Sentences with phrase «cyanobacteria in»

Precipitation of CaCO3more» catalyzed by the growth and physiology of cyanobacteria in the Genus Synechococcus represents a potential mechanism for sequestration of atmospheric CO2 produced during the burning of coal for power generation.

Species of cyanobacteria in the genera Synechococcus and Synechocystis are known to be the catalysts of a phenomenon called «whitings», which is the formation and precipitation of fine - grained CaCO3 particles.

catalyzed by the growth and physiology of cyanobacteria in the Genus Synechococcus represents a potential mechanism for sequestration of atmospheric CO2 produced during the burning of coal for power generation.

They observed a regular circadian rhythm when they kept altered cyanobacteria in constant darkness, with a constant supply of sugar.

Foreign researchers honored as the 31st KIA laureates include: Prof. Eric Vivier (France) for his research on harnessing innate immunity against cancer; Prof. Jianfang Wang (Hong Kong, China) for his research on Colloidal Plasmonic Metal Nanocrystals; Prof. Majed Chergui (Switzerland) for his research on unravelling the fundamentals of solar; Prof. Katharina Gaus (Australia) for her research on Single molecule imaging of T cell receptor signaling; and Prof. Dr. Burkhard Büdel (Germany) for his research on Role of lichens and cyanobacteria in biological soil crusts.

The host institute IOW dedicated its work to the effects on cyanobacteria in the Baltic Sea.

stromatolite A type of layered rock that forms when cyanobacteria in water create huge communities.

That might not sound like very much, but it represents a thousandfold increase in productivity since he first began working with the cyanobacteria in 2010.

Earth's oxygen - rich atmosphere emerged in whiffs from a kind of cyanobacteria in shallow oceans around 2.5 billion years ago, according to new research from Canadian and US scientists.

And the cycle of wet and dry phases fosters the growth of nitrogen - fixing cyanobacteria in the terraces, providing the plants with a naturally occurring source of usable nitrogen.

«To me this is exciting because you have such abundant photosynthetic cyanobacteria in the ocean,» said Feng Chen.

However, cyanobacteria in the genera Anabaena (pictured right) and Nostoc tick all the boxes.

Since 1867, scientists have recognized the fundamental partnership that produces lichens: A fungus joins with an alga or cyanobacteria in a relationship that benefits both individuals.

«I can learn from the molecular biologist in our group how phylogenic data shed new light on our understanding of the evolution of cyanobacteria in Earth history.

Not exact matches

«In its 4.6 billion years circling the sun, the Earth has harbored an increasing diversity of life forms: for the last 3.6 billion years, simple cells (prokaryotes); for the last 3.4 billion years, cyanobacteria performing ph - otosynthesis; for the last 2 billion years, complex cells (eukaryotes); for the last 1 billion years, multicellular life; for the last 600 million years, simple animals; for the last 550 million years, bilaterians, animals with a front and a back; for the last 500 million years, fish and proto - amphibians; for the last 475 million years, land plants; for the last 400 million years, insects and seeds; for the last 360 million years, amphibians; for the last 300 million years, reptiles; for the last 200 million years, mammals; for the last 150 million years, birds; for the last 130 million years, flowers; for the last 60 million years, the primates, for the last 20 million years, the family H - ominidae (great apes); for the last 2.5 million years, the genus H - omo (human predecessors); for the last 200,000 years, anatomically modern humans.»

Spirulina is a naturally occurring algae (cyanobacterium) that is typically sold in capsule, tablet or powder form.

But scientists are confident that oxygenic photosynthesis evolved only this one time in Earth's history, only in cyanobacteria, and all plants and other beings on Earth that photosynthesize coopted the development.

And photosynthesis is an evolutionary singularity, meaning it only evolved once in Earth's history — in cyanobacteria.

Biological soil crusts form in open desert areas from a highly specialized community of cyanobacteria, mosses, and lichens that cover up to 70 percent of open spaces.

But something did change about 800 million years ago, and cyanobacteria and other minute organisms in continental margin ecosystems got more phosphorus, the backbone of DNA and RNA, and a main actor in cell metabolism.

Symbiogenesis recognizes that the mitochondria [the energy factories] in animal, plant, and fungal cells came from oxygen - respiring bacteria and that chloroplasts in plants and algae — which perform photosynthesis — came from cyanobacteria.

Less volcanism led to a «nickel famine,» which led to the downfall of methanogens, which led to the rise of cyanobacteria, which led to the boom in oxygen, which led to us.

The unsolved mystery resurfaced in the PNAS cyanobacteria bloom study, which provides the first evidence for BMAA biomagnification in an aquatic food chain.

«This is probably because cyanobacteria are naturally photosynthetic — they're actually responsible for a large fraction of the photosynthesis in the ocean — and so whether the cell is energized or not is a good indication of whether it's day or night,» he says.

«When Paul Cox came out with his paper saying that cyanobacteria produce BMAA,» he says with a lingering Texan twang, «I thought, whoa, we'd better look into this because here in Florida we get some really big blooms.»

If fish eat more cyanobacteria and accumulate more BMAA in their bodies, he reasons, then the health impact on humans could well get worse.

After measuring BMAA levels in cyanobacteria blooms in the Baltic Sea and in the plankton, fish and mussels that feed on them, researchers from Stockholm University in Sweden concluded that, BMAA levels were six times higher in plankton and up to 200 times higher in some fish than in the blooms.

Other researchers have shown that molecules involved in the mammalian circadian clock are also sensitive to metabolism, but our metabolism is not so closely tied to daylight as the cyanobacteria's.

«These cyanobacteria use the entire cell body as a lens to focus an image of the light source at the cell membrane, as in the retina of an animal eye,» says University of London microbiologist Conrad Mullineaux, who helped to make the discovery.

One possibility could be related to dinoflagellates and cyanobacteria found upstream in the catchment, which might be releasing toxins similar to those that cause red tides in marine environments, says Peter Ashton, a water resources specialist at the Council for Scientific and Industrial Research in South Africa and the University of Pretoria.

An answer came when he traced the origin of the BMAA in cycad seeds to cyanobacteria growing in the plant's roots.

Constituting the foundation of the aquatic food chain, cyanobacteria are a favorite meal of fish and mollusks, which are in turn eaten by us.

More worrisome, blooms of cyanobacteria are becoming increasingly common, fueling fears that their toxic by - product may be quietly fomenting an upsurge in ALS — and possibly other neurological disorders like Alzheimer's disease and Parkinson's as well.

Brand is attempting to understand that risk by tracking how BMAA moves through the food chain in Florida waters where regular cyanobacteria blooms occur.

Commercial fishermen generally are not working in areas heavily contaminated with cyanobacteria, he notes, so the danger of exposure in the United States and Canada should be modest for those who eat typical store - bought or homegrown food and avoid drinking — as Cox puts it — «green, smelly» water.

The presumed red algae lie embedded in fossil mats of cyanobacteria, called stromatolites, in 1.6 billion - year - old Indian phosphorite.

As more phosphorus becomes available, microscopic organisms, such as nematodes, tardigrades, rotifers, algae and cyanobacteria, may become more abundant in the McMurdo Dry Valleys.

These organelles, which perform photosynthesis in green plants, are descendants of formerly free - living cyanobacteria, which are prokaryotes that lack an RNAi system.

The micrographs of the cyanobacteria, which fix free N2 the air, are taken in a fluorescence microscope with a green filter (200x magnification).

The researchers now think that cyanobacteria played a larger role than previously believed in creating phosphorites in shallow waters, thereby allowing today's scientists a unique window into ancient ecosystems.

And it is known that fixation of nitrogen from the air is in the tundra to a high degree performed by cyanobacteria associated with mosses.

In these leaves, Azolla have created a microenvironment, co-evolving with tiny bacteria called cyanobacteria for an estimated 100 million years.

Out of the vast diversity of plankton in the oceans, the worst offenders are a few species of diatoms, dinoflagellates and cyanobacteria, collectively called harmful algae.

Lake Erie has become increasingly susceptible to large blooms of toxin - producing cyanobacteria since 2002, potentially complicating efforts to rein in the problem in the wake of this year's Toledo drinking water crisis, according to a new study led by University of Michigan researchers.

David Wynn - Williams, a microbiologist for the British Antarctic Survey, studies the cyanobacteria that inhabit porous sandstone rocks in the Dry Valleys.

Wynn - Williams will soon use a mini Raman spectrometer — called a CMaRS — that he can carry into the field in his backpack to detect the fossilized pigments of ancient cyanobacteria.

«Our results suggest that current phosphorus loading targets will be insufficient for reducing the intensity of cyanobacteria blooms to desired levels, so long as the lake remains in a heightened state of bloom susceptibility,» said lead author Daniel Obenour of the U-M Water Center.

Since the detection of the toxin microcystin left nearly half a million Ohio and Michigan residents without drinking water for several days in early August, discussions of ways to prevent a recurrence have largely focused on the need to reduce the amount of phosphorus fertilizer that washes off croplands and flows into western Lake Erie to trigger harmful cyanobacteria blooms.

One possibility is that the spread of invasive quagga and zebra mussels in the lake has promoted the dominance of microcystin - producing cyanobacteria and has altered the lake's phosphorus cycle.

The paper is a technical analysis of the uncertainties involved in computer modeling studies that use the amount of phosphorus entering Lake Erie in the spring to predict the size of late - summer cyanobacteria blooms, which have grown larger since the mid-1990s.