Navigation Links
Giant deep-sea tubeworm's meal ticket comes in as a skin infection

Giant tubeworms found near hydrothermal ventsmore than a mile below the ocean surface donot bother to eat: lacking mouth and stomach,they stand rooted to one spot. Fornourishment, they rely completely onsymbiotic bacteria that live within theirbodies to metabolize the sulphurous volcanicsoup in which they both thrive.

But the microscopic larvae of these giantsare born bacteria-free, with a completedigestive system. Juveniles swim, hunt, andeat before permanently settling down andtaking up with their microbial partners. Nowthe idea that the larvae acquire theirsymbionts by eating them has beenoverturned. By collecting the giant worms'tiny spawn from traps laid on the oceanfloor, oceanographers have shown that thesulfur-eating bacteria infect the larvaethrough their skin.

Andrea Nussbaumer and Monika Bright of theUniversity of Vienna, and Charles Fisher,professor of biology at Penn State, reporttheir findings this week in the Britishjournal Nature.

Previous groups had shown that, after a larvaquits swimming and attaches itself to thebottom of the ocean near a volcanic vent, itsmouth disappears and its stomach shrinksaway, even as it grows a specialized organcalled the trophosome that houses thesymbiotic bacteria it collects. "It is anabsolutely obligate symbiosis for the worm,"Fisher explains. "If the larvae do not getthe right symbiont, they die."

The prevailing hypothesis was that theappropriate bacteria were gathered into thestomach during feeding, somehow escapeddigestion, and by remaining in the stomachcaused it to undergo metamorphosis into thetrophosome.

But those conclusions were based on a verysmall set of observations, due to the extremedifficulty of obtaining the tubeworm's larvaland juvenile stages. The only way to collectthese delicate organisms is directly from theocean floor, at 2500 meters depth, in thedeep sea vehicle Alvin. Bright invented"tubeworm artificial settlement cubes," or"baby traps" as the team calls t
'"/>

Source:Penn State


Page: 1 2 3

Related biology news :

1. A giant among minnows: Giant danio can keep growing
2. Giant insects might reign if only there was more oxygen in the air
3. Climatologists discover deep-sea secret
4. Sinkers provide missing piece in deep-sea puzzle
5. Some like it hot: Worms at deep-sea vents favor a fiery 45-55°C
6. Drug discovery team to explore newly discovered deep-sea reefs
7. Extraordinary life found around deep-sea gas seeps
8. Ocean seep mollusks may share evolutionary history with other deep-sea creatures
9. Long-lived deep-sea fishes imperiled by technology, overfishing
10. Study warns deep-sea mining may pose serious threat to fragile marine ecosystems
11. Growth in the sea comes down to a struggle for iron
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Giant deep sea tubeworm meal ticket comes skin infection

(Date:9/18/2014)... GSA Bulletin study uses tree rings to document ... Wash in northern New Mexico, USA. By determining burial ... investigators were able to precisely date arroyo sedimentary beds ... data with aerial imagery, LiDAR, longitudinal profiles, and repeat ... Arroyos are deep, oversized channels that have vertical or ...
(Date:9/18/2014)... September 18, 2014 New research into the Crimean-Congo ... a severe hemorrhagic disease in humans similar to that ... for CCHFV infection. This discovery has the potential to ... pathogen. , The research, reported in a ... and conducted by scientists at the Texas Biomedical ...
(Date:9/18/2014)... Station ever starts a "frequent flyers" program, fruit flies ... orbiting laboratory has hosted increasing numbers of fruit fly ... space station in April, and another is scheduled launch ... planned to launch in December. , Fruit flies are ... and in space. Model organisms can reveal the basis ...
Breaking Biology News(10 mins):Tree rings and arroyos 2Tree rings and arroyos 3Tree rings and arroyos 4Tree rings and arroyos 5Tree rings and arroyos 6Tree rings and arroyos 7Research milestone in CCHF virus could help identify new treatments 2Buzzing with activity: Fruit flies orbit Earth for science 2Buzzing with activity: Fruit flies orbit Earth for science 3Buzzing with activity: Fruit flies orbit Earth for science 4
... Sochi Winter Olympics including the biathlon shooting events, now is ... the use of lead shot to prevent wildlife poisoning and ... co-authored this month by a University of Guelph biologist. ... training by Olympic shooters pose a threat to birds and ...
... Plastic shopping bags, an abundant source of litter ... diesel, natural gas and other useful petroleum products, researchers ... it requires and results in transportation fuels diesel, ... ultra-low-sulfur diesels and biodiesels. Other products, such as natural ...
... know that a scarred heart cannot beat the way it ... the physical heart, at least. A team of University ... tissue into colonies of beating heart cells. Their findings could ... a heart attack. Previous work in direct reprogramming, jumping ...
Cached Biology News:Study: IOC should ban lead shot to help wildlife, water 2Plastic shopping bags make a fine diesel fuel, researchers report 2Help for a scarred heart: Scarring cells turned to beating muscle 2
(Date:9/18/2014)... September 18, 2014 ... http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has announced the addition ... Global Strategic Business Report" report ... ,This report analyzes the worldwide markets ... by the following Product Segments: Polymeric ...
(Date:9/18/2014)... , Sept. 18, 2014 Research and ... "Global and Chinese Stem Cell Industry Report, 2014-2017" ... are undifferentiated biological cells that can differentiate into specialized ... stem cells. Stem cell therapy can be applied to ... system disease), nervous system diseases, damage or lesion of ...
(Date:9/18/2014)... Sept. 18, 2014 Research and Markets ... Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market ... their offering. The global companion diagnostics ... 22.7% from 2014 to 2019. Factors such as rising ... of companion diagnostics by the pharmaceutical industry, support from ...
(Date:9/18/2014)...  MEI Pharma, Inc. (Nasdaq: MEIP ), an ... for cancer, announced today that Daniel P. Gold , ... NewsMakers in the Biotech Industry conference on Friday, ... Millennium Broadway Hotel & Conference Center in New ... be accessed at www.meipharma.com . A replay will be ...
Breaking Biology Technology:Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3
... What do Saturn and flowers have in common? , ... recognizable in the natural world. Now, at an extremely ... of Massachusetts have created a unique set of conditions ... consistently assemble themselves into these and other complex shapes. ...
... (Nasdaq: FOLD ) announced today that Stephen ... resigned from the Company,s Board of Directors effective February ... of Amicus, board since 2004. About Amicus Therapeutics ... novel, oral therapeutics known as pharmacological chaperones for the ...
... Directors wishes to confirm to Stockholders that at its meeting ... 15 with effect from February 17, 2009. This initiative ... interests of keeping stockholders and other stakeholders informed the Board ... release the company from its United States Securities and Exchange ...
Cached Biology Technology:Sophisticated nano-structures assembled with magnets 2Sophisticated nano-structures assembled with magnets 3EESTECH Inc - Release From SEC Filing 2EESTECH Inc - Release From SEC Filing 3EESTECH Inc - Release From SEC Filing 4
Mouse monoclonal [BC-4] to Aggrecan xxPEN ( Abpromise for all tested applications). entrezGeneID: 176 SwissProtID: P16112...
7G10 anti-Fasciclin III...
Rabbit polyclonal to P5 ( Abpromise for all tested applications). entrezGeneID: 10954 SwissProtID: Q14554...
Goat polyclonal to HA1 ( Abpromise for all tested applications). Antigen: Synthetic peptide: TLGSCRERQPEFV from the C terminus of human HA1. Entrez GeneID: 23526 Swiss Protein ID: O78181...
Biology Products: