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Newsletter 4
PHYCOLOGICAL NEWSLETTER A PUBLICATION OF THE PHYCOLOGICAL SOCIETY OF AMERICA WINTER INSIDE THIS ISSUE: 2008 PSA Meeting 1 SPRING 2008 Meetings and Symposia 2 Editor: Courses 5 Juan Lopez-Bautista VOLUME 44 Job Opportunities 11 Department of Biological Sciences Trailblazer 28: Sophie C. Ducker 12 University of Alabama Island to honor UAB scientists 18 Tuscaloosa, AL 35487 Books 19 [email protected] Deadline for contributions 23 ∗Dr. Karen Steidinger (Florida Fish and 1 2008 Meeting of Wildlife Research Institute) presenting The Phycological Society of America a plenary talk entitled “Harmful algal blooms in North America: Common risks.” New Orleand, Louisiana, USA NUMBER 27-30 July The associated mini-symposium speakers will be Dr. Leanne Flewelling (Florida Fish he Phycological Society of America (PSA) will and Wildlife Research Institute) present- hold its 2008 annual meeting on July 27-30, ing a talk entitled “Unexpected vectors of 1 T2008 in New Orleans, Louisiana, USA. The brevetoxins to marine mammals” and Dr. meeting will be held on the campus of Loyola Jonathan Deeds (US FDA Center for Food University and is being hosted by Prof. James Wee Safety and Applied Nutrition) present- (Loyola University). The meeting will kick-off with ing a talk entitled “The evolving story of an opening mixer on the evening of Sunday, 27 July Gyrodinium galatheanum = Karlodinium and the scientific program will be Monday through micrum = Karlodinium veneficum. A ten- Wednesday, 28-30 July. The PSA banquet will be year perspective.” Wednesday evening at the Louisiana Swamp Ex- hibit at the Audubon Zoo. Optional field trips are *Dr. John W. -
BOT 4404 Phycology Spring 2018
BOT 4404 Phycology Spring 2018 Instructor: Dr. Ligia Collado-Vides-(Claudia) Date: January 8th – April 23th, 2018 Lecture: Monday and Wednesday 9:00-10:15 CP 117 Lab section: Thursday 12:00- 2:50 PM, second section 3:00 to 5:50 OE 169 Office: MMC- OE 211 Office Hours: T 3:00 to 5:00 PM and W 11:00-1:00 PM By appointment only Email: [email protected] Introduction This course is an introduction to the world of algae. It will cover algal systematics, biogeography and taxonomy; will address algal physiological and ecological aspects, and will discuss algal responses to human dimension issues such as global change, nutrient cycling, biogeochemical products and toxicity with an emphasis on marine macroalgae. Course description The course employs active learning and sometimes group strategies to increase students’ engagement. Learning will be achieved through lectures, invited speakers and different learning strategies that will provide information on biological concepts as well as methods for the study and use of algae. Objectives 1- Provide students with a basic knowledge of the evolution, taxonomy and biogeography of major algal groups. This will be achieved by critically reading scientific literature and analyzing particular cases. 2- Provide students with a good understanding of the anatomical, morphological and physiological features of major algal groups. This will be achieved through active learning exercises and linking structure and function aspects of algae. 3- Prepare students to critically analyze the role of algae in ecological processes related with global change. This will be achieved by understanding algal responses to global change analyzing study cases. -
Floral Symmetry Affects Speciation Rates in Angiosperms Risa D
Received 25 July 2003 Accepted 13 November 2003 Published online 16 February 2004 Floral symmetry affects speciation rates in angiosperms Risa D. Sargent Department of Zoology, University of British Columbia, 6270 University Boulevard, Vancouver, British Columbia V6T 1Z4, Canada ([email protected]) Despite much recent activity in the field of pollination biology, the extent to which animal pollinators drive the formation of new angiosperm species remains unresolved. One problem has been identifying floral adaptations that promote reproductive isolation. The evolution of a bilaterally symmetrical corolla restricts the direction of approach and movement of pollinators on and between flowers. Restricting pollin- ators to approaching a flower from a single direction facilitates specific placement of pollen on the pollin- ator. When coupled with pollinator constancy, precise pollen placement can increase the probability that pollen grains reach a compatible stigma. This has the potential to generate reproductive isolation between species, because mutations that cause changes in the placement of pollen on the pollinator may decrease gene flow between incipient species. I predict that animal-pollinated lineages that possess bilaterally sym- metrical flowers should have higher speciation rates than lineages possessing radially symmetrical flowers. Using sister-group comparisons I demonstrate that bilaterally symmetric lineages tend to be more species rich than their radially symmetrical sister lineages. This study supports an important role for pollinator- mediated speciation and demonstrates that floral morphology plays a key role in angiosperm speciation. Keywords: reproductive isolation; pollination; sister group comparison; zygomorphy 1. INTRODUCTION The importance of pollinator-mediated selection in angiosperms is well supported by theory (Kiester et al. -
STEM Disciplines
STEM Disciplines In order to be applicable to the many types of institutions that participate in the HERI Faculty Survey, this list is intentionally broad and comprehensive in its definition of STEM disciplines. It includes disciplines in the life sciences, physical sciences, engineering, mathematics, computer science, and the health sciences. Agriculture/Natural Resources Health Professions 0101 Agriculture and related sciences 1501 Alternative/complementary medicine/sys 0102 Natural resources and conservation 1503 Clinical/medical lab science/allied 0103 Agriculture/natural resources/related, other 1504 Dental support services/allied 1505 Dentistry Biological and Biomedical Sciences 1506 Health & medical administrative services 0501 Biochem/biophysics/molecular biology 1507 Allied health and medical assisting services 0502 Botany/plant biology 1508 Allied health diagnostic, intervention, 0503 Genetics treatment professions 0504 Microbiological sciences & immunology 1509 Medicine, including psychiatry 0505 Physiology, pathology & related sciences 1511 Nursing 0506 Zoology/animal biology 1512 Optometry 0507 Biological & biomedical sciences, other 1513 Osteopathic medicine/osteopathy 1514 Pharmacy/pharmaceutical sciences/admin Computer/Info Sciences/Support Tech 1515 Podiatric medicine/podiatry 0801 Computer/info tech administration/mgmt 1516 Public health 0802 Computer programming 1518 Veterinary medicine 0803 Computer science 1519 Health/related clinical services, other 0804 Computer software and media applications 0805 Computer systems -
Alien Plants in Temperate Weed Communities: Prehistoric and Recent Invaders Occupy Different Habitats
Ecology, 86(3), 2005, pp. 772±785 q 2005 by the Ecological Society of America ALIEN PLANTS IN TEMPERATE WEED COMMUNITIES: PREHISTORIC AND RECENT INVADERS OCCUPY DIFFERENT HABITATS PETR PYSÏ EK,1,2,5 VOJTEÏ CH JAROSÏÂõK,1,2 MILAN CHYTRY ,3 ZDENEÏ K KROPA CÏ ,4 LUBOMÂõR TICHY ,3 AND JAN WILD1 1Institute of Botany, Academy of Sciences of the Czech Republic, CZ-252 43 PruÊhonice, Czech Republic 2Department of Ecology, Faculty of Science, Charles University, VinicÏna 7, CZ-128 01 Praha 2, Czech Republic 3Department of Botany, Masaryk University, KotlaÂrÏska 2, CZ-611 37 Brno, Czech Republic 4SlavõÂkova 16, CZ-130 00 Praha 3, Czech Republic Abstract. Variables determining the number of native and alien plants on arable land in Central Europe are identi®ed. Species richness of 698 samples of weed ¯oras recorded in the Czech Republic in plots of a standard size of 100 m2 in 1955±2000 was studied in relation to altitudinally based ¯oristic region, soil type, type of cultivated crop, climatic variables, altitude, year of the record, crop cover and height, and human population density in the region. Vascular plant species were classi®ed into native and alien, the latter divided in archaeophytes, introduced before AD 1500, and neophytes, introduced after this date. The use of minimal adequate models in the analysis of covariance allowed determination of the net effects of mutually correlated environmental variables. Models for particular species groups explained 33±48% of variation in species numbers and 27±51% in propor- tions; however, explanatory variables affected native species, archaeophytes, and neophytes differently. -
Extra Police Added to Patrol Campus
VolumeSPARTAN 69, Number 25 Serving the San Jose State Community Since 1934DAILY Friday, October 7, 1977 Extra police added to patrol campus By David Koenig University Policewill be on the job But McKay doesn't Like the Both McKay and Quinton said The wheels of bureaucracy spun rape, "indefinitely," according to Edward three-man idea. the number of people in the campus Attempted suspect nabbed quickly after the second campus- McKay, San Jose deputy police chief McKay said a two-man patrol is area and its location make it dif- area rape in little more than a week. and head of the department's bureau more observant" because it frees ficult for the 13-man University Police believe the same man A suspect was arrested by was arrested outside a restroom of field operations. one man to watch while the other Police to patrol. raped a sorority member this week campus police for the attempted on the first floor of Dudley "We'll keep it (the patrol) in drives. But the third man is "It's a case where the size of the and a dorm resident last week. rapes of several SJSU coeds Moorehead Hall. succeed in ap- "superfluous." city is too large," Quinton said. that area until we yesterday shortly after 5 p.m. in The victim, a SJSU graduate The result is a special three-man perpetrator, or he "Not the other way around." prehending the Putting three men in the same Dudley Moorehead Hall and the student was reportedly trapped police patrol between the hours of 5 McKay said. -
A Short History of Botany in the United States</Article
would have extended the value of the classes (the chapter on plant ecology book to the layman, the high school to my environmental biology class, for ScienceFilmstrips biology student, and even the elemen- example) in order to give students a tary-school child. fine historical overview of the particu- R. E. Barthelemy lar discipline's development in this BIOLOGY CHEMISTRY University of Minnesota country. Meanwhile I read the book PHYSICS MICROBIOLOGY Minneapolis piecemeal myself for biohistorical ap- ATOMICENERGY preciation and background; it shouldn't at one sit- ATOMICCONCEPT be read from cover to cover HISTORYAND PHILOSOPHY ting! HOWTO STUDY Never before has such a fund of di- on American botani- GENERALSCIENCE A SHORT HISTORY OF BOTANY IN THE UNITED verse information in FIGURE DRAWING STATES, ed. by Joseph Ewan. 1969. cal endeavor been brought together LABORATORYSAFETY Hafner Publishing Co., N.Y. 174 pp. one handy volume. We might hope that American zoologists, undaunted by HEALTHAND SAFETY(Campers) Price not given. Engelmann of St. having been upstaged, can shortly man- SAFETYIN AN ATOMICATTACK In 1846 George Louis, after finally receiving some fi- age to compile a comparable volume SCHOOLBUS SAFETY nancial encouragement for the pursuit for their discipline. BICYCLESAFETY of botany in the American West, opti- Richard G. Beidleman Colorado College mistically wrote that he could "hope a Downloaded from http://online.ucpress.edu/abt/article-pdf/32/3/178/339753/4442993.pdf by guest on 28 September 2021 WATERCONSERVATION Springs little more from this country for sci- Colorado ence." Today, Engelmann would be de- CARL LINNAEUS, Alvin and Virginia Ask for free folder and information lighted and amazed by what his adopted by Silverstein. -
Lesson 6: Plant Reproduction
LESSON 6: PLANT REPRODUCTION LEVEL ONE Like every living thing on earth, plants need to make more of themselves. Biological structures wear out over time and need to be replaced with new ones. We’ve already looked at how non-vascular plants reproduce (mosses and liverworts) so now it’s time to look at vascular plants. If you look back at the chart on page 17, you will see that vascular plants are divided into two main categories: plants that produce seeds and plants that don’t produce seeds. The vascular plants that do not make seeds are basically the ferns. There are a few other smaller categories such as “horse tails” and club mosses, but if you just remember the ferns, that’s fine. So let’s take a look at how ferns make more ferns. The leaves of ferns are called fronds, and brand new leaves that have not yet totally uncoiled are called fiddleheads because they look like the scroll-shaped end of a violin. Technically, the entire frond is a leaf. What looks like a stem is actually the fern’s equivalent of a petiole. (Botanists call it a stipe.) The stem of a fern plant runs under the ground and is called a rhizome. Ferns also have roots, like all other vascular plants. The roots grow out from the bottom of the rhizome. Ferns produce spores, just like mosses do. At certain times of the year, the backside of some fern fronds will be covered with little dots called sori. Sori is the plural form, meaning more than one of them. -
STRUCTURE of M.Sc. SYLLABUS (SEMESTER COURSE, 2007-2008)
STRUCTURE OF M.Sc. SYLLABUS (SEMESTER COURSE, 2007-2008) SEMESTER-I Bot/General/Theory/(101) Microbiology (45 + 5) = 50 50 Bot/General/Theory/(102) Mycology (45 + 5) = 50 50 Bot/General/Theory/(103) Phycology (45 + 5) = 50 50 Bot/General/Theory/(104 Bryology (Unit-I) (22.5 + 2.5) = 25 50 Unit-I &II) Anatomy (Unit –II) (22.5 + 2.5) = 25 Internal assessment of Theory papers (10%) Bot/General/Prac./(105) Microbiology (25) & Mycology (25) 50 Bot/General/Prac./(106) Phycology (20), Bryology (15) & Anatomy (15) 50 SEMESTER-II Bot/General/Theory/(201) Pteridology 50 Bot/General/Theory/(202) Paleobotany (Unit-I), Palynology and Reproductive Biology (Unit- 50 II). Bot/General/Theory/(203) Taxonomy of Angiosperms - & Plant Geography 50 Bot/General/Theory/(204) Cell Biology and Genetics 50 Internal assessment of Theory papers (10%) Bot/General/Prac./(205) Pteridology, Paleobotany, Palynology and Reproduction Biology 50 Bot/General/Prac./(206) Taxonomy of Angiosperms (25), Cell Biology and Genetics (25) 50 SEMESTER-III Bot/General/Theory/(301) Plant Pathology (45 + 5) = 50 50 Bot/General/Theory/(302) Gymnosperms 50 Bot/Spl./Theory/(303) Special theory – 1 (45 + 5) = 50 50 Bot/Spl./Theory/(304) Special theory – 2 (45 + 5) = 50 50 Internal assessment of Theory papers (10%) Bot/General/Prac./(305) Plant Pathology (25), Gymnosperms (25) 50 Bot/Special/Prac/(306) Special Practical 50 SEMESTER-IV Bot/General/Theory/(401) Plant Physiology (45 + 5) = 50 50 Bot/General/Theory/(402) Biochemistry (45 + 5) = 50 50 Bot/General/Theory/(403) Ecology (25), Molecular -
Understanding Cellular Signaling and Systems Biology with Precision: a Perspective from Ultrastructure and Organelle Studies In
Available online at www.sciencedirect.com Current Opinion in ScienceDirect Systems Biology Understanding cellular signaling and systems biology with precision: A perspective from ultrastructure and organelle studies in the Drosophila midgut Chiwei Xu1, Maria Ericsson2 and Norbert Perrimon1,3 Abstract [1,2]. Interactions between these cell types are critical One of the aims of systems biology is to model and discover to maintaining tissue integrity and gut function. For properties of cells, tissues and organisms functioning as a example, ISCs proliferation and differentiation are system. In recent years, studies in the adult Drosophila gut have controlled by a complex network integrating autocrine provided a wealth of information on the cell types and their and paracrine signals [3,4]; hormones derived from EEs functions, and the signaling pathways involved in the complex regulate EC physiology; and EC-derived factors signal to interactions between proliferating and differentiated cells in the ISCs following gut damage. context of homeostasis and pathology. Here, we document and discuss how high-resolution ultrastructure studies of organelle Despite the body of knowledge about signaling in the gut, morphology have much to contribute to our understanding of how we are still far from understanding how different signals the gut functions as an integrated system. are processed and integrated inside the cell to orchestrate a particular cellular function. As much of the cell is Addresses organized in membrane-bound or membrane-free organ- 1 -
Biology Has Been Taught at Bristol – As Botany and Zoology – Since Before the University Was Founded in 1909
Biology has been taught at Bristol – as Botany and Zoology – since before the University was founded in 1909. Bristol has made significant contributions to many fields, from animal cognition and medicinal plants to entomology, evolutionary Game Theory and bird flight – and the BBC Natural History Unit's proximity to the University has led to television careers for a number of graduates! In 1876, University College, the precursor to the University, appointed Dr. Frederick Adolph Leipner as Lecturer in Botany, Zoology and, amusingly, German. Leipner had trained at the Bristol Medical School, but taught botany and natural philosophy, later combining this with teaching in Vegetable Physiology at the Medical School. He became Professor of Botany in 1884 and was a founding member of the Bristol Naturalists' Society, becoming its President in 1893. Bristol today is proud of its interdisciplinary strengths and, among others, offers Joint Honours Degrees in Geology and Biology, and in Psychology and Zoology. A portent of these modern links is seen in one of the University's most notable early appointments, Conwy Lloyd Morgan, appointed as Professor of Zoology and Geology in 1884 and then – somehow fitting in service as Vice- Chancellor – becoming the first Chair in Psychology (and Ethics). Lloyd Morgan is most famous as a pioneer of the study of comparative animal cognition. He was a highly influential figure for the North American Behaviourist movement: “Lloyd Morgan's cannon” is a comparative psychologist's version of Occam's Razor whereby no behaviour should be ascribed to more complex cognitive mechanisms than strictly necessary. He was the first Fellow of the Royal Society to be elected for psychological work. -
Ultrastructure of Secretory and Senescence Phase in Colleters of Bathysa Gymnocarpa and B
Revista Brasil. Bot., V.33, n.3, p.425-436, jul.-set. 2010 Ultrastructure of secretory and senescence phase in colleters of Bathysa gymnocarpa and B. stipulata (Rubiaceae)1 EMILIO DE CASTRO MIGUEL2, DENISE ESPELLET KLEIN2,3, MARCO ANTONIO DE OLIVEIRA4 and MAURA DA CUNHA2,5 (received: December 11, 2008; accepted: June 10, 2010) ABSTRACT – (Ultrastructure of secretory and senescence phase in colleters of Bathysa gymnocarpa and B. stipulata (Rubiaceae)). Colleters are secretory structures formed by a parenchymatic axis with vascular bundles, bound by a layer of secretory palisade-like epidermis. Some studies regarding the structure of colleters have focused on secretory cells structure, but not distinguished the secretory and senescent phases. Generally, in mucilage-secreting cells such as colleters, the endoplasmic reticulum and Golgi apparatus are involved in secretion production and transport. In these study, colleters structure of Bathysa gymnocarpa K. Schum. and B. stipulata (Vell.) C. Presl. (Rubiaceae) were determined in two phases: a secretory phase and a senescence one. Samples were collected and processed by usual light and electron microscopy techniques. Studied colleters are constituted by an epidermal palisade layer and a central axis formed by parenchymatic cells with rare vascular traces. During the secretory phase, epidermal cells presented a dense cytoplasm, small vacuoles, enhanced rough and smooth endoplasmic reticulum, and a Golgi apparatus close to large vesicles. During the senescence phase epidermal cells presented a disorganized membrane system. No intact organelles or vesicles were observed. The outer cell wall exhibited similar layers to that observed during the secretory phase. The senescent phase is easily defined by the morphology of the colleters, but not well defined at subcellular level.