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Latest Eukaryote Stories

2014-01-27 10:25:54

The evolutionary path from unicellular life to multicellularity is varied, but all lead to complex organisms In the beginning there were single cells. Today, many millions of years later, most plants, animals, fungi, and algae are composed of multiple cells that work collaboratively as a single being. Despite the various ways these organisms achieved multicellularity, their conglomeration of cells operate cooperatively to consume energy, survive, and reproduce. But how did multicellularity...

Land Life Earlier Than Thought
2013-07-22 14:37:42

Brett Smith for redOrbit.com - Your Universe Online Conventional theories have placed life on land for the last 500 million years, but a new study from a team of American and Australian researchers might push that back to 2.2 billion years. To support their claim, the scientists presented evidence in the form of tiny newly discovered fossils the size of a match head called Diskagma buttonii that were discovered in ancient soil samples. "They certainly were...

First Definitive Proof Of Bacteria-feeding Behavior In Green Algae
2013-05-24 12:41:52

[ Watch The Video Scientists Prove Green Algae´s Appetite for Bacteria ] American Museum of Natural History A team of researchers has captured images of green alga consuming bacteria, offering a glimpse at how early organisms dating back more than 1 billion years may have acquired free-living photosynthetic cells. This acquisition is thought to have been a critical first step in the evolution of photosynthetic algae and land plants, which, in turn, contributed to the increase in...

Extreme Algae Thieves Its Genes From Bacteria
2013-03-08 17:34:16

Brett Smith for redOrbit.com - Your Universe Online Some microorganisms have developed the ability to thrive in the most hostile environments on Earth, from the superheated geothermal vents to pools of toxic drainage deep underground. According to a new study in the journal Science, researchers have found evidence one of these so-called “extremophiles” steals its ability to endure extreme environments from the organisms around it. While the ability to pilfer genes from...

DNA Of Ancient Microorganisms Provide Clues On Origins Of Life
2013-03-08 11:41:26

April Flowers for redOrbit.com - Your Universe Online Important genetic clues about the history of a group of ancient microorganisms called archaea and the origins of life itself have been discovered by a team of researchers. Results of this first-of-its-kind study shed light on one of Earth's oldest life forms. "Archaea are an ancient form of microorganisms, so everything we can learn about them could help us to answer questions about the origin of life," explained William Whitman,...

2012-03-29 22:32:41

The scientists have studied the genomes of more than 500 organisms. The appearance of some specific enzymes for bacteria and eukaryotes promoted the separation of the species. All living organisms on Earth are divided into three large domains: Archaea, Bacteria and Eukarya, and from the beginning of life —more than 3,000 million years ago -, the genomes of each group have evolved towards distinct structures that have favored their separation. A study led by Lluís Ribas de...

2012-02-28 11:47:38

The major difference between plant and animal cells is the photosynthetic process, which converts light energy into chemical energy. When light isn't available, energy is generated by breaking down carbohydrates and sugars, just as it is in animal and some bacterial cells. Two cellular organelles are responsible for these two processes: the chloroplasts for photosynthesis and the mitochondria for sugar breakdown. New research from Carnegie's Eva Nowack and Arthur Grossman has opened a window...

2012-02-21 15:10:48

Genome analysis of “living fossil” sheds light on the evolution of plants Atmospheric oxygen really took off on our planet about 2.4 billion years ago during the Great Oxygenation Event. At this key juncture of our planet´s evolution, species had either to learn to cope with this poison that was produced by photosynthesizing cyanobacteria or they went extinct. It now seems strange to think that the gas that sustains much of modern life had such a distasteful beginning....

2011-11-18 07:08:12

Stowers researchers gain new insight into the chromosome separation process Each time a cell divides -- and it takes millions of cell divisions to create a fully grown human body from a single fertilized cell -- its chromosomes have to be accurately divvied up between both daughter cells. Researchers at the Stowers Institute for Medical Research used, ironically enough, the single-celled organism Saccharomyces cerevisiae -- commonly known as baker's yeast -- to gain new insight into the...


Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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