheri Bentham var. aucheri (endemic for Turkey), Salvia aramiensis Rech. fil., Salvia fruticosa Mill., Salvia tomentosa Mill., and Salvia verticillata L. subsp. amasiaca (Freyn & Bornm.) Bornm., were studied. Water distilled essential oils from the aerial parts of Salvia species from Turkey were analysed by GC and GC/MS. Salvia aucheri var. aucheri, Salvia aramiensis, and Salvia fruticosa oils have the same main constituent: 1,8-cineole (39.2%, 55.6%, and 52.8% respectively). \alpha-Pinene (25.1%), camphor (14.9%), and borneol (13.2%) were identified as the major components of Salvia tomentosa. The main …
Nutritive Value Of Edible Wild And Cultured Mushrooms, Sevda Kirbağ, Mehmet Akyüz
Nutritive Value Of Edible Wild And Cultured Mushrooms, Sevda Kirbağ, Mehmet Akyüz
Turkish Journal of Biology
The nutritive value of Pleurotus ostreatus (Jacq. ex Fr.) Kumm., Pleurotus sajor-caju (Fr.) Singer, and Agaricus bisporus (Large) Sign. was determined. Dry matter, moisture, crude ash, protein, fat, cellulose, organic matter, and nitrogen-free extract were 89.7%-90.3%, 9.7%-10.3%, 6.0%-13.7%, 27.8%-41.6%, 0.5%-1.3%, 10.0%-16.2%, 76.0%-84.0%, and 26.7%-36.8% of dry weight, respectively. Mineral element contents were 14.1-45.6 g K kg^{-1}, 0.2-1.2 g Ca kg^{-1} , 0.4-1.9 g Mg kg^{-1}, and 0.2-0.9 g Na kg^{-1} as macronutrients, and 176.5-838.0 mg Fe kg^{-1}, 35.0-46.0 mg Zn kg^{-1}, 4.8-65.4 mg Mn kg^{-1}, 6.5-21.5 mg Cu kg^{-1}, 0.0-11.5 mg Cr kg^{-1}, and 0.0-1.65 mg Cd kg^{-1} as micronutrients …
The Effects Of The Pho85 Signaling Pathway On The Invertase Biosynthesis And Glucose Uptake In Saccharomyces Cerevisiae, Sezai̇ Türkel, Eli̇f Arik
The Effects Of The Pho85 Signaling Pathway On The Invertase Biosynthesis And Glucose Uptake In Saccharomyces Cerevisiae, Sezai̇ Türkel, Eli̇f Arik
Turkish Journal of Biology
Glucose signaling controls a wide range of metabolic events in the yeast Saccharomyces cerevisiae. Glucose sensing and signaling processes require a variety of membrane-bound and cytoplasmic sensor proteins. Pho85p is a cyclin-dependent protein kinase that controls different metabolic events upon binding to its cyclin partners in the cytoplasm of yeast cells. In this study, we investigated the roles of Pho85p in the glucose signaling pathways that control invertase biosynthesis and glucose uptake in yeast. The biosynthesis of invertase enzyme from the SUC2 gene is controlled by glucose repression and derepression mechanisms in S. cerevisiae. However, the results of this research …
Antioxidant And Antiradical Activities Of Phenolic Extracts From Iranian Almond (Prunus Amygdalus L.) Hulls And Shells, Ali Jahanban Isfahlan, Ahmad Mahmoodzadeh, Abdollah Hasanzadeh, Reza Heidari, Rashid Jamei
Antioxidant And Antiradical Activities Of Phenolic Extracts From Iranian Almond (Prunus Amygdalus L.) Hulls And Shells, Ali Jahanban Isfahlan, Ahmad Mahmoodzadeh, Abdollah Hasanzadeh, Reza Heidari, Rashid Jamei
Turkish Journal of Biology
Wild almonds of Iran show genetic diversity and have very a large distribution. Different species of these almonds have more variation in genes resistant to dryness, saltiness, diseases, pests, and other factors. In order to compare the antioxidant and antiradical activity of wild almond hull and shell phenolic extracts, 4 wild almond species (Amygdalus lycioides Spach, A. kotschyi Boiss. & Hohen, A. pabotti Browicz, A. trichamygdalus (Hand.-Mzt) Woronow) were selected from Shahindezh and Qasemloo Valley, West Azerbaijan province, Iran, in 2007. The fruits of these almonds were collected, their hulls and shells were dried and then ground, and then methanolic …
Antioxidant And Antimicrobial Activities Of An Aquatic Plant: Duckweed (Lemna Minor L.), İlhami̇ Gülçi̇n, Ekrem Ki̇reçci̇, Ebru Akkemi̇k, Fevzi̇ Topal, Olcay Hi̇sar
Antioxidant And Antimicrobial Activities Of An Aquatic Plant: Duckweed (Lemna Minor L.), İlhami̇ Gülçi̇n, Ekrem Ki̇reçci̇, Ebru Akkemi̇k, Fevzi̇ Topal, Olcay Hi̇sar
Turkish Journal of Biology
Duckweed (Lemna minor L. Lemnaceae) is a widespread, free-floating aquatic macrophyte, a source of food for waterfowl and a shelter for small aquatic invertebrates. It grows quickly and reproduces faster than other vascular plants. The objective of this study was to determine the antioxidant, antiradical, antimicrobial, and anticandidal activities of duckweed using different in vitro methodologies. For evaluation of antioxidant and antiradical activities, 2,2´-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS.+) radical scavenging, 1,1-diphenyl-2-picryl-hydrazyl (DPPH.) free radical scavenging, total antioxidant activity by ferric thiocyanate, total reducing power by potassium ferricyanide reduction method, superoxide anion radical scavenging, hydrogen peroxide scavenging, and ferrous ions chelating activities were …
Evaluation Of Hypoglycemic And Hypolipidemic Activity Of Buteamonosperma Fruit In Diabetic Human Subjects, Fizza Naeem, Sohail Hassan Khan
Evaluation Of Hypoglycemic And Hypolipidemic Activity Of Buteamonosperma Fruit In Diabetic Human Subjects, Fizza Naeem, Sohail Hassan Khan
Turkish Journal of Biology
Evaluation of the hypoglycemic activity of local Butea monosperma (Palas papra) fruit in normal and diabetic human volunteers was conducted. Sampling was accomplished in and around the city of Faisalabad, especially at the Khadija Mahmood Trust Hospital and at the University of Agriculture, Faisalabad, Pakistan. Volunteers were categorized into normal and diabetic subjects on the basis of their blood glucose levels. Male and female diabetic volunteers aged between 30 and 60 years participated in the study. All the diabetic volunteers suffered from diabetes type II, i.e. non-insulin-dependent diabetes mellitus (NIDDM). The subjects were divided into 5 groups as follows: Group …
The Genotoxic And Antigenotoxic Effects Of Aloe Vera Leaf Extract In Vivo And In Vitro, Ahmet Kayraldiz, Ayşe Yavuz Kocaman, Eyyüp Rencüzoğullari, Erman Sali̇h İsti̇fli̇, Hasan Basri̇ İla, Mehmet Topaktaş, Yusuf Kenan Dağlioğlu
The Genotoxic And Antigenotoxic Effects Of Aloe Vera Leaf Extract In Vivo And In Vitro, Ahmet Kayraldiz, Ayşe Yavuz Kocaman, Eyyüp Rencüzoğullari, Erman Sali̇h İsti̇fli̇, Hasan Basri̇ İla, Mehmet Topaktaş, Yusuf Kenan Dağlioğlu
Turkish Journal of Biology
The genotoxic and antigenotoxic effects of Aloe vera leaf extract (AV) were investigated using the chromosome aberrations (CAs) test for the bone marrow cells of rats, sister chromatid exchanges (SCEs) and micronucleus (MN) and CAs tests for human lymphocytes, and the Ames Salmonella/microsome test system. In the bone marrow cells of rats, AV extract significantly induced structural and total CAs at all concentrations and in all treatment periods. In human peripheral lymphocytes, AV did not increase the mean SCE; however, it significantly induced the MN frequency and structural CAs. In addition, AV showed a cytotoxic effect by decreasing the replication …
Fatty Acid Composition Of Total Lipids In Muscle Tissues Of Nine Freshwater Fish From The River Tigris (Turkey), Eli̇f İpek Cengi̇z, Erhan Ünlü, Mehmet Başhan
Fatty Acid Composition Of Total Lipids In Muscle Tissues Of Nine Freshwater Fish From The River Tigris (Turkey), Eli̇f İpek Cengi̇z, Erhan Ünlü, Mehmet Başhan
Turkish Journal of Biology
Fatty acid compositions of total lipids in the muscle of 9 freshwater fish species were examined via gas chromatography. Palmitic acid and oleic acid were the predominant saturated (SFA) and monounsaturated fatty acids (MUFA) in all the species analyzed. The highest value of total SFA was detected in Liza abu (48.94%). Alburnus mossulensis had the greatest percentage of total MUFA (55.56%). Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) were the most abundant PUFA in all the species analyzed. Cyprinion macrostomus had the highest percentage (72.65%) of total PUFA. The ratio of \omega3/\omega6 PUFAs ranged from 0.39 to 3.53. Chondrostoma regium, …
A Native Glomus Sp. From Fields In Aydın Province And Effects Of Native And Commercial Mycorrhizal Fungi Inoculants On The Growth Of Some Vegetables, Ayhan Yildiz
Turkish Journal of Biology
Seventy soil samples were collected from 25 different plant varieties grown in fields in Aydın province. Arbuscular mycorrhizal fungi (AMF) were found in 59 soil samples; 58 of these were identified as Glomus sp. and 1 as Gigaspora sp. Due to its adaptation characteristics, growth rates, and colonization properties, Glomus sp. was selected for further study. The effects of Glomus sp. and BioOrganics (Glomus aggregatum, G. clarum, G. deserticola, G. intraradices, G. monosporus, G. mosseae, Gigaspora margarita, and Paraglomus brasilianum) on tomato, pepper, and cucumber plant development were evaluated. The indigenous Glomus sp. showed positive effects on cucumber and tomato …
Interaction Between The Biotin Carboxyl Carrier Domain And The Biotin Carboxylase Domain In Pyruvate Carboxylase From Rhizobium Etli, Adam D. Lietzan, Ann L. Menefee, Tonya N. Zeczycki, Sudhanshu Kumar, Paul V. Attwood, John C. Wallace, W. Wallace Cleland, Martin St. Maurice
Interaction Between The Biotin Carboxyl Carrier Domain And The Biotin Carboxylase Domain In Pyruvate Carboxylase From Rhizobium Etli, Adam D. Lietzan, Ann L. Menefee, Tonya N. Zeczycki, Sudhanshu Kumar, Paul V. Attwood, John C. Wallace, W. Wallace Cleland, Martin St. Maurice
Biological Sciences Faculty Research and Publications
Pyruvate carboxylase (PC) catalyzes the ATP-dependent carboxylation of pyruvate to oxaloacetate, an important anaplerotic reaction in mammalian tissues. To effect catalysis, the tethered biotin of PC must gain access to active sites in both the biotin carboxylase domain and the carboxyl transferase domain. Previous studies have demonstrated that a mutation of threonine 882 to alanine in PC from Rhizobium etli renders the carboxyl transferase domain inactive and favors the positioning of biotin in the biotin carboxylase domain. We report the 2.4 Å resolution X-ray crystal structure of the Rhizobium etli PC T882A mutant which reveals the first high-resolution description of …
Cellular And Molecular Dissection Of Pluripotent Adult Somatic Stem Cells In Planarians, Norito Shibata, Labib Rouhana, Kiyokazu Agata
Cellular And Molecular Dissection Of Pluripotent Adult Somatic Stem Cells In Planarians, Norito Shibata, Labib Rouhana, Kiyokazu Agata
Biological Sciences Faculty Publications
Freshwater planarians, Plathelminthes, have been an intriguing model animal of regeneration studies for more than 100 years. Their robust regenerative ability is one of asexual reproductive capacity, in which complete animals develop from tiny body fragments within a week. Pluripotent adult somatic stem cells, called neoblasts, assure this regenerative ability. Neoblasts give rise to not only all types of somatic cells, but also germline cells. During the last decade, several experimental techniques for the analysis of planarian neoblasts at the molecular level, such as in situ hybridization, RNAi and fluorescence activated cell sorting, have been established. Moreover, information about genes …
Environmental Correlates Of Abundances Of Mosquito Species And Stages In Discarded Vehicle Tires, Donald A. Yee, Jamie M. Kneitel, Steven A. Juliano
Environmental Correlates Of Abundances Of Mosquito Species And Stages In Discarded Vehicle Tires, Donald A. Yee, Jamie M. Kneitel, Steven A. Juliano
Faculty Publications – Biological Sciences
Discarded vehicle tires are a common habitat for container mosquito larvae, although the environmental factors that may control their presence or abundance within a tire are largely unknown. We sample discarded vehicle tires in six sites located within four counties of central Illinois during the spring and summer of 2006 to determine associations between a suite of environmental factors and community composition of container mosquitoes. Our goal was to find patterns of association between environmental factors and abundances of early and late instars. We hypothesized that environmental factors correlated with early instars would be indicative of oviposition cues, whereas environmental …
Aphrodisiac Activity And Curative Effects Of Pedalium Murex (L) Against Ethanol Induced Infertility In Male Rats, Gunasekaran Balamurugan, P. Muralidharan, Satyanarayana Polapala
Aphrodisiac Activity And Curative Effects Of Pedalium Murex (L) Against Ethanol Induced Infertility In Male Rats, Gunasekaran Balamurugan, P. Muralidharan, Satyanarayana Polapala
Turkish Journal of Biology
It has been suggested that chronic ethanol exposure may result in testicular damage and infertility in males. Petroleum ether extract of Pedalium murex, family Pedaliaceae (PEPM), is evaluated in this study for its ability to increase aphrodisiac activity and to cure ethanol induced germ cell damage and infertility in male rat models. Doses of 200 and 400 mg/kg of PEPM showed a significant increase (P < 0.01, P < 0.001) in mating and mounting behaviour. The effect on fertility factors such as total body weight, percentage of pregnancy, litter size were also significantly increased (P < 0.01) in comparison with the ethanol-treated group. Significant increases in sperm motility and count were observed in PEPM-treated groups in a dose-dependent manner (P < 0.01; P < 0.001) as compared with the ethanol-treated group. Similarly, reductions in the percentage of abnormal sperm were noted in animals treated with PEPM 400 mg/kg. The effects of PEPM on total protein, total cholesterol and testosterone were satisfactory, the levels being increased significantly for protein (P < 0.05), cholesterol (P < 0.01) and testosterone (P < 0.05) by 400 mg/kg PEPM. Microtome sections of the testes of animals treated with 400 mg/kg PEPM exhibited restoration and recovery of germinal cells and the luminal spermatozoa and were comparable with the control group animals. These effects of PEPM make this natural herb ideal as an aphrodisiac and a potent fertility enhancing drug.
Physiological And Antioxidant Response Of Three Cultivars Of Cucumber (Cucumis Sativus L.) To Salinity, Gökçen Baysal Furtana, Ruki̇ye Tipirdamaz
Physiological And Antioxidant Response Of Three Cultivars Of Cucumber (Cucumis Sativus L.) To Salinity, Gökçen Baysal Furtana, Ruki̇ye Tipirdamaz
Turkish Journal of Biology
The effects of salinity on the growth, relative water content (RWC), chlorophyll content, inorganic ions, proline accumulation, lipid peroxidation and antioxidant enzymes, superoxide dismutase (SOD), ascorbate peroxidase (APOX), and catalase (CAT) of 3 cucumber (Cucumis sativus L.) cultivars (Çengelköy, Anadolu F1, and Beith Alpha) were investigated. Cucumber cultivars were grown in perlite culture and irrigated with half-strength Hoagland nutrient solution for a period of 35 days under controlled conditions. After this period, seedlings were treated with 150 mM NaCl solution and the plants were harvested on day 7 and day 14 of salt treatment. The fresh and dry weights, RWC, …
Commentary Of Off-Label Prescribing: A Call For Heightened Professional And Government Oversight, Mark A. Jaffe
Commentary Of Off-Label Prescribing: A Call For Heightened Professional And Government Oversight, Mark A. Jaffe
Biology Faculty Articles
No abstract provided.
Tourist Behavior And Decibel Levels Correlate With Threat Frequency In Tibetan Macaques (Macaca Thibetana) At Mt. Huangshan, China, Lucy A. Ruesto, Lori K. Sheeran, Megan D. Matheson, Jin-Hua Li, R. Steven Wagner
Tourist Behavior And Decibel Levels Correlate With Threat Frequency In Tibetan Macaques (Macaca Thibetana) At Mt. Huangshan, China, Lucy A. Ruesto, Lori K. Sheeran, Megan D. Matheson, Jin-Hua Li, R. Steven Wagner
Biology Faculty Scholarship
Tourism is a common component of management practices directed toward endangered species and habitats, but few studies have explored the potential stressors that may occur to nonhumans as objects of tourism. We examined the impact that tourists have on provisioned, habituated Tibetan macaques (Macaca thibetana). Data were collected during August 2005 at the Valley of the Wild Monkeys (VWM), Mt. Huangshan, China. From a tourist viewing platform, we measured tourist densities, behaviors (for example, foot, hand, and mouth noises; mimicking monkeys; throwing objects or food), and decibel levels. Frequencies of monkey threats in the provisioning area of their …
Bioluminescence In The Sea, Steven H.D. Haddock, Mark A. Moline, James F. Case
Bioluminescence In The Sea, Steven H.D. Haddock, Mark A. Moline, James F. Case
Biological Sciences
Bioluminescence spans all oceanic dimensions and has evolved many times—from bacteria to fish—to powerfully influence behavioral and ecosystem dynamics. New methods and technology have brought great advances in understanding of the molecular basis of bioluminescence, its physiological control, and its significance in marine communities. Novel tools derived from understanding the chemistry of natural light-producing molecules have led to countless valuable applications, culminating recently in a related Nobel Prize. Marine organisms utilize bioluminescence for vital functions ranging from defense to reproduction. To understand these interactions and the distributions of luminous organisms, new instruments and platforms allow observations on individual to oceanographic …