Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New test to detect aquatic pests

21.04.2004


CSIRO marine scientists have developed a technique that gives new hope in the battle to stop the spread of aquatic pests




"What we have is a probe acting as a magnet to detect a needle in a haystack," says Dr Jawahar Patil, who designed the technique which has been successfully tested in Australia.

The new DNA probe involves seawater sample extraction of DNA, and amplification of a target specific "DNA signature or fingerprint" to identify the presence of pest species in water.


This means that aquatic pests in ballast water can now be confirmed without costly screening and can be uniquely identified at the larval and juvenile stages, a process welcomed by shipowners.

"The test is a world-first in this field of research that we would not have dreamed possible a decade ago," said Teresa Hatch, Manager of Operations, Ship Safety at the Australian Shipowners Association.

"It will save the shipping industry money in the long-run and give Australia’s coastal environment a new level of protection," said Ms Hatch.

A senior marine ecologist at CSIRO, Dr Nic Bax, said the technique provided another level of understanding of the risks of marine invasions as well as greater protection against species which posed a risk to human health or could alter the balance of nature in the marine environment.

The species-specific probes have been developed for three high-priority species in Australia’s south-east:
  • The Northern Pacific seastar (Asterias amurensis)
  • The Pacific oyster (Crassostrea gigas)
  • The toxic dinoflagellate (Gymnodinium catenatum)

"Looking for larval pests in water samples is like looking for a needle in a hay stack and the probes give us a new set of eyes for the marine environment," said Dr Jawahar Patil, who led the research team, including Dr Bax, Mr Bruce Deagle and Dr Rasanthi Gunasekera, all from CSIRO.

Development of the probes has been undertaken in partnership with shipping and port industries and the Australian Quarantine and Inspection Service. It has been funded by the Commonwealth Government’s Natural Heritage Trust and the Victorian Government as part of the Port of Hastings National trial of ballast water management.

For more information:

Media assistance: CSIRO Marine Division Craig Macaulay 03 6232 5219 or 0419 966 465
Dr Nic Bax, CSIRO, 03-62325341 (available after 10.30am EST)
Teresa Hatch, Australian Shipowners Association 03 9646 0755
Coast to Coast 04 conference media contact: Jess Tyler, 0408 298 292

Geraldine Capp | CSIRO
Further information:
http://www.csiro.au/index.asp?type=mediaRelease&id=geneprobe

More articles from Process Engineering:

nachricht Quick, Precise, but not Cold
17.05.2017 | Fraunhofer-Institut für Lasertechnik ILT

nachricht A laser for divers
03.05.2017 | Laser Zentrum Hannover e.V.

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Strathclyde-led research develops world's highest gain high-power laser amplifier

The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.

The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

Camera on NASA's Lunar Orbiter survived 2014 meteoroid hit

29.05.2017 | Physics and Astronomy

Strathclyde-led research develops world's highest gain high-power laser amplifier

29.05.2017 | Physics and Astronomy

A 3-D look at the 2015 El Niño

29.05.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>