Quantcast

Latest Organelles Stories

Bacteria Flagella Utilize Evolutionary Foible
2013-07-09 08:58:42

redOrbit Staff & Wire Reports - Your Universe Online Marine microbes change swimming directions with a sideways flick of their lone flagellum, a type of high-speed controlled failure first documented in 2011 as a unique swimming stroke but whose underlying mechanism had eluded researchers until now. Bacteria swim by rotating the helical, hair-like flagella that extend from their unicellular bodies. Some bacteria, such as the Escherichia coli (E. coli) living in the human gut, have...

2013-07-08 12:09:26

UConn researchers shed new light on how cellular transport systems harness energy to perform their work inside the cell Using highly sensitive fluorescent probes, a team of scientists from the University of Connecticut has captured the never-before-seen structural dynamics of an important protein channel inside the cell's primary power plant – the mitochondrion. The UConn team's study found that the channel complex - known as the translocase of the inner mitochondrial...

2013-06-25 23:31:51

The Life, Earth and Health Sciences Magazine EurekaMag.com provides 36 million references including 11 million summaries in the basic and applied biological, geographical and agricultural sciences. While this content base has now been expanded to include 180,868 newly published references on ultrastructural studies, all content is now available through a newly developed mobile site. Mannheim, Germany (PRWEB) June 25, 2013 The Science Website EurekaMag.com has newly published 181 thousand...

African Starlings Change Color 10 Times Faster Than Their Ancestors
2013-06-11 10:45:12

University of Akron It's not going to happen while you're peering through your binoculars, but African glossy starlings change color more than 10 times faster than their ancestors and even their modern relatives, according to researchers at The University of Akron and Columbia University. And these relatively rapid changes have led to new species of birds with color combinations previously unseen, according to the study funded in part by the National Science Foundation and published today...

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...

Research Reveals Clues About Molecules And Cilia
2013-05-13 11:15:34

Johns Hopkins Medicine Experiments at Johns Hopkins have unearthed clues about which protein signaling molecules are allowed into hollow, hair-like "antennae," called cilia, that alert cells to critical changes in their environments. Researchers found that the size limit for entry is much greater than previously thought, allowing most of a cell's proteins into cilia. The researchers believe that the specific collection of proteins in each cilium, customized to the needs of each cell...

2013-04-30 13:57:08

NIH-funded study reveals protein, fatty molecules and cellular energy work together during endocytosis Cells ingest proteins and engulf bacteria by a gymnastic, shape-shifting process called endocytosis. Researchers at the National Institutes of Health revealed how a key protein, dynamin, drives the action. Endocytosis lets cells absorb nutrients, import growth factors, prevent infections and accomplish many other vital tasks. Yet, despite decades of research, scientists don't fully...

2013-04-26 14:11:20

Proteins, unlike diamonds, aren't forever. And when they wear out, they need to be degraded in the cell back into amino acids, where they will be recycled into new proteins. Researchers at Rockefeller University and the Howard Hughes Medical Institute have identified a new way that the cell's protein recycler, the proteasome, takes care of unwanted and potentially toxic proteins, a finding that has implications for treating muscle wasting, neurodegeneration and cancer. The consensus among...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
Related