Diatoms in the world's oceans exhale more oxygen than all the world's rainforests. These tiny drifting algae generate about 20 percent of the oxygen produced on Earth each year and invisibly recycle gases enveloping our planet.
Earth Sciences
Jun 15, 2015
0
30
The remains of tiny creatures found deep inside a mountaintop glacier in Peru are clues to the local landscape more than a millennium ago, according to a new study by Rice University, the University of Nebraska-Lincoln and ...
Earth Sciences
Jun 1, 2015
0
69
A team of researchers, including Rensselaer professor Morgan Schaller, has used mathematical modeling to show that continental erosion over the last 40 million years has contributed to the success of diatoms, a group of tiny ...
Earth Sciences
Mar 23, 2015
0
32
(Phys.org) —Oregon State University researchers are combining diatoms, a type of single-celled photosynthetic algae, with nanoparticles to create a sensor capable of detecting miniscule amounts of protein or other biomarkers.
Bio & Medicine
Sep 1, 2014
0
2
(Phys.org) —A team of researchers from Wellington University in New Zealand has found that volcanoes that erupt beneath bodies of water can cause widespread dispersal of diatoms found in their beds. In their paper published ...
The seas around Antarctica can, at times, resemble a garden. Large-scale experiments where scientists spray iron into the waters, literally fertilizing phytoplankton, have created huge man-made algal blooms. Such geoengineering ...
Earth Sciences
Jun 12, 2013
1
0
(Phys.org) —Scientists have found unexpectedly high concentrations of opal, a mineral containing silicate, in marine sediments during the transition periods from ice ages to warm phases. The explanation as to what caused ...
Earth Sciences
Apr 10, 2013
4
0
(Phys.org)—Diatoms (unicellular photosynthetic organisms) reproduce through asexual cell division alternating with short periods of sexual reproduction. A German and Belgian team has now determined that pheromones play ...
Biochemistry
Dec 14, 2012
0
0
(PhysOrg.com) -- A glow coming from the glassy shell of microscopic marine algae called diatoms could someday help us detect chemicals and other substances in water samples. And the fact that this diatom can glow in response ...
Biochemistry
Mar 23, 2012
0
0
Every morning when the sun comes up, the ocean ground is radically cleaned. As soon as the first rays of sunlight find their way into the water, the microalgae "Nitzschia cf pellucida" start their deadly 'morning hygiene'. ...
Biochemistry
Jan 30, 2012
0
0
