Tetracycline And Sulfonamide
Antibiotic Resistance Genes In Soils
From Nebraska Organic Farming
Operations,
2018
University of Texas at El Paso
Tetracycline And Sulfonamide Antibiotic Resistance Genes In Soils From Nebraska Organic Farming Operations, Marylynn Cadena, Lisa M. Durso, Daniel N. Miller, Heidi M. Waldrip, B. L. Castleberry, Rhae A. Drijber, Charles S. Wortmann
Department of Agronomy and Horticulture: Faculty Publications
There is widespread agreement that agricultural antibiotic resistance should be reduced, however, it is unclear from the available literature what an appropriate target for reduction would be. Organic farms provide a unique opportunity to disentangle questions of agricultural antibiotic drug use from questions of antibiotic resistance in the soil. In this study, soil was collected from 12 certified organic farms in Nebraska, evaluated for the presence of tetracycline and sulfonamide resistance genes (n = 15 targets), and correlated to soil physical, chemical, and biological parameters. Tetracycline and sulfonamide antibiotic resistance genes (ARGs) were found in soils from all 12 …
Morphology, Taxonomy And Mating‑Type Loci In Natural Populations Of Volvox Carteri In Taiwan,
2018
University of Tokyo
Morphology, Taxonomy And Mating‑Type Loci In Natural Populations Of Volvox Carteri In Taiwan, Hisayoshi Nozaki, Noriko Ueki, Mari Takusagawa, Shota Yamashita, Osami Misumi, Ryo Matsuzaki, Masanobu Kawachi, Yin-Ru Chiang, Jiunn-Tzong Wu
Publications and Research
Background: Volvox carteri f. nagariensis is a model taxon that has been studied extensively at the cellular and molecular level. The most distinctive morphological attribute of V. carteri f. nagariensis within V. carteri is the production of sexual male spheroids with only a 1:1 ratio of somatic cells to sperm packets or androgonidia (sperm packet initials). However, the morphology of male spheroids of V. carteri f. nagariensis has been examined only in Japanese strains. In addition, V. carteri f. nagariensis has heterothallic sexuality; male and female sexes are determined by the sex-determining chromosomal region or mating-type locus composed of a …
New Additions To The Flora Of San Nicolas Island, Ventura County, California,
2018
San Jose State University, San Jose, CA
New Additions To The Flora Of San Nicolas Island, Ventura County, California, Benjamin E. Carter, William F. Hoyer Iii, Jonathan Dunn, C. Matt Guilliams
Aliso: A Journal of Systematic and Floristic Botany
Ongoing collecting efforts on San Nicolas Island have substantially increased the number of plant species documented from the island. Here we report thirty-one plants previously unrecorded from the island. The list includes six eudicots, one monocot, four liverworts and twenty mosses. Five of these species are understood to be introduced on San Nicolas and the remainder are believed to be native. The native vascular plants are Logfia filaginoides, Cistanthe maritima and Muhlenbergia microsperma. Of the twenty-four new bryophytes, one—Asterella bolanderi—is the first record from the Channel Islands. Specific ecological and locality information are provided for the …
Contents 36(2),
2018
Claremont Colleges
Contents 36(2)
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Contents,
2018
University of Arkansas, Fayetteville
Contents, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Letter From The Dean,
2018
University of Arkansas, Fayetteville
Letter From The Dean, Deacue Fields
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 19 2018,
2018
University of Arkansas, Fayetteville
Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 19 2018, Several Authors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
New For Discovery: Scholarworks@Uark,
2018
University of Arkansas, Fayetteville
New For Discovery: Scholarworks@Uark, Discovery Editors
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
No abstract provided.
Winter Surveys Of Cotinus Obovatus (American Smoketree) In The Ozark Mountains,
2018
National Museum of Natural History; University of Copenhagen
Winter Surveys Of Cotinus Obovatus (American Smoketree) In The Ozark Mountains, Gary R. Graves
Journal of the Arkansas Academy of Science
Cotinus obovatus (American smoketree) is a rare deciduous tree with a relictual distribution in southeastern North America. Efforts to map its fine-scale geographic distribution in the Ozark Mountains have been limited to the growing season when the distinctive blooming panicles and foliage facilitate detection in hardwood-cedar woodlands. I describe the physiognomic traits of leafless C. obovatus that permit effective population mapping in winter landscapes. Clumped growth and diagonally leaning stems facilitate detection at a distance. Bark texture, twig morphology, and sap odor confirm the identity of the tree at close range.
New Species, New Combinations And New Synonymies Towards A Treatment Of Acanthaceae For The Manual De Plantas De Costa Rica,
2018
Rancho Santa Ana Botanic Garden, Claremont, CA
New Species, New Combinations And New Synonymies Towards A Treatment Of Acanthaceae For The Manual De Plantas De Costa Rica, Lucinda A. Mcdade, Barry E. Hammel, Carrie A. Kiel
Aliso: A Journal of Systematic and Floristic Botany
In preparation for the publication of the Manual de Plantas de Costa Rica, new species, names, combinations, and synonymies are provided in six genera of Acanthaceae: Anisacanthus, Chamaeranthemum, Dicliptera, Justicia, Ruellia and Stenostephanus. The new species are A. grace-woodiae, J. altior, J. lithophila and S. chavesii. A new name at the species level, R. leonardiana, is provided for R. tubiflora var. hirsuta. With Habracanthus, Hansteinia, Kalbreyeriella and Razisea being subsumed within Stenostephanus, the new combinations S. blepharorhachis, S. citrinus, S. leiorhachis (= Razisea spicata …
Index To Volume 36,
2018
Claremont Colleges
Index To Volume 36
Aliso: A Journal of Systematic and Floristic Botany
No abstract provided.
Terrestrial Coarse Woody Debris,
2018
University of Dayton
Terrestrial Coarse Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan
Data Files
No abstract provided.
Lonicera Maackii Berry Leachate Toxicity: Physicochemical Data,
2018
University of Dayton
Lonicera Maackii Berry Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Data Files
In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.
Application Of Machine Learning Methodologies For
Predicting Corn Economic Optimal Nitrogen Rate,
2018
Dupont Pioneer
Application Of Machine Learning Methodologies For Predicting Corn Economic Optimal Nitrogen Rate, Zhisheng Qin, D. Brenton Myers, Curtis J. Ransom, Newell R. Kitchen, Sang-Zi Liang, James J. Camberato, Paul R. Carter, Richard B. Ferguson, Fabian G. Fernandez, David W. Franzen, Carrie A. M. Laboski, Brad D. Malone, Emerson D. Nafziger, John E. Sawyer, John F. Shanahan
Department of Agronomy and Horticulture: Faculty Publications
Determination of in-season N requirement for corn (Zea mays L.) is challenging due to interactions of genotype, environment, and management. Machine learning (ML), with its predictive power to tackle complex systems, may solve this barrier in the development of locally based N recommendations. The objective of this study was to explore application of ML methodologies to predict economic optimum nitrogen rate (EONR) for corn using data from 47 experiments across the US Corn Belt. Two features, a water table adjusted available water capacity (AWCwt) and a ratio of in-season rainfall to AWCwt (RAWCwt), were …
A Comparison Of Logistic Regression And Maximum Entropy For Distribution Modeling Of Range Plant Species (A Case Study In Rangelands Of Western Taftan, Southeastern Iran), Hossein Piri Sahragard, Majid Ajorlo
Turkish Journal of Botany
This study aimed to compare the efficiency of logistic regression and maximum entropy models for distribution modelling of plant species habitats in the rangelands of western Taftan, southeastern Iran. Vegetation cover was sampled using a systematic-randomized method. Soils were sampled at 0?30 and 30?60 cm depths through digging of eight soil profiles. The agreement between predictive maps generated by models with documented maps of habitats indicated that logistic regression was able to predict the distribution of Artemisia aucheri and Artemisia sieberi habitats at excellent (kappa value = 0.95) and weak (kappa value = 0.39) levels, respectively. On the other hand, …
Roselliniella Lecideae Sp. Nov. And Other Interesting Lichenicolous Fungi From The Northern Black Sea Region (Ukraine),
2018
TÜBİTAK
Roselliniella Lecideae Sp. Nov. And Other Interesting Lichenicolous Fungi From The Northern Black Sea Region (Ukraine), Valeriy Darmostuk, Alexander Khodosovtsev, Ganna Naumovich, Nadiia Kharechko
Turkish Journal of Botany
The lichenicolous fungus Roselliniella lecideae sp. nov. on Lecidea fuscoatra is described from Ukraine. It is characterized by globose ostiolate perithecia, 2-3 septate hyaline periphyses, unitunicate 8-spored asci, and unicellular ellipsoid brown ascospores. This species, close to Roselliniella microthelia, has shorter periphyses, smaller asci, and ascospores, and its hosts. Brackelia lunkei, Henfellra muriformis, Lichenoconium aeruginosum, Lichenohendersonia squamarinae, Lichenostigma dimelaenae, Sphaerellothecium atryneae, Stigmidium epistigmellum, S. stygnospilum, Pronectria xanthoriae, Refractohilum achromaticum, and Zwackhiomyces lithoiceae are reported for the first time from Ukraine. Two species are new for the plains of Ukraine, three are new to the steppe zone of Ukraine, and one …
Embryological Studies On Trichloris (Poaceae, Chloridoideae),
2018
TÜBİTAK
Embryological Studies On Trichloris (Poaceae, Chloridoideae), Geraldina Alicia Richard, María Carolina Cerino, Beatriz G. Galati, Eliana De Luján Exner, José Francisco Pensiero
Turkish Journal of Botany
The present study provides information on the development of the female and male gametophytes and seed ontogeny characteristics for Trichloris, and it discusses their taxonomic significance to the family Poaceae. Trichloris species are characterized by having 2?3 stamens per floret, tetrasporangiate anthers, a monocotyledonous development of the anther wall, a single middle layer of common origin with the tapetum, fibrous thickening in the cell walls of the endothecium, and a secretory tapetum. These characteristics are constant within Poaceae. The possession of bitegmic and tenuinucellate ovules, laterally positioned antipodals prior to their degeneration, a free exocarp, and an epiblast in the …
New Taraxacum Species (Asteraceae) For Poland,
2018
TÜBİTAK
New Taraxacum Species (Asteraceae) For Poland, Bohumil Travnicek, Pawel Marciniuk, Jolanta Marciniuk, Vojtech Zila, Krzysztof Oklejewicz, Mateusz Marian Wolanin, Jaroslav Zamecnik
Turkish Journal of Botany
Eleven Taraxacum species were given from Poland for the first time: T. praecox from the section Borea , T. fusciflorum from the section Hamata , and T. clarum , T. praestabile , T. xanthostigma , T. floccosum , T. lundense , T. ottonis , T. subborgvallii , T. pittochromatum , and T. subleucopodum from the section Taraxacum . A photograph of the herbarium specimen from Poland and distributions in Poland and Europe were given for each species.
A New Species And A New Natural Hybrid Of Origanum L. (Lamiaceae) From The West Of Turkey,
2018
TÜBİTAK
A New Species And A New Natural Hybrid Of Origanum L. (Lamiaceae) From The West Of Turkey, Tuncay Di̇rmenci̇, Türker Yazici, Taner Özcan, Sevcan Çelenk, Esra Marti̇n
Turkish Journal of Botany
Origanum ayliniae Dirmenci & Yazıcı, which differs significantly from O. dictamnus L., is described for the first time in this paper. In addition, a new hybrid, O. x adae Dirmenci & Yazıcı, between O. ayliniae and O. sipyleum L., is described and investigated in detail. The general morphology, pollen structure, chromosome features, and nuclear (ITS) and chloroplast (rpl32) genomes of collected specimens were studied. O. x adae was determined to have some intermediate properties morphologically and palynologically that place it between the parents. Pollen size and shape were important features in the diagnosis of the hybrid and its parents in …
A New Species Of Cymbocarpum (Apiaceae) From The Central Anatoliaregion Of Turkey And Its Phylogenetic Position Within Tordylieae, Yusuf Menemen, Burçi̇n Çingay, Aşkin Öykü Çi̇men, Şeref Ertaş
Turkish Journal of Botany
A new species, Cymbocarpum alinihatii, is described from the Central Anatolia Region of Turkey. Diagnostic and morphological characteristics that distinguish it from allied species C. anethoides, C. wiedemannii, C. amanum, C. erythraeum, and C. marginatum and an identification key for all Cymbocarpum species are provided. To assess its phylogenetic placement, a maximum parsimony analysis of nrDNA ITS sequences from representative members of tribe Tordylieae was carried out. It shows that the new species nests within a well-supported clade comprising members of Cymbocarpum with strong bootstrap value, but it is distinguished from its most closely related species, C. anethoides and C. …
