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Tag: "vents" at biology news

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...occurs in these flanks, and yet these hydrothermal vents are largely unexplored. The flanks are deeper than the mid-ocean ridge crest. Cooling of the tectonic plates, and the impact of the ridge flank system on the chemistry of the ocean, are fundamental global-scale processes. On dives in the submersible...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...in Yellowstone hot springs, streams and geothermal vents indifferent parts of the park and during different seasons. All of theenvironments had concentrations appropriate for energy metabolism.The team used computer-generated thermodynamic models to find out ifhydrogen was indeed the principle source of en...

The secret to longevity in tubeworms

...f sulfide and sulfate fluxes in the water near the vents do not match the observed tubeworm colony size and individual longevity, leading Cordes et al. to propose that L. luymesi also uses its roots to release sulfate back to the microbial consortia from which it draws its sulfide. Without this return of s...

Researchers discover underwater volcano

...rbid due to hydrothermal activity and the vigorous vents that produce this volcanic "fog" are obscured, according to Staudigel. Although visibility from the submersible was less than 10 feet, the researchers were able to observe the unique biological community surrounding the newly formed volcanic cone. M...

Hydrogen and methane provide raw energy for life at 'Lost City'

The hydrothermal vents were miles from where anyone could have imagined. ...different from so-called black-smoker hydrothermal vents that they may provide a whole new avenue for looking for the earliest life on Earth and for signs of...

Map of life on Earth could be used on Mars

...ydrothermal systems, which include sulfurous steam vents like those which smatter the Yellowstone caldera, hydrothermal deep-sea vents, and boiling silica-depositing springs. "Is it a coincidence, then, that we have three hydrothermal habitats and three major groups of prokaryotes? We aren't sure, " she s...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...oauthors propose that methane from deep underwater vents likely provide the energy source capable of sustaining the chemical life at the observed 850-meter [approximately 2800-foot] depth. Such extreme cold-vent regions have previously been found near Monterey, California, where the phenomenon was discove...

Secrets of the deep may hold key to life on other planets

... planets. The creatures live around hydrothermal vents - incredibly hot environments in the deep sea - and are unique because they depend on bacteria living inside them for their own survival. These bacteria take their energy from hydrogen sulphide in the vent fluid. "They're among the fastest growing a...

Clear rules needed to govern deep sea bioprospecting: UNU

...ich include seamounts, cold seeps and hydrothermal vents ?the latter considered nurseries for life on Earth. "Deep sea ecosystems hold the promise of huge potential contributions to future human well-being, provide our planet with vital climate-related and other ecological services, and have much to teach...

A Father’s Day Gift: Free DNA Paternity Testing

...ich include seamounts, cold seeps and hydrothermal vents ?the latter considered nurseries for life on Earth. "Deep sea ecosystems hold the promise of huge potential contributions to future human well-being, provide our planet with vital climate-related and other ecological services, and have much to teach...

Novel protein complex enables survival in hostile environment

...th conditions are preserved ?deep-sea hydrothermal vents ?still have the ancient detoxification system. Inside a hydrothermal vent, sulfide-containing superheated water at 350 C (662 F) mixes with cold oxygen-containing water, creating cooler environments -- 48 to 94 C (118 to 200 F) -- where M. jannaschi...

Earth Rx: A microbial biotechnology prescription for global environmental health

...very nook and cranny on the globe, from geothermal vents on the ocean's floor to arctic permafrost. Now, uncovering and categorizing this abundant biodiversity is one of the chief goals of scientists in the field of microbial ecology ?and may be the key to helping the planet –by putting these rich microbia...

UF researchers develop ways to keep the bloom on the rose

...n vase. Keep roses in a cool place, away from heat vents and out of direct sunlight. The findings also can be applied to lilies and alstromeria, to keep their leaves green even after they go into a vase. Previously the leaves of these crops were susceptible to yellowing, said Nell. He anticipates that fl...

Some like it hot: Worms at deep-sea vents favor a fiery 45-55°C

...found that worms dwelling at deep-sea hydrothermal vents opt for temperatures of 45-55 degrees Celsius (113...ressures, water will not boil, so deep-sea thermal vents jet out water that remains liquid at temperatures of up to 350 degrees Celsius (662 degrees Fahrenhe...

Arctic expedition will investigate alien-like glacier

...nd living in extremely hot water around geothermal vents deep in the ocean floor but are seldom observed living in cold environments. Beauchamp, Grasby, Gleeson and U of C graduate student Marie-Eve Caron leave for the glacier on June 21. From Ottawa, they will fly to Resolute, where they will be flown to...

Otherworldly bacteria discovered two miles down

...places such as aquifers, petroleum reservoirs, and vents linked to deep-sea volcanoes. Yet these communities all depend at least in part on nutrients that can be traced back to photosynthetic plants or bacteria. The international team led by T. C. Onstott of Princeton University,* which also includes Ca...

Microbe fixes nitrogen at a blistering 92 C

...at nitrogen fixation was occurring at hydrothermal vents because vent animals had completely different nitrogen isotope ratios than non-vent deep sea animals. The work that led to FS406-22 was supported by Washington Sea Grant, based at the UW, and the NASA Astrobiology Institute. Mehta worked five years...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...area was submerged and inundated with hydrothermal vents that eventually produced a gold deposit in what is...rchaeal communities inhabiting marine hydrothermal vents on the island of Vulcano, Italy. Several species of thermophilic archaea live in these shallow water...

Ocean seep mollusks may share evolutionary history with other deep-sea creatures

...other unique chemical community similar to that in vents and seeps. Some researchers suggest that whale falls were evolutionary "stepping stones," creating new environments for seep animals to evolve into a plethora of new species. But Kiel and Little's work shows that more than three-quarters of seep mo...

Deep in the ocean, a clam that acts like a plant

...the air to build their bodies. Around hydrothermal vents deep in the ocean live communities of giant clams with no gut and no functional digestive system, depending on symbiotic bacteria to use energy locked up in hydrogen sulfide to replace sunlight. Now, the genome of this symbiont has been completely se...

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