Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists gear up to fight deadly snake fungal disease

16.07.2014

Researchers have developed a faster and more accurate way to test for infection with Ophidiomyces ophiodiicola, a fungus that is killing snakes in the Midwest and eastern United States. The test also allows scientists to monitor the progression of the infection in living snakes.

The researchers reported on the test at the 2014 Mycological Society of America Annual Meeting.


The fungus Ophidiomyces ophiodiicola threatens the last population of eastern massasauga rattlesnakes in Illinois.

Credit: Matt Allender

"We need people to know that they don't have to anesthetize an animal to collect a biopsy sample or, worse yet, euthanize snakes in order to test for the infection," said University of Illinois comparative biosciences department professor Matthew Allender, an expert in snake fungal disease. "Now we can identify the infections earlier, we can intervene earlier and we can potentially increase our success of treatment or therapy."

The new test uses quantitative polymerase chain reaction (qPCR), which amplifies fungal DNA to identify the species present and measure the extent of infection.

... more about:
»INHS »PCR »bats »biopsy »fungal »fungus »infections

Researchers first took notice of Ophidiomyces (oh-FID-ee-oh-my-sees) in snakes in the mid-2000s. Today the fungus threatens the last remaining eastern massasauga (mass-uh-SAW-guh) rattlesnake population in Illinois and has been found to infect timber rattlesnakes, mud snakes, rat snakes, garter snakes, milk snakes, water snakes and racers in several states, Allender said.

"I've tested snakes from Illinois, Tennessee and Michigan, and we've tested samples from snakes in New Jersey, Georgia and Virginia," Allender said. Snakes in Connecticut, Massachusetts, Minnesota, New Hampshire, New York, Ohio and Wisconsin have also tested positive for the fungus. (Watch a movie about the research)

Ophidiomyces consumes keratin, a key ingredient in snake scales. It can cause scabs, nodules, abnormal molting, ulcers and other disfiguring changes to snake skin. Mortality is 100 percent in Illinois massasauga rattlesnakes found with outward signs of infection, Allender said. There are only 100 to 150 massasaugas left in Illinois, he said, and about 15 percent of those are infected with the disease.

Allender also is an affiliate of the Illinois Natural History Survey, part of the Prairie Research Institute at the U. of I. He and his INHS colleague, mycologist Andrew Miller, liken this emerging fungal disease in snakes to white-nose syndrome, another fungal disease that has killed millions of North American bats. Miller and graduate student Daniel Raudabaugh recently published an analysis of Pseudogymnoascus destructans, the fungus implicated in white-nosed syndrome, and are repeating the analysis on Ophidiomyces.

"The fungus killing these snakes is remarkably similar in its basic biology to the fungus that has killed over 6 million bats," Miller said. "It occurs in the soil, seems to grow on a wide variety of substances, and possesses many of the same enzymes that make the bat fungus so deadly."

Other colleagues at the INHS, herpetologists Michael Dreslik and Chris Phillips, have been studying eastern massasauga rattlesnakes in the wild for 15 years, and are working closely with Allender to characterize both biological and health factors that lead to infection. The new qPCR test is integral to this mission, Allender said. It also will help the team develop new therapies to treat infections in snakes.

"This work is truly collaborative across disciplines, allowing the team to make advances in studying this disease that haven't been accomplished anywhere else," Allender said.

"Our qPCR is more than 1,000 times more sensitive than conventional PCR," Allender said. "We can know how many [fungal spores] are in a swab and then we can start to treat the snake and we can watch to see if that number is going down."

The researchers also are hoping to find new disinfectants that will kill the fungus so that researchers who are studying snakes in the wild will not spread it to new locales on their equipment or shoes.

"Some of our preliminary studies show that the common disinfectants that we use are not effective," Allender said. "This fungus overcomes it."

###

The Illinois Wildlife Preservation Fund Grant Program, offered through the Illinois Department of Natural Resources, provided support for this work. Funds for this program are generated through the tax check-off offered on Illinois income tax returns.

Editor's notes: To reach Matthew Allender, call 217-265-0320; email mcallend@illinois.edu.

Diana Yates | University of Illinois

Further reports about: INHS PCR bats biopsy fungal fungus infections

More articles from Life Sciences:

nachricht An evolutionary heads-up – The brain size advantage
22.05.2015 | Veterinärmedizinische Universität Wien

nachricht Endocrine disrupting chemicals in baby teethers
21.05.2015 | Goethe-Universität Frankfurt am Main

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Basel Physicists Develop Efficient Method of Signal Transmission from Nanocomponents

Physicists have developed an innovative method that could enable the efficient use of nanocomponents in electronic circuits. To achieve this, they have developed a layout in which a nanocomponent is connected to two electrical conductors, which uncouple the electrical signal in a highly efficient manner. The scientists at the Department of Physics and the Swiss Nanoscience Institute at the University of Basel have published their results in the scientific journal “Nature Communications” together with their colleagues from ETH Zurich.

Electronic components are becoming smaller and smaller. Components measuring just a few nanometers – the size of around ten atoms – are already being produced...

Im Focus: IoT-based Advanced Automobile Parking Navigation System

Development and implementation of an advanced automobile parking navigation platform for parking services

To fulfill the requirements of the industry, PolyU researchers developed the Advanced Automobile Parking Navigation Platform, which includes smart devices,...

Im Focus: First electrical car ferry in the world in operation in Norway now

  • Siemens delivers electric propulsion system and charging stations with lithium-ion batteries charged from hydro power
  • Ferry only uses 150 kilowatt hours (kWh) per route and reduces cost of fuel by 60 percent
  • Milestone on the road to operating emission-free ferries

The world's first electrical car and passenger ferry powered by batteries has entered service in Norway. The ferry only uses 150 kWh per route, which...

Im Focus: Into the ice – RV Polarstern opens the arctic season by setting course for Spitsbergen

On Tuesday, 19 May 2015 the research icebreaker Polarstern will leave its home port in Bremerhaven, setting a course for the Arctic. Led by Dr Ilka Peeken from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) a team of 53 researchers from 11 countries will investigate the effects of climate change in the Arctic, from the surface ice floes down to the seafloor.

RV Polarstern will enter the sea-ice zone north of Spitsbergen. Covering two shallow regions on their way to deeper waters, the scientists on board will focus...

Im Focus: Gel filled with nanosponges cleans up MRSA infections

Nanoengineers at the University of California, San Diego developed a gel filled with toxin-absorbing nanosponges that could lead to an effective treatment for skin and wound infections caused by MRSA (methicillin-resistant Staphylococcus aureus), an antibiotic-resistant bacteria. This "nanosponge-hydrogel" minimized the growth of skin lesions on mice infected with MRSA - without the use of antibiotics. The researchers recently published their findings online in Advanced Materials.

To make the nanosponge-hydrogel, the team mixed nanosponges, which are nanoparticles that absorb dangerous toxins produced by MRSA, E. coli and other...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International symposium: trends in spatial analysis and modelling for a more sustainable land use

20.05.2015 | Event News

15th conference of the International Association of Colloid and Interface Scientists

18.05.2015 | Event News

EHFG 2015: Securing health in Europe. Balancing priorities, sharing responsibilities

12.05.2015 | Event News

 
Latest News

Mesoporous Particles for the Development of Drug Delivery System Safe to Human Bodies

22.05.2015 | Materials Sciences

Computing at the Speed of Light

22.05.2015 | Information Technology

Development of Gold Nanoparticles That Control Osteogenic Differentiation of Stem Cells

22.05.2015 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>