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THE EVOLUTION of SEED MORPHOLOGY in DOMESTICATED Chenopodium: an ARCHAEOLOGICAL CASE STUDY
]. Ethnobiol. 13(2):149-169 Winter 1993 THE EVOLUTION OF SEED MORPHOLOGY IN DOMESTICATED Chenopodium: AN ARCHAEOLOGICAL CASE STUDY KRISTEN }. GREMILLION Department of Anthropology The Ohio Stute University Columbus, OH 43210-1364 ABSTRACf.-A large body of data on several key morphological characters has been compiled through examination of collections of archaeological Chenopodium from eastern North America. Contrary to expectations based on change in certain other seed crops, the patterns of variation observed in Chenopodium do not reflect a gradual evolution of seed morphology away from the wild type. Evidence for decreasing levels of morphological variability in the evolving domesticate is like wise minimal. These findings demonstrate that the rate and character of crop evolution as revealed in the archaeological record can be expected to vary consid erably among taxa. RESUMEN.-Se ha compilado un extenso ouerpo de datos sobre varios carac teres morfol6gicos clave mediante el examen de colecciones de Chenopodium arqueol6gico del este de Norteamerica. Contrariamente a las expectativas basadas en el cambio en ciertos otms cultivos de semilla, los patrones de variaci6n obser vados en Chenopodium no reflejan una evoluci6n gradual de la morfologia de las semillas en credente distancia del tipo silvestre. La evidencia de niveles decre cientes de variabilidad morfol6gica en la especie domesticada en evoluci6n es asimismo minima. Estos resultados demuestran que puede esperarse que la 13sa y el caracter de la evoluci6n de los cultivos, tal y como se revela en el registro arqueol6gico, varien considerablemente entre taxa distintos. REsUME.-Un large ensemble de donnees concernant plusieurs characteres mor phologiques importants a ete recueilli en examinant des collections de Cheno podium de I'est de I' Amerique. -
Safety Assessment of Helianthus Annuus (Sunflower)-Derived Ingredients As Used in Cosmetics
Safety Assessment of Helianthus annuus (Sunflower)-Derived Ingredients as Used in Cosmetics Status: Draft Tentative Report for Panel Review Release Date: March 7, 2016 Panel Meeting: March 31-April 1, 2016 The 2016 Cosmetic Ingredient Review Expert Panel members are: Chair, Wilma F. Bergfeld, M.D., F.A.C.P.; Donald V. Belsito, M.D.; Ronald A. Hill, Ph.D.; Curtis D. Klaassen, Ph.D.; Daniel C. Liebler, Ph.D.; James G. Marks, Jr., M.D.; Ronald C. Shank, Ph.D.; Thomas J. Slaga, Ph.D.; and Paul W. Snyder, D.V.M., Ph.D. The CIR Director is Lillian J. Gill, D.P.A. This report was prepared by Lillian C. Becker, Scientific Analyst/Writer. © Cosmetic Ingredient Review 1620 L Street, NW, Suite 1200 Washington, DC 20036-4702 ph 202.331.0651 fax 202.331.0088 [email protected] 1 Distributed for comment only -- do not cite or quote Commitment & Credibility since 1976 MEMORANDUM To: CIR Expert Panel and Liaisons From: Lillian C. Becker, M.S. Scientific Analyst and Writer Ivan J. Boyer, PhD, DABT Senior Toxicologist Date: March 7, 2016 Subject: Helianthus annuus (Sunflower)-Derived Ingredients as Used in Cosmetics Attached is the tentative report of 13 Helianthus annuus (sunflower)-derived ingredients as used in cosmetics. [Helian122015Rep] All of these ingredients are derived from parts of the Helianathus annuus (sunflower) plant. The sunflower seed oils (with the exception of Ozonized Sunflower Seed Oil) were reviewed in the vegetable- derived oils report and are not included here. In December, 2015, the Panel issued an Insufficient Data Announcement with these data needs: • HRIPT of Hydrogenated Sunflower Seed Extract at 1% or greater • Method of manufacture, including clarification of the source material (whole plant vs “bark”), of Helianthus Annuus (Sunflower) Extract • Composition of these ingredients, especially protein content (including 2S albumin) Impurities The Council submitted summaries of HRIPTs and use studies of products containing Helianthus annuus (sunflower)-derived ingredients. -
Tree of Life Marula Oil in Africa
HerbalGram 79 • August – October 2008 HerbalGram 79 • August Herbs and Thyroid Disease • Rosehips for Osteoarthritis • Pelargonium for Bronchitis • Herbs of the Painted Desert The Journal of the American Botanical Council Number 79 | August – October 2008 Herbs and Thyroid Disease • Rosehips for Osteoarthritis • Pelargonium for Bronchitis • Herbs of the Painted Desert • Herbs of the Painted Bronchitis for Osteoarthritis Disease • Rosehips for • Pelargonium Thyroid Herbs and www.herbalgram.org www.herbalgram.org US/CAN $6.95 Tree of Life Marula Oil in Africa www.herbalgram.org Herb Pharm’s Botanical Education Garden PRESERVING THE FULL-SPECTRUM OF NATURE'S CHEMISTRY The Art & Science of Herbal Extraction At Herb Pharm we continue to revere and follow the centuries-old, time- proven wisdom of traditional herbal medicine, but we integrate that wisdom with the herbal sciences and technology of the 21st Century. We produce our herbal extracts in our new, FDA-audited, GMP- compliant herb processing facility which is located just two miles from our certified-organic herb farm. This assures prompt delivery of freshly-harvested herbs directly from the fields, or recently HPLC chromatograph showing dried herbs directly from the farm’s drying loft. Here we also biochemical consistency of 6 receive other organic and wildcrafted herbs from various parts of batches of St. John’s Wort extracts the USA and world. In producing our herbal extracts we use precision scientific instru- ments to analyze each herb’s many chemical compounds. However, You’ll find Herb Pharm we do not focus entirely on the herb’s so-called “active compound(s)” at fine natural products and, instead, treat each herb and its chemical compounds as an integrated whole. -
Outline of Angiosperm Phylogeny
Outline of angiosperm phylogeny: orders, families, and representative genera with emphasis on Oregon native plants Priscilla Spears December 2013 The following listing gives an introduction to the phylogenetic classification of the flowering plants that has emerged in recent decades, and which is based on nucleic acid sequences as well as morphological and developmental data. This listing emphasizes temperate families of the Northern Hemisphere and is meant as an overview with examples of Oregon native plants. It includes many exotic genera that are grown in Oregon as ornamentals plus other plants of interest worldwide. The genera that are Oregon natives are printed in a blue font. Genera that are exotics are shown in black, however genera in blue may also contain non-native species. Names separated by a slash are alternatives or else the nomenclature is in flux. When several genera have the same common name, the names are separated by commas. The order of the family names is from the linear listing of families in the APG III report. For further information, see the references on the last page. Basal Angiosperms (ANITA grade) Amborellales Amborellaceae, sole family, the earliest branch of flowering plants, a shrub native to New Caledonia – Amborella Nymphaeales Hydatellaceae – aquatics from Australasia, previously classified as a grass Cabombaceae (water shield – Brasenia, fanwort – Cabomba) Nymphaeaceae (water lilies – Nymphaea; pond lilies – Nuphar) Austrobaileyales Schisandraceae (wild sarsaparilla, star vine – Schisandra; Japanese -
Morpho-Anatomical Study of Stevia Rebaudiana Roots Grown in Vitro and in Vivo
Revista Brasileira de Farmacognosia 27 (2017) 34–39 ww w.elsevier.com/locate/bjp Original Article Morpho-anatomical study of Stevia rebaudiana roots grown in vitro and in vivo a a a b c Rafael V. Reis , Talita P.C. Chierrito , Thaila F.O. Silva , Adriana L.M. Albiero , Luiz A. Souza , d a,b a,b,∗ José E. Gonc¸ alves , Arildo J.B. Oliveira , Regina A.C. Gonc¸ alves a Programa de Pós-graduac¸ ão em Ciências Farmacêuticas, Universidade Estadual de Maringá, Maringá, PR, Brazil b Departamento de Farmácia, Universidade Estadual de Maringá, Campus Universitário, Maringá, PR, Brazil c Departamento de Biologia, Universidade Estadual de Maringá, Campus Universitário, Maringá, PR, Brazil d Programa de Mestrado em Promoc¸ ão da Saúde, Centro Universitário de Maringá, Maringá, PR, Brazil a r a b s t r a c t t i c l e i n f o Article history: Stevia rebaudiana (Bertoni) Bertoni, Asteraceae, is used as a food additive because its leaves are a source Received 16 May 2016 of steviol glycosides. There are examples of tissue culture based on micropropagation and phytochemical Accepted 14 August 2016 production of S. rebaudiana leaves but there are few studies on adventitious root culture of S. rebaudiana. Available online 7 October 2016 More than 90% of the plants used in industry are harvested indiscriminately. In order to overcome this situation, the development of methodologies that employ biotechnology, such as root culture, provides Keywords: suitable alternatives for the sustainable use of plants. The aim of this study was to compare morpho- Stevia rebaudiana anatomical transverse sections of S. -
Nutritional and Medicinal Properties of Stevia Rebaudiana
Review Article Curr Res Diabetes Obes J Volume 13 Issue 4 - July 2020 Copyright © All rights are reserved by Fasiha Ahsan DOI: 10.19080/CRDOJ.2020.13.555867 Nutritional and Medicinal Properties of Stevia Rebaudiana Fasiha Ahsan*, Shahid Bashir and Faiz-ul-Hassan Shah University Institute of Diet and Nutritional Sciences, The University of Lahore, Pakistan Submission: June 25, 2020; Published: July 16, 2020 *Corresponding author: Fasiha Ahsan, PhD Scholar, University Institute of Diet and Nutritional Sciences, The University of Lahore, Pakistan Abstract Researches on new molecules with the least toxic effects and better potency is on its way and more attention is being given upon medicinal plants for forcing away the above problems. Medicinal plants have been recognized as potential drug candidates. Stevia, a natural sweetener with medicinal properties and also having nutritional, therapeutic and industrial importance is being used all over the world. Stevia rebaudiana leaves are usually referred to as candy, sweet and honey leaves. Diterpene glycosides are responsible for its high sweetening potential of leaves. The phytochemical properties of bioactive chemicals present in stevia leaves are involves in maintaining the physiological functions of human body. Paper also highlights the importance of nutritional aspects of dried stevia leaves, metabolism of stevia, effects of it consumption on human health and clinical studies related to stevia ingestion. Various medicinal properties of stevia leaves discussed in paper like anti-hyperglycemia, anti-oxidative, hypotensive, nephro-protective, hepato protective, antibacterial and antifungal. Basic purpose of this review to understand the medicinalKeywords: potential Stevia; Diabetes;of stevia and Phytochemicals; its acceptance Medicinal as a significant plant; Steviol;raw material Nutrition; for human Disorders diet. -
Chromosomal and Morphological Studies of Diploid and Polyploid Cytotypes of Stevia Rebaudiana (Bertoni) Bertoni (Eupatorieae, Asteraceae)
Genetics and Molecular Biology, 27, 2, 215-222 (2004) Copyright by the Brazilian Society of Genetics. Printed in Brazil www.sbg.org.br Research Article Chromosomal and morphological studies of diploid and polyploid cytotypes of Stevia rebaudiana (Bertoni) Bertoni (Eupatorieae, Asteraceae) Vanessa M. de Oliveira1, Eliana R. Forni-Martins1, Pedro M. Magalhães2 and Marcos N. Alves2 1Universidade Estadual de Campinas, Instituto de Biologia, Departamento de Botânica, Campinas, SP, Brazil. 2Universidade Estadual de Campinas, Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Campinas, SP, Brazil. Abstract In this study, we examined the chromosome number and some morphological features of strains of Stevia rebaudiana. The chromosomes were analyzed during mitosis and diakinesis, and the tetrad normality and pollen viability were also assessed. In addition, stomata and pollen were measured and some plant features were studied morphometrically. All of the strains had 2n = 22, except for two, which had 2n = 33 and 2n = 44. Pairing at diakinesis wasn=11II for all of the diploid strains, whereas the triploid and tetraploid strains hadn=11III andn=11IV, respectively. Triploid and tetraploid plants had a lower tetrad normality rate than the diploids. All of the strains had inviable pollen. Thus, the higher the ploidy number, the greater the size of the pollen and the stomata, and the lower their number per unit area. The triploid strain produced the shortest plants and the lowest number of inflorescences, whereas the tetraploid strain had the largest leaves. Analysis of variance revealed highly significant differences among the strains, with a positive correlation between the level of ploidy and all of the morphological features examined. -
Ndhf Sequence Evolution and the Major Clades in the Sunflower Family KI-JOONG KIM* and ROBERT K
Proc. Natl. Acad. Sci. USA Vol. 92, pp. 10379-10383, October 1995 Evolution ndhF sequence evolution and the major clades in the sunflower family KI-JOONG KIM* AND ROBERT K. JANSENt Department of Botany, University of Texas, Austin, TX 78713-7640 Communicated by Peter H. Raven, Missouri Botanical Garden, St. Louis, MO, June 21, 1995 ABSTRACT An extensive sequence comparison of the either too short or too conserved to provide adequate numbers chloroplast ndhF gene from all major clades of the largest of characters in recently evolved families. A number of alter- flowering plant family (Asteraceae) shows that this gene native genes have been suggested as potential candidates for provides -3 times more phylogenetic information than rbcL. phylogenetic comparisons at lower taxonomic levels (9). The This is because it is substantially longer and evolves twice as phylogenetic utility of one of these, matK, has been recently fast. The 5' region (1380 bp) ofndhF is very different from the demonstrated (10). Comparison of sequences of two chloro- 3' region (855 bp) and is similar to rbcL in both the rate and plast genomes (rice and tobacco), however, revealed only two the pattern of sequence change. The 3' region is more A+T- genes, rpoCl and ndhF, that are considerably longer and evolve rich, has higher levels of nonsynonymous base substitution, faster than rbcL (9, 11). We selected ndhF because it is longer and shows greater transversion bias at all codon positions. and evolves slightly faster than rpoCl (11), because rpoCl has These differences probably reflect different functional con- an intron that may require additional effort in DNA amplifi- straints on the 5' and 3' regions of nduhF. -
Climate Change and Cultural Response in the Prehistoric American Southwest
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln USGS Staff -- Published Research US Geological Survey Fall 2009 Climate Change and Cultural Response In The Prehistoric American Southwest Larry Benson U.S. Geological Survey, [email protected] Michael S. Berry Bureau of Reclamation Follow this and additional works at: https://digitalcommons.unl.edu/usgsstaffpub Benson, Larry and Berry, Michael S., "Climate Change and Cultural Response In The Prehistoric American Southwest" (2009). USGS Staff -- Published Research. 725. https://digitalcommons.unl.edu/usgsstaffpub/725 This Article is brought to you for free and open access by the US Geological Survey at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in USGS Staff -- Published Research by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. CLIMATE CHANGE AND CULTURAL RESPONSE IN THE PREHISTORIC AMERICAN SOUTHWEST Larry V. Benson and Michael S. Berry ABSTRACT Comparison of regional tree-ring cutting-date distributions from the southern Col- orado Plateau and the Rio Grande region with tree-ring-based reconstructions of the Palmer Drought Severity Index (PDSI) and with the timing of archaeological stage transitions indicates that Southwestern Native American cultures were peri- odically impacted by major climatic oscillations between A.D. 860 and 1600. Site- specifi c information indicates that aggregation, abandonment, and out-migration from many archaeological regions occurred during several widespread mega- droughts, including the well-documented middle-twelfth- and late-thirteenth- century droughts. We suggest that the demographic response of southwestern Native Americans to climate variability primarily refl ects their dependence on an inordinately maize-based subsistence regimen within a region in which agricul- ture was highly sensitive to climate change. -
Steviol Glycosides from Stevia Rebaudiana Bertoni
0 out of 21 Residue Monograph prepared by the meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA), 84th meeting 2017 Steviol Glycosides from Stevia rebaudiana Bertoni This monograph was also published in: Compendium of Food Additive Specifications. Joint FAO/WHO Expert Committee on Food Additives (JECFA), 84th meeting 2017. FAO JECFA Monographs 20 © FAO/WHO 2017 1 out of 21 STEVIOL GLYCOSIDES FROM STEVIA REBAUDIANA BERTONI Prepared at the 84th JECFA (2017) and published in FAO JECFA Monographs 20 (2017), superseding tentative specifications prepared at the 82nd JECFA (2016) and published in FAO JECFA Monographs 19 (2016). An ADI of 0 - 4 mg/kg bw (expressed as steviol) was established at the 69th JECFA (2008). SYNONYMS INS No. 960 DEFINITION Steviol glycosides consist of a mixture of compounds containing a steviol backbone conjugated to any number or combination of the principal sugar moieties (glucose, rhamnose, xylose, fructose, arabinose, galactose and deoxyglucose) in any of the orientations occurring in the leaves of Stevia rebaudiana Bertoni. The product is obtained from the leaves of Stevia rebaudiana Bertoni. The leaves are extracted with hot water and the aqueous extract is passed through an adsorption resin to trap and concentrate the component steviol glycosides. The resin is washed with a solvent alcohol to release the glycosides and the product is recrystallized from methanol or aqueous ethanol. Ion exchange resins may be used in the purification process. The final product may be spray-dried. Chemical name See Appendix 1 C.A.S. number See Appendix 1 Chemical formula See Appendix 1 Structural formula Steviol (R1 = R2 = H) is the aglycone of the steviol glycosides. -
Rapid and Economic Determination of 13 Steviol Glycosides In
pubs.acs.org/JAFC Article Rapid and Economic Determination of 13 Steviol Glycosides in Market-Available Food, Dietary Supplements, and Ingredients: Single-Laboratory Validation of an HPLC Method Zhiyan Liu, Kangzi Ren, Ye Feng, Tommy Uong, Scott Krepich, and Hong You* Cite This: https://dx.doi.org/10.1021/acs.jafc.0c03453 Read Online ACCESS Metrics & More Article Recommendations *sı Supporting Information ABSTRACT: Steviol glycosides, obtained from leaves of Stevia rebaudiana Bertoni (stevia) or produced via bioconversion and biosynthesis, are diterpenes used by the food/dietary supplement industry as zero-calorie sweeteners derived from natural sources. JECFA 2017 is the most updated international standardized method but it runs for 80 min per sample with suboptimal separations on several critical pairs for its high-performance liquid chromatography-ultraviolet (HPLC-UV) determination. We developed and validated a rapid and economic HPLC-UV method using the superficially porous particle column to determine 13 steviol glycosides (stevioside, dulcoside A, rubusoside, steviobioside, and rebaudioside A−F, I, M, and N). Baseline separation with a minimum resolution of 1.5 for 13 steviol glycosides was achieved within only 14 min of separation time. The hydrocarbon stationary phase with additional steric interactions from the isobutyl side chains on the C18 ligand was shown to be an important contributor to chromatographic selectivity of several critical pairs of steviol glycosides. The method was proven to perform suitably on columns from three different manufacturers and two HPLC instruments. The method was further used to perform a single-lab validation on eight food and supplement products with multiple matrices. The results ranged from 0.05% w/w rebaudioside A for a hard-candy finished product to 100.8% w/w purity for a rebaudioside M raw ingredient. -
Sieving Methodology for Recovery of Large Cultigen Pollen
An improved methodology for the recovery of Zea mays and other large crop pollen, with implications for environmental archaeology in the Neotropics Article Accepted Version Whitney, B. S., Rushton, E. A. C., Carson, J. F., Iriarte, J. and Mayle, F. E. (2012) An improved methodology for the recovery of Zea mays and other large crop pollen, with implications for environmental archaeology in the Neotropics. The Holocene, 22 (10). pp. 1087-1096. ISSN 0959-6836 doi: https://doi.org/10.1177/0959683612441842 Available at http://centaur.reading.ac.uk/32925/ It is advisable to refer to the publisher’s version if you intend to cite from the work. See Guidance on citing . To link to this article DOI: http://dx.doi.org/10.1177/0959683612441842 Publisher: Sage Publications All outputs in CentAUR are protected by Intellectual Property Rights law, including copyright law. Copyright and IPR is retained by the creators or other copyright holders. Terms and conditions for use of this material are defined in the End User Agreement . www.reading.ac.uk/centaur CentAUR Central Archive at the University of Reading Reading’s research outputs online An improved methodology for the recovery of Zea mays and other large crop pollen, with implications for environmental archaeology in the Neotropics Bronwen S. Whitney1*, Elizabeth A. C. Rushton2, John F. Carson3,1, Jose Iriarte4, and Francis E. Mayle3 1School of Geosciences, The University of Edinburgh, Drummond St., Edinburgh EH8 9XP, UK 2School of Geography, The University of Nottingham, University Park, Nottingham NG7 2RD, UK 3School of Archaeology, Geography and Environmental Science, The University of Reading, Whiteknights, Reading RG6 6AB, UK 4Department of Archaeology, College of Humanities, University of Exeter, Exeter EX4 4QE, UK *Corresponding author, email: [email protected] tel: +44(0)131 650 9140 fax: +44(0)131 650 2524 A.