Recently in the Microbiology Category


How Do Bacteria Adapt?

A fundamental prerequisite for life on earth is the ability of living organisms to adapt to changing environmental conditions. Physicists at the Technical University of Munich and the University of California San Diego have now determined that the regulation mechanisms used by bacteria to adapt to different environments are based on a global control process that can be described in a single equation.

Just imagine, you are sitting on a sunny beach, contentedly letting the warm sand trickle through your fingers. Millions of sand grains. What you probably can't imagine: at the same time, billions upon billions of bacteria are also trickling through your fingers.

Every day, enough sunlight hits the Earth to power the planet many times over -- if only we could more efficiently capture all the energy.

Multicellularity--the integration of previously autonomous cells into a new, more complex organism--is one of the major transitions in evolution.

On May 11, a sealed capsule containing fungi and bacteria fell from the sky and splashed down in the Pacific Ocean. Microbiologist Kasthuri Venkateswaran could hardly wait to see what was inside it.

Viruses that infect bacteria are among the most abundant life forms on Earth. Indeed, our oceans, soils and potentially even our bodies would be overrun with bacteria were it not for bacteria-eating viruses, called bacteriophages, that keep the microbial balance of ecological niches in check.

Researchers from the J. Craig Venter Institute (JCVI) and Synthetic Genomics, Inc. (SGI) announced today the design and construction of the first minimal synthetic bacterial cell, JCVI-syn3.0.

NASA's Exposing Microorganisms in the Stratosphere (E-MIST) experiment launched to the Earth's stratosphere on the exterior of a giant scientific balloon gondola at about 8 a.m. MST on Aug. 24 from Ft. Sumner, New Mexico.

Researchers this week published a paper confirming that the waters and sediments of a lake that lies 800 meters (2,600 feet) beneath the surface of the West Antarctic ice sheet support "viable microbial ecosystems."

Capitalizing on the ability of an organism to evolve in response to punishment from a hostile environment, scientists have coaxed the model bacterium Escherichia coli to dramatically resist ionizing radiation and, in the process, reveal the genetic mechanisms that make the feat possible.