Navigation Links
Corals attacked by toxic seaweed use chemical 911 signals to summon help
Date:11/8/2012

rom the seaweed-coral contact area and the damaged coral but not the seaweed by itself.

"We demonstrated that the coral is emitting some signal or cue that attracts the fish to remove the encroaching seaweed," Hay said. "The fish are not responding to the seaweed itself."

Similar waters collected from a different species of coral placed in contact with the seaweed did not attract the fish, suggesting they were only interested in removing seaweed from their host coral.

Finally, the researchers obtained the chemical extract of the toxic seaweed and placed it onto nylon filaments designed to stimulate the mechanical effects of seaweed. They also created simulated seaweed samples without the toxic extract. When placed in contact with the coral, the fish were attracted to areas in which the chemical-containing mimic contacted the coral, but not to the area contacting the mimic without the chemical.

By studying the contents of the fish digestive systems, the researchers learned that one species Gobidon histrio actually eats the noxious seaweed, while the other fish apparently bites it off without eating it. In the former, consuming the toxic seaweed makes the fish less attractive to predators.

The two species of fish also eat mucus from the coral, as well as algae from the coral base and zooplankton from the water column. By defending the corals, the gobies are thus defending the home in which they shelter and feed.

"The fish are getting protection in a safe place to live and food from the coral," Hay noted. "The coral gets a bodyguard in exchange for a small amount of food. It's kind of like paying taxes in exchange for police protection."

As a next step, Hay and Dixson would like to determine if other species of coral and fish have similar symbiotic relationships. And they'd like to understand more about how the chemical signaling and symbiotic relationship came into being.

"These kinds
'/>"/>

Contact: John Toon
jtoon@gatech.edu
404-894-6986
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Coral scientists use new model to find where corals are most likely to survive climate change
2. Viruses could be the key to healthy corals
3. Less is more for reef-building corals
4. Pacific islands may become refuge for corals in a warming climate, study finds
5. Corals could survive a more acidic ocean
6. Some corals like it hot: Heat stress may help coral reefs survive climate change
7. Breaking up isnt hard to do -- the secret lives of corals on dark and stormy nights
8. Sweet new approach discovered to help produce metal casting parts, reduce toxicity
9. Gladstone, Stanford scientists block toxic protein that plays key role in Lou Gehrigs disease
10. Rice to take part in $10.8 million study of hemoglobin toxicity
11. Einstein researcher receives $10.8 million grant to study toxic blood reactions caused by hemoglobin
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Corals attacked by toxic seaweed use chemical 911 signals to summon help  
(Date:12/17/2014)... 2014 Valencell, a leader in performance biometric data ... industry leaders such as Intel, Jabra, Atlas, and Scosche ... products. These products will be showcased at CES 2015, ... . "Our partners choose PerformTek ...
(Date:12/11/2014)... Dec. 09, 2014 Research and Markets ... http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the addition of the ... their offering. One major trend emerging ... advances in technology, it is important to upgrade biometric ...
(Date:12/10/2014)... You,ve been here before: you desperately need to sign into your ... the answer to your secret question. What,s your dog,s birthday? Who ... Labs , a digital infrastructure security company, launches the ... comes with usernames, passwords and PINs – 1U TM ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... Eating less during early pregnancy impaired fetal brain development in ... Health Science Center San Antonio reported today. The researchers ... of growth factors in the fetuses of mothers fed a ... a critical time window when many of the neurons as ...
... Mixing commonly used antibiotics with common blood pressure ... and induce shock in older patients, requiring hospitalization, ... ( Canadian Medical Association Journal ) (pre-embargo ... (erythromycin, clarithromycin and azithromycin) are among the most ...
... the January and February issues of the Journal ... and colleagues have extensively characterized a previously unidentified process ... membrane can be reversibly endocytosed. This massive endocytosis ... types with a range of different experimental manipulations, including ...
Cached Biology News:Reducing diet early in pregnancy stunts fetal brain development 2
(Date:1/22/2015)... January 22, 2015 Diagenode, Inc., ... as the Bioruptor® and complete solutions for epigenetics ... chromatin immunoprecipitation, alleviating the need for manual processing. ... needed for ChIP of histones or transcription factors ...
(Date:1/22/2015)... DIEGO , Jan. 22, 2015   Cypher ... and Sequenom, Inc. (NASDAQ: SQNM ), ... development agreement for next generation noninvasive prenatal tests ... genome interpretation technology, called Mantis™, to advance analysis ...
(Date:1/22/2015)... , a precision medicine software company that has developed a ... genomic, imaging and other biomedical data in research and clinical ... CEO of Aspera, an IBM Company, to its board as ... "We are pleased to welcome Michelle to ...
(Date:12/25/2014)... The report “Service Quality Management and Telco ... Type - Global Advancements, Worldwide Forecasts & Analysis (2014-2019)” ... and forecasting of revenues. , Browse 152 market ... in-depth TOC on “Service Quality Management (SQM) and Telco ...
Breaking Biology Technology:Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4GenoSpace Expands Board with Appointment of Michelle Munson 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4
... 16 /PRNewswire-FirstCall/ - Oncolytics Biotech Inc.,("Oncolytics") (TSX:ONC, NASDAQ:ONCY) ... group at St. James,s University Hospital in Leeds,U.K. ... April 10 online issue of,Gene Therapy. The paper ... for the Treatment of Melanoma.", The investigators ...
... National Institute of Standards and Technology (NIST), in ... (NASA), has published detailed guidelines* for making essential ... The new guide constitutes the current best practices ... heavily studied of the new generation of nanoscale ...
... NEW HAVEN, Conn., April 15 Vion,Pharmaceuticals, Inc. (Nasdaq: ... a,plan to achieve and sustain compliance with The Nasdaq ... of the plan., Previously, the Company announced that ... The Nasdaq Stock Market, Inc., notifying the Company,that it ...
Cached Biology Technology:Oncolytics Biotech Inc. Announces Gene Therapy Publication on Reovirus Treatment for Melanoma 2Carbon nanotube measurements: latest in NIST 'how-to' series 2Vion Pharmaceuticals Files Plan With Nasdaq 2Vion Pharmaceuticals Files Plan With Nasdaq 3
... high-performance ICP-MS system designed for flexibility and ... II off-axis ion lens, true hyperbolic quadrupole ... handle the widest range of sample types ... now includes as standard Agilents unique ShieldTorch ...
... Model 20-NW cuff pump is a dedicated cuff ... This cuff pump replaces manual inflation and can ... test systems for mouse and rat; from single ... Model 20-NW cuff pump has adjustable cut-off pressure ...
... space and organize gloves, safety glasses, ... are the perfect benchtop storage bins ... processing and manufacturing. Clear static-dissipative PVC ... they attract. Many other sizes and ...
... dUTPase The thermostable dUTPase(pyrococcus ... PCR (using proofreading DNA polymerases). ... PCR reactions and dNTP solutions. ... proofreading DNA polymerase reaction can prevent ...
Biology Products: