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https://www.readbyqxmd.com/read/28634256/molecular-systematics-and-historical-biogeography-of-maianthemum-s-s
#1
Changkyun Kim, Kenneth M Cameron, Joo-Hwan Kim
PREMISE OF THE STUDY: Understanding the underlying mechanisms for the evolution of intercontinental disjunct patterns has long fascinated botanists. We present a molecular phylogenetic reconstruction of Maianthemum s.l. (including Smilacina) with a focus on Maianthemum s.s. species, which have a disjunct distribution between Eurasia and North America. Within this evolutionary framework, we clarify the systematic classification and biogeographical history of Maianthemum s.s. METHOD: Data from two nuclear and five chloroplast DNA regions were analyzed using the programs PAUP*, RAxML, MrBayes, BEAST, and RASP...
June 20, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28545387/impact-of-e-publication-changes-in-the-international-code-of-nomenclature-for-algae-fungi-and-plants-melbourne-code-2012-did-we-need-to-run-for-our-lives
#2
Nicky Nicolson, Katherine Challis, Allan Tucker, Sandra Knapp
BACKGROUND: At the Nomenclature Section of the XVIII International Botanical Congress in Melbourne, Australia (IBC), the botanical community voted to allow electronic publication of nomenclatural acts for algae, fungi and plants, and to abolish the rule requiring Latin descriptions or diagnoses for new taxa. Since the 1st January 2012, botanists have been able to publish new names in electronic journals and may use Latin or English as the language of description or diagnosis. RESULTS: Using data on vascular plants from the International Plant Names Index (IPNI) spanning the time period in which these changes occurred, we analysed trajectories in publication trends and assessed the impact of these new rules for descriptions of new species and nomenclatural acts...
May 25, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28463019/fatal-cardiac-glycoside-poisoning-due-to-mistaking-foxglove-for-comfrey
#3
I-Lin Wu, Jiun-Hao Yu, Chih-Chuan Lin, Chen-June Seak, Kent R Olson, Hsien-Yi Chen
CONTEXT: Accidental ingestion of foxglove (Digitalis purpurea) can cause significant cardiac toxicity. We report a patient who ingested foxglove mistaking it for comfrey and developed refractory ventricular arrhythmias. The patient died despite treatment with digoxin-specific antibody fragments (DSFab) and veno-arterial extracorporeal membrane oxygenation (VA-ECMO). CASE DETAILS: A 55-year-old woman presented to the emergency department with nausea, vomiting and generalized weakness eight hours after drinking "comfrey" tea...
May 2, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28457574/botanists-in-lithuania-during-the-michurinist-campaign
#4
Aurika Ričkienė
The meeting of the Lenin All-Union Academy of Agricultural Sciences (VASKhNIL) that occurred from July 31 to August 7, 1948, declared Michurinism to be the only "correct theory" of biology in the Soviet Union. As of that moment, Michurinist biology officially took center stage in Soviet scientific institutions, and it was further developed over the next fifteen years. Scientists from all of the former Soviet Republics participated in the Michurinist campaign. In Lithuania, this campaign started in the autumn of 1948...
April 27, 2017: Endeavour
https://www.readbyqxmd.com/read/28314174/key-developmental-transitions-during-flower-morphogenesis-and-their-regulation
#5
REVIEW
Doris Wagner
The arrangement of flowers on flowering stems called inflorescences contributes to the beauty of the natural world and enhances seed yield, impacting species survival and human sustenance. During the reproductive phase, annual/monocarpic plants like Arabidopsis and most crops form two types of lateral structures: indeterminate lateral inflorescences and determinate flowers. Their stereotypical arrangement on the primary inflorescence stem determines the species-specific inflorescence architecture. This architecture can be modulated in response to environmental cues to enhance reproductive success...
March 15, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28224292/dejun-yu-a-patriotic-botanist-and-his-contributions
#6
Hong Jiang
No abstract text is available yet for this article.
February 21, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28168124/geography-shapes-the-phylogeny-of-frailejones-espeletiinae-cuatrec-asteraceae-a-remarkable-example-of-recent-rapid-radiation-in-sky-islands
#7
Mauricio Diazgranados, Janet C Barber
BACKGROUND: The páramo ecosystem, located above the timberline in the tropical Andes, has been the setting for some of the most dramatic plant radiations, and it is one of the world's fastest evolving and most diverse high-altitude ecosystems. Today 144+ species of frailejones (subtribe Espeletiinae Cuatrec., Asteraceae) dominate the páramo. Frailejones have intrigued naturalists and botanists, not just for their appealing beauty and impressive morphological diversity, but also for their remarkable adaptations to the extremely harsh environmental conditions of the páramo...
2017: PeerJ
https://www.readbyqxmd.com/read/28091370/hellen-gelband-botanist-turned-policy-guru-in-global-health
#8
COMMENT
Richard Lane
No abstract text is available yet for this article.
January 7, 2017: Lancet
https://www.readbyqxmd.com/read/28025284/flower-development-of-goniorrhachis-marginata-reveals-new-insights-into-the-evolution-of-the-florally-diverse-detarioid-legumes
#9
Gerhard Prenner, Domingos Cardoso
BACKGROUND AND AIMS: The study of floral morphology and ontogeny and the re-investigation of existing data help to uncover potential synapomorphic characters and foster our understanding of phylogenetic relationships that rely primarily on molecular analyses. Goniorrhachis marginata is a monotypic caesalpinioid legume (Leguminosae) that shows some interesting floral features, such as a long hypanthium and regular Rosaceae-like flowers. We studied the ontogeny and morphology of the flowers in detail and present our results in a broad phylogenetic context...
February 2017: Annals of Botany
https://www.readbyqxmd.com/read/28018378/molecular-identification-of-broomrape-species-from-a-single-seed-by-high-resolution-melting-analysis
#10
Mathieu Rolland, Aurélie Dupuy, Aude Pelleray, Philippe Delavault
Broomrapes are holoparasitic plants spreading through seeds. Each plant produces hundreds of thousands of seeds which remain viable in the soils for decades. To limit their spread, drastic measures are being taken and the contamination of a commercial seed lot by a single broomrape seed can lead to its rejection. Considering that broomrapes species identification from a single seed is extremely difficult even for trained botanists and that among all the described species, only a few are really noxious for the crops, numerous seed lots are rejected because of the contamination by seeds of non-noxious broomrape species...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27940071/analysis-of-plant-soil-seed-banks-and-seed-dispersal-vectors-its-potential-and-limits-for-forensic-investigations
#11
REVIEW
Kateřina Šumberová, Michal Ducháček
Plant seeds exhibit many species-specific traits, thus potentially being especially helpful for forensic investigations. Seeds of a broad range of plant species occur in soil seed banks of various habitats and may become attached in large quantities to moving objects. Although plant seeds are now routinely used as trace evidence in forensic practice, only scant information has been published on this topic in the scientific literature. Thus, the standard methods remain unknown to specialists in such botanical subjects as plant ecology and plant geography...
November 27, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27879262/influence-of-biological-and-social-historical-variables-on-the-time-taken-to-describe-an-angiosperm
#12
Evelin K S Cavallin, Cássia B R Munhoz, Stephen A Harris, Daniel Villarroel, Carolyn E B Proença
PREMISE OF THE STUDY: By convention, scientific naming of angiosperm species began in 1753; it is estimated that 10-20% of species remain undescribed. To complete this task before rare, undescribed species go extinct, a better understanding of the description process is needed. The South American Cerrado biodiversity hotspot was considered a suitable model due to a high diversity of plants, habitats, and social history of species description. METHODS: A randomized sample of 214 species (2% of the angiosperm flora) and 22 variables were analyzed using multivariate analyses and analysis of variance...
November 2016: American Journal of Botany
https://www.readbyqxmd.com/read/27814370/can-community-members-identify-tropical-tree-species-for-redd-carbon-and-biodiversity-measurements
#13
Mingxu Zhao, Søren Brofeldt, Qiaohong Li, Jianchu Xu, Finn Danielsen, Simon Bjarke Lægaard Læssøe, Michael Køie Poulsen, Anna Gottlieb, James Franklin Maxwell, Ida Theilade
Biodiversity conservation is a required co-benefit of REDD+. Biodiversity monitoring is therefore needed, yet in most areas it will be constrained by limitations in the available human professional and financial resources. REDD+ programs that use forest plots for biomass monitoring may be able to take advantage of the same data for detecting changes in the tree diversity, using the richness and abundance of canopy trees as a proxy for biodiversity. If local community members are already assessing the above-ground biomass in a representative network of forest vegetation plots, it may require minimal further effort to collect data on the diversity of trees...
2016: PloS One
https://www.readbyqxmd.com/read/27809237/discovery-of-bioactive-compounds-by-the-uic-icbg-drug-discovery-program-in-the-18-years-since-1998
#14
REVIEW
Hong-Jie Zhang, Wan-Fei Li, Harry H S Fong, Djaja Doel Soejarto
The International Cooperative Biodiversity Groups (ICBG) Program based at the University of Illinois at Chicago (UIC) is a program aimed to address the interdependent issues of inventory and conservation of biodiversity, drug discovery and sustained economic growth in both developing and developed countries. It is an interdisciplinary program involving the extensive synergies and collaborative efforts of botanists, chemists and biologists in the countries of Vietnam, Laos and the USA. The UIC-ICBG drug discovery efforts over the past 18 years have resulted in the collection of a cumulative total of more than 5500 plant samples (representing more than 2000 species), that were evaluated for their potential biological effects against cancer, HIV, bird flu, tuberculosis and malaria...
October 31, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27797537/from-catalepsy-to-psychical-research-the-itinerary-of-timoth%C3%A3-e-puel-1812-1890
#15
Renaud Evrard, Erika Annabelle Pratte
The physician and botanist Timothée Puel (1812-1890) lived through a pivotal period of psychology (1848-1878), between the academic prohibition of the study of animal magnetism to its disjointed recovery in hypnotism and psychical research. One of his cases of "catalepsy complicated with somnambulism" triggered a lively debate on "extraordinary neuroses" within the young Société médico-psychologique [Medico-psychological Society]. In 1874, Puel founded the Revue de psychologie expérimentale [Journal of Experimental Psychology], the first of its kind in French, which he intended as the vehicle of international interest in psychical research, the scholarly and institutionalized study of "psychism" that prepared the way for the recognition of academic psychology...
February 2017: History of Psychology
https://www.readbyqxmd.com/read/27757808/from-goethe-s-plant-archetype-via-haeckel-s-biogenetic-law-to-plant-evo-devo-2016
#16
Karl J Niklas, Ulrich Kutschera
In 1790, the German poet Johann W. v. Goethe (1749-1832) proposed the concept of a hypothetical sessile organism known as the 'Plant Archetype,' which was subsequently reconstructed and depicted by 19th-century botanists, such as Franz Unger (1800-1870) and Julius Sachs (1832-1897), and can be considered one of the first expressions of Evo-Devo thinking. Here, we present the history of this concept in the context of Ernst Haeckel's (1834-1919) biogenetic law espoused in his Generelle Morphologie der Organismen of 1866...
October 18, 2016: Theory in Biosciences, Theorie in Den Biowissenschaften
https://www.readbyqxmd.com/read/27721052/ethnomedicine-for-neonatal-jaundice-a-cross-sectional-survey-in-qom-iran
#17
Mojtaba Heydari, Hosein Heydari, Alireza Saadati, Mohammad Gharehbeglou, Javad Tafaroji, Abolfazl Akbari
ETHNOPHARMACOLOGICAL RELEVANCE: Traditional Medicine (TM) is popularly used for neonatal jaundice in Iran. OBJECTIVE: to provides evidence for characteristics of traditional medicine use in the treatment of neonatal jaundice in Qom, Iran. MATERIALS AND METHODS: Field surveys were carried out during July 2015 - August 2015 in Qom through structured questionnaire in Persian from 212 parents of children with neonatal jaundice. All plant species recorded for the treatment of neonatal jaundice were sampled...
December 4, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27698587/flora-on-occurrence-data-of-the-vascular-flora-of-mainland-portugal
#18
Ana Júlia Pereira, Ana Francisco, Miguel Porto
The Flora-On dataset currently includes 253,310 occurrence records for the class Embryopsidae (vascular plants), comprising data collated via the platform http://flora-on.pt/ relating to observation records of vascular plants across mainland Portugal. Observations are uploaded directly to the database primarily by experienced botanists and naturalists, typically on a weekly basis, and consist of geo-referenced data points for species (or infraspecific taxa) along with their date of observation and phenological state...
2016: PhytoKeys
https://www.readbyqxmd.com/read/27695890/seeds-of-doubt-mendel-s-choice-of-hieracium-to-study-inheritance-a-case-of-right-plant-wrong-trait
#19
REVIEW
Ross Bicknell, Andrew Catanach, Melanie Hand, Anna Koltunow
In this review, we explore Gregor Mendel's hybridization experiments with Hieracium , update current knowledge on apomictic reproduction and describe approaches now being used to develop true-breeding hybrid crops. From our perspective, it is easy to conclude that Gregor Mendel's work on pea was insightful, but his peers clearly did not regard it as being either very convincing or of much importance. One apparent criticism was that his findings only applied to pea. We know from a letter he wrote to Carl von Nägeli, a leading botanist, that he believed he needed to "verify, with other plants, the results obtained with Pisum"...
December 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27679499/prof-huan-yong-chen-a-leading-botanist-and-taxonomist-one-of-the-pioneers-and-founders-of-modern-plant-taxonomy-in-china
#20
Rui-Lan Huang
No abstract text is available yet for this article.
November 2016: Protein & Cell
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