Sentences with phrase «phosphatized microbial mats»

In findings published January 10 in Science Translational Medicine, the new compound even eradicated stubborn pathogens growing together in tough - to - treat microbial mats called biofilms, which are complex communities that can be 10 to 1,000 times more tolerant to antibiotics than free - living bacteria.

Toward that end he pursued studies of small (meiofaunal) grazing animals living within microbial mats and documented the earliest appearance of animal and trace (so - called Ediacaran) fossils in late Precambrian sediments in NE Norway.

This change in grazing style may have contributed to the fragmentation of the microbial mat, which began early in the Cambrian.

They produced oxygen by photosynthesis, and sometimes the oxygen got trapped as bubbles within sticky microbial mats.

Therese Sallstedt and colleagues from University of Southern Denmark, Swedish Museum of Natural History and Stockholm University studied fossilized sediments from India, and they found round spheres in the microbial mats.

In the modern world, these sites are characterized by an unusual abundance of tube worms, bivalves (clams), molluscs, and other animals that survive on the microbial mats that grow there.

Malcolm Walter of Macquarie University in Australia discusses the evolution of microbial mats, which are preserved in fossil form as stromatolites.

Today, microbial mats only occupy marginal habitats, but in the Precambrian era these photosynthetic communities of microorganisms dominated the beds of seas and lakes.

For this study, Dr. Aude Picard and colleagues Dr. Martin Obst and Gregor Schmid went sampling microbial mats in the historical Segen Gottes silver mine (Black Forest, SW Germany) that contained twisted stalks and submitted them to pressure and temperature conditions that are typically encountered during rock formation, e.g. up to 250 °C and 140 MPa.

A microbial mat community in Octopus Spring, Yellowstone National Park, is shown courtesy of Michelle Davison.

Our ability to coordinate behavior and work collaboratively with others has allowed us to create the natural world's largest and most densely populated societies, outside of deep sea microbial mats and a few Hymenoptera mega-colonies.

They will handle rare rock samples and examine deep - sea creatures pulled up from the depths, including crustaceans, bizarre tube worms and flocculent orange and yellow microbial mats.

Microbial mats could float near the water's surface for efficient photosynthesis when a star is calm, then sink to a safe depth when a flare hits.

NASA Astrobiology Institute and Penn State Astrobiology Research Center (PSARC) Hot spring microbial mats at Yellowstone National Park, USA.

Bacteria formed microbial mats on land as early as three billion years ago.

Mix of cyanobacteria from a microbial mat that includes several filamentous forms.

In a study recently published in Frontiers in Microbiology, PNNL scientists Young - Mo Kim, Jim Fredrickson, and Tom Metz demonstrated the effect that sunlight or the absence thereof over a 24 - hour period - the diel cycle - has on the production of chemicals used as metabolites in the microbial mats of Mushroom Springs in Yellowstone National Park.

The microbial mats, which are layered accretions of microorganisms, look like slimy bright green floor mats growing in and around the hot springs.

This approach also can be applied to microbial mat and biofilm systems, where carbon isotopes can be measured at distinct layers in the system.

Microbial mat of the thermal springs Kuchiger Republic of Buryatia: species composition, biochemical properties and electrogenic activity in biofuel cell — Denis Aleksandrovich Yuriev — IOP Conference Series: Earth and Environmental Sciences

Inspired by a 2009 FCL team retreat and field trip to Mistaken Point, Newfoundland, coauthors David Jacobs, Roger Summons, David Johnston, and Marc Laflamme used models of canopy flow to explain how sticking up into the water column provided rangeomorphs, some of these earliest multicellular organisms preserved at Mistaken Point, a competitive advantage over microbial mats.

We collected samples from the microbial mats on the Dutch Wadden island Texel.

He is specialized in the ecology and diversity of cyanobacteria, other marine bacteria and microalgae, and known for his work on microbial mats and nitrogen fixation

The brilliant colors found in the spring, are the result of microbial mats which are multi-layered sheets of microorganisms, found around the edges of the mineral rich water.

Two main geomorphological forms are commonly found in continuous permafrost regions of Eastern Canada: (i) small, shallow, narrow runnel ponds formed over melting ice wedges where peat slumping occurs, and (ii) more stable, slightly larger and deeper, polygonal ponds, which are naturally linked to the active layer freeze - thaw cycles, and can be colonized by aquatic plants and microbial mats (Fig. 1).

Not exact matches

Cats do not appear to be affected by conformational differences of the pinnae, as seen with the Scottish fold.3 Excessive hair in the canal, as seen in poodles and schnauzers, can also decrease ventilation and form hair mats that retain debris and create obstructions.7 Shar - peis have stenotic canals that may be predisposed to higher humidity levels and secretions, leading to overgrowth of normal microbial inhabitants.1, 7 An increase in glandular tissue can lead to an increase in cerumen production and debris accumulation, which seems to be more common in cocker spaniels, springer spaniels, and Labrador retrievers.1, 7

In the case of the cyanobacterial mat - covered polygonal ponds on Bylot Island, the negative CO2 flux most likely resulted from high photosynthetic rates in the mats, and the modern dates for CH4 suggest that abundant labile compounds coming from a modern autochthonous pool could be the main C supply for microbial activity, including methanogenesis.