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Topic: Lynn Margulis


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In the News (Tue 25 Jun 19)

  
  Book review of Lynn Margulis
Margulis follows the American biologist Ivan Wallin, who in 1927 was the first one to propose that bacteria may represent the fundamental cause of the "origin of species" (Darwin's unsolved mystery) and that the creation of a species may occur via endosymbiosis.
Margulis believes that the presence of "extra" DNA in the cell is a fossil of an ancient evolutionary event: it testifies the fusion of at least two different kinds of organisms which together formed a "eukaryiotic" cell.
Margulis emphasizes that not only the atmosphere but even the geology of our planet is due to the work of bacteria (mineral deposits have been shaped by the work of bacteria over million of years, or by the reaction with the waste gas of bacteria).
www.thymos.com /mind/margulis.html   (1770 words)

  
 Dr Lynn Margulis: Microbiological Collaboration of the Gaia Hypothesis
Effectively, Lynn Margulis contended that symbiosis, not chance mutation, was the driving force behind evolution and that the cooperation between organisms and the environment are the chief agents of natural selection -- not competition among individuals.
While the research work of Lynn Margulis in the area of cell evolution was gradually being accepted, her collaboration with Dr James Lovelock in the formulation of the Gaia Hypothesis was often viewed in a critical manner.
As it has eventuated, Lynn Margulis and others have more recently determined that the emergent themes of their collaborative research had been already partially explored and examined by independent work outside of the US and UK.
www.bibliotecapleyades.net /gaia/esp_gaia18.htm   (4545 words)

  
 UMass Amherst Office of News & Information : News Releases : UMass Amherst Biologist Lynn Margulis Awarded Honors ...
Margulis is Distinguished University Professor in the UMass biology department and an adjunct professor in the UMass department of geosciences.
Margulis will receive her honorary degree - the sixth of her career - during ceremonies at the University of Montreal culminating a year-long celebration of the 75th anniversary of that university’s department of biological sciences.
Margulis is internationally known for her research on the evolution of eukaryotic (nucleated) cells, or those of animals, plants, fungi, and protoctists.
www.umass.edu /newsoffice/newsreleases/articles/11892.php   (579 words)

  
 Lynn Margulis Biography | scit_0712_package.xml
American geneticist Lynn Margulis is noted for her investigations of the intricate, fundamental systems by which life creates and maintains itself on Earth.
Margulis was born in Chicago in 1938, the eldest of four daughters.
Margulis agreed and suggested the atmosphere is an extension of life itself.
www.bookrags.com /biography/lynn-margulis-scit-0712   (647 words)

  
 George : Lynn Margulis's talk at UWO
Margulis is known for her work developing symbiogenesis theory -- the idea that organisms come about primarily through the merger of individual and separate organisms.
Margulis, who was significantly influenced by 20th century Russian biologists like Konstantin Mereschkowsky, fleshed out her theory in her 1981 work, In Acquiring Genomes: A Theory of the Origins of Species.
During her career Margulis has had to consistently defend her ideas against the established brands of evolutionary biology, particularly the likes of Richard Dawkins and other neo-Darwinists.
www.betterhumans.com /blogs/george/archive/2006/03/27/5327.aspx   (786 words)

  
 Lynn Margulis - Science and Literature - 2001 Key West Literary Seminar   (Site not responding. Last check: 2007-10-13)
Lynn Margulis, Distinguished Professor in the Department of Geosciences at the University of Massachusetts at Amherst, has been a member of the National Academy of Sciences since 1983.
Margulis' work represents a prime example of "narratives of discovery." Her publications, spanning a wide range of scientific topics, range from professional to children's literature and include 23 authored or co-authored books.
Margulis received an A.B. (Liberal Arts) from the University of Chicago, an M.S. (Genetics-Zoology) from the University of Wisconsin and a Ph.D. (Genetics from the University of California, Berkeley.
www.keywestliteraryseminar.org /science/margulis.html   (470 words)

  
 Lynn Margulis
Lynn Margulis is Distinguished University Professor in the Department of Geosciences at the University of Massachusetts, Amherst.
She was elected to the National Academy of Sciences in 1983, received from William J. Clinton the Presidential Medal of Science in 1999.
Margulis is also acknowledged for her contribution to James E. Lovelock’s Gaia concept.
www.geo.umass.edu /faculty/margulis   (409 words)

  
 Lynn Margulis: Full Speed Ahead JAMES di PROPERZIO / University of Chicago Magazine 1feb04   (Site not responding. Last check: 2007-10-13)
On a cold November morning in Amherst, Massachusetts, Lynn Margulis, 65 years old and without a helmet, is riding her secondhand Miyata 10-speed—its two side baskets full of books, mail, and lunch—down the sidewalk to her laboratory at the University of Massachusetts, where she holds the title Distinguished University Professor in the Department of Geosciences.
Margulis lectured and worked in labs at Brandeis University before landing a part-time job in Boston University’s biology department, where she went from adjunct to full professor in ten years.
Margulis believed that an important source of methane, one of the greenhouse gases that raises the planet’s atmospheric temperature, is bacteria—found, for example, in cow rumen.
www.mindfully.org /Heritage/2004/Lynn-Margulis-Gaia1feb04.htm   (3316 words)

  
 Bates College | Citation for Lynn Margulis
Lynn Margulis, Distinguished University Professor in the Department of Geosciences at the University of Massachusetts at Amherst, and recipient of a National Medal of Science, is a daring theoretical biologist whose work encompasses the full spectrum of the sciences and philosophy.
Margulis has also advanced the view that most realms of life are microbial and are elegantly, infinitely interconnected with the larger organisms we know as animals and plants.
Lynn Margulis, you are an explorer of the foundations and frontiers of science.
www.bates.edu /x65993.xml   (356 words)

  
 Lynn Margulis and Dorion Sagan - Microbial Microcosm
Lynn Margulis and Dorion Sagan, whose work inspired and informed this article, have written extensively on biological interconnectedness.
Lynn is distinguished university professor in the biology department at the University of Massachusetts at Amherst.
Lynn is now working on the controversial theory that sperm tails in humans and other animals evolved from bacteria known as spirochetes.
www.context.org /ICLIB/IC34/Margulis.htm   (1248 words)

  
 The Third Culture - Chapter 7
LYNN MARGULIS is a biologist; Distinguished University Professor in the Department of Biology at the University of Massachusetts at Amherst; author of The Origin of Eukaryotic Cells (1970), Early Life (1981), and Symbiosis in Cell Evolution (2d ed., 1993).
Lynn Margulis: At any fine museum of natural history — say, in New York, Cleveland, or Paris — the visitor will find a hall of ancient life, a display of evolution that begins with the trilobite fossils and passes by giant nautiloids, dinosaurs, cave bears, and other extinct animals fascinating to children.
Lynn Margulis is an example of somebody who didn't follow the rules and pissed a lot of people off.
www.edge.org /documents/ThirdCulture/n-Ch.7.html   (6487 words)

  
 Untitled
Yet, Margulis has spent much of her career on the margins of respectability, battling the scientific community's lack of familiarity with the more than 200,000 known species of microbes on Earth, most of which do nothing that directly harms or helps the human race.
Margulis insists that life be seen as a planetary phenomenon whose Earthbound limits remain unexplored.
In mudflats along the coast of Baja, California where conditions bear a resemblance to those found on Earth three billion years ago, Margulis discovered a spirochete that, she believes, is like the ancestors of the "tail"- bearing cells in the human body, such as the sperm cells and those that line the lungs or oviduct.
www.nyu.edu /classes/neimark/margulis.html   (3384 words)

  
 1998 Nevada Medalist, Dr. Lynn Margulis   (Site not responding. Last check: 2007-10-13)
Margulis is internationally known for her research on the evolution of the small forms of life, including the role of bacteria in influencing and regulating biological processes and environmental conditions.
Margulis is the leading proponent of the idea that symbiogenesis, the merger of previously independent life forms, is as important to the process of evolutionary change as the more prominent "survival of the fittest" doctrine of competition among organisms.
Margulis is also a member of the Russian Academy of Natural Sciences, holds six honorary doctorates from other universities, and is fluent in Spanish and French.
news.dri.edu /nr1998/98nvmedalist.html   (455 words)

  
 Bugs in the belfry - The Boston Globe
After explaining that syphilis is a syndrome caused by the ravages of the spirochete Treponema pallidum (the lively, corkscrew-shaped bacterium pictured at right), Margulis elaborates on her own recent research into spirochetes by weighing in on the long-running debate over Nietzsche's brain.
Margulis believes it is, and as evidence points to studies of microbial mat samples taken from Eel Pond in Woods Hole and kept in a jar in a UMass-Amherst lab.
Although no typical spirochetes were found in these samples, Margulis recounts, when food and water known to support spirochete activity were added to some samples, spirochetes that could only have been been lying dormant suddenly awoke from their slumber.
www.boston.com /news/globe/ideas/articles/2004/11/28/bugs_in_the_belfry   (570 words)

  
 Amazon.com: Acquiring Genomes: A Theory of the Origins of Species: Books: Lynn Margulis,Dorion Sagan   (Site not responding. Last check: 2007-10-13)
To Margulis and Sagan, the neo-Darwinist model, which asserts random gene mutation as the source of inherited variations, is "wildly overemphasized," and to support their view, they delve deeply into the world of microbes.
Margulis went on to develop her Serial Endosymbiosis Theory, which attempted to trace the development of all creatures with nucleated cells, from yeasts to humans, to a series of genetic mergers between different kinds of organisms.
Margulis reveals a hidden side of nature, in which microbes have generated most if not all of life's metabolic machinery, in which vastly different life-forms consort in a myriad of ways, and in which the acquisition of entire genomes provides the raw material for great evolutionary leaps.
www.amazon.com /Acquiring-Genomes-Theory-Origins-Species/dp/0465043917   (2717 words)

  
 Lynn Margulis
Lynn Margulis er også opptatt av økologi og samspillet mellom organismene, noe som symbioseteorien i bunn og grunn representerer.
Lynn Margulis er uenig i dette og hevder blant annet at forskjellen mellom prokaryote og eukaryote organismer er mer grunnleggende enn de relativt subtile biokjemniske og ultrastrukturelle skillene mellom bakterier og erkebakterier.
Lynn Margulis mener videre at vi kan få et inntrykk av hvordan en meget primitiv eukaryot organisme kan ha sett ut, ved å studere de flagellatene som lever i tarmen til termitter og noen sjeldne, amerikanske kakerlakker som bor i morken ved.
folk.uio.no /klaush/MARGULIS.HTM   (4378 words)

  
 The Panda's Thumb: Lynn Margulis: "Definitely a Darwinist"
Margulis began graciously by acknowledging the conference hosts and saying, “This is the most wonderful conference I’ve ever been to, and I’ve been to a lot of conferences.” She then got to work, pronouncing the death of neo-Darwinism.
Lynn Margulis is definitely a naturalistic evolutionist, and while I believe she certainly overstates the importance of symbiogenesis, I believe she has made some very important contributions and is correct in pointing out that symbiogenesis plays a very important role in the evolutionary process.
Lynn Margulis’ theory appears to be that persistent bacterial or viral infections may become endosymbiotic, thus modifying tissues and organs.
www.pandasthumb.org /archives/2005/09/lynn_margulis_d.html   (13995 words)

  
 The Gaia Hypothesis (Section 3) - Dr Lynn Margulis
And seemingly, this was exactly where Lynn Margulis placed herself when she commenced to contend with the tradional theories of cell evolution.
As we have found in the preceeding section concerning the formulation of the Gaia Hypothesis by Dr James Lovelock, this question would have been purposefully redirected by the traditional physical sciences to the attention of counterparts in the philosophy departments, possibly the biology department or, dependent upon their cultural beliefs, possibly to the theological offices.
In conclusion of this section of the presentation concerning the current interdisciplinary developments of the Gaia Theory in relation to Dr Lynn Margulis I would have to say I respect of her usage of the word surfing (global oceanic) in such context.
www.mountainman.com.au /gaia_lyn.html   (4605 words)

  
 margulis
Using radioactively labeled nucleotides, she convincingly demonstrated the presence of DNA in the chloroplasts of Euglena gracilis, one of the curious unicellular organisms that shares both plant and animal characteristics.
Margulis wrote her first article on the endosymbiotic theory in 1967, two years after she completed her Ph.D. At the time, she was a single mother without a permanent teaching position.
Margulis points out that although both types of flagella are used for locomotion, prokaryotic and eukaryotic structures are very different.
www.msu.edu /course/lbs/145/luckie/margulis.html   (2265 words)

  
 Marlboro College : About
Her influential research proposes that symbiogenesis, the creation of a new organism from the merging of two separate organisms, is a principal and crucial force in evolution.
Margulis is the author of over 130 scientific works and several books, including the groundbreaking Symbiosis in Cell Evolution and Acquiring Genomes: A Theory of the Origins of Species (2002), co-written with her son Dorion Sagan.
Margulis earned a Ph.D. from the University of California Berkeley, a M.S. from the University of Wisconsin and an A.B. from the University of Chicago.
www.marlboro.edu /about/news/pr/2006/1/26/margulis   (342 words)

  
 review of Acquiring Genomes. A theory of the origins of species. Lynn Margulis and Dorion Sagan (2002)
Lynn Margulis' symbiosis theory is a proven theory in biology.
It is largely due to Lynn Margulis that the hypothesis that mitochondria were once free-living bacteria, is now considered a proven scientific theory in biology.
Lynn margulis is quoted saying "It was like confessing a murder when I discovered I was not a neo-Darwinist".
home.planet.nl /~gkorthof/korthof72.htm   (911 words)

  
 Amazon.com: Symbiotic Planet: A New Look at Evolution (Science Masters Series): Books: Lynn Margulis   (Site not responding. Last check: 2007-10-13)
While Margulis conveys a sense of the wondrous and intricate origins of life, many of the issues she touches upon here are more clearly and comprehensively dealt with in her other works.
In Lynn Margulis' Symbiotic Planet (A New Look at Evolution), the reader is presented with the author's ideas and theories on evolution in a style that entwines an autobiographical basis into her piece of work as well.
Margulis presents her readers with fascinating topics that she is well qualified to discuss and propose theories on, yet she fails to effectively present the information.
www.amazon.com /Symbiotic-Planet-Evolution-Science-Masters/dp/0465072712   (2647 words)

  
 Sigma Xi: The Scientific Research Society: Lynn Margulis   (Site not responding. Last check: 2007-10-13)
University of Massachusetts evolutionist Lynn Margulis played a major role in introducing the "serial endosymbiosis theory," which posited that cells with nuclei (eukaryotic cells) evolved through a symbiotic relationship with other cell types.
Margulis is also known for her long collaboration with British scientist James E. Lovelock, originator of the provocative Gaia Hypothesis, which suggests that life has had a greater influence on the evolution of the Earth than is ordinarily assumed, affecting the global environment in ways that favor the continuity of life.
Margulis is a member of the National Academy of Sciences.
www.sigmaxi.org /programs/prizes/procter.margulis.shtml   (164 words)

  
 Lynn Margulis — Illahee   (Site not responding. Last check: 2007-10-13)
Margulis overturned the historic three-kingdom classification of organisms, worked with Dr. James Lovelock to develop the Gaia Hypothesis, and first posited the endosymbiotic basis of cellular evolution.
Margulis is a Distinguished University Professor of Geosciences at the University of Massachusetts, Amherst.
Margulis is Member of the National Academy of Science, obtaining her A.B., University of Chicago in 1957, an M.S. at the University of Wisconsin in 1960, Ph.D. at the University of California, Berkeley, in 1963.
www.illahee.org /lectures/archive/lynnmargulislecture   (866 words)

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