Tag: "algae" at biology news
Scientists sequence genome of kind of organism central to biosphere's carbon cycle
...of a diatom, part of a family of microscopic ocean algae
that are among the Earth's most important inhabitants, has yielded surprising insights about the way they may be using nitrogen, fats and silica in order to thrive. Diatoms, most of which are far too tiny to see without magnification, are neverthele...
Plants will not save us from greenhouse gases
...y biologist Graham Bell, looked at the response of algae
to high carbon dioxide concentrations. Their findings showed that the plants could not adapt to high carbon dioxide conditions. This disproves the previous assumption that plants can take up extra carbon dioxide in the environment. According to Bell,...
UAF scientists discover new marine habitat in Alaska
...une of a single bed of rhodoliths, colorful marine algae
that resemble coral, was made near Knight Island i...hodoliths belong to a group known as coralline red algae
that deposit calcium carbonate within their cell walls to form hard structures that closely resemble...
Sugar-coated sea urchin eggs could have sweet implications for human fertility
...chains in sea urchins are similar to some found in algae
that have a variety of possible medical uses, as anticoagulants and antiviral agents, for example. The research was supported by Friday Harbor Labs, the State University of New York at Stony Brook, the National Science Foundation, and the Norwegian ...
NASA satellites detect 'glow' of plankton in black waters
...griculture. These nutrients cause blooms of marine algae
called phytoplankton. During extremely large phytoplankton blooms where the algae
is so concentrated the water may appear black, some phytoplankton die, sink to the ocean bottom and ...
Testing the fitness of biological clocks
...tely disrupt the biological clocks in one group of algae
and to damp the frequency of the clocks in a secon...wth of the microscopic plants. They then mixed the algae
with disrupted clocks with algae
with normally functioning clocks. When the mixture was placed in an...
Goals unlikely to protect Gulf of Mexico shrimp industry
...poxia occurs when increased nitrogen runoff causes algae
blooms, which sink into bottom waters and are decomposed by bacteria, a process that consumes oxygen. The warm fresh water from the Mississippi and Atchafalaya rivers also layer atop the colder salty Gulf waters, preventing atmospheric oxygen from ge...
Gulf of Maine marine ecosystem may have entered new phase
...s known as "urchin barrens" where only low growing algae
could survive. In turn, the harvesting of urchins during the 1990s has led to the re-emergence of kelp beds and the dominance of crabs and lobsters. The report cites an experiment in which adult urchins were stocked in an area to see if they ...
Researchers review evolutionary history of modern algae
...ant Professor Antonietta Quigg, who specializes in algae
ecology and chemistry, examined modern phytoplankt...and check if that idea works." She says since some algae
do very well with increase carbon dioxide and some do poorly, the evolutionary history will tell, wi...
Impact of Earth's rising atmospheric carbon dioxide found in world oceans
... effects of decreased calcification in microscopic algae
and animals could alter marine food webs and, combined with other changes in salinity, temperature and nutrients, could substantially alter the diversity and productivity of the oceans....
Rare, tiny find in West Australian waters
... to 5000 metres. Its food range extends from ocean algae
to tiny shellfish. It consumes prey in the same manner as a spider, remineralising part of the 'ocean snow' and helping to sustain other small forms of marine life. Ms Paterson has searched the scientific literature and believe this is the first samp...
JGI, VBI help unravel sudden oak death & soybean disease
...or water molds, they are relatives of such aquatic algae
as diatoms and kelp. The pathogens survive as thick-walled spores that can persist in soil for years. Of the 59 recognized Phytophthora species, it was P. infestans that was responsible for the mid-19th century Irish potato famine. "The s...
Need sex? It's probably something about stress
Heat turns colonial algae
into hotties. When algae
find themselves in hot water, the normally asexual organisms get all stressed out and turn sexual. ...
Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say
...y plants or animals to affect the atmosphere. Even algae
hadn't evolved yet. Primitive photosynthetic microbes were around and may have played a role in the generation of methane and minor usage of carbon dioxide. As long as rapid continental weathering continued, carbonate was deposited on the ...
Corals can reestablish symbiosis with algae from their environments after bleaching
...orals can develop new symbiotic relationships with algae
from their environments after they've undergone bl...c relationship they develop with the single-celled algae
called zooxanthellae (zo-zan-thel-y), which live inside them and help supply them with food. ...
Study helps satellites measure Great Lakes' water quality
...ight also aid studies of global climate change. As algae
flourishes in the five freshwater lakes every summ...vironmental engineering and geodetic science. When algae
levels are too high, water takes on a foul taste and odor that isnt easily removed by traditional tr...
Gene maps of simpler life forms point the way to human disease gene
...a and an additional 150 for basal bodies. Studying algae
allows Dutcher's group to isolate and manipulate c...computer look for all the gene matches between the algae
and humans," Dutcher explains. "Next, we brought in the genetic code for Arabadopsis, a land plant, ...
Motion that powers sperm provides key to unravelling rare genetic disorder
...la the researchers compared the genetic make up of algae
and C. elegans, a worm commonly used in genetic research, with the family of vegetables that the give rise to broccoli, sprouts and cabbage and known not to contain flagella and cilia. Results identified 688 genes not present in the Arabidopsis fam...
Increased atmospheric carbon dioxide promotes algal growth
...t unlike terrestrial plants, submerged plants like algae
will not show any response to an increase of atmospheric carbon dioxide. This view may be biased by a neglect of the effects of the plants themselves on the water chemistry. In the June issue of Ecology Letters , Schippers, Lrling and Scheffer of t...
Traditional fishing destroys corals - new research
...ion between the density of starfish, the amount of algae
covering the reef and the degree of fishing activi...ly disappear and in space of one year the cover of algae
increased from one fifth of the reef to over half. Lower population densities of starfish, a greater...
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