The code for survival: Cells fight stress by reprogramming a system of RNA modifications
(PhysOrg.com) -- When cells are exposed to life-threatening stresses, they take quick action to save themselves. Among other defenses, they start manufacturing proteins that perform critical tasks such as ...
Yeast 'rewired' to mate when starving
Scientists unravel more details of plant cell-wall construction
(PhysOrg.com) -- One big challenge in converting plants to biofuels is that the very same molecules that keep plants standing up make it hard to break them down. Now scientists at the U.S. Department of Energy's ...
New research reveals details of microbe's extraordinary maintenance and repair system
(PhysOrg.com) -- Scientists have discovered how a network of repair proteins enables bacteria to prioritise the repair of the most heavily used regions of the DNA molecules that carry the instructions necessary ...
Critics raise doubts on NASA's arsenic bacteria
Great balls of evolution: Microbiologists evolve microorganisms to cooperate in new way
University of Massachusetts Amherst microbiologists Derek Lovley, Zarath Summers and colleagues report in the Dec. 2 issue of Science that they have discovered a new cooperative behavior in anaerobic bacteria, known as int ...
New findings detail how virus prepares to infect cells
(PhysOrg.com) -- Researchers have learned the atomic-scale arrangement of proteins in a structure that enables a virus to invade and fuse with host cells, showing precisely how the structure morphs with changing ...
Mystery dissolves with calcium pump discovery
Geo-microbiologists from Arizona State University have solved a long-standing conundrum about how some photosynthetic microorganisms, endolithic cyanobacteria, bore their way into limestone, sand grains, mussel ...
Study shows that blood stem cells are influenced by their offspring
A new study by researchers at the Walter and Eliza Hall Institute in Melbourne, Australia, has shown that mature blood cells can communicate with, and influence the behaviour of, their stem cell 'parents'.
Finger-trap tension stabilizes cells' chromosome-separating machinery
(PhysOrg.com) -- Scientists have discovered an amazingly simple way that cells stabilize their machinery for forcing apart chromosomes. Their findings are reported Nov. 25 in Nature.
Deep-sea algae may be 'living fossils'
Microsensors offer first look at whether cell mass affects growth rate (w/ Video)
(PhysOrg.com) -- University of Illinois researchers are using a new kind of microsensor to answer one of the weightiest questions in biology the relationship between cell mass and growth rate.
Scientists turn skin into blood (w/ Video)
(PhysOrg.com) -- In an important breakthrough, scientists at McMaster University have discovered how to make human blood from adult human skin.
Researchers reshape basic understanding of cell division
By tracking the flow of information in a cell preparing to split, Johns Hopkins scientists have identified a protein mechanism that coordinates and regulates the dynamics of shape change necessary for division of a single ...