Earth Science News  





. Scientists Discover New Life Forms In The Arctic Ocean

The picture shows a picobiliphyta cell under a fluorescent microscope. The cell nucleus is coloured in blue, the cytoplasm in green and the plastide, which is responsible for photosynthesis, is coloured in red. The cell measures two by five micrometres. Photo courtesy Fabrice Not/Station Biologique de Roscoff
by Staff Writers
Quebec City, Canada (SPX) Jan 15, 2007
An international team of scientists including Universite Laval biologist Connie Lovejoy has discovered new life forms in the Arctic Ocean. The team's findings are reported in the January 12 edition of the journal Science.

The researchers have discovered a new group of microscopic organisms, which they have baptized "picobiliphytes": pico because of their extremely small size, measured in millionths of a meter, bili because they contain biliproteins, highly fluorescent substances that transform light into biomass, and phyte meaning they are plants.

The discovery came from carefully analyzing DNA sequences belonging to vast communities of micro-organisms living in the ocean. "There was one group of sequences that just didn't line up with any of the known groups," explains Dr. Lovejoy. "In fact, the divergence of this group from known organisms is as great as the difference between land plants and animals," adds the scientist.

Over this last year the team has been scouring data bases, verifying their results and applying new techniques to their samples. They can now confirm that these new life forms are abundantly distributed throughout northern seas. They have yet to be brought into culture, but can be seen using advanced microscopy techniques.

"It's a very exciting discovery," comments Dr. Lovejoy. "The ocean covers 70% of planet earth and we are only now coming to appreciate its rich and complex biodiversity."

The other members of the team responsible for this discovery are Fabrice Not, Khadidja Romari, and Daniel Vaulot from Universite Pierre et Marie Curie (France); Klaus Valentin, Kerstin Tobe, and Linda Medlin from the Alfred Wegener Institute for Polar and Marine Research (Germany); and Ramon Massana from Institut de Cičncies del Mar (Spain).

Related Links
Department of biology at Universite Laval
Darwin Today At TerraDaily.com

Largest Flower Evolved From Family Of Much Tinier Blooms
Boston MA (SPX) Jan 15, 2007
The plant with the world's largest flower -- typically a full meter across, with a bud the size of a basketball -- evolved from a family of plants whose blossoms are nearly all tiny, botanists write this week in the journal Science. Their genetic analysis of rafflesia reveals that it is closely related to a family that includes poinsettias, the trees that produce natural rubber, castor oil plants, and the tropical root crop cassava.

.
Get Our Free Newsletters Via Email
  



  • NGC Tool Designed To Save Lives And Protect Property During Severe Weather
  • Japan And US Working On North Korea Emergency Plan
  • USJFCOM Bringing Together Multiple Agencies For Multinational Experiment 5
  • Congress Says FEMA Reform Lagging

  • Lloyd's Insurance Boss Demands Action On Climate Change
  • Nigerian President Calls For International Action On Climate Change
  • Climate Protection Tops EU Plan
  • Melted Sea Ice Absorbs Carbon Dioxide Offsetting Some GW Impact

  • QuikScat Shows Rough Seas And Atmospheric Conditions At Time Of Two Java Sea Disasters
  • Japanese Scientists Discover Huge Undersea Lava Plateau
  • Northrop Grumman To Develop System Requirements For USAF Alternate Infrared Sat System
  • Digitalglobe Announces Ball Aerospace Is Building Worldview 2 Satellite

  • Indonesian And China Sign Bio-Fuel Deal
  • ICP Solar And Coleman Products Announce Launch Of Remote Solar Charger Line
  • Ted Turner Launches New Clean Energy Business Venture
  • Honeywell Awarded Unique Solar Project

  • UN Body Says EU Ban On Wild Bird Imports Won't Help Stop Bird Flu
  • AIDS Plan Faces Deadly Deficit
  • Avian Flu Unlikely To Spread Through Water Systems
  • Zimbabwe Plans Huge Increase In AIDS Drugs Rollout This Year

  • Scientists Discover New Life Forms In The Arctic Ocean
  • Largest Flower Evolved From Family Of Much Tinier Blooms
  • Mystery As Hundreds Of Birds Fall From Sky In Australia
  • Research Finds Urban Sprawl Not So Bad For Wildlife

  • Unlocking Pollutants' Effects
  • Stricken Ship On Collision Course With British Gas Rig
  • Fires Fuel Mercury Emissions
  • China Fast Becoming Biggest Electronic Waste Dump On Earth

  • Earliest Evidence Of Modern Humans In Europe Discovered By International Team
  • Hybrid Embryos Legal; Licensing Deferred
  • What Memories Are Made Of
  • Cancer-Killing Invention Also Harvests Stem Cells

  • The content herein, unless otherwise known to be public domain, are Copyright 1995-2006 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA PortalReports are copyright European Space Agency. All NASA sourced material is public domain. Additionalcopyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement