sail-world.com
 
 
News Home Cruising Photo Gallery Video Gallery

 

Sail-World.com : Scientists identify source of coral reef infections

Scientists identify source of coral reef infections

'A green fluorescent protein (GFP) labeled strain of the coral pathogen Vibrio coralliilyticus'    ARC Centre of Excellence Coral Reef Studies ©

Countless of coral reefs around the world have been infected by unknown culprits. These infections can now be identified with technology normally used to diagnose human diseases, marine researchers say.

Coral researchers and reef managers will be able to identify coral infections using a new method that allows them to classify specific diseases based on the presence of microbes.

This could lead to more effective action to reduce the impact of disease on the world's imperilled coral reefs.
'Current classification of coral diseases is mostly based on a description of how the coral has deteriorated, such as the pattern of tissue loss and abnormal colours,' says Joseph Pollock, a PhD student at the ARC Centre of Excellence for Coral Reef Studies. 'This is an ineffective way to identify coral diseases because different diseases can often look very similar. For instance, in the Caribbean alone, more than six 'white' diseases show the same characteristics of tissue loss exposing white coral skeletons.

Coral diseases can be caused by a number of different microbes, including viruses, bacteria and fungi. Knowing exactly which toxic organism leads to a particular disease is therefore important for accurate diagnosis – and for planning how to manage or control its impact.

One of Pollock’s supervisors, David Bourne from the Australian Institute of Marine Science, says that the recent worldwide decline of coral reefs has been accompanied by increased disease, creating an urgent need for a deeper understanding of the various diseases, including what harmful bacteria and viruses contribute to different coral diseases, what triggers them and how they spread.

'Instead of relying on appearances to tell us what disease the corals have, we need to determine what’s happening to them before the symptoms show. This will help us to control, or reduce the impacts.'

By applying a diagnostic technology commonly used in human disease identification or in forensics, Mr Pollock has found a diagnostic method that can accurately detect and quantify the coral pathogens in a sample of diseased coral.

'The technology is called quantitative-PCR (qPCR) and is often used in human medical research. qPCR works as a genetic fingerprinting technique that both detects and quantifies a specific DNA molecule in a sample. It can detect pathogens at even very low levels – as few as a couple of bacteria in a cup of seawater,' Mr Pollock says.

Apart from testing corals for the presence of pathogens, researchers can also use the technology on water samples to gauge the general health of the wider coral reef environment, Mr Pollock says.

'This technology is sure to have many applications in the future', he says, 'as marine environments are put under pressure by multiple impacts from rapid coastal development, declining water quality, and climate change'.

The group’s paper The urgent need for robust coral diseases diagnostics by F Joseph Pollock, Pamela J Morries, Bette L Willis and David G Bourne was published in PLoS Pathogens on 20 October 2011.

Acropora millepora coral colony infected with the coral disease white syndrome, one of many coral diseases impacting coral reefs worldwide -  ARC Centre of?nid=91389 Excellence Coral Reef Studies ©   Click Here to view large photo

ARC Centre of Excellence for Coral Reef Studies website




by ARC Centre of Excellence for Coral Reef Studies

  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=91389

11:23 AM Fri 2 Dec 2011 GMT






Click here for printer friendly version
Click here to send us feedback or comments about this story.


News - USA and the World





ISAF Sailing Worlds, Santander - Strong competition for RS:X fleets by Olga Maslivets, International RS:X Class Assoc.,


































470 Men and Women Worlds - Game on for Olympic Qualification by 470 International Association Class,












A complete recap of the most successful Melges 20 World Championship by International Audi Melges 20 Class Association,




ISAF Santander - Upwards path for Austrian women's 470 crew + video by Luissa Smith, International 470 Class Association,












ISAF Sailing World Championships - Day 4 images from Santander
ISAF Sailing Worlds, Santander: Emerging Nations Program sailors shine
ISAF Sailing Worlds, Santander - Teasing winds play havoc on day 4
ISAF Sailing World Championships: Hot conditions in Santander on day 4
Santander ISAF Sailing World Championships joins Bart’s Bash
PWA Cold Hawaii World Cup - Grounded fishing boat creates problems
Marseille One Design - GC32 Armin Strom Sailing Team emerge victorious
Rolex Big Boat Series 2014 - Ready for another 50 years
2014 Rolex Big Boat Series - Farr 40 Day 4
2014 Rolex Swan Cup - Eleventh-hour victories
Extreme Sailing Series - Kiwis clinch Act win in Istanbul + Video
2014 Rolex Big Boat Series - Two long races today for the J70 fleet
2014 Rolex Big Boat Series - Impressive to sail out of the Golden Gate
Extreme Sailing Series - Istanbul delivers four days of great racing
ISAF Sailing Worlds Santander - Day 3 images by Sail-World.com
Extreme Sailing Series: Emirates Team NZ bounces back for series win
Santander 2014 ISAF Worlds - Light winds and current test six classes
ISAF Sailing World Championships - Solid Day 3 for US Sailing Team
ISAF Sailing World Championships - Day 3 images by Jesus Renedo
Marseille One Design 2014 - GC32 Armin Strom blitzes final day
Volvo Ocean Race 2014-15 - Una Etapa 0 complicada para todos   
Santander 49ers: Olympic Gold Medallist says two into 90 does not go!! *Feature   
GBR aiming for first ever Nacra 17 Games berth at Santander Worlds   
Volvo Ocean Race: Man and sail overboard as Leg 0 serves up drama   
ISAF Sailing World Championships Santander 2014 – Images by Dan Ibsen   
Santander Worlds – already a spectator success   
ISAF Sailing World Championships Santander 2014 - Day 3 morning report   
Volvo Ocean Race 2014-15 - Tales from the extreme   
Volvo Ocean Race: Latest starter wins opening race   
2014 J/70 World Championship - Healy, Abdullah, Becker and Borges win   
2014 Rolex Big Boat Series - Full-blown, once again   
ISAF Worlds - Americans jump up Laser and Laser Radial leaderboard   
2014 Rolex Big Boat Series - Farr 40 Day 3   
ISAF Sailing World Championships - Day 2 images from Sail-World.com   
America's Cup: Luna Rossa sailing with two foiling AC45's + Video   
Extreme Sailing: Emirates Team NZ retain second overall   
ISAF Sailing Worlds, Santander - Rio Olympic Laser spots snapped up   
Rolex Swan Cup - All set for final showdown   
Upper Midwest sailors need help to take it to the next level   
ISAF Sailing World Championships - RS:X action begins in Santander   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL NEW US
LocalAds   DE  ES  FR  IT