NCT: Letters, Aug. 20, 2008 Aug 21, 2008
"That was my point! You're slow, but it does eventually start to sink in!Everyone agrees that sperms and eggs are not human persons, but they are undeniably human life.So the issue is not "when does LIFE begin," but since we all agree that becoming a human PERSON is different from being a human life, the question is when does human life become a human PERSON.And I LOVED "former con" at 1:13 p.m., noting that if human life begins at fertilization, when does one from a pair of identical twins... (North County Times)
Planetary discoveries fuel hopes of astronomers and alien-life seekers Jun 26, 2008
After all, they said, life arose here relatively quickly, maybe 800 million years after Earth's condensational birth - and then stayed unicellular for the next three billion-plus years. Astronomers have high hopes for the Kepler spacecraft to be launched in February. (International Herald Tribune)
A New Target To Fight Sleeping Sickness May 21, 2008
The disease, which is always fatal in the absence of treatment, is caused by a unicellular parasite called Trypanosoma, which is transmitted by the bite of the tsetse fly. Existing treatment is expensive, toxic and difficult to administer in the field. (Science Daily)
Architecture For Fundamental Processes Of Life May 14, 2008
"Our team systematically analyzed the interactions of proteins of bakers yeast, a unicellular organism confirmed to provide insight into fundamental processes shared by most living cells including those of humans," explained Prof. Michnick. (Science Daily)
Cell biology: The cellular hullabaloo May 8, 2008
They are, after all, far more complicated organisms than the unicellular types under his microscope. In very simple cells we have shown for sure that a single stochastic event can lead to different phenotypes, Xie says. (Nature News Service)
Microbiological advances point away from Darwin Mar 20, 2008
e. chemicals non-living, to unicellular, to multicellulal etc ... The theory stated that today we see no transitional stages of this "quantum leap" evolution I mentioned (because of the slower pace present today), but it was emphatically stated that the fossil record would one day provide evidence for this "quantum leap" evolution necessary to arrive at today's plethora of complex organisms from unicellular species. (Longview Daily News, WA)
Genome Of Marine Organism Tells Of Humans' Unicellular Ancestors Feb 20, 2008
"Choanoflagellates are the closest living unicellular relatives of animals and, as such, can help us learn about our history and the history of life on Earth, which has been dominated by one-celled organisms," said King, an assistant professor of integrative biology and of molecular and cell biology, and a 2005 MacArthur "genius" Award winner. "They help shed light on the biology and genome content of the unicellular organisms from which we evolved." ... "Choanoflagellates really are a unique... (Science Daily)
Cellular memory hints at the origins of intelligence Jan 24, 2008
Learning and memory abilities associated with a brain or, at the very least, neuronal activity have been observed in protoplasmic slime, a unicellular organism with multiple nuclei. When the amoeba Physarum polycephalum is subjected to a series of shocks at regular intervals, it learns the pattern and changes its behaviour in anticipation of the next one to come, according to a team of researchers in Japan. (Nature News Service)
In diatom, scientists find genes that may level engineering hurdle Jan 22, 2008
MADISON Denizens of oceans, lakes and even wet soil, diatoms are unicellular algae that encase themselves in intricately patterned, glass-like shells. Curiously, these tiny phytoplankton could be harboring the next big breakthrough in computer chips. (EurekAlert!)
New Peptide Communication Factor Enabling Bacteria To 'Talk To Each Other' Discovered Nov 2, 2007
Bacteria are traditionally considered unicellular organisms. However, increasing experimental evidence indicates that bacteria seldom behave as isolated organisms. (Science Daily)
'Chlamy' genome holds clues for renewable energy, the environment and human health Oct 13, 2007
The genome also provides a glimpse back through time to when all plants and animals were unicellular and used flagella to swim. When they became multicellular, plants put down roots and lost their flagella while animals retained flagella on certain kinds of cells, including sperm and cilia on some cells in the lungs, kidneys and eyes. (EurekAlert!)
Immunity In Social Amoeba Suggests Ancient Beginnings Aug 9, 2007
The other is to look at unicellular organisms to determine if they have this same kind of immune signaling pathway. "If none of the early diverging organisms that never became multicellular developed this kind of signaling system, it would subtly strengthen our argument," he said. (Science Daily)
is coming to the US. The only detail is how much the rich and neocons are going to whine about it before it gets here. More... Jul 6, 2007
If you truly believe that life came from non-life billions of years ago with lightning striking primordial soup to form the first unicellular organism that eventually evolved over billions of years into the variety of life forms you see today, forming the male and counterpart female of the various species, and through chance and circumstance organisms became more and more complex and produced humanity that is capable of destroying all of life 50 times over in a nuclear war, then I'd like to talk... (North County Times)
Sigma gains rights to DNA modification technologies Jun 13, 2007
Epigenetics is used to refer to features of unicellular and multicellular organisms -- chromatin and DNA modifications -- that are stable over rounds of cell division but do not involve changes in the underlying DNA sequence of the organism. "Sigma-Aldrich has identified epigenetics as a growing area of interest and research for heritable diseases such as cancer, Alzheimer's and many others," Keith Jolliff, director of genomics and functional genomics at Sigma-Aldrich, said in a statement. (St. Louis Business Journal, MO)
Cold Climate Produced By Algae Contributed To Onset Of Multicellular Life Feb 16, 2007
This enabled diffusive breathing of primitive multicellulars which were larger than their unicellular counterparts ... This in turn increased the atmospheric carbon dioxide level and ended the severe glaciations and the reign of unicellular algae, initiating the development of a modern-type climate ... For unicellular organisms the respiratory surface is simply. (Science Daily)
Longevity By A Nose -- Or Odorant Receptor Feb 6, 2007
The heady odor of yeast paste partially counteracts the life-lengthening effects of nutrient restriction on fruit flies -- leading Baylor College of Medicine researchers to believe that the fly's perception that there is still food around may trigger a different metabolic state than one that exists when nutrients are limited. In a report that appears online today in the journal Science Express, Dr. Scott Pletcher, assistant professor in the Huffington Center on Aging and Department of Human and... (Science Daily)
Supercomputer Provides Super Tool For Simulation Of Cell Division Feb 3, 2007
Virginia Tech researchers in computer science and biology have used the university's supercomputer, System X, to create models and algorithms that make it possible to simulate the cell cycle -- the processes leading to cell division. They have demonstrated that the new mathematical models and numerical algorithms provide powerful tools for studying the complex processes going on inside living cells. (Science Daily)
Organization Halts Clinical Trial For Potential Microbicide For Preventing HIV Infection Feb 3, 2007
Family Health International (FHI) announced that it has halted a Phase III clinical trial of cellulose sulfate a potential microbicide being tested for HIV prevention in women in Nigeria. Simultaneously, CONRAD, a health research organization based in Arlington, Virginia, has announced it is halting its Phase III clinical trial of cellulose sulfate at sites in Benin, India, South Africa, and Uganda. (Science Daily)
Stealth Technology Maintains Fitness After Sex: How 'DNA Parasites' Can Increase Spread Of Antibiotic Resistance Jan 16, 2007
Pathogens can become superbugs without their even knowing it, research published today in Science shows. Stealth' plasmids - circular 'DNA parasites' of bacteria that can carry antibiotic-resistance genes - produce a protein that increases the chances of survival and spread of the antibiotic-resistant strain. (Science Daily)
Ocean Nitrogen Fixation: New Findings Blow A Decade Of Assumptions Out Of The Water Jan 12, 2007
(August 26, 2004) -- Large, nutrient-poor expanses of the open ocean are getting a substantial nitrogen influx from an abundant group of unicellular organisms that "fix," or chemically alter, nitrogen into a form usable. . (Science Daily)
Genetic Variation May Reduce Alzheimer's Risk Jan 10, 2007
Adults with a genetic variation enabling them to express higher levels of fetal hemoglobin may have a reduced risk of Alzheimer's disease, researchers say. Dr. William D. Hill, neuroscientist at the Medical College of Georgia and Veterans Affairs Medical Center in Augusta. (Science Daily)
Did We 'Kill' Martian Microbes? New Analysis Of Viking Mission Points To Life On Mars Jan 9, 2007
Microorganisms are often illustrated using single-celled, or unicellular organisms ... -- Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular) ... For unicellular organisms the respiratory surface is simply. (Science Daily)
Roadworks On The Motorways Of The Cell Dec 30, 2006
A cell is a busy place. In a permanent rush hour, molecules are transported along a dynamic motorway system made up of filaments called microtubules. (Science Daily)
Oldest Animal Fossils May Have Been Bacteria Dec 22, 2006
The oldest-known animal eggs and embryos, whose first pictures made the cover of Nature in 1998, were so small they looked like bugs -- which, it now appears, they may have been. Lead author Jake Bailey, a graduate student in earth sciences at USC College. (Science Daily)
Hairpins For Switches: Artificial RNA Ligands Differentiate Between On And Off States Of Riboswitches Dec 14, 2006
-- The cell is the structural and functional unit of all living organisms, and is sometimes called the "building block of life." Some organisms, such as bacteria, are unicellular, consisting of a single. . (Science Daily)
Leading Cause Of U.S. Food-borne Illness Makes Its Own Pathway Through Cells Dec 14, 2006
In spite of our long and painful relationship with Campylobacter jejuni, we are just starting to answer basic questions about the bug that is the leading cause of bacterial food-borne illness in the United States, and one of the most common causes of diarrhea worldwide. The Centers for Disease Control estimate that "campylobacterioisis" strikes 2. (Science Daily)
Unfolding The Genetic Code: First Molecular Simulation Of A Long DNA Strand Shows Unexpected Flexibility Dec 9, 2006
It turns out that sequencing the human genome -- determining the order of DNA building blocks -- has not completely cracked the code of how DNA directs various cellular processes. In addition to the sequence of the base pairs, the instructions are in the packaging -- how DNA is folded within a cell. (Science Daily)
Natural Radioactivity Could Provide Microbes In The Deep Biosphere With Vitality Dec 7, 2006
In the upper layers of sediment, the researchers counted up to 100 million unicellular organisms per millilitre; deeper, in the 35 million year old sediments on the Earth s crust, they still found one million microorganisms ... Microorganisms are often illustrated using single-celled, or unicellular organisms. (Science Daily)
Newly Discovered Immune Defense May Be Impaired In Cystic Fibrosis Airways Dec 7, 2006
For unicellular organisms the respiratory surface is simply. . (Science Daily)
Found: The Apple Gene For Red Dec 7, 2006
CSIRO researchers have located the gene that controls the colour of apples -- a discovery that may lead to bright new apple varieties. (Photo Credit: Scott Bauer / Courtesy of USDA/Agricultural Research Service). (Science Daily)
Bio-inspired Assembly Of Nanoparticle Building Blocks Nov 28, 2006
Chemists at Rice University have discovered how to assemble gold and silver nanoparticle building blocks into larger structures based on a novel method that harkens back to one of nature's oldest known chemical innovations -- the self-assembly of lipid membranes that surround every living cell. V-shaped amphiphilic molecules containing gold nanoparticles form cylindrical micelles when exposed to water. (Science Daily)
Decoded Sea Urchin Genome Shows Surprising Relationship To Humans Nov 11, 2006
The Sea Urchin Genome Sequencing Project (SUGSP) Consortium, led by the Human Genome Sequencing Center at Baylor College of Medicine (BCM-HGSC) in Houston, announced today the decoding and analysis of the genome sequence of the sea urchin, Strongylocentrotus purpuratus. A group of adult purple sea urchins spawns in a kelp bed off the California coast. (Science Daily)
Microbes Compete With Animals For Food By Making It Stink Nov 11, 2006
Microbes may compete with large animal scavengers by producing repugnant chemicals that deter higher species from consuming valuable food resources -- such as decaying meat, seeds and fruit, a new study suggests. Many more animals, such as this stone crab, were attracted to freshly thawed bait than rotten fish in a crab trap experiment conducted by Georgia Tech researchers. (Science Daily)
Green Plants Share Bacterial Toxin Nov 9, 2006
A toxin that can make bacterial infections turn deadly is also found in higher plants, researchers at UC Davis, the Marine Biology Laboratory at Woods Hole, Mass. and the University of Nebraska have found. (Science Daily)
Social Amoebas' Family Tree Reveals Evolutionary Clues Oct 30, 2006
-- Amoeba (also spelled ameba) is a genus of protozoa that moves by means of temporary projections called pseudopods, and is well-known as a representative unicellular ... -- Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular). (Science Daily)
Diversity Promotes Cooperation Among Microbes Oct 25, 2006
Understanding how cooperation evolves and is maintained represents one of evolutionary biology's thorniest problems. This stems from the fact that freeloading cheats will evolve to exploit any cooperative group that doesn't defend itself, leading to the breakdown of cooperation. (Science Daily)
Giant Insects Might Reign If Only There Was More Oxygen In The Air Oct 13, 2006
The delicate lady bug in your garden could be frighteningly large if only there was a greater concentration of oxygen in the air, a new study concludes. The study adds support to the theory that some insects were much larger during the late Paleozoic period because they had a much richer oxygen supply, said the study's lead author Alexander Kaiser. (Science Daily)
Algae provide new clues to cancer Oct 13, 2006
In the unicellular green alga Chlamydomonas reinhardtii bursts of rapid division cycles produce clusters of daughter cells, a process that is controlled by the retinoblastoma (RB) tumor suppressor pathway. The. (EurekAlert!)
Nanotechnology To Stop Weaponized Anthrax In Its Tracks Oct 10, 2006
Picture a spider web coated with sugar. But instead of luring in unsuspecting creatures, this spider web pulls in deadly anthrax spores, rendering them harmless. (Science Daily)
Race Against Extinction: Are Marine Organisms Able To Adapt To Ocean Acidification? Sep 29, 2006
Coccolithophorids -- unicellular planktonic algae of only a few thousandths of millimetres -- developed malformations of their calcium carbonate skeleton when grown experimentally in seawater of varying acidity. In contrast, fossils of the same species dating back to periods of various carbon dioxide concentrations had intact skeletons. (Science Daily)
Biologists Probe The Machinery Of Cellular Protein Factories Sep 15, 2006
Proteins of all sizes and shapes do most of the work in living cells, and the DNA sequences in genes spell out the instructions for making those proteins. The crucial job of reading the genetic instructions and synthesizing the specified proteins is carried out by ribosomes, tiny protein factories humming away inside the cells of all living things. (Science Daily)
Flood-tolerant California Rice Offering Relief To Poor Farmers Worldwide Aug 24, 2006
-- Amoeba (also spelled ameba) is a genus of protozoa that moves by means of temporary projections called pseudopods, and is well-known as a representative unicellular. . (Science Daily)
Biologist Trying To Crack Communication Code Of Proteins Aug 23, 2006
Dr. Ray Larsen is trying to learn a second language. The Bowling Green State University biologist wants to crack the communication code of proteins, especially the ones whose "talking" aids and abets disease. (Science Daily)
Space Shuttle Experiment Shows Live Cells Influence Growth Of Nanostructures Jul 25, 2006
Posted: July 24, 2006. Far above the heads of Earthlings, arrays of single-cell creatures are circling Earth in nanostructures. (Science Daily)
Study Shows That Parasites Form The Thread Of Food Webs Jul 14, 2006
Microorganisms are often illustrated using single-celled, or unicellular organisms ... -- Water moulds or Oomycetes are a group of filamentous, unicellular protists, physically resembling fungi. (Science Daily)
Cellectis and Bayer CropScience Enter Into a Collaboration to use Meganuclease Technology in Plants Jun 30, 2006
In nature, Meganucleases come from unicellular organisms, bacteria, yeasts, algae and some plant organelles. Natural Meganucleases operate in many organisms to make "cut " changes in the genetic program at the site where their target sequence (very specific combinations of 12 to 30 base pairs) lies naturally or has been previously inserted into genomic DNA. Cellectis has developed a unique expertise in combining custom or natural Meganucleases with specially engineered targeting DNA matrices... (Canada Newswire)
Bacteria Have Their Own Immune System Protecting Against Outside DNA Jun 10, 2006
-- Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular) ... Most are microscopic and unicellular, with a relatively simple cell structure lacking a cell nucleus, and organelles such as. (Science Daily)
Researchers Study Gene Regulation In Insects Apr 29, 2006
Posted: April 28, 2006. MANHATTAN, KAN. -- Susan Brown, an associate professor of biology at Kansas State University, is interested in how evolution generates so much diversity in insects shapes and forms. (Science Daily)
Wisconsin Scientists Discover A Master Key To Microbes' Pathogenic Lifestyles Apr 29, 2006
-- Yeasts constitute a group of single-celled (unicellular) fungi, a few species of which are commonly used to leaven bread, ferment alcoholic beverages, and even drive experimental fuel cells ... -- Water moulds or Oomycetes are a group of filamentous, unicellular protists, physically resembling fungi ... Microorganisms are often illustrated using single-celled, or unicellular organisms. (Science Daily)
African Sleeping Sickness Breakthrough Apr 7, 2006
-- Water moulds or Oomycetes are a group of filamentous, unicellular protists, physically resembling fungi. They are microscopic, absorptive organisms that reproduce both sexually and asexually and are. (Science Daily)
Researchers Seek Answers To Combat TB Epidemic; Solution May Lie In A Protective Protein Mar 26, 2006
Posted: March 25, 2006. Most Americans think of tuberculosis as a disease of the past, but with HIV and drug-resistant strains fueling epidemics in India and Africa, TB kills someone every six seconds across the world. (Science Daily)
NASA's Cassini Discovers Potential Liquid Water On Enceladus Mar 11, 2006
-- Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular). This set of characteristics is distinct from. (Science Daily)
Researchers Take New Approach To Defeating Gram-negative Bugs Mar 10, 2006
Most are microscopic and unicellular, with a relatively simple cell structure lacking a cell nucleus, and organelles such as. . (Science Daily)
Hopkins Researchers Discover Unsuspected Genetic Switch That Turns Off An Oxygen-poor Cellâs Combustion Engine And Turns On Its Electric One Mar 9, 2006
-- Yeasts constitute a group of single-celled (unicellular) fungi, a few species of which are commonly used to leaven bread, ferment alcoholic beverages, and even drive experimental fuel cells. Most. (Science Daily)
New Method For Identifying Microbes: Genomic 'Tags' Quickly Distinguish Pathogens From Harmless Relatives Mar 4, 2006
Microorganisms are often illustrated using single-celled, or unicellular organisms. . (Science Daily)
