Researchers link algae to harmful estrogen-like compound in water
University of Tennessee, Knoxville, researchers have found that blue-green algae may be responsible for producing an estrogen-like compound in the environment which could disrupt the normal activity of reproductive hormones ...
Typical stress response for algae influences photosynthetic productivity
Typical research on blue-green algae, or cyanobacteria, often focuses on pampered conditions that result in a fast, high yield, but such conditions bear little resemblance to what these bacteria face in nature. ...
Champion hydrogen-producing microbe
Inside a small cabinet the size of a dorm refrigerator in one of Himadri B. Pakrasi's labs, a blue-green soup percolates in thick glass bottles under the cool light of red, blue and green LEDS.
Invisible invasive species
While Asian carp, gypsy moths and zebra mussels hog invasive-species headlines, many invisible invaders are altering ecosystems and flourishing outside of the limelight.
Eutrophication makes toxic cyanobacteria more toxic
Continued eutrophication of the Baltic Sea, combined with an ever thinner ozone layer, is favouring the toxic cyanobacterium Nodularia spumigena, reveals research from the University of Gothenburg, Sweden ...
New technique shows 50-year history of toxic algae in Lake Wingra
(PhysOrg.com) -- As public health officials worry about rising concentrations of cyanobacteria - often called blue-green algae - in lakes, scientists are concerned that a warming climate will stimulate the growth of cyanobacteria.
Oxygen production may have begun 270 million years earlier
(PhysOrg.com) -- Bacteria that produce oxygen may have evolved hundreds of millions of years earlier than previously thought, a new study into ancient rock formations in Western Australia suggests.
Using ultrasound to control toxic algal blooms
(PhysOrg.com) -- University of Adelaide researchers are investigating the use of ultrasound as an environmentally friendly and cheaper alternative to controlling blue-green algae in our fresh water supplies.
Genes as fossils: Researchers discover the DNA responsible for creating fossil-like molecules found in ancient rocks
When exactly did oxygen first appear in Earth's atmosphere? Although many physical and chemical processes are thought to be responsible for that profound transformation, scientists have tried to answer at ...
Cell division in cyanobacteria controlled by same kind of circadian rhythms that govern human sleep
(PhysOrg.com) -- A team of researchers at MIT and the University of California at San Diego has shown how cell division in a type of bacteria known as cyanobacteria is controlled by the same kind of circadian ...
Scientists discover how ocean bacterium turns carbon into fuel (w/ Video)
(PhysOrg.com) -- Reduce. Reuse. Recycle. We hear this mantra time and again. When it comes to carbon‹the "Most Wanted" element in terms of climate change‹nature has got reuse and recycle covered. However, ...
More than One: Long-Reigning Microbe Controlling Ocean Nitrogen Shares the Throne
(PhysOrg.com) -- Marine scientists long believed that a microbe called Trichodesmium, a member of a group called the cyanobacteria, reigned over the ocean's nitrogen budget.
Genome analysis of marine microbe reveals a metabolic minimalist
Flightless birds, blind cave shrimp, and other oddities suggest a "use it or lose it" tendency in evolution. In the microbial world, an unusual marine microorganism appears to have ditched several major metabolic pathways, ...
How to Find Signs of Life on Mars
By studying the signatures of fossil life on Earth, geobiologists can get a clue of what to look for when hunting for extraterrestrial life on Mars.